{"id":13375,"date":"2026-06-15T05:03:24","date_gmt":"2026-06-15T05:03:24","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13375"},"modified":"2026-06-15T05:03:24","modified_gmt":"2026-06-15T05:03:24","slug":"silicon-carbide-abrasive-blasting-media-complete-buyers-guide","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/zh\/resource\/blog\/silicon-carbide-abrasive-blasting-media-complete-buyers-guide\/","title":{"rendered":"Silicon Carbide Abrasive Blasting Media:\u00a0Complete Buyer&#8217;s Guide"},"content":{"rendered":"<style>\n  \/* \u2500\u2500 Reset & base \u2500\u2500 *\/\n  .hlh-pillar *,\n  .hlh-pillar *::before,\n  .hlh-pillar *::after { box-sizing: border-box; margin: 0; padding: 0; }\n\n  \/* \u2500\u2500 Design tokens \u2500\u2500 *\/\n  .hlh-pillar {\n    --c-bg:        #0d1117;\n    --c-surface:   #161b22;\n    --c-panel:     #1c2330;\n    --c-border:    #2a3444;\n    --c-accent:    #e8700a;\n    --c-accent2:   #f0920d;\n    --c-steel:     #8fa3bc;\n    --c-text:      #d4dbe5;\n    --c-heading:   #eef2f7;\n    --c-muted:     #5a6a7e;\n    --c-tag-bg:    #1f2d3d;\n    --c-tag-text:  #7eb8e8;\n    --c-toc-bg:    #12171e;\n    --c-warn:      #e8700a;\n\n    --f-display: 'Georgia', 'Times New Roman', serif;\n    --f-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;\n    --f-mono:    'Courier New', monospace;\n\n    --r-sm: 4px;\n    --r-md: 8px;\n    --r-lg: 12px;\n\n    font-family: var(--f-body);\n    font-size: 16px;\n    line-height: 1.75;\n    color: var(--c-text);\n    background: var(--c-bg);\n    padding: 0 0 80px 0;\n    max-width: 100%;\n    overflow-x: hidden;\n  }\n\n  \/* \u2500\u2500 Hero \u2500\u2500 *\/\n  .hlh-hero {\n    background: linear-gradient(135deg, #0d1117 0%, #12202e 55%, #1a2e1a 100%);\n    border-bottom: 3px solid var(--c-accent);\n    padding: 72px 5% 64px;\n    position: relative;\n    overflow: hidden;\n  }\n  .hlh-hero::before {\n    content: '';\n    position: absolute;\n    inset: 0;\n    background: repeating-linear-gradient(\n      45deg,\n      transparent,\n      transparent 40px,\n      rgba(232,112,10,0.03) 40px,\n      rgba(232,112,10,0.03) 41px\n    );\n  }\n  .hlh-hero-eyebrow {\n    display: inline-block;\n    font-family: var(--f-mono);\n    font-size: 11px;\n    letter-spacing: .18em;\n    text-transform: uppercase;\n    color: var(--c-accent);\n    border: 1px solid var(--c-accent);\n    padding: 4px 12px;\n    border-radius: var(--r-sm);\n    margin-bottom: 22px;\n    position: relative;\n  }\n  .hlh-hero h1 {\n    font-family: var(--f-display);\n    font-size: clamp(28px, 4.5vw, 52px);\n    font-weight: 700;\n    color: var(--c-heading);\n    line-height: 1.18;\n    max-width: 820px;\n    position: relative;\n    margin-bottom: 22px;\n  }\n  .hlh-hero h1 em {\n    font-style: normal;\n    color: var(--c-accent);\n  }\n  .hlh-hero-sub {\n    font-size: 17px;\n    color: var(--c-steel);\n    max-width: 680px;\n    line-height: 1.7;\n    position: relative;\n    margin-bottom: 36px;\n  }\n  .hlh-hero-meta {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 20px;\n    align-items: center;\n    position: relative;\n  }\n  .hlh-meta-item {\n    font-size: 12px;\n    color: var(--c-muted);\n    display: flex;\n    align-items: center;\n    gap: 6px;\n  }\n  .hlh-meta-item span { color: var(--c-steel); 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font-size: 14.5px; color: var(--c-steel); }\n\n  \/* \u2500\u2500 Tag chips \u2500\u2500 *\/\n  .hlh-tags {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n    margin: 16px 0;\n  }\n  .hlh-tag {\n    background: var(--c-tag-bg);\n    color: var(--c-tag-text);\n    font-size: 12px;\n    padding: 4px 12px;\n    border-radius: 20px;\n    border: 1px solid rgba(126,184,232,.2);\n    font-family: var(--f-mono);\n  }\n\n  \/* \u2500\u2500 Divider \u2500\u2500 *\/\n  .hlh-divider {\n    border: none;\n    border-top: 1px solid var(--c-border);\n    margin: 40px 0;\n  }\n\n  \/* \u2500\u2500 Inline link pill \u2500\u2500 *\/\n  .hlh-link-pill {\n    display: inline-flex;\n    align-items: center;\n    gap: 5px;\n    background: rgba(232,112,10,0.1);\n    border: 1px solid rgba(232,112,10,0.3);\n    border-radius: 20px;\n    padding: 2px 12px 2px 10px;\n    font-size: 13px;\n    color: var(--c-accent2);\n    text-decoration: none;\n    font-weight: 500;\n    transition: background .15s;\n    white-space: nowrap;\n  }\n  .hlh-link-pill:hover {\n    background: rgba(232,112,10,0.2);\n    color: var(--c-heading);\n    text-decoration: none;\n  }\n  .hlh-link-pill::before { content: '\u2192'; font-size: 12px; }\n\n  \/* \u2500\u2500 Safety list \u2500\u2500 *\/\n  .hlh-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));\n    gap: 12px;\n    margin: 16px 0;\n  }\n  .hlh-safety-item {\n    background: var(--c-panel);\n    border: 1px solid var(--c-border);\n    border-radius: var(--r-md);\n    padding: 16px;\n    font-size: 13.5px;\n    color: var(--c-steel);\n    display: flex;\n    gap: 12px;\n    align-items: flex-start;\n  }\n  .hlh-safety-item span:first-child { font-size: 18px; flex-shrink: 0; }\n\n  \/* \u2500\u2500 Author footer \u2500\u2500 *\/\n  .hlh-author {\n    background: var(--c-surface);\n    border: 1px solid var(--c-border);\n    border-radius: var(--r-lg);\n    padding: 24px 28px;\n    display: flex;\n    gap: 20px;\n    align-items: center;\n    margin-top: 48px;\n  }\n  .hlh-author-avatar {\n    width: 52px;\n    height: 52px;\n    border-radius: 50%;\n    background: var(--c-accent);\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    font-size: 22px;\n    flex-shrink: 0;\n  }\n  .hlh-author-name {\n    font-size: 15px;\n    font-weight: 700;\n    color: var(--c-heading);\n    margin-bottom: 4px;\n  }\n  .hlh-author-bio {\n    font-size: 13px;\n    color: var(--c-muted);\n    line-height: 1.5;\n  }\n\n  \/* \u2500\u2500 Responsive \u2500\u2500 *\/\n  @media (max-width: 900px) {\n    .hlh-layout { grid-template-columns: 1fr; padding: 0 4%; }\n    .hlh-toc-wrap { position: static; padding: 24px 0 0; }\n    .hlh-article { padding: 24px 0; }\n    .hlh-stats { grid-template-columns: repeat(2, 1fr); }\n    .hlh-stat:nth-child(2) { border-right: none; }\n    .hlh-vs-wrap { grid-template-columns: 1fr; }\n    .hlh-vs-divider { display: none; }\n  }\n  @media (max-width: 600px) {\n    .hlh-hero { padding: 48px 5% 40px; }\n    .hlh-stats { grid-template-columns: repeat(2, 1fr); }\n    .hlh-cluster-grid { grid-template-columns: 1fr; }\n    .hlh-cta-section { padding: 36px 24px; }\n  }\n<\/style>\n\n<div class=\"hlh-pillar\">\n\n  <!-- \u2550\u2550 HERO \u2550\u2550 -->\n  <div class=\"hlh-hero\">\n    <div class=\"hlh-hero-eyebrow\">Technical Resource \u00b7 Jiangsu Henglihong Technology Co., Ltd.<\/div>\n    <h1>Silicon Carbide Abrasive Blasting Media: <em>Complete Buyer&#8217;s Guide<\/em><\/h1>\n    <p class=\"hlh-hero-sub\">Everything industrial buyers, surface-prep engineers, and procurement teams need to know \u2014 from material science and grit selection to application-specific recommendations and sourcing from verified manufacturers.<\/p>\n    <div class=\"hlh-hero-meta\">\n      <div class=\"hlh-meta-item\">\ud83d\udcc5 <span>Updated June 2026<\/span><\/div>\n      <div class=\"hlh-meta-dot\"><\/div>\n      <div class=\"hlh-meta-item\">\u270d\ufe0f <span>Henglihong Technical Team<\/span><\/div>\n      <div class=\"hlh-meta-dot\"><\/div>\n      <div class=\"hlh-meta-item\">\u23f1\ufe0f <span>~18 min read<\/span><\/div>\n      <div class=\"hlh-meta-dot\"><\/div>\n      <div class=\"hlh-meta-item\">\ud83c\udfed <span>Industrial Grade Content<\/span><\/div>\n    <\/div>\n  <\/div>\n\n  <!-- \u2550\u2550 STATS STRIP \u2550\u2550 -->\n  <div class=\"hlh-stats\">\n    <div class=\"hlh-stat\">\n      <span class=\"hlh-stat-num\">9.5<\/span>\n      <span class=\"hlh-stat-label\">Mohs Hardness \u2014 Near-Diamond<\/span>\n    <\/div>\n    <div class=\"hlh-stat\">\n      <span class=\"hlh-stat-num\">2\u20133\u00d7<\/span>\n      <span class=\"hlh-stat-label\">Faster Than Aluminum Oxide<\/span>\n    <\/div>\n    <div class=\"hlh-stat\">\n      <span class=\"hlh-stat-num\">20\u20131200<\/span>\n      <span class=\"hlh-stat-label\">Grit Range Available (mesh)<\/span>\n    <\/div>\n    <div class=\"hlh-stat\">\n      <span class=\"hlh-stat-num\">3\u20135\u00d7<\/span>\n      <span class=\"hlh-stat-label\">Typical Reuse Cycles<\/span>\n    <\/div>\n  <\/div>\n\n  <!-- \u2550\u2550 LAYOUT \u2550\u2550 -->\n  <div class=\"hlh-layout\">\n\n    <!-- TOC sidebar -->\n    <aside class=\"hlh-toc-wrap\">\n      <nav class=\"hlh-toc\" aria-label=\"Table of Contents\">\n        <div class=\"hlh-toc-title\">Contents<\/div>\n        <ol>\n          <li><a href=\"#what-is-sic\">What Is Silicon Carbide Blasting Media?<\/a><\/li>\n          <li><a href=\"#how-sic-is-made\">How Silicon Carbide Is Manufactured<\/a><\/li>\n          <li><a href=\"#key-properties\">Key Technical Properties<\/a><\/li>\n          <li><a href=\"#types\">Types: Black vs. Green SiC<\/a><\/li>\n          <li><a href=\"#grit-sizes\">Grit Sizes &#038; Surface Profiles<\/a><\/li>\n          <li><a href=\"#applications\">Top Industrial Applications<\/a><\/li>\n          <li><a href=\"#vs-ao\">SiC vs. Aluminum Oxide<\/a><\/li>\n          <li><a href=\"#vs-other\">SiC vs. Other Blast Media<\/a><\/li>\n          <li><a href=\"#how-to-choose\">How to Choose the Right Grade<\/a><\/li>\n          <li><a href=\"#recyclability\">Recyclability &#038; Cost Analysis<\/a><\/li>\n          <li><a href=\"#blasting-process\">Blasting Process Overview<\/a><\/li>\n          <li><a href=\"#safety\">Safety &#038; Handling<\/a><\/li>\n          <li><a href=\"#sourcing\">Sourcing &#038; Procurement Guide<\/a><\/li>\n          <li><a href=\"#faq\">Frequently Asked Questions<\/a><\/li>\n          <li><a href=\"#related-topics\">Related Topics<\/a><\/li>\n        <\/ol>\n        <a class=\"hlh-toc-cta\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Request a Quote \u2192<\/a>\n      <\/nav>\n    <\/aside>\n\n    <!-- Article -->\n    <article class=\"hlh-article\">\n\n      <!-- \u2550\u2550 SECTION 1 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"what-is-sic\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 01<\/span>What Is Silicon Carbide Abrasive Blasting Media?<\/h2>\n\n        <p>Silicon carbide (SiC) abrasive blasting media is a synthetic crystalline ceramic abrasive manufactured from silica sand and carbon at extremely high temperatures. Commercially known under trade names such as Carborundum, it ranks among the hardest industrial minerals in existence \u2014 second only to diamond and cubic boron nitride on the Mohs scale. When used as a blasting medium, it propels sharp, angular particles at high velocity toward a target surface to clean, etch, profile, or deburr that surface with exceptional speed and precision.<\/p>\n\n        <p>In practical terms, silicon carbide blasting media is the abrasive of choice when other media simply cannot cut fast enough, hard enough, or cleanly enough. Its angular fracture morphology creates a surface profile that promotes outstanding mechanical adhesion for coatings, while its thermal stability makes it suitable for applications where heat generation during blasting would compromise other abrasives.<\/p>\n\n        <div class=\"hlh-highlight\">\n          <p><strong>Industry definition:<\/strong> Silicon carbide abrasive blasting media is a manufactured, inorganic crystalline abrasive with a Mohs hardness of 9.0\u20139.5, produced via the Acheson process, and applied in dry or wet abrasive blasting systems for aggressive surface preparation, cleaning, etching, and precision cutting of hard substrates.<\/p>\n        <\/div>\n\n        <p>For procurement teams evaluating abrasive media for the first time, it helps to understand what silicon carbide blasting media is <em>not<\/em>: it is not natural sand (which is prohibited in most industrial environments due to silicosis risk), not a soft media like baking soda or plastic bead, and not a metallic abrasive like steel shot or cut wire. It occupies the premium end of the synthetic mineral abrasive category, positioned above aluminum oxide in hardness and below diamond in cost-effectiveness.<\/p>\n\n        <div class=\"hlh-tags\">\n          <span class=\"hlh-tag\">SiC<\/span>\n          <span class=\"hlh-tag\">Carborundum<\/span>\n          <span class=\"hlh-tag\">Synthetic Ceramic<\/span>\n          <span class=\"hlh-tag\">Angular Abrasive<\/span>\n          <span class=\"hlh-tag\">Mohs 9.5<\/span>\n          <span class=\"hlh-tag\">Dry Blast Media<\/span>\n          <span class=\"hlh-tag\">Wet Blast Media<\/span>\n        <\/div>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 2 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"how-sic-is-made\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 02<\/span>How Silicon Carbide Is Manufactured<\/h2>\n\n        <p>Understanding the production process of silicon carbide abrasives is essential for buyers who need to specify purity levels, color grades, and structural consistency. The vast majority of industrial silicon carbide is produced through the <strong>Acheson Process<\/strong>, an energy-intensive electrochemical synthesis method developed in the late 19th century that remains the dominant production route to this day.<\/p>\n\n        <h3>The Acheson Process<\/h3>\n        <p>In the Acheson process, a mixture of high-purity silica sand (SiO\u2082) and petroleum coke (carbon source) is packed around a graphite core electrode within a large electric furnace. Electrical current \u2014 typically in the range of 100,000 to 500,000 amperes \u2014 is passed through the graphite core, generating temperatures between 1,700\u00b0C and 2,500\u00b0C (3,100\u00b0F to 4,500\u00b0F). At these extreme temperatures, the reaction proceeds as follows:<\/p>\n\n        <div class=\"hlh-highlight\">\n          <p><strong>Synthesis reaction:<\/strong> SiO\u2082 + 3C \u2192 SiC + 2CO\u2191<\/p>\n          <p>Silica reacts with carbon to produce silicon carbide crystals and gaseous carbon monoxide, which vents from the furnace.<\/p>\n        <\/div>\n\n        <p>The resulting crystalline mass is then crushed, milled, and classified into precise particle size fractions using mechanical screening and air classification. The color, purity, and crystal structure of the final product are determined by the raw material quality, furnace temperature, and duration of the synthesis cycle.<\/p>\n\n        <h3>From Crystal to Blast Media<\/h3>\n        <div class=\"hlh-steps\">\n          <div class=\"hlh-step\">\n            <div class=\"hlh-step-num\">1<\/div>\n            <div class=\"hlh-step-body\">\n              <h4>Raw Crystal Formation<\/h4>\n              <p>Silicon carbide crystals grow around the furnace core over 36\u201372 hours of sustained high-temperature synthesis. The innermost layers form green SiC (higher purity, ~99.5% SiC), while outer layers form black SiC (~97\u201398% SiC) due to lower temperatures and minor impurities.<\/p>\n            <\/div>\n          <\/div>\n          <div class=\"hlh-step\">\n            <div class=\"hlh-step-num\">2<\/div>\n            <div class=\"hlh-step-body\">\n              <h4>Crushing &#038; Milling<\/h4>\n              <p>The cooled crystal mass is mechanically crushed using jaw crushers and roll mills. The resulting angular fragments \u2014 called macro grit \u2014 are then further reduced to target particle sizes through additional milling stages.<\/p>\n            <\/div>\n          <\/div>\n          <div class=\"hlh-step\">\n            <div class=\"hlh-step-num\">3<\/div>\n            <div class=\"hlh-step-body\">\n              <h4>Classification &#038; Screening<\/h4>\n              <p>Particles are screened through vibrating sieves and air classifiers to achieve tight particle size distributions conforming to FEPA, ANSI, or JIS standards. This step determines the grit number of the final product.<\/p>\n            <\/div>\n          <\/div>\n          <div class=\"hlh-step\">\n            <div class=\"hlh-step-num\">4<\/div>\n            <div class=\"hlh-step-body\">\n              <h4>Washing &#038; Dedusting<\/h4>\n              <p>Classified grit is washed to remove surface contaminants (free silica, carbon residue, metallic impurities) and treated to remove fine dust particles. Magnetic separation may be employed to remove any ferrous contamination.<\/p>\n            <\/div>\n          <\/div>\n          <div class=\"hlh-step\">\n            <div class=\"hlh-step-num\">5<\/div>\n            <div class=\"hlh-step-body\">\n              <h4>Quality Control &#038; Packaging<\/h4>\n              <p>Final product undergoes chemical analysis (SiC content, Fe\u2082O\u2083 levels, free carbon, free SiO\u2082), physical testing (bulk density, particle shape index), and packaging in moisture-resistant containers \u2014 typically 25 kg bags, 50 kg bags, or 1-tonne bulk super sacks.<\/p>\n            <\/div>\n          <\/div>\n        <\/div>\n\n        <p>China produces over 80% of the world&#8217;s silicon carbide, with major production centers in Gansu, Ningxia, Qinghai, and Xinjiang provinces. <strong>\u6c5f\u82cf\u6052\u5229\u5b8f\u79d1\u6280\u80a1\u4efd\u6709\u9650\u516c\u53f8<\/strong> sources directly from verified upstream SiC smelters, applying additional downstream processing and quality control to meet the specific purity and sizing requirements of industrial blasting applications.<\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 3 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"key-properties\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 03<\/span>Key Technical Properties of Silicon Carbide Blast Media<\/h2>\n\n        <p>The technical superiority of silicon carbide blasting media over most competing abrasives stems from a combination of physical and chemical properties that are difficult to replicate in any single alternative material. The following properties collectively explain why SiC is the preferred abrasive in demanding precision and high-hardness applications.<\/p>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>Property<\/th>\n                <th>Silicon Carbide (SiC)<\/th>\n                <th>Aluminum Oxide (Al\u2082O\u2083)<\/th>\n                <th>\u94a2\u7802<\/th>\n                <th>\u77f3\u69b4\u77f3<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>\u83ab\u6c0f\u786c\u5ea6<\/strong><\/td>\n                <td><span class=\"hlh-badge hlh-badge-green\">9.0 \u2013 9.5<\/span><\/td>\n                <td>8.0 \u2013 9.0<\/td>\n                <td>7.0 \u2013 8.0<\/td>\n                <td>6.5 \u2013 7.5<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Crystal Structure<\/strong><\/td>\n                <td>Hexagonal \/ Cubic<\/td>\n                <td>Trigonal (Corundum)<\/td>\n                <td>BCC Iron (Martensite)<\/td>\n                <td>Cubic \/ Tetragonal<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>\u7c92\u5b50\u5f62\u72b6<\/strong><\/td>\n                <td>Sharp angular<\/td>\n                <td>Sub-angular<\/td>\n                <td>Angular \/ Round<\/td>\n                <td>Sub-angular<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>\u5bc6\u5ea6\uff08\u514b\/\u7acb\u65b9\u5398\u7c73\uff09<\/strong><\/td>\n                <td>3.20 \u2013 3.22<\/td>\n                <td>3.94 \u2013 3.99<\/td>\n                <td>7.4 \u2013 7.8<\/td>\n                <td>3.9 \u2013 4.3<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Thermal Conductivity<\/strong><\/td>\n                <td><span class=\"hlh-badge hlh-badge-green\">120\u2013490 W\/m\u00b7K<\/span><\/td>\n                <td>30 W\/m\u00b7K<\/td>\n                <td>~50 W\/m\u00b7K<\/td>\n                <td>~6 W\/m\u00b7K<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Thermal Stability<\/strong><\/td>\n                <td>Up to 1600\u00b0C<\/td>\n                <td>Up to 1000\u00b0C<\/td>\n                <td>Up to 400\u00b0C<\/td>\n                <td>Up to 450\u00b0C<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Friability<\/strong><\/td>\n                <td>Medium-High<\/td>\n                <td>Medium<\/td>\n                <td>Low<\/td>\n                <td>Medium<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>\u53ef\u56de\u6536\u6027<\/strong><\/td>\n                <td>3\u20135 cycles<\/td>\n                <td>5\u201310 cycles<\/td>\n                <td>100+ cycles<\/td>\n                <td>2\u20134 cycles<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Chemical Inertness<\/strong><\/td>\n                <td>Excellent<\/td>\n                <td>Very Good<\/td>\n                <td>Poor (rusts)<\/td>\n                <td>Good<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Relative Cost (per ton)<\/strong><\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Medium-High<\/span><\/td>\n                <td>Medium<\/td>\n                <td>Low-Medium<\/td>\n                <td>Low-Medium<\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <h3>Why Hardness Matters in Blasting<\/h3>\n        <p>In abrasive blasting, hardness determines how effectively the media can penetrate and disrupt the target surface. An abrasive that is significantly harder than the substrate removes material faster and creates a more defined surface profile. Silicon carbide&#8217;s Mohs 9.5 hardness means it can effectively blast hardened steel (Mohs ~8), ceramics, stone, and reinforced composites \u2014 substrates that would rapidly wear down softer abrasives like garnet or glass bead without achieving the required surface cleanliness or profile depth.<\/p>\n\n        <h3>The Role of Angular Particle Shape<\/h3>\n        <p>Silicon carbide grit is characterized by its sharp, angular fracture surfaces. Unlike rounded media (glass bead, steel shot) which peens and compresses the surface, angular SiC cuts into the substrate with a shearing action. This produces a rougher, more irregular surface anchor profile \u2014 typically measured as Ra (arithmetic mean roughness) or Rz (mean maximum peak-to-valley height) \u2014 which is precisely what high-performance coating systems require for maximum adhesion. Epoxy, zinc-rich primers, thermal spray coatings, and ceramic coatings all benefit from the aggressive profile that silicon carbide creates.<\/p>\n\n        <h3>Thermal Properties: Underrated Advantages<\/h3>\n        <p>Silicon carbide&#8217;s exceptionally high thermal conductivity (120\u2013490 W\/m\u00b7K, depending on crystal orientation and purity) and low thermal expansion coefficient make it one of the few abrasives that can be used at elevated substrate temperatures without structural degradation. This property is particularly valuable in aerospace component preparation, semiconductor wafer processing, and kiln furniture blasting \u2014 applications where substrate temperature during processing may be elevated.<\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 4 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"types\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 04<\/span>Types of Silicon Carbide Blast Media: Black vs. Green<\/h2>\n\n        <p>Two primary commercial grades of silicon carbide are available for abrasive blasting: <strong>Black Silicon Carbide (BSiC)<\/strong> \u548c <strong>Green Silicon Carbide (GSiC)<\/strong>. Both are produced via the Acheson process, but they differ significantly in purity, crystallographic perfection, and intended applications. Choosing the correct type has a direct impact on blasting performance, substrate contamination risk, and total cost of ownership.<\/p>\n\n        <div class=\"hlh-vs-wrap\" style=\"grid-template-columns:1fr auto 1fr;\">\n          <div class=\"hlh-vs-col\">\n            <h4>\u2b1b Black Silicon Carbide<\/h4>\n            <ul class=\"hlh-vs-list pro\">\n              <li>SiC purity: 97\u201398.5%<\/li>\n              <li>Lower production cost<\/li>\n              <li>Suitable for ferrous metal, stone, concrete prep<\/li>\n              <li>Wider commercial availability<\/li>\n              <li>Good for general industrial blasting<\/li>\n              <li>Available in full macro and micro grit range<\/li>\n            <\/ul>\n            <ul class=\"hlh-vs-list con\" style=\"margin-top:10px;\">\n              <li>Minor iron\/aluminum impurities present<\/li>\n              <li>Less suitable for precision semiconductor work<\/li>\n              <li>Slightly lower friability \u2192 coarser breakdown products<\/li>\n            <\/ul>\n          <\/div>\n          <div class=\"hlh-vs-divider\">\n            <span class=\"hlh-vs-badge\">VS<\/span>\n          <\/div>\n          <div class=\"hlh-vs-col\">\n            <h4>\ud83d\udfe2 Green Silicon Carbide<\/h4>\n            <ul class=\"hlh-vs-list pro\">\n              <li>SiC purity: 99.0\u201399.8%<\/li>\n              <li>Sharper crystallographic edges<\/li>\n              <li>Ideal for semiconductor, optics, precision ceramics<\/li>\n              <li>Lower iron contamination risk<\/li>\n              <li>Better for hard, brittle material processing<\/li>\n              <li>Higher thermal conductivity than black grade<\/li>\n            <\/ul>\n            <ul class=\"hlh-vs-list con\" style=\"margin-top:10px;\">\n              <li>25\u201340% higher cost than black SiC<\/li>\n              <li>Fewer large-volume suppliers globally<\/li>\n              <li>Overkill for general metal surface prep<\/li>\n            <\/ul>\n          <\/div>\n        <\/div>\n\n        <div class=\"hlh-note\">\n          <span class=\"hlh-note-icon\">\ud83d\udca1<\/span>\n          <p><strong>Buyer guidance:<\/strong> For the majority of industrial surface preparation applications \u2014 steel fabrication, marine maintenance, heavy equipment refurbishment, and anti-slip surface coating \u2014 Black SiC delivers equivalent blasting performance at lower cost. Green SiC is specifically recommended when substrate contamination from trace metallic impurities would be problematic, such as in semiconductor wafer dicing blade preparation, precision optical component finishing, or aerospace-grade composite surface conditioning.<\/p>\n        <\/div>\n\n        <p>For a detailed technical comparison of these two grades, including specific purity standards and application decision trees, see our dedicated guide: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/black-silicon-carbide-vs-green-silicon-carbide-whats-the-difference\/\" target=\"_blank\" rel=\"noopener\">Black vs. Green Silicon Carbide Explained<\/a><\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 5 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"grit-sizes\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 05<\/span>Grit Sizes, Mesh Numbers &#038; Surface Profiles<\/h2>\n\n        <p>Grit size is the single most critical specification decision in abrasive blasting. It governs the surface profile (roughness) produced on the substrate, the cutting speed, the dust generation, and the finish quality. Silicon carbide blasting media is available in an exceptionally wide range of grit sizes \u2014 from coarse #10 mesh (approximately 2,000 \u00b5m particle diameter) to ultra-fine #1200 mesh (approximately 6 \u00b5m) \u2014 making it one of the most versatile abrasives across the entire blasting and polishing spectrum.<\/p>\n\n        <p>Grit size standards differ by region and industry: FEPA (Federation of European Producers of Abrasives) standards are dominant in Europe and Asia, while ANSI (American National Standards Institute) standards are used in North America. JIS (Japanese Industrial Standards) grades are common in Japan and South Korea. All three use different mesh numbering conventions for the same physical particle size ranges.<\/p>\n\n        <h3>Grit Selection Quick Reference<\/h3>\n\n        <div class=\"hlh-grit-grid\">\n          <div class=\"hlh-grit-card\">\n            <span class=\"hlh-grit-card-num\">#10\u201330<\/span>\n            <span class=\"hlh-grit-card-label\">Coarse<\/span>\n            <span class=\"hlh-grit-card-app\">Heavy rust removal, concrete scarification, structural steel prep (Sa 3)<\/span>\n          <\/div>\n          <div class=\"hlh-grit-card\">\n            <span class=\"hlh-grit-card-num\">#36\u201360<\/span>\n            <span class=\"hlh-grit-card-label\">Medium-Coarse<\/span>\n            <span class=\"hlh-grit-card-app\">Industrial equipment cleaning, mill scale removal, deep anchor profiles<\/span>\n          <\/div>\n          <div class=\"hlh-grit-card\">\n            <span class=\"hlh-grit-card-num\">#80\u2013120<\/span>\n            <span class=\"hlh-grit-card-label\">Medium<\/span>\n            <span class=\"hlh-grit-card-app\">Paint stripping, glass etching (decorative), coating adhesion prep<\/span>\n          <\/div>\n          <div class=\"hlh-grit-card\">\n            <span class=\"hlh-grit-card-num\">#150\u2013220<\/span>\n            <span class=\"hlh-grit-card-label\">Medium-Fine<\/span>\n            <span class=\"hlh-grit-card-app\">Precision glass etching, ceramic surface conditioning, aerospace prep<\/span>\n          <\/div>\n          <div class=\"hlh-grit-card\">\n            <span class=\"hlh-grit-card-num\">#240\u2013400<\/span>\n            <span class=\"hlh-grit-card-label\">Fine<\/span>\n            <span class=\"hlh-grit-card-app\">Optical component lapping, semiconductor substrate prep, fine deburring<\/span>\n          <\/div>\n          <div class=\"hlh-grit-card\">\n            <span class=\"hlh-grit-card-num\">#500\u20131200<\/span>\n            <span class=\"hlh-grit-card-label\">Ultra-Fine<\/span>\n            <span class=\"hlh-grit-card-app\">Precision lapping of ceramics, silicon wafer processing, optical polishing<\/span>\n          <\/div>\n        <\/div>\n\n        <h3>Understanding Surface Profile Depth<\/h3>\n        <p>Coarser grits produce deeper surface profiles with higher Ra values, which increases the mechanical bonding area for coatings but also requires more coating material to achieve full coverage. Finer grits produce shallower profiles with lower Ra values, which is preferable for precision applications where dimensional tolerances must be maintained, or where a smooth base finish is required for thin-film coatings.<\/p>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>Grit (FEPA)<\/th>\n                <th>Approx. Particle Size (\u00b5m)<\/th>\n                <th>Typical Ra (\u00b5m)<\/th>\n                <th>Primary Application<\/th>\n                <th>Blasting Speed<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>#24<\/strong><\/td>\n                <td>850\u2013710<\/td>\n                <td>10\u201318<\/td>\n                <td>Heavy descaling, structural steel<\/td>\n                <td><span class=\"hlh-badge hlh-badge-green\">Very Fast<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>#60<\/strong><\/td>\n                <td>355\u2013250<\/td>\n                <td>5\u201310<\/td>\n                <td>Mill scale, general metal prep<\/td>\n                <td><span class=\"hlh-badge hlh-badge-green\">Fast<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>#100<\/strong><\/td>\n                <td>180\u2013150<\/td>\n                <td>3\u20135<\/td>\n                <td>Coating prep, paint stripping<\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Moderate<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>#180<\/strong><\/td>\n                <td>106\u201390<\/td>\n                <td>1.5\u20133<\/td>\n                <td>Glass etching, fine ceramic prep<\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Moderate<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>#320<\/strong><\/td>\n                <td>46\u201340<\/td>\n                <td>0.5\u20131.5<\/td>\n                <td>Lapping, precision substrate prep<\/td>\n                <td><span class=\"hlh-badge hlh-badge-red\">Slow<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>#600<\/strong><\/td>\n                <td>23\u201318<\/td>\n                <td>0.1\u20130.5<\/td>\n                <td>Optical polishing, wafer prep<\/td>\n                <td><span class=\"hlh-badge hlh-badge-red\">Very Slow<\/span><\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <p>For a comprehensive reference with downloadable grit selection charts, read our full guide: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-grit-size-chart-how-to-choose-the-right-mesh-for-blasting\/\" target=\"_blank\" rel=\"noopener\">Silicon Carbide Grit Size Chart &#038; Selection Guide<\/a><\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 6 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"applications\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 06<\/span>Top Industrial Applications<\/h2>\n\n        <p>Silicon carbide abrasive blasting media serves an extraordinarily broad range of industrial applications, spanning from heavy infrastructure maintenance to high-precision semiconductor manufacturing. The unifying factor across all these applications is the need for a fast-cutting, chemically inert, thermally stable abrasive that can process substrates too hard or too demanding for conventional media.<\/p>\n\n        <div class=\"hlh-industry-grid\">\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83c\udfd7\ufe0f<\/span>\n            <div class=\"hlh-industry-name\">Structural Steel &#038; Construction<\/div>\n            <div class=\"hlh-industry-desc\">Surface prep for bridges, offshore platforms, storage tanks. Achieves Sa 2.5 \/ Sa 3 standards per ISO 8501.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\u2708\ufe0f<\/span>\n            <div class=\"hlh-industry-name\">Aerospace &#038; Defense<\/div>\n            <div class=\"hlh-industry-desc\">Turbine blade prep, composite surface conditioning, MIL-SPEC compliant cleaning of high-hardness alloys.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83d\udd2c<\/span>\n            <div class=\"hlh-industry-name\">Semiconductor Manufacturing<\/div>\n            <div class=\"hlh-industry-desc\">Wafer dicing, lapping of silicon and compound semiconductors, surface conditioning of SiC power devices.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83d\udd2d<\/span>\n            <div class=\"hlh-industry-name\">Optics &#038; Glass Processing<\/div>\n            <div class=\"hlh-industry-desc\">Precision etching of borosilicate and fused silica glass, decorative sandblasting, lens and mirror polishing.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83d\udea2<\/span>\n            <div class=\"hlh-industry-name\">Marine &#038; Shipbuilding<\/div>\n            <div class=\"hlh-industry-desc\">Hull prep for anti-corrosion coatings, underwater structure maintenance, propeller and shaft cleaning.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83c\udfed<\/span>\n            <div class=\"hlh-industry-name\">Ceramics &#038; Refractories<\/div>\n            <div class=\"hlh-industry-desc\">Surface cleaning of kiln furniture, cleaning of silicon carbide and alumina ceramics, deburring of precision components.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83d\ude97<\/span>\n            <div class=\"hlh-industry-name\">Automotive &#038; Transportation<\/div>\n            <div class=\"hlh-industry-desc\">Frame stripping, engine block prep, brake component cleaning, restoration of high-hardness alloy wheels.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\u26a1<\/span>\n            <div class=\"hlh-industry-name\">Power Electronics<\/div>\n            <div class=\"hlh-industry-desc\">Surface conditioning of SiC power MOSFETs, IGBT substrates, and heat sink surfaces for thermal interface optimization.<\/div>\n          <\/div>\n          <div class=\"hlh-industry-card\">\n            <span class=\"hlh-industry-icon\">\ud83e\udea8<\/span>\n            <div class=\"hlh-industry-name\">Stone &#038; Monument Carving<\/div>\n            <div class=\"hlh-industry-desc\">Precision etching of granite, marble, and sandstone for architectural, memorial, and decorative applications.<\/div>\n          <\/div>\n        <\/div>\n\n        <h3>Application Deep Dive: Glass Etching<\/h3>\n        <p>Among the precision applications for silicon carbide blasting media, glass etching stands out for its sensitivity to grit selection and blasting parameters. SiC&#8217;s sharp angular particles create a uniformly frosted or deeply carved surface on glass by micro-fracturing the surface layer \u2014 a mechanism fundamentally different from chemical etching. The depth and texture of the etch is controlled through grit size, nozzle pressure, stand-off distance, and dwell time. For detailed glass etching guidance, including recommended grit sizes and technique, see: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-blasting-media-for-glass-etching-grit-selection-technique\/\" target=\"_blank\" rel=\"noopener\">SiC Blasting for Glass Etching<\/a><\/p>\n\n        <h3>Application Deep Dive: Aerospace Surface Preparation<\/h3>\n        <p>Aerospace applications impose the most stringent requirements of any industry on abrasive blasting media. Substrates include titanium alloys (Ti-6Al-4V), nickel superalloys (Inconel, Hastelloy), carbon fiber reinforced polymers (CFRP), and advanced ceramics. Silicon carbide&#8217;s combination of high hardness, chemical purity, and thermal stability makes it one of the few abrasives approved for direct use on these substrates under aerospace quality management systems. For standards, specifications, and MIL-SPEC compliance requirements, see: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-abrasive-for-aerospace-surface-preparation-standards-specs\/\" target=\"_blank\" rel=\"noopener\">SiC for Aerospace Surface Prep: Standards &#038; Specs<\/a><\/p>\n\n        <h3>Application Deep Dive: Steel Rust Removal<\/h3>\n        <p>For heavy industrial rust removal and mill scale cleaning on carbon and alloy steels, silicon carbide&#8217;s hardness and angular shape enable it to achieve Sa 2.5 to Sa 3 cleanliness grades (per ISO 8501-1) faster than any other dry abrasive. Its chemical inertness also means no flash rusting from media residue \u2014 a common problem with metallic abrasives on wet or humid job sites. Explore the full process parameters for steel surface profiling: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-sandblasting-for-rust-removal-and-surface-profiling-on-steel\/\" target=\"_blank\" rel=\"noopener\">SiC Sandblasting for Rust Removal on Steel<\/a><\/p>\n\n        <h3>Application Deep Dive: Ceramics &#038; Composites<\/h3>\n        <p>Advanced ceramics and composite materials represent one of the fastest-growing application areas for SiC blasting media, driven by the expansion of electric vehicle battery systems, 5G infrastructure ceramics, and aerospace structural composites. Silicon carbide media is uniquely suited to these substrates because it can process them without embedding ferrous or reactive contamination \u2014 critical for surfaces that will subsequently receive precision coatings or be used in clean-room manufacturing environments. Learn more: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/using-silicon-carbide-blasting-media-for-ceramic-composite-surfaces\/\" target=\"_blank\" rel=\"noopener\">SiC Blasting for Ceramics &#038; Composites<\/a><\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 7 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"vs-ao\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 07<\/span>Silicon Carbide vs. Aluminum Oxide: Full Comparison<\/h2>\n\n        <p>The most common and commercially significant comparison in industrial abrasive blasting is between silicon carbide and aluminum oxide (Al\u2082O\u2083, also called corundum or alox). Both are synthetic mineral abrasives, both are available in a wide grit range, and both are recyclable \u2014 yet they differ substantially in hardness, cutting action, optimal substrate compatibility, and total cost profile. Understanding these differences is essential for making the correct procurement decision for any given blasting operation.<\/p>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>Comparison Factor<\/th>\n                <th>Silicon Carbide (SiC)<\/th>\n                <th>Aluminum Oxide (Al\u2082O\u2083)<\/th>\n                <th>Advantage<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>Hardness (Mohs)<\/strong><\/td>\n                <td>9.0 \u2013 9.5<\/td>\n                <td>8.0 \u2013 9.0<\/td>\n                <td><span class=\"hlh-badge hlh-badge-blue\">SiC<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Cutting Speed<\/strong><\/td>\n                <td>2\u20133\u00d7 faster<\/td>\n                <td>Baseline<\/td>\n                <td><span class=\"hlh-badge hlh-badge-blue\">SiC<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Surface Profile<\/strong><\/td>\n                <td>Rougher, more aggressive<\/td>\n                <td>Moderate, more controlled<\/td>\n                <td>Context-dependent<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>\u53ef\u56de\u6536\u6027<\/strong><\/td>\n                <td>3\u20135 cycles<\/td>\n                <td>5\u201310 cycles<\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Al\u2082O\u2083<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Best on Hard Substrates<\/strong><\/td>\n                <td>\u2713 Ceramics, glass, stone<\/td>\n                <td>Less effective<\/td>\n                <td><span class=\"hlh-badge hlh-badge-blue\">SiC<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Best on Steel \/ Metals<\/strong><\/td>\n                <td>Good<\/td>\n                <td>\u2713 More cost-effective<\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Al\u2082O\u2083<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Safe on Soft Metals (Al, Cu)<\/strong><\/td>\n                <td>\u274c Too aggressive<\/td>\n                <td>\u2713 Feasible with care<\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Al\u2082O\u2083<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Material Cost per Ton<\/strong><\/td>\n                <td>Higher<\/td>\n                <td>Lower<\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">Al\u2082O\u2083<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Cost per Hour of Blasting<\/strong><\/td>\n                <td>Lower (faster cycle)<\/td>\n                <td>Higher (slower cycle)<\/td>\n                <td><span class=\"hlh-badge hlh-badge-blue\">SiC<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Chemical Inertness<\/strong><\/td>\n                <td>Excellent<\/td>\n                <td>Very Good<\/td>\n                <td><span class=\"hlh-badge hlh-badge-blue\">SiC<\/span><\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Thermal Stability<\/strong><\/td>\n                <td>Up to 1600\u00b0C<\/td>\n                <td>Up to 1000\u00b0C<\/td>\n                <td><span class=\"hlh-badge hlh-badge-blue\">SiC<\/span><\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <div class=\"hlh-highlight\">\n          <p><strong>Rule of thumb:<\/strong> Choose silicon carbide when the substrate is harder than Mohs 7, when blasting cycle time is a critical cost driver, or when the application demands high purity and chemical inertness. Choose aluminum oxide when the substrate is steel or soft metal, when higher recyclability is a priority, or when a more controlled (less aggressive) surface profile is required.<\/p>\n        <\/div>\n\n        <p>For a complete deep-dive comparison with application-specific decision trees: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-vs-aluminum-oxide-blasting-media-full-comparison-2025\/\" target=\"_blank\" rel=\"noopener\">SiC vs. Aluminum Oxide: Full 2026 Comparison<\/a><\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 8 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"vs-other\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 08<\/span>Silicon Carbide vs. Other Blast Media<\/h2>\n\n        <p>While the SiC vs. aluminum oxide comparison is the most common, procurement teams often need to evaluate silicon carbide against a broader set of alternatives, particularly when projects involve specific surface finish requirements, environmental disposal constraints, or substrate sensitivities.<\/p>\n\n        <h3>Silicon Carbide vs. Garnet<\/h3>\n        <p>Garnet is a natural mineral abrasive with moderate hardness (Mohs 6.5\u20137.5) that is widely used for waterjet cutting and general-purpose blasting. It is significantly softer than SiC, resulting in slower material removal on hard substrates and a shallower surface profile. Garnet&#8217;s key advantages are its lower price point and its natural origin (important for some environmental certifications). However, for substrates harder than Mohs 7, garnet becomes rapidly ineffective and the cost advantage disappears due to much higher media consumption per unit area blasted. For detailed scenarios and cost modeling comparing these two media: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-vs-garnet-blasting-media-which-is-better-for-metal-prep\/\" target=\"_blank\" rel=\"noopener\">SiC vs. Garnet: Which Is Better for Metal Prep?<\/a><\/p>\n\n        <h3>Silicon Carbide vs. Glass Bead<\/h3>\n        <p>Glass bead is a spherical abrasive used primarily for surface peening, cosmetic finishing, and light cleaning where surface finish smoothness is the priority. Its round morphology means it compresses rather than cuts the surface \u2014 the exact opposite of SiC&#8217;s cutting action. Glass bead is appropriate for stainless steel finishing, aluminum deburring, and creating matte satin finishes. It is categorically unsuitable for aggressive rust removal, deep surface profiling, or blasting of substrates harder than Mohs 6. SiC and glass bead therefore serve almost entirely different application profiles and are rarely direct substitutes for one another. Compare them in context: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-vs-glass-bead-blasting-aggressive-cut-vs-smooth-finish\/\" target=\"_blank\" rel=\"noopener\">SiC vs. Glass Bead: Cut vs. Finish<\/a><\/p>\n\n        <h3>Silicon Carbide vs. Steel Shot \/ Steel Grit<\/h3>\n        <p>Metallic abrasives \u2014 steel shot (spherical) and steel grit (angular) \u2014 are the workhorse media for high-volume blasting of carbon steel in controlled environments. Their extreme recyclability (100+ cycles) makes them cost-effective in automated wheelabrator and barrel blasting systems. However, steel media introduces iron contamination on blasted surfaces, corrodes rapidly in humid environments, and cannot be used on non-ferrous metals, composites, or ceramics without causing contamination or damage. In environments where cleanliness, purity, or substrate compatibility is critical, silicon carbide is the superior alternative despite its higher media cost per ton.<\/p>\n\n        <h3>When NOT to Choose Silicon Carbide<\/h3>\n        <p>Understanding the limitations of SiC is as important as understanding its strengths. Our dedicated guide covers the five most common situations where silicon carbide is the wrong choice and recommends appropriate alternatives: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/when-not-to-use-silicon-carbide-blasting-media-5-situations-to-avoid\/\" target=\"_blank\" rel=\"noopener\">When NOT to Use SiC Blasting Media<\/a><\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 9 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"how-to-choose\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 09<\/span>How to Choose the Right Silicon Carbide Grade<\/h2>\n\n        <p>Specifying the correct silicon carbide blasting media grade requires answering four fundamental questions about the application. Work through the following decision framework before placing a procurement order or submitting a request for quote.<\/p>\n\n        <h3>Step 1: Identify Your Substrate<\/h3>\n        <p>The substrate material determines the hardness, fragility, and contamination sensitivity requirements of the abrasive. Map your substrate to one of the following categories:<\/p>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>Substrate Type<\/th>\n                <th>Hardness Range<\/th>\n                <th>Recommended SiC Type<\/th>\n                <th>Grit Range<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>Carbon \/ Alloy Steel<\/strong><\/td>\n                <td>Mohs 7\u20138<\/td>\n                <td>Black SiC<\/td>\n                <td>#24\u201380<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Stainless Steel \/ Titanium<\/strong><\/td>\n                <td>Mohs 7\u20138.5<\/td>\n                <td>Black or Green SiC<\/td>\n                <td>#60\u2013120<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Ceramics \/ Alumina<\/strong><\/td>\n                <td>Mohs 8\u20139<\/td>\n                <td>Green SiC preferred<\/td>\n                <td>#80\u2013220<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Glass \/ Borosilicate<\/strong><\/td>\n                <td>Mohs 6\u20137<\/td>\n                <td>Black SiC<\/td>\n                <td>#80\u2013240<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Stone \/ Granite<\/strong><\/td>\n                <td>Mohs 6\u20138<\/td>\n                <td>Black SiC<\/td>\n                <td>#24\u2013100<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Silicon Wafers \/ Compound Semiconductors<\/strong><\/td>\n                <td>Mohs 7\u20139.5<\/td>\n                <td>Green SiC (high purity)<\/td>\n                <td>#320\u20131200<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>CFRP \/ Fiberglass Composites<\/strong><\/td>\n                <td>Variable<\/td>\n                <td>Black or Green SiC<\/td>\n                <td>#120\u2013320<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Concrete \/ Masonry<\/strong><\/td>\n                <td>Mohs 6\u20137<\/td>\n                <td>Black SiC<\/td>\n                <td>#16\u201336<\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <div class=\"hlh-note\">\n          <span class=\"hlh-note-icon\">\u26a0\ufe0f<\/span>\n          <p><strong>Soft metal warning:<\/strong> Do not use silicon carbide on aluminum, copper, brass, or zinc substrates unless specifically required. SiC&#8217;s high hardness and angular shape will embed particles in these soft metal surfaces, causing contamination and surface damage. Use glass bead or plastic media for soft non-ferrous metals.<\/p>\n        <\/div>\n\n        <h3>Step 2: Define the Required Surface Profile<\/h3>\n        <p>Determine the target Ra (roughness average) or Rz (mean roughness depth) value specified by your coating system manufacturer, quality standard, or engineering drawing. Work backward from this requirement to select the appropriate grit size using the grit-to-profile correlation table in Section 5 above.<\/p>\n\n        <h3>Step 3: Assess Recycling Requirements<\/h3>\n        <p>If your operation uses a recovery and recycling system (blast cabinet, sweep blast recovery, cyclone separator), consider how many reuse cycles are acceptable before the grit is replaced. Higher-purity green SiC maintains its sharp edges for slightly more reuse cycles than standard black SiC due to its more perfect crystal structure. For a full economic analysis of SiC recyclability: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/is-silicon-carbide-blasting-media-recyclable-reuse-cycles-cost-analysis\/\" target=\"_blank\" rel=\"noopener\">SiC Recyclability &#038; Cost Analysis<\/a><\/p>\n\n        <h3>Step 4: Confirm Applicable Standards<\/h3>\n        <p>Many industries impose mandatory abrasive media standards. Confirm whether your application falls under any of the following:<\/p>\n        <ul style=\"margin:14px 0 14px 20px; color: var(--c-steel); font-size:15px; line-height:1.9;\">\n          <li>ISO 11124 \/ ISO 11126 \u2014 Specifications for metallic and non-metallic blast cleaning abrasives<\/li>\n          <li>SSPC-AB 1 \u2014 Mineral and Slag Abrasives<\/li>\n          <li>MIL-A-22262 \u2014 Military specification for abrasive blast cleaning media<\/li>\n          <li>FEPA Standard 42-1:2006 \u2014 Grain sizes of abrasives<\/li>\n          <li>ANSI B74.12 \/ B74.18 \u2014 American National Standards for abrasive grains<\/li>\n          <li>JIS R6001 \u2014 Japanese Industrial Standard for abrasive grains<\/li>\n        <\/ul>\n        <p>Jiangsu Henglihong Technology Co., Ltd. supplies silicon carbide blasting media conforming to FEPA, ANSI, and JIS sizing standards, with full chemical composition certificates (SiC content, Fe\u2082O\u2083, free carbon, free SiO\u2082) available on request for every production lot.<\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 10 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"recyclability\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 10<\/span>Recyclability &#038; Total Cost of Ownership<\/h2>\n\n        <p>One of the most common misconceptions about silicon carbide blasting media is that its higher unit cost per ton makes it inherently more expensive than alternatives. When viewed through the lens of total cost of ownership (TCO) \u2014 which accounts for blasting speed, media consumption rate, labor time, and recycling efficiency \u2014 SiC frequently proves more cost-effective than lower-priced abrasives for the right applications.<\/p>\n\n        <h3>Factors That Determine Recyclability<\/h3>\n        <p>Silicon carbide is a medium-recyclability abrasive. Its angular particles fracture on impact \u2014 a phenomenon called friability \u2014 creating smaller particle fragments and fines. This friable behavior is actually responsible for SiC&#8217;s aggressive cutting action (each fracture exposes a fresh sharp edge), but it does reduce the number of effective reuse cycles. Under typical blasting cabinet conditions, silicon carbide can be effectively recycled 3\u20135 times with a media classifier before the particle size distribution shifts too far toward fines to maintain blasting efficiency.<\/p>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>Cost Factor<\/th>\n                <th>\u78b3\u5316\u7845<\/th>\n                <th>\u6c27\u5316\u94dd<\/th>\n                <th>\u77f3\u69b4\u77f3<\/th>\n                <th>\u94a2\u7802<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>Media Cost ($\/ton)<\/strong><\/td>\n                <td>$$$ Higher<\/td>\n                <td>$$ Medium<\/td>\n                <td>$ Lower<\/td>\n                <td>$ Lowest<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Reuse Cycles<\/strong><\/td>\n                <td>3\u20135<\/td>\n                <td>5\u201310<\/td>\n                <td>2\u20134<\/td>\n                <td>100+<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Effective Cost per Cycle<\/strong><\/td>\n                <td>Medium<\/td>\n                <td>Medium-Low<\/td>\n                <td>Medium<\/td>\n                <td>Very Low<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Blasting Speed (relative)<\/strong><\/td>\n                <td><span class=\"hlh-badge hlh-badge-green\">200\u2013300%<\/span><\/td>\n                <td><span class=\"hlh-badge hlh-badge-orange\">100% (baseline)<\/span><\/td>\n                <td>70\u201380%<\/td>\n                <td>80\u2013100%<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Labor Cost per m\u00b2 Blasted<\/strong><\/td>\n                <td><span class=\"hlh-badge hlh-badge-green\">Lowest<\/span><\/td>\n                <td>Medium<\/td>\n                <td>Medium-High<\/td>\n                <td>Low-Medium<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Disposal Cost<\/strong><\/td>\n                <td>Low (chemically inert)<\/td>\n                <td>Low<\/td>\n                <td>Very Low<\/td>\n                <td>Medium (may rust)<\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <div class=\"hlh-highlight\">\n          <p><strong>TCO insight:<\/strong> On a project blasting hardened steel components at scale, the 2\u20133\u00d7 speed advantage of silicon carbide translates directly into 50\u201365% reduction in labor hours per unit area. When labor represents 60\u201370% of total blasting cost (the industry average for contracted surface preparation), SiC&#8217;s higher media cost is often fully offset by labor savings within the first 200 m\u00b2 of blasted surface area.<\/p>\n        <\/div>\n\n        <p>For a full economic model with downloadable calculation templates, including break-even analysis comparing SiC to aluminum oxide on different project scales: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/is-silicon-carbide-blasting-media-recyclable-reuse-cycles-cost-analysis\/\" target=\"_blank\" rel=\"noopener\">SiC Reuse Cycles &#038; Cost Analysis \u2192<\/a><\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 11 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"blasting-process\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 11<\/span>Blasting Process Overview<\/h2>\n\n        <p>Effective use of silicon carbide abrasive blasting media requires proper setup and parameter control across the blasting system. The following overview covers the essential process variables for both direct pressure and suction (siphon) blast systems.<\/p>\n\n        <h3>Direct Pressure vs. Suction Blasting<\/h3>\n        <p>Silicon carbide blasting media can be used in both direct pressure and suction blast systems. Direct pressure systems deliver media to the nozzle at full pot pressure (typically 4\u20138 bar \/ 60\u2013120 PSI), producing significantly higher impact velocity and faster material removal rates. Suction systems draw media from a hopper using venturi action and are slower but cheaper to operate. For heavy-duty industrial surface preparation where production rate is critical, direct pressure systems maximize SiC&#8217;s inherent speed advantage. For precision etching applications (glass, ceramics), suction systems offer finer control over media flow rate.<\/p>\n\n        <h3>Key Process Parameters<\/h3>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>\u53c2\u6570<\/th>\n                <th>\u5efa\u8bae\u8303\u56f4<\/th>\n                <th>Effect on Surface<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>Air Pressure (PSI)<\/strong><\/td>\n                <td>40\u2013100 PSI (2.8\u20136.9 bar)<\/td>\n                <td>Higher pressure \u2192 deeper profile, faster cycle<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Nozzle Standoff Distance<\/strong><\/td>\n                <td>150\u2013400 mm (6\u201316 in)<\/td>\n                <td>Closer \u2192 more aggressive; farther \u2192 softer impact<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>\u7206\u7834\u89d2\u5ea6<\/strong><\/td>\n                <td>45\u00b0\u201390\u00b0 to surface<\/td>\n                <td>90\u00b0 \u2192 maximum cutting; 45\u00b0 \u2192 reduced profile, less embedding<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Nozzle Diameter (Venturi)<\/strong><\/td>\n                <td>6\u201314 mm bore<\/td>\n                <td>Larger nozzle \u2192 higher production rate, more media flow<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Media Flow Rate<\/strong><\/td>\n                <td>Application-dependent<\/td>\n                <td>Consistent flow essential for uniform profile<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Air Dryness<\/strong><\/td>\n                <td>Dew point < \u201340\u00b0C at nozzle<\/td>\n                <td>Moisture causes media clumping and surface flash rusting<\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <div class=\"hlh-note\">\n          <span class=\"hlh-note-icon\">\ud83d\udca1<\/span>\n          <p><strong>Pro tip on nozzle wear:<\/strong> Silicon carbide&#8217;s extreme hardness (Mohs 9.5) means it is also highly abrasive to blast nozzles. For sustained SiC blasting operations, use tungsten carbide or boron carbide nozzle liners \u2014 do not use cheap ceramic or hardened steel nozzles, which will wear out within hours. Tungsten carbide nozzles provide 300\u2013500 hours of service life with SiC media, while boron carbide (Mohs ~9.5) offers 750\u20131,500 hours and is the preferred choice for high-volume production environments.<\/p>\n        <\/div>\n\n        <h3>Media Recovery and Recycling<\/h3>\n        <p>To maximize silicon carbide reuse cycles, a media recovery system with mechanical classification is strongly recommended. A vibrating screen or cyclone separator removes oversized aggregate and fine dust from recovered media, retaining the productive mid-range particle size fraction for immediate reuse. Top up with 15\u201320% fresh SiC by weight per cycle to maintain consistent grit distribution and cutting performance.<\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 12 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"safety\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 12<\/span>Safety &#038; Handling Requirements<\/h2>\n\n        <p>Silicon carbide abrasive blasting media, while significantly safer than silica sand (it does not cause silicosis at standard exposure levels), still demands strict adherence to occupational health and safety protocols during use, storage, and disposal. The following guidelines apply to all commercial blasting operations using SiC media.<\/p>\n\n        <div class=\"hlh-note\">\n          <span class=\"hlh-note-icon\">\u26a0\ufe0f<\/span>\n          <p><strong>Regulatory note:<\/strong> While silicon carbide itself is not classified as a respirable crystalline silica hazard, the blasting operation generates fine dust from both the SiC media breakdown and the substrate being blasted. Dust from blasting painted surfaces (especially lead-based paints), rust, or hazardous coatings must be assessed independently for applicable occupational exposure limits and disposal regulations under local and national regulations (OSHA, EPA, HSE, etc.).<\/p>\n        <\/div>\n\n        <div class=\"hlh-safety-grid\">\n          <div class=\"hlh-safety-item\">\n            <span>\ud83d\ude37<\/span>\n            <div>Use NIOSH-approved air-purifying respirator (minimum APF 50) or supplied-air respirator for all blasting operations. Half-face P100 respirators are the minimum for enclosed blast room work.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\ud83d\udc41\ufe0f<\/span>\n            <div>Wear blast hood or full-face shield with appropriate lens shade. Flying SiC particles can cause severe eye injury at blasting pressures. Never use open-face goggles alone.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\ud83e\udde4<\/span>\n            <div>Heavy leather or rubber-coated gloves are required when handling blast nozzles and in proximity to the blast stream. SiC particles can penetrate thin glove materials at operating pressures.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\ud83d\udc54<\/span>\n            <div>Wear blast-rated protective coverall or leather apron. At high pressures, abrasive blast streams can cause serious laceration injuries on exposed skin within 1 meter of the nozzle.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\ud83d\udd0a<\/span>\n            <div>Blasting operations exceed 85 dB(A) at the operator position. Hearing protection (earmuffs or plugs rated to NRR 25 or higher) is mandatory for all personnel in the blast area.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\ud83c\udfed<\/span>\n            <div>Ensure adequate ventilation and dust collection in enclosed blast rooms. Local exhaust ventilation (LEV) systems must maintain dust levels below applicable occupational exposure limits throughout the work shift.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\ud83d\udce6<\/span>\n            <div>Store SiC media in sealed, moisture-resistant containers away from direct water exposure. Wet SiC media can bridge in hoppers and cause blasting system blockages. Do not store in paper bags on wet or unsealed concrete floors.<\/div>\n          <\/div>\n          <div class=\"hlh-safety-item\">\n            <span>\u267b\ufe0f<\/span>\n            <div>Spent SiC blast media (without hazardous substrate contamination) is generally classified as non-hazardous inert waste. However, if blasting surfaces with lead paint, heavy metals, or other hazardous coatings, spent media must be characterized and disposed of in accordance with applicable hazardous waste regulations.<\/div>\n          <\/div>\n        <\/div>\n\n        <p>Silicon carbide blasting media hardness also poses equipment wear considerations. <strong>Never use SiC media in blasting equipment rated only for soft media<\/strong> (plastic bead, baking soda, glass bead systems). SiC will rapidly destroy the nozzle, media valve, pot liner, and blast hose in under-specified equipment. Always confirm equipment compatibility with the media manufacturer or equipment supplier before first use.<\/p>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 13 \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"sourcing\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 13<\/span>Sourcing &#038; Procurement Guide<\/h2>\n\n        <p>For international buyers \u2014 particularly those sourcing silicon carbide blasting media from China \u2014 the procurement process involves more considerations than a domestic purchase from a regional distributor. Quality consistency, purity certification, logistics planning, and minimum order quantities all require careful evaluation before committing to a supplier relationship.<\/p>\n\n        <h3>Why China Is the Dominant Source<\/h3>\n        <p>China&#8217;s dominance in global silicon carbide production is structural rather than merely price-driven. The country possesses the world&#8217;s largest proven reserves of high-purity silica sand and petroleum coke \u2014 the two primary raw materials for SiC synthesis \u2014 concentrated in regions with low-cost electricity essential for the energy-intensive Acheson process furnaces. This combination of raw material availability, energy infrastructure, and accumulated manufacturing expertise gives Chinese SiC producers a fundamental cost and scale advantage over competing production centers in Europe, North America, or Southeast Asia.<\/p>\n\n        <h3>Key Specifications to Verify Before Ordering<\/h3>\n\n        <div class=\"hlh-table-wrap\">\n          <table class=\"hlh-table\">\n            <thead>\n              <tr>\n                <th>Specification<\/th>\n                <th>What to Verify<\/th>\n                <th>Typical Value (Black SiC)<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n              <tr>\n                <td><strong>SiC Content (%)<\/strong><\/td>\n                <td>Chemical analysis certificate<\/td>\n                <td>\u2265 97.0%<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Free SiO\u2082 (%)<\/strong><\/td>\n                <td>XRF or wet chemistry report<\/td>\n                <td>\u2264 0.3%<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Fe\u2082O\u2083 (%)<\/strong><\/td>\n                <td>Chemical analysis certificate<\/td>\n                <td>\u2264 0.3%<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Free Carbon (%)<\/strong><\/td>\n                <td>Combustion analysis<\/td>\n                <td>\u2264 0.3%<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>\u6c34\u5206\u542b\u91cf<\/strong><\/td>\n                <td>Loss on drying at 110\u00b0C<\/td>\n                <td>\u2264 0.5%<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Grit Size Distribution<\/strong><\/td>\n                <td>Sieve analysis report (D10, D50, D90)<\/td>\n                <td>Per FEPA \/ ANSI \/ JIS<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Bulk Density (g\/cm\u00b3)<\/strong><\/td>\n                <td>Physical test report<\/td>\n                <td>1.20 \u2013 1.60<\/td>\n              <\/tr>\n              <tr>\n                <td><strong>Magnetic Content<\/strong><\/td>\n                <td>Davis tube or magnetic separation test<\/td>\n                <td>\u2264 0.1%<\/td>\n              <\/tr>\n            <\/tbody>\n          <\/table>\n        <\/div>\n\n        <h3>Minimum Order Quantities and Packaging<\/h3>\n        <p>Typical MOQs from Chinese SiC manufacturers for export orders range from 1 metric ton (for small buyers purchasing bag goods) to 20\u201325 metric tons per container load (for buyers sourcing in bulk super sacks or loose container loads). Jiangsu Henglihong Technology Co., Ltd. accommodates both small trial orders and full container shipments, with packaging options including:<\/p>\n        <ul style=\"margin:14px 0 14px 20px; color:var(--c-steel); font-size:15px; line-height:1.9;\">\n          <li>25 kg multi-layer paper bags (moisture-resistant inner liner)<\/li>\n          <li>50 kg double-seam woven polypropylene bags<\/li>\n          <li>500 kg or 1,000 kg flexible intermediate bulk containers (FIBCs \/ super sacks)<\/li>\n          <li>Bulk container (loose load) for very large volume orders<\/li>\n        <\/ul>\n\n        <h3>Logistics and Lead Times<\/h3>\n        <p>Standard ocean freight lead times from Jiangsu \/ Shanghai ports to major destination ports are typically 15\u201322 days to Europe (Rotterdam, Hamburg, Antwerp), 18\u201328 days to the US East Coast (New York, Savannah), 12\u201318 days to the US West Coast (Los Angeles, Long Beach), and 8\u201314 days to Southeast Asian ports. Air freight is available for urgent trial sample shipments (typically 2\u20135 kg samples for quality evaluation) at cost.<\/p>\n\n        <p>For a comprehensive sourcing checklist, supplier evaluation framework, and detailed guidance on purchasing silicon carbide blasting media from China, read our procurement guide: <a class=\"hlh-link-pill\" href=\"https:\/\/hlh-js.com\/resource\/blog\/how-to-buy-silicon-carbide-blasting-media-from-china-moq-specs-supplier-checklist\/\" target=\"_blank\" rel=\"noopener\">How to Buy SiC Blasting Media from China \u2192<\/a><\/p>\n\n        <h3>Why Work With Henglihong?<\/h3>\n        <p>Jiangsu Henglihong Technology Co., Ltd. has specialized in abrasive media manufacturing and export for industrial buyers worldwide. Our competitive advantages for international procurement include factory-direct pricing without intermediary markups, full batch-level chemical and physical QC documentation, flexible packaging and labeling to buyer requirements, multi-grit inventory for one-stop consolidated shipment, and dedicated export operations with experience in LC, TT, and other payment structures preferred by international buyers.<\/p>\n\n        <div style=\"text-align:center; margin-top:30px;\">\n          <a class=\"hlh-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block; font-size:15px; font-weight:700; padding:15px 40px;\">Request a Quote or Free Sample \u2192<\/a>\n        <\/div>\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 14 \u2014 FAQ \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"faq\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 14<\/span>Frequently Asked Questions<\/h2>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">What is the hardness of silicon carbide blasting media?<\/div>\n          <div class=\"hlh-faq-a\"><p>Silicon carbide abrasive blasting media has a Mohs hardness of 9.0 to 9.5, making it the hardest commercially available blasting abrasive. For comparison, diamond rates 10, aluminum oxide rates 8.0\u20139.0, and garnet rates 6.5\u20137.5 on the Mohs scale. This near-diamond hardness is what enables SiC to blast substrates that would rapidly consume softer abrasives.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">Can silicon carbide blasting media be reused?<\/div>\n          <div class=\"hlh-faq-a\"><p>Yes, silicon carbide is a partially recyclable abrasive. Under typical enclosed blasting cabinet conditions with media recovery and classification, SiC can typically be reused 3\u20135 times before the particle size distribution degrades below acceptable limits. Each use cycle produces some fines through friable fracture; these must be removed by the classifier before reuse. Adding 15\u201320% fresh media per cycle helps maintain consistent grit performance.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">What grit size should I use for glass etching with silicon carbide?<\/div>\n          <div class=\"hlh-faq-a\"><p>For glass etching, grit size selection depends on the desired finish depth and texture. For bold, deep etching (stage carving, 3D relief): use #80\u2013120 grit. For standard frosted etching (signage, decorative panels): use #120\u2013180 grit. For fine detail work or subtle satin frost effects: use #220\u2013320 grit. Lower grit numbers produce coarser, deeper etching; higher numbers produce finer, shallower textures. Always start with lower air pressure (40\u201360 PSI) and increase incrementally for glass etching.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">Is silicon carbide blasting media silica-free?<\/div>\n          <div class=\"hlh-faq-a\"><p>Yes. Silicon carbide (SiC) is a chemically distinct compound from silicon dioxide (SiO\u2082, crystalline silica). SiC does not contain free crystalline silica \u2014 the agent responsible for silicosis. However, quality control is important: reputable SiC manufacturers specify and certify free SiO\u2082 content (typically \u2264 0.3% for blasting grade). Always request a chemical composition certificate from your supplier to confirm free SiO\u2082 levels, particularly for applications subject to occupational health regulation.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">What is the difference between FEPA, ANSI, and JIS grit standards?<\/div>\n          <div class=\"hlh-faq-a\"><p>All three are particle size classification standards for abrasive grains, but they use different sieve sequences and sizing conventions. FEPA (European standard, now also adopted in China and most of Asia for export products) and ANSI (North American standard) are broadly similar for macro grits (P12\u2013P220) but diverge significantly in micro grit ranges. JIS standards (Japan) use different median particle size targets. When ordering from a Chinese manufacturer for North American use, specify ANSI standards explicitly; for European use, specify FEPA. Henglihong can supply to all three standards \u2014 specify your requirement at time of order.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">What PSI should I use for silicon carbide blasting?<\/div>\n          <div class=\"hlh-faq-a\"><p>Operating pressure depends on the substrate and application. For heavy industrial descaling and rust removal on steel: 60\u2013100 PSI (4.1\u20136.9 bar). For general surface preparation and paint stripping: 50\u201380 PSI (3.4\u20135.5 bar). For glass etching and precision work: 30\u201360 PSI (2.1\u20134.1 bar). Always start at the lower end of the recommended pressure range and increase only as needed. Higher pressures accelerate media consumption and nozzle wear while increasing dust generation and operator fatigue.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">Can I use silicon carbide blasting media on aluminum?<\/div>\n          <div class=\"hlh-faq-a\"><p>Silicon carbide is generally not recommended for blasting aluminum. SiC&#8217;s high hardness (Mohs 9.5) and angular shape are too aggressive for soft aluminum substrates (Mohs ~2.5\u20133.0), causing excessive material removal, surface waviness, and SiC particle embedding in the aluminum surface \u2014 a form of contamination that can cause adhesion problems with subsequent coatings and create galvanic corrosion risk. For aluminum surface preparation, use glass bead (shot peening \/ satin finish), aluminum oxide at low pressure, or plastic blast media instead.<\/p><\/div>\n        <\/div>\n\n        <div class=\"hlh-faq-item\">\n          <div class=\"hlh-faq-q\">What is the minimum order quantity (MOQ) for silicon carbide blasting media from China?<\/div>\n          <div class=\"hlh-faq-a\"><p>MOQ varies by supplier and packaging type. At Jiangsu Henglihong Technology Co., Ltd., trial sample orders (for quality evaluation) can be arranged in small quantities. Commercial production orders typically start from 1 metric ton for bagged goods. Full container load orders (20-foot FCL: approximately 18\u201320 MT; 40-foot FCL: approximately 22\u201325 MT in bags) offer the most competitive unit pricing. Contact our team directly for current pricing and MOQ confirmation for your specific grit size and grade.<\/p><\/div>\n        <\/div>\n\n      <\/div>\n\n      <hr class=\"hlh-divider\">\n\n      <!-- \u2550\u2550 SECTION 15 \u2014 RELATED TOPICS \u2550\u2550 -->\n      <div class=\"hlh-section\">\n        <span class=\"hlh-section-anchor\" id=\"related-topics\"><\/span>\n        <h2><span class=\"hlh-h2-num\">SECTION 15<\/span>Related Topics &#038; In-Depth Guides<\/h2>\n\n        <p>This pillar guide provides a comprehensive overview of silicon carbide abrasive blasting media. For deeper coverage of specific topics, each cluster article below explores a particular aspect of the subject in greater technical detail, with specific grit recommendations, case studies, and application parameters.<\/p>\n\n        <h3>Product &#038; Properties<\/h3>\n        <div class=\"hlh-cluster-grid\">\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/black-silicon-carbide-vs-green-silicon-carbide-whats-the-difference\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">\u4ea7\u54c1<\/span>\n            <div class=\"hlh-cluster-title\">Black Silicon Carbide vs. Green Silicon Carbide: What&#8217;s the Difference?<\/div>\n            <div class=\"hlh-cluster-desc\">Purity grades, crystallographic differences, and application matching guide for BSiC and GSiC.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-hardness-why-mohs-9-5-makes-it-the-hardest-blasting-media\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Properties<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide Hardness: Why Mohs 9.5 Makes It the Hardest Blasting Media<\/div>\n            <div class=\"hlh-cluster-desc\">How SiC hardness compares to all major abrasives and how it translates to real-world cutting performance.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-grit-size-chart-how-to-choose-the-right-mesh-for-blasting\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Selection<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide Grit Size Chart: How to Choose the Right Mesh for Blasting<\/div>\n            <div class=\"hlh-cluster-desc\">Complete grit reference with FEPA\/ANSI\/JIS cross-reference, Ra values, and application matching.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/is-silicon-carbide-blasting-media-recyclable-reuse-cycles-cost-analysis\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Economics<\/span>\n            <div class=\"hlh-cluster-title\">Is Silicon Carbide Blasting Media Recyclable? Reuse Cycles &#038; Cost Analysis<\/div>\n            <div class=\"hlh-cluster-desc\">Reuse cycle data, media classifier setup, and total cost of ownership models for SiC blasting operations.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n        <\/div>\n\n        <h3 style=\"margin-top:32px;\">Comparison Guides<\/h3>\n        <div class=\"hlh-cluster-grid\">\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-vs-aluminum-oxide-blasting-media-full-comparison-2025\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Comparison<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide vs. Aluminum Oxide Blasting Media: Full Comparison (2026)<\/div>\n            <div class=\"hlh-cluster-desc\">The definitive side-by-side comparison for the two most common synthetic mineral abrasives, with decision trees.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-vs-garnet-blasting-media-which-is-better-for-metal-prep\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Comparison<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide vs. Garnet Blasting Media: Which Is Better for Metal Prep?<\/div>\n            <div class=\"hlh-cluster-desc\">Cost, surface profile, and suitability comparison for metal surface preparation contractors.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-vs-glass-bead-blasting-aggressive-cut-vs-smooth-finish\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Comparison<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide vs. Glass Bead Blasting: Aggressive Cut vs. Smooth Finish<\/div>\n            <div class=\"hlh-cluster-desc\">Understanding when angular SiC is right versus when spherical glass bead delivers a better result.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/when-not-to-use-silicon-carbide-blasting-media-5-situations-to-avoid\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Limitations<\/span>\n            <div class=\"hlh-cluster-title\">When NOT to Use Silicon Carbide Blasting Media (5 Situations to Avoid)<\/div>\n            <div class=\"hlh-cluster-desc\">Honest guide to SiC limitations \u2014 substrates, situations, and scenarios where alternative media performs better.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n        <\/div>\n\n        <h3 style=\"margin-top:32px;\">Application Guides<\/h3>\n        <div class=\"hlh-cluster-grid\">\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-blasting-media-for-glass-etching-grit-selection-technique\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Application<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide Blasting Media for Glass Etching: Grit Selection &#038; Technique<\/div>\n            <div class=\"hlh-cluster-desc\">Step-by-step technique guide for decorative and precision glass etching with SiC abrasives.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-abrasive-for-aerospace-surface-preparation-standards-specs\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Application<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide Abrasive for Aerospace Surface Preparation: Standards &#038; Specs<\/div>\n            <div class=\"hlh-cluster-desc\">MIL-SPEC compliance, NADCAP requirements, and recommended grades for aerospace blasting applications.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/using-silicon-carbide-blasting-media-for-ceramic-composite-surfaces\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Application<\/span>\n            <div class=\"hlh-cluster-title\">Using Silicon Carbide Blasting Media for Ceramic &#038; Composite Surfaces<\/div>\n            <div class=\"hlh-cluster-desc\">SiC blasting parameters for advanced ceramics, CFRP, and semiconductor substrates in precision manufacturing.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-sandblasting-for-rust-removal-and-surface-profiling-on-steel\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Application<\/span>\n            <div class=\"hlh-cluster-title\">Silicon Carbide Sandblasting for Rust Removal &#038; Surface Profiling on Steel<\/div>\n            <div class=\"hlh-cluster-desc\">ISO 8501 cleanliness grades, pressure settings, and production rates for structural steel and heavy equipment.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n        <\/div>\n\n        <h3 style=\"margin-top:32px;\">Procurement<\/h3>\n        <div class=\"hlh-cluster-grid\">\n          <a class=\"hlh-cluster-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/how-to-buy-silicon-carbide-blasting-media-from-china-moq-specs-supplier-checklist\/\" target=\"_blank\" rel=\"noopener\">\n            <span class=\"hlh-cluster-tag\">Procurement<\/span>\n            <div class=\"hlh-cluster-title\">How to Buy Silicon Carbide Blasting Media from China: MOQ, Specs &#038; Supplier Checklist<\/div>\n            <div class=\"hlh-cluster-desc\">Complete buyer&#8217;s framework for sourcing SiC from Chinese manufacturers \u2014 specs, certifications, logistics, and red flags.<\/div>\n            <div class=\"hlh-cluster-arrow\">Read article \u2192<\/div>\n          <\/a>\n        <\/div>\n      <\/div>\n\n      <!-- \u2550\u2550 CTA \u2550\u2550 -->\n      <div class=\"hlh-cta-section\">\n        <h2>Ready to Source Silicon Carbide Blasting Media?<\/h2>\n        <p>Get factory-direct pricing, full chemical certification, and flexible packaging from Jiangsu Henglihong Technology Co., Ltd. \u2014 an experienced SiC abrasive manufacturer serving industrial buyers worldwide.<\/p>\n        <a class=\"hlh-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Contact Us for a Quote \u2192<\/a>\n        <div class=\"hlh-cta-sub\">Free samples available for quality evaluation \u00b7 FEPA \/ ANSI \/ JIS standards \u00b7 Full QC documentation<\/div>\n      <\/div>\n\n      <!-- \u2550\u2550 AUTHOR \u2550\u2550 -->\n      <div class=\"hlh-author\">\n        <div class=\"hlh-author-avatar\">\u2699\ufe0f<\/div>\n        <div>\n          <div class=\"hlh-author-name\">Henglihong Technical Content Team<\/div>\n          <div class=\"hlh-author-bio\">Published by Jiangsu Henglihong Technology Co., Ltd. \u2014 abrasive blasting media manufacturer and exporter. Content reviewed by production engineers with direct manufacturing and application expertise in silicon carbide abrasive media. Last reviewed and updated: June 2026.<\/div>\n        <\/div>\n      <\/div>\n\n    <\/article>\n  <\/div><!-- \/.hlh-layout -->\n\n<\/div><!-- \/.hlh-pillar -->","protected":false},"excerpt":{"rendered":"<p>Technical Resource \u00b7 Jiangsu Henglihong Technology Co., Ltd. Silicon Carbide  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13377,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,177,138],"tags":[],"class_list":["post-13375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-material","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/posts\/13375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/comments?post=13375"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/posts\/13375\/revisions"}],"predecessor-version":[{"id":13378,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/posts\/13375\/revisions\/13378"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/media\/13377"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/media?parent=13375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/categories?post=13375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/zh\/wp-json\/wp\/v2\/tags?post=13375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}