{"id":13069,"date":"2026-05-11T02:26:56","date_gmt":"2026-05-11T02:26:56","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13069"},"modified":"2026-05-11T02:26:56","modified_gmt":"2026-05-11T02:26:56","slug":"steel-grit-vs-aluminum-oxide-vs-garnet-which-blast-media-is-right-for-you","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/ja\/resource\/blog\/steel-grit-vs-aluminum-oxide-vs-garnet-which-blast-media-is-right-for-you\/","title":{"rendered":"Steel Grit vs Aluminum Oxide vs Garnet: Which Blast Media Is Right for You?"},"content":{"rendered":"<!-- ==================== D1: Steel Grit vs Aluminum Oxide vs Garnet ==================== -->\n<style>\n.hlh-d1*{box-sizing:border-box;margin:0;padding:0}\n.hlh-d1{font-family:'Segoe UI',Arial,sans-serif;font-size:16px;line-height:1.75;color:#2D2D2D;max-width:900px;margin:0 auto;padding:0 16px}\n.hlh-d1-hero{background:linear-gradient(135deg,#1B4F8A 0%,#0d3260 100%);color:#fff;border-radius:10px;padding:48px 40px 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#d6e0ec;background:#fff}\n.hlh-d1-cta{background:linear-gradient(135deg,#1B4F8A 0%,#0d3260 100%);color:#fff;border-radius:10px;padding:44px 36px;margin-top:52px;text-align:center}\n.hlh-d1-cta h2{color:#fff;border:none;font-size:clamp(18px,2.8vw,25px);margin:0 0 12px}\n.hlh-d1-cta p{color:#c8dff5;font-size:14px;max-width:520px;margin:0 auto 24px}\n.hlh-d1-cta-btn{display:inline-block;background:#fff;color:#1B4F8A;font-size:15px;font-weight:700;padding:13px 32px;border-radius:6px;text-decoration:none}\n.hlh-d1-cta-btn:hover{background:#e8f0fa}\n.hlh-d1-breadcrumb{font-size:13px;color:#666;margin-bottom:20px}\n.hlh-d1-breadcrumb a{color:#1B4F8A;text-decoration:none}\n.hlh-d1-breadcrumb a:hover{text-decoration:underline}\n@media(max-width:600px){.hlh-d1-hero{padding:32px 20px 28px}.hlh-d1-cta{padding:32px 20px}}\n<\/style>\n\n<article class=\"hlh-d1\" itemscope itemtype=\"https:\/\/schema.org\/Article\">\n<div class=\"hlh-d1-breadcrumb\"><a href=\"https:\/\/hlh-js.com\/resource\/blog\/sandblasting-media-suppliers-the-industrial-buyers-complete-guide\/\" target=\"_blank\" rel=\"noopener\">\u2190 Back to: Sandblasting Media Suppliers Complete Guide<\/a><\/div>\n\n<header class=\"hlh-d1-hero\">\n  <span class=\"hlh-d1-hero-label\">Comparison Guide \u00b7 May 2026<\/span>\n  <h1 itemprop=\"headline\">Steel Grit vs Aluminum Oxide vs Garnet: Which Blast Media Is Right for You?<\/h1>\n  <div class=\"hlh-d1-hero-meta\"><span>Updated: May 2026<\/span><span>~2,600 words \u00b7 10-min read<\/span><span>\u6c5f\u8607\u6052\u9686\u79d1\u6280\u6709\u9650\u516c\u53f8<\/span><\/div>\n<\/header>\n\n<nav class=\"hlh-d1-toc\" aria-label=\"Table of Contents\">\n  <div class=\"hlh-d1-toc-title\">Table of Contents<\/div>\n  <ol>\n    <li><a href=\"#d1-intro\">The Three Most Compared Abrasives<\/a><\/li>\n    <li><a href=\"#d1-properties\">Physical Properties Side-by-Side<\/a><\/li>\n    <li><a href=\"#d1-performance\">Blasting Performance Comparison<\/a><\/li>\n    <li><a href=\"#d1-cost\">True Cost Comparison<\/a><\/li>\n    <li><a href=\"#d1-safety\">Safety &amp; Regulatory Profile<\/a><\/li>\n    <li><a href=\"#d1-scenarios\">Decision Guide: Which to Use When<\/a><\/li>\n    <li><a href=\"#d1-faq\">\u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/a><\/li>\n  <\/ol>\n<\/nav>\n\n<section itemprop=\"articleBody\">\n\n<p>Steel grit, aluminum oxide, and garnet are the three abrasive blasting media most frequently considered by industrial buyers sourcing for general surface preparation. Each is well-established, widely available, OSHA-compliant, and capable of achieving Sa 2.5 on most steel substrates. But their performance profiles, true costs, and optimal use cases differ significantly \u2014 and choosing the wrong one for your operation adds unnecessary cost or compromises surface preparation quality.<\/p>\n\n<p>This comparison guide gives you the complete technical and economic picture for all three media types. It is part of the master resource at <a href=\"https:\/\/hlh-js.com\/resource\/blog\/sandblasting-media-suppliers-the-industrial-buyers-complete-guide\/\" target=\"_blank\" rel=\"noopener\">Sandblasting Media Suppliers: The Industrial Buyer&#8217;s Complete Guide<\/a> by Jiangsu Henglihong Technology Co., Ltd.<\/p>\n\n<h2 id=\"d1-properties\">1. Physical Properties Side-by-Side<\/h2>\n\n<div class=\"hlh-d1-table-wrap\">\n<table class=\"hlh-d1-table\">\n  <thead><tr><th>Property<\/th><th>Steel Grit G25 (Medium)<\/th><th>Aluminum Oxide BFA #36<\/th><th>Garnet 30\/60<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>\u7d20\u6750<\/td><td>Hardened carbon steel<\/td><td>Fused aluminum oxide (Al\u2082O\u2083)<\/td><td>Natural almandine silicate<\/td><\/tr>\n    <tr><td>Shape<\/td><td>Angular \/ faceted<\/td><td>Sharp angular \/ blocky<\/td><td>Sub-angular<\/td><\/tr>\n    <tr><td>Mohs hardness<\/td><td>6.5\u20137.5 (HRC 47\u201356)<\/td><td>9.0<\/td><td>7.0\u20138.0<\/td><\/tr>\n    <tr><td>Specific gravity (g\/cm\u00b3)<\/td><td>7.4\u20137.7<\/td><td>3.9\u20134.0<\/td><td>3.8\u20134.1<\/td><\/tr>\n    <tr><td>Free silica content<\/td><td>&lt;0.1%<\/td><td>&lt;0.1% (BFA); &lt;0.05% (WFA)<\/td><td>&lt;1% (typically &lt;0.1%)<\/td><\/tr>\n    <tr><td>Iron contamination risk<\/td><td>Yes \u2014 metallic iron<\/td><td>No<\/td><td>No<\/td><\/tr>\n    <tr><td>Particle size (standard grade)<\/td><td>1.0 mm nominal<\/td><td>500\u2013710 \u00b5m<\/td><td>600\u2013250 \u00b5m<\/td><\/tr>\n    <tr><td>\u30ea\u30b5\u30a4\u30af\u30eb\u6027<\/td><td>500\u20131,500 cycles<\/td><td>50\u2013150 cycles<\/td><td>3\u20136 cycles<\/td><\/tr>\n    <tr><td>Dust generation (relative)<\/td><td>\u4f4e\u3044<\/td><td>\u4e2d\u7a0b\u5ea6<\/td><td>Low\u2013Moderate<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<h2 id=\"d1-performance\">2. Blasting Performance Comparison<\/h2>\n\n<div class=\"hlh-d1-table-wrap\">\n<table class=\"hlh-d1-table\">\n  <thead><tr><th>Performance Metric<\/th><th>Steel Grit G25<\/th><th>Al\u2082O\u2083 BFA #36<\/th><th>Garnet 30\/60<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Max cleanliness achievable<\/td><td>Sa 3 (with GH hardness)<\/td><td>Sa 3<\/td><td>Sa 2.5 reliably; Sa 3 possible with high pressure<\/td><\/tr>\n    <tr><td>Typical profile depth<\/td><td>50\u201380 \u00b5m<\/td><td>60\u201390 \u00b5m<\/td><td>40\u201365 \u00b5m<\/td><\/tr>\n    <tr><td>Blast productivity (m\u00b2\/hr)<\/td><td>Very high (heavy, fast cutting)<\/td><td>\u9ad8\u3044<\/td><td>Moderate\u2013High<\/td><\/tr>\n    <tr><td>Profile type<\/td><td>Angular, deep valleys<\/td><td>Angular, very sharp peaks<\/td><td>Sub-angular, moderate peaks<\/td><\/tr>\n    <tr><td>Performance on heavy mill scale<\/td><td>\u7d20\u6674\u3089\u3057\u3044<\/td><td>\u7d20\u6674\u3089\u3057\u3044<\/td><td>Good (may need multiple passes)<\/td><\/tr>\n    <tr><td>Performance on thin plate<\/td><td>Good (use finer grade)<\/td><td>\u30b0\u30c3\u30c9<\/td><td>Very good (less rebound risk)<\/td><\/tr>\n    <tr><td>Stainless steel compatibility<\/td><td>No (iron contamination)<\/td><td>Yes (use WFA)<\/td><td>Yes<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<h2 id=\"d1-cost\">3. True Cost Comparison (Enclosed Blast Room, per m\u00b2)<\/h2>\n\n<div class=\"hlh-d1-table-wrap\">\n<table class=\"hlh-d1-table\">\n  <thead><tr><th>Cost Factor<\/th><th>Steel Grit G25<\/th><th>Al\u2082O\u2083 BFA #36<\/th><th>Garnet 30\/60<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Unit price (FOB, USD\/MT)<\/td><td>$480\u2013$580<\/td><td>$580\u2013$750<\/td><td>$180\u2013$280<\/td><\/tr>\n    <tr><td>Recycle cycles<\/td><td>500\u20131,500<\/td><td>50\u2013150<\/td><td>3\u20136<\/td><\/tr>\n    <tr><td>Effective consumption (kg\/m\u00b2)<\/td><td>0.3\u20131.5<\/td><td>4\u201312<\/td><td>25\u201360<\/td><\/tr>\n    <tr><td>True media cost per m\u00b2<\/td><td>$0.04\u2013$0.12<\/td><td>$0.06\u2013$0.18<\/td><td>$0.15\u2013$0.35<\/td><\/tr>\n    <tr><td>Disposal cost per m\u00b2<\/td><td>Very low<\/td><td>\u4f4e\u3044<\/td><td>Low\u2013Moderate<\/td><\/tr>\n    <tr><td>Overall verdict<\/td><td>\u2705 Lowest true cost<\/td><td>Mid-range<\/td><td>Higher (use for open-air)<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<div class=\"hlh-d1-winner\">\n  <strong>\ud83d\udca1 Cost winner: Steel Grit<\/strong>\n  For enclosed blast room operations on carbon steel, steel grit consistently delivers the lowest true cost per m\u00b2 prepared \u2014 often 3\u20136\u00d7 lower than garnet and 1.5\u20133\u00d7 lower than aluminum oxide on a lifecycle basis. Garnet&#8217;s cost advantage over aluminum oxide is significant for once-through open-air operations where recycling is not possible.\n<\/div>\n\n<h2 id=\"d1-safety\">4. Safety &amp; Regulatory Profile<\/h2>\n\n<div class=\"hlh-d1-table-wrap\">\n<table class=\"hlh-d1-table\">\n  <thead><tr><th>Safety Factor<\/th><th>\u30b9\u30c1\u30fc\u30eb\u30b0\u30ea\u30c3\u30c8<\/th><th>\u9178\u5316\u30a2\u30eb\u30df\u30cb\u30a6\u30e0<\/th><th>\u30ac\u30fc\u30cd\u30c3\u30c8<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Free silica (&lt;1% OSHA threshold)<\/td><td>\u2705 Yes<\/td><td>\u2705 Yes<\/td><td>\u2705 Yes<\/td><\/tr>\n    <tr><td>Heavy metals<\/td><td>None significant<\/td><td>None significant<\/td><td>None significant<\/td><\/tr>\n    <tr><td>Dust hazard (relative)<\/td><td>\u4f4e\u3044<\/td><td>Moderate (finer particles)<\/td><td>\u4f4e\u3044<\/td><\/tr>\n    <tr><td>Spent abrasive disposal<\/td><td>Non-hazardous (clean substrate)<\/td><td>Non-hazardous<\/td><td>Non-hazardous<\/td><\/tr>\n    <tr><td>ISO 11124 certification available<\/td><td>\u2705 Yes<\/td><td>\u2705 Yes (ISO 11127)<\/td><td>\u2705 Yes (ISO 11126-10)<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<p>For full OSHA compliance guidance applicable to all three media types, see: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/osha-sandblasting-safety-why-silica-sand-is-banned-and-what-to-use-instead\/\" target=\"_blank\" rel=\"noopener\">OSHA Sandblasting Safety: Why Silica Sand Is Banned and What to Use Instead<\/a>.<\/p>\n\n<h2 id=\"d1-scenarios\">5. Decision Guide: Which to Use When<\/h2>\n\n<div class=\"hlh-d1-callout hlh-d1-callout-tip\">\n  <strong>\u2705 Choose Steel Grit when:<\/strong>\n  You have an enclosed blast room with media recovery; substrate is carbon steel; coating spec requires Sa 2.5 or Sa 3 with 40\u2013100 \u00b5m profile; production volume is high; minimizing cost per m\u00b2 is the priority. See: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/steel-grit-steel-shot-suppliers-specs-grades-bulk-pricing\/\" target=\"_blank\" rel=\"noopener\">Steel Grit &amp; Steel Shot Suppliers Guide<\/a>.\n<\/div>\n\n<div class=\"hlh-d1-callout\">\n  <strong>\u2699 Choose Aluminum Oxide when:<\/strong>\n  Substrate is stainless steel, titanium, or non-ferrous (use WFA); application is thermal spray substrate preparation; precision profile depth control is required; iron contamination is unacceptable. See: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/aluminum-oxide-blasting-media-suppliers-grit-sizes-hardness-sourcing\/\" target=\"_blank\" rel=\"noopener\">Aluminum Oxide Blasting Media Guide<\/a>.\n<\/div>\n\n<div class=\"hlh-d1-callout\">\n  <strong>\ud83c\udf3f Choose Garnet when:<\/strong>\n  Operation is open-air field blasting; dust generation must be minimized for worker safety or environmental compliance; project specifications call for garnet (common in pipeline and offshore contracts); iron contamination risk must be eliminated without the cost of WFA. See: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/garnet-abrasive-suppliers-gma-garnet-vs-almandine-mesh-sizes-bulk\/\" target=\"_blank\" rel=\"noopener\">Garnet Abrasive Suppliers Guide<\/a>.\n<\/div>\n\n<h2 id=\"d1-faq\">6. Frequently Asked Questions<\/h2>\n\n<div class=\"hlh-d1-faq-item\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n  <div class=\"hlh-d1-faq-q\" itemprop=\"name\">Can I mix steel grit and garnet in the same blast room?<\/div>\n  <div class=\"hlh-d1-faq-a\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"><div itemprop=\"text\">Mixing different media types in a blast room&#8217;s working mix is generally not recommended. The different densities and particle size distributions of steel grit and garnet make separator calibration very difficult \u2014 the separator is designed to remove fines at a specific density, and a mixed media creates classification errors. Additionally, any steel grit contamination in the working mix could introduce iron particles onto non-ferrous substrates if the blast room is shared between different substrate types. Dedicated media for dedicated blast rooms is the correct approach.<\/div><\/div>\n<\/div>\n\n<div class=\"hlh-d1-faq-item\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n  <div class=\"hlh-d1-faq-q\" itemprop=\"name\">Which media is most commonly specified for pipeline projects?<\/div>\n  <div class=\"hlh-d1-faq-a\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"><div itemprop=\"text\">For pipeline field blasting prior to FBE or 3LPE coating, garnet (30\/60 mesh, almandine or GMA) is the most commonly specified and used media in North America, the Middle East, and Australia. It delivers the required 40\u201370 \u00b5m anchor profile, generates low dust in field conditions, has no iron contamination risk that could affect coating adhesion, and is specified by name in many pipeline owner coating specifications. Steel grit is used in production-line automated blast facilities for pipe mills and fabricators.<\/div><\/div>\n<\/div>\n\n<\/section>\n\n<div class=\"hlh-d1-cta\">\n  <h2>Not Sure Which Media Fits Your Project?<\/h2>\n  <p>Contact the technical team at Jiangsu Henglihong Technology Co., Ltd. with your substrate, coating spec, and operating setup. We will provide a media recommendation and competitive quotation within 24 hours.<\/p>\n  <a class=\"hlh-d1-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Get a Recommendation \u2192<\/a>\n<\/div>\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Article\",\n    \"headline\": \"Steel Grit vs Aluminum Oxide vs Garnet: Which Blast Media Is Right for You?\",\n    \"datePublished\": \"2026-05-01\",\n    \"dateModified\": \"2026-05-01\",\n    \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n        \"url\": \"https:\\\/\\\/hlh-js.com\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n        \"url\": \"https:\\\/\\\/hlh-js.com\"\n    },\n    \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/steel-grit-vs-aluminum-oxide-vs-garnet-which-blast-media-is-right-for-you\\\/\"\n    }\n}<\/script>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>\u2190 Back to: Sandblasting Media Suppliers Complete Guide Comparison Guide  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13071,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,177,138],"tags":[],"class_list":["post-13069","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-material","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts\/13069","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/comments?post=13069"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts\/13069\/revisions"}],"predecessor-version":[{"id":13072,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts\/13069\/revisions\/13072"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/media\/13071"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/media?parent=13069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/categories?post=13069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/tags?post=13069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}