{"id":9586,"date":"2025-08-06T14:56:20","date_gmt":"2025-08-06T06:56:20","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9586"},"modified":"2026-10-23T08:41:01","modified_gmt":"2026-10-23T00:41:01","slug":"cold-work-tool-steels","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/cold-work-tool-steels\/","title":{"rendered":"\ub0c9\uac04 \uac00\uacf5\uc6a9 \uacf5\uad6c\uac15 \ub4f1\uae09 \uacf5\uae09\uc5c5\uccb4 | D2, D3, A2, O1, S7 | \uc544\uc624\ubcf4 \uc2a4\ud2f8"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-text-align-center\" id=\"h-cold-work-tool-steel-grades\">Cold Work Tool Steel Grades<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Aobo Steel supplies cold work tool steel for blanking dies, forming dies, punches, shear blades, gauges, cold rolls and wear-resistant tooling. Our range includes AISI, DIN, JIS and GB grades supplied in annealed condition for machining before final heat treatment. Selection guidance by die type, including stamping, blanking and piercing dies, is in the <a href=\"https:\/\/aobosteel.com\/tool-steel-for-stamping-blanking-piercing-dies\/\">die selection guide for stamping and blanking<\/a>.<\/p>\n\n\n\n<h2 id=\"h-cold-work-tool-steel-grades-supplied-by-aobo-steel\" class=\"wp-block-heading\">Cold Work Tool Steel Grades Supplied by Aobo Steel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choose the grade according to wear resistance, toughness, dimensional stability, impact load and tooling cost. If the application is not clear, use the selection filter below as a quick starting point.<\/p>\n\n\n\n<div class=\"cwtf-coldwork-filter\">\n<style id=\"cwtf-coldwork-filter-css\">\/* Cold-work grade catalogue + selection filter.\n   Card language copied from the house card baseline (same shape as\n   \/hot-work-tool-steels\/, \/d-series-tool-steels\/, \/h-series-tool-steels\/):\n   white card, square corners, 1px hairline, soft shadow 0 12px 32px rgba(0,0,0,.04),\n   no card hover, 17px\/1.7 body, outline + blue pill buttons. *\/\n\n.cwtf-coldwork-filter{color:#0b0b0b;margin:24px 0 8px}\n.cwtf-coldwork-filter *{box-sizing:border-box}\n\n\/* ---- filter controls ---- *\/\n.cwtf-filter-box{background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:0;padding:18px 20px;margin:0 0 24px}\n.cwtf-filter-badge{display:inline-block;margin:0 0 12px;color:#6b7280;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}\n.cwtf-filter-row{display:grid;grid-template-columns:420px 1fr;gap:18px;align-items:center}\n.cwtf-filter-control label{display:block;color:#0b0b0b;font-size:14px;font-weight:700;margin-bottom:8px}\n.cwtf-filter-control select{width:100%;min-height:46px;border:1px solid rgba(0,0,0,.2);border-radius:6px;padding:0 14px;background:#fff;color:#0b0b0b;font-size:15px;outline:none}\n.cwtf-filter-note{color:#5b6470;font-size:14px;line-height:1.7;margin:0}\n\n\/* ---- card grid ---- *\/\n.cwtf-grade-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0;padding:0}\n.cwtf-grade-card{background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:0;box-shadow:0 12px 32px rgba(0,0,0,.04);overflow:hidden;display:flex;flex-direction:column;padding:0;min-width:0}\n.cwtf-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}\n.cwtf-card-label{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#6b7280;margin:0 0 6px}\n.cwtf-grade-card h3{padding:0;margin:0 0 8px;color:#0b0b0b;font-size:23px;font-weight:700;line-height:1.25;letter-spacing:-.01em}\n.cwtf-card-equiv{margin:0 0 10px;color:#5b6470;font-size:14px;line-height:1.5}\n.cwtf-grade-card p{padding:0;margin:0 0 14px;color:#0b0b0b;font-size:17px;line-height:1.7}\n.cwtf-card-meta{margin:auto 0 0;padding-top:4px}\n.cwtf-card-meta div{padding:9px 0;border-top:1px solid #eef0f3}\n.cwtf-card-meta b{display:block;margin-bottom:2px;color:#6b7280;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}\n.cwtf-card-meta span{display:block;color:#0b0b0b;font-size:15px;line-height:1.55}\n.cwtf-card-meta a{color:#074fd0;text-decoration:none}\n.cwtf-card-meta a:hover{text-decoration:underline}\n\n\/* ---- buttons: outline + solid blue, 50 \/ 50 ---- *\/\n.cwtf-card-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0 0}\n.cwtf-card-actions a{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:10px 12px;font-size:14px;line-height:1.25;text-decoration:none;text-align:center}\n.cwtf-card-actions .details{background:transparent;border:1px solid #0b0b0b;color:#0b0b0b;font-weight:400}\n.cwtf-card-actions .details:hover{background:#f4f8ff;color:#0b0b0b}\n.cwtf-card-actions .inquiry{background:#074fd0;border:1px solid #074fd0;color:#fff;font-weight:700}\n.cwtf-card-actions .inquiry:hover{background:#063c9e;border-color:#063c9e;color:#fff}\n\n.cwtf-grade-card.cwtf-hidden{display:none!important}\n\n@media (max-width:1000px){\n  .cwtf-filter-row{grid-template-columns:1fr}\n  .cwtf-grade-grid{grid-template-columns:repeat(2,minmax(0,1fr))}\n}\n@media (max-width:640px){\n  .cwtf-grade-grid{grid-template-columns:1fr}\n  .cwtf-card-actions{grid-template-columns:1fr}\n}<\/style>\n<div class=\"cwtf-filter-box\">\n  <div class=\"cwtf-filter-badge\">AISI, DIN, JIS and GB grades<\/div>\n  <div class=\"cwtf-filter-row\">\n    <div class=\"cwtf-filter-control\">\n      <label for=\"cwtfApplicationFilter\">Filter by application or selection need<\/label>\n      <select id=\"cwtfApplicationFilter\" onchange=\"(function(v){var g=document.querySelectorAll('#cwtfGradeGrid .cwtf-grade-card');for(var i=0;i<g.length;i++){var t=g[i].getAttribute('data-filter')||'all';if(v==='all'||t.indexOf(v)!==-1){g[i].classList.remove('cwtf-hidden');}else{g[i].classList.add('cwtf-hidden');}}})(this.value)\"><option value=\"all\">Show all cold work grades<\/option> <option value=\"wear\">High wear resistance<\/option> <option value=\"toughness\">Better toughness or shock resistance<\/option> <option value=\"stability\">Dimensional stability or lower distortion risk<\/option> <option value=\"economy\">Economical general-purpose tooling<\/option> <option value=\"gb\">GB cold work grades<\/option> <option value=\"rolls\">Cold rolls, bearing parts and wear parts<\/option><\/select>\n    <\/div>\n    <p class=\"cwtf-filter-note\">This filter is for preliminary selection. Final grade choice should consider tool size, working material, failure mode, target hardness and heat-treatment condition. Where two equivalent names still behave differently in service, as with <a href=\"https:\/\/aobosteel.com\/d2-vs-skd11-tool-steel\/\">D2 and SKD11<\/a>, the comparison pages set out the difference.<\/p>\n  <\/div>\n<\/div>\n<div class=\"cwtf-grade-grid\" id=\"cwtfGradeGrid\">\n<article class=\"cwtf-grade-card\" data-filter=\"wear stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">AISI D-Series<\/div>\n    <h3>D2 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2379 \/ SKD11 \/ Cr12Mo1V1<\/div>\n    <p>High-carbon, high-chromium cold work steel for tooling that needs strong abrasive wear resistance and high compressive strength.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Blanking dies, forming dies, punches, <a href=\"https:\/\/aobosteel.com\/tool-steel-for-shear-blades-slitter-knives-industrial-knives\/\">shear blades<\/a><\/span><\/div><div><b>Selection reason<\/b><span>High wear resistance with good dimensional stability<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/d2-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"wear rolls all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">AISI D-Series<\/div>\n    <h3>D3 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2080 \/ SKD1 \/ Cr12<\/div>\n    <p>High-carbon, high-chromium cold work steel for severe wear conditions where toughness demand is not the main concern.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Wear plates, cold rolls, brick molds, ceramic tooling<\/span><\/div><div><b>Selection reason<\/b><span>Very high wear resistance and compressive strength<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/d3-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"wear stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">AISI D-Series<\/div>\n    <h3>D6 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2436 \/ SKD2<\/div>\n    <p>High-hardness cold work steel for dies and blades that require strong wear resistance and good hardenability.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Punching dies, <a href=\"https:\/\/aobosteel.com\/tool-steel-for-forming-drawing-bending-dies\/\">drawing dies<\/a>, shearing blades, cold-forming rolls<\/span><\/div><div><b>Selection reason<\/b><span>High hardness and wear resistance for abrasive service<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/d6-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"toughness stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">AISI A-Series<\/div>\n    <h3>A2 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2363 \/ SKD12 \/ Cr5Mo1V<\/div>\n    <p>Air-hardening cold work steel for tooling that needs a practical balance of wear resistance, toughness and dimensional control.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Blanking dies, forming tools, punches, <a href=\"https:\/\/aobosteel.com\/tool-steel-selection-for-gages-precision-tools\/\">gauges<\/a><\/span><\/div><div><b>Selection reason<\/b><span>Lower distortion risk than many oil-hardening grades<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/a2-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"economy all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">AISI O-Series<\/div>\n    <h3>O1 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2510 \/ SKS3<\/div>\n    <p>Oil-hardening cold work steel for general-purpose tooling, especially where machinability and cost control matter.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Short-run dies, punches, <a href=\"https:\/\/aobosteel.com\/tool-steel-for-gages-precision-tools\/\">gauges<\/a>, bushings, shear tools<\/span><\/div><div><b>Selection reason<\/b><span>Economical grade with good hardness and machinability<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/o1-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"economy stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">AISI O-Series<\/div>\n    <h3>O2 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2842<\/div>\n    <p>Manganese oil-hardening tool steel for precision cold work tools where stable size control is important.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Trimming dies, blanking tools, forming dies, punches, gauges<\/span><\/div><div><b>Selection reason<\/b><span>Good machinability and dimensional stability<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/o2-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"toughness all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">Shock-Resisting<\/div>\n    <h3>S1 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2550<\/div>\n    <p>Tungsten-alloyed shock-resisting steel for impact tools where cracking resistance is more important than maximum abrasive wear resistance.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Chisels, impact punches, shear blades, rivet tools<\/span><\/div><div><b>Selection reason<\/b><span>High toughness under mechanical shock<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/s1-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"toughness stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">Shock-Resisting<\/div>\n    <h3>S7 Tool Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.2355<\/div>\n    <p>Air-hardening shock-resisting steel for tools exposed to impact, heavy loading and cracking risk.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Heavy-duty punches, shear blades, cold-forming tools, impact dies<\/span><\/div><div><b>Selection reason<\/b><span>Strong impact toughness with useful dimensional stability<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/s7-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"rolls wear all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">Wear Parts<\/div>\n    <h3>52100 Bearing Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">1.3505 \/ 100Cr6 \/ GCr15<\/div>\n    <p>High-carbon chromium bearing steel used for high-hardness wear parts, bearing parts and cold rolling applications.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Bearings, cold rolls, wear parts, precision components<\/span><\/div><div><b>Selection reason<\/b><span>High hardness, wear resistance and fatigue performance<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/gcr15-steel\/\">View GCr15<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"wear toughness stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">Special Die Steel<\/div>\n    <h3>DC53 Steel<\/h3>\n    <div class=\"cwtf-card-equiv\">Improved cold work die steel<\/div>\n    <p>High-performance cold work die steel used when D2-level wear resistance needs better toughness and dimensional control.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Precision dies, punches, high-load tooling, difficult cold work dies<\/span><\/div><div><b>Selection reason<\/b><span>Better balance of wear resistance and toughness than standard D2<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/dc53-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb wear all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Cold Work<\/div>\n    <h3>Cr12<\/h3>\n    <div class=\"cwtf-card-equiv\">Related to D3 \/ 1.2080 type<\/div>\n    <p>GB high-carbon, high-chromium cold work steel for wear-resistant dies and tooling where toughness demand is limited.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Cold dies, wear plates, forming tools, cutting tools<\/span><\/div><div><b>Selection reason<\/b><span>High wear resistance in GB cold work tooling<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/cr12-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb wear stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Cold Work<\/div>\n    <h3>Cr12MoV<\/h3>\n    <div class=\"cwtf-card-equiv\">GB cold work die steel<\/div>\n    <p>GB cold work die steel widely used for wear-resistant dies, punches and forming tools.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Blanking dies, punches, forming dies, trimming tools<\/span><\/div><div><b>Selection reason<\/b><span>Wear resistance with improved hardenability over basic Cr12<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/cr12mov-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb wear stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Cold Work<\/div>\n    <h3>Cr12Mo1V1<\/h3>\n    <div class=\"cwtf-card-equiv\">GB equivalent family of D2 \/ 1.2379<\/div>\n    <p>GB high-carbon, high-chromium cold work steel for long-life dies and wear-resistant tools.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Blanking dies, forming dies, punches, shear tools<\/span><\/div><div><b>Selection reason<\/b><span>Strong wear resistance for cold work die applications<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/cr12mo1v1-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb toughness stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Cold Work<\/div>\n    <h3>Cr5Mo1V<\/h3>\n    <div class=\"cwtf-card-equiv\">Related to A2 \/ 1.2363 type<\/div>\n    <p>GB air-hardening cold work steel used when the tool needs a balance of wear resistance, toughness and dimensional stability.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Precision dies, punches, forming tools, gauges<\/span><\/div><div><b>Selection reason<\/b><span>Balanced cold work performance with lower distortion risk<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/cr5mo1v-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb toughness all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Tool Steel<\/div>\n    <h3>6CrW2Si<\/h3>\n    <div class=\"cwtf-card-equiv\">GB alloy tool steel<\/div>\n    <p>GB alloy tool steel for shear blades and impact-loaded tools requiring strength and resistance to chipping.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Shear blades, cutting tools, heavy-duty cold work tools<\/span><\/div><div><b>Selection reason<\/b><span>Useful toughness and strength for loaded tooling<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/6crw2si-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb economy all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Tool Steel<\/div>\n    <h3>9SiCr<\/h3>\n    <div class=\"cwtf-card-equiv\">GB low-alloy tool steel<\/div>\n    <p>GB low-alloy tool steel for economical cutting tools, gauges and cold work parts with moderate loading.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Gauges, small tools, cutting tools, measuring tools<\/span><\/div><div><b>Selection reason<\/b><span>Cost-effective choice for lower-alloy tool steel demand<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/9sicr-tool-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb economy stability all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Tool Steel<\/div>\n    <h3>9CrWMn<\/h3>\n    <div class=\"cwtf-card-equiv\">GB low-alloy cold work steel<\/div>\n    <p>GB low-alloy cold work steel for dies and measuring tools requiring machinability and dimensional control.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Gauges, cold work dies, precision tools, cutting tools<\/span><\/div><div><b>Selection reason<\/b><span>Economical grade for precision cold work applications<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/9crwmn-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<article class=\"cwtf-grade-card\" data-filter=\"gb rolls wear all\">\n  <div class=\"cwtf-card-body\">\n    <div class=\"cwtf-card-label\">GB Bearing Steel<\/div>\n    <h3>GCr15<\/h3>\n    <div class=\"cwtf-card-equiv\">52100 \/ 1.3505 \/ 100Cr6<\/div>\n    <p>GB high-carbon chromium bearing steel for bearing parts, cold rolls and wear-resistant precision components.<\/p>\n    <div class=\"cwtf-card-meta\"><div><b>Best for<\/b><span>Bearings, cold rolls, wear components, precision parts<\/span><\/div><div><b>Selection reason<\/b><span>High hardness and fatigue resistance after heat treatment<\/span><\/div><\/div>\n    <div class=\"cwtf-card-actions\">\n      <a class=\"details\" href=\"https:\/\/aobosteel.com\/gcr15-steel\/\">View Details<\/a>\n      <a class=\"inquiry popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n    <\/div>\n  <\/div>\n<\/article>\n<\/div>\n<script type=\"application\/ld+json\">\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"CollectionPage\",\n    \"name\": \"Cold Work Tool Steel Grades for Dies, Punches, Blades and Wear Parts\",\n    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You usually select the right steel by failure mode, not hardness alone.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Selection Need<\/th><th class=\"has-text-align-left\" data-align=\"left\">Recommended Grades<\/th><th class=\"has-text-align-left\" data-align=\"left\">Why These Grades Are Used<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Maximum wear resistance<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, D3, D6, Cr12, Cr12MoV, Cr12Mo1V1, DC53<\/td><td class=\"has-text-align-left\" data-align=\"left\">High carbon and high chromium provide strong carbide-based abrasive wear resistance.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Better toughness than high-chromium grades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">A2, Cr5Mo1V, S7, S1, DC53<\/td><td class=\"has-text-align-left\" data-align=\"left\">These grades are more suitable when chipping, cracking or impact failure is the main risk.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Lower distortion risk<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">A2, O2, S7, Cr5Mo1V, 9CrWMn<\/td><td class=\"has-text-align-left\" data-align=\"left\">Air-hardening or dimensionally stable grades are often safer for precision tools.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Economical general-purpose tooling<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">O1, O2, 9SiCr, 9CrWMn<\/td><td class=\"has-text-align-left\" data-align=\"left\">Good machinability and practical performance for short-run or moderate-load tooling.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Heavy impact or shock loading<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">S1, S7, 6CrW2Si<\/td><td class=\"has-text-align-left\" data-align=\"left\">Shock-resisting grades reduce the risk of cracking under sudden load.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Cold rolls, bearing parts and wear components<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">52100, GCr15, D3, D6<\/td><td class=\"has-text-align-left\" data-align=\"left\">These grades are selected for high hardness, wear resistance and fatigue performance.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-choose-by-tool-failure-mode\" class=\"wp-block-heading\">Choose by Tool Failure Mode<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A cold work tool usually fails by wear, chipping, cracking, deformation or heat-treatment distortion. Matching the steel to the failure mode gives better results than choosing the most famous grade.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Tooling Problem<\/th><th class=\"has-text-align-left\" data-align=\"left\">Common Cause<\/th><th class=\"has-text-align-left\" data-align=\"left\">Material Direction<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Fast abrasive wear<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">The tool material lacks enough carbide volume or hardness for the workpiece.<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, D3, D6, Cr12MoV, Cr12Mo1V1, DC53<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Edge chipping<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">The steel has high wear resistance but insufficient toughness for the load.<\/td><td class=\"has-text-align-left\" data-align=\"left\">A2, Cr5Mo1V, DC53, S7<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Cracking during service<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Impact load, sharp tool design or unsuitable hardness makes the tool too brittle.<\/td><td class=\"has-text-align-left\" data-align=\"left\">S1, S7, 6CrW2Si, A2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Heat-treatment distortion<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Quenching stress or uneven section size causes movement after hardening.<\/td><td class=\"has-text-align-left\" data-align=\"left\">A2, O2, S7, Cr5Mo1V, 9CrWMn<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Short-run tooling with cost pressure<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">High-alloy steel may exceed the real tool-life requirement.<\/td><td class=\"has-text-align-left\" data-align=\"left\">O1, O2, 9SiCr, 9CrWMn<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Cold rolling or bearing-related wear<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">The part needs high hardness and fatigue resistance.<\/td><td class=\"has-text-align-left\" data-align=\"left\">52100, GCr15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-cold-work-tool-steel-grade-groups\" class=\"wp-block-heading\">Cold Work Tool Steel Grade Groups<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cold work tool steels are commonly grouped by alloy system and hardening behavior. This helps compare steel families before reviewing individual product pages.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Group<\/th><th class=\"has-text-align-left\" data-align=\"left\">Typical Grades<\/th><th class=\"has-text-align-left\" data-align=\"left\">Main Feature<\/th><th class=\"has-text-align-left\" data-align=\"left\">Typical Applications<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>D-Series and high-chromium grades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, D3, D6, Cr12, Cr12MoV, Cr12Mo1V1<\/td><td class=\"has-text-align-left\" data-align=\"left\">High wear resistance from high carbon and chromium carbides<\/td><td class=\"has-text-align-left\" data-align=\"left\">Blanking dies, forming dies, shear blades, wear parts<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>A-Series and balanced cold work grades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">A2, Cr5Mo1V<\/td><td class=\"has-text-align-left\" data-align=\"left\">Balanced wear resistance, toughness and dimensional stability<\/td><td class=\"has-text-align-left\" data-align=\"left\">Precision dies, punches, gauges, forming tools<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>O-Series and low-alloy cold work grades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">O1, O2, 9SiCr, 9CrWMn<\/td><td class=\"has-text-align-left\" data-align=\"left\">Good machinability and practical cost for general tooling<\/td><td class=\"has-text-align-left\" data-align=\"left\">Short-run dies, gauges, cutting tools, punches<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Shock-resisting grades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">S1, S7, 6CrW2Si<\/td><td class=\"has-text-align-left\" data-align=\"left\">Higher toughness for tools exposed to impact or sudden load<\/td><td class=\"has-text-align-left\" data-align=\"left\">Impact punches, chisels, shear tools, heavy-duty tooling<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Bearing and wear-resistant grades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">52100, GCr15<\/td><td class=\"has-text-align-left\" data-align=\"left\">High hardness and fatigue resistance after heat treatment<\/td><td class=\"has-text-align-left\" data-align=\"left\">Bearings, cold rolls, wear parts, precision components<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-cold-work-tool-steel-applications\" class=\"wp-block-heading\">Cold Work Tool Steel Applications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The table below connects common cold work applications with suitable material directions. Final selection should consider tool life target, failure risk and heat-treatment capability.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Application<\/th><th class=\"has-text-align-left\" data-align=\"left\">Common Grade Options<\/th><th class=\"has-text-align-left\" data-align=\"left\">Selection Logic<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Blanking dies<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, A2, Cr12MoV, Cr12Mo1V1, DC53<\/td><td class=\"has-text-align-left\" data-align=\"left\">Balance wear resistance, chipping risk and dimensional control.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Forming dies<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, A2, O1, O2, Cr5Mo1V<\/td><td class=\"has-text-align-left\" data-align=\"left\">Select by wear level, forming load and distortion requirement.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Punches<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, A2, O1, S7, DC53<\/td><td class=\"has-text-align-left\" data-align=\"left\">Use wear grades for abrasive work and tougher grades for impact risk.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Shear blades<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, D6, S7, 6CrW2Si<\/td><td class=\"has-text-align-left\" data-align=\"left\">Blade selection depends on cutting load, edge chipping and wear.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Drawing dies<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, D6, O2, Cr12MoV<\/td><td class=\"has-text-align-left\" data-align=\"left\">Wear resistance and dimensional stability are usually important.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Gauges and precision tools<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">O1, O2, A2, 9SiCr, 9CrWMn<\/td><td class=\"has-text-align-left\" data-align=\"left\">Machinability and dimensional control are often more important than maximum wear resistance.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Cold rolls and bearing-related parts<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">52100, GCr15, D3, D6<\/td><td class=\"has-text-align-left\" data-align=\"left\">High hardness, wear resistance and fatigue resistance are key requirements.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Impact tools<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">S1, S7, 6CrW2Si<\/td><td class=\"has-text-align-left\" data-align=\"left\">Toughness and cracking resistance are more important than maximum carbide volume.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Cold work tool steels are normally supplied soft and annealed for machining. Final hardness, wear resistance, toughness, and dimensional stability <a href=\"https:\/\/aobosteel.com\/cold-work-tool-steel-heat-treatment\/\">depend on the hardening and tempering process<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D2, D3, D6, Cr12, Cr12MoV and Cr12Mo1V1 require careful heat-treatment control. Overheating, poor quenching, or insufficient tempering can lead to cracking, retained austenite, or unstable tool size.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A2, S7, O2, Cr5Mo1V, and 9CrWMn are often considered when distortion, chipping, or cracking risk is more important than maximum abrasive wear resistance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cold Work Tool Steel Grades Aobo Steel supplies cold work tool steel for blanking dies, forming dies, punches, shear blades, gauges, cold rolls and wear-resistant tooling. Our range includes AISI, DIN, JIS and GB grades supplied in annealed condition for machining before final heat treatment. Selection guidance by die type, including stamping, blanking and piercing [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15261,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-9586","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Cold Work Tool Steel Grades Supplier | D2, D3, A2, O1, S7 | Aobo Steel<\/title>\n<meta name=\"description\" content=\"Explore cold work tool steel grades including D2, D3, D6, A2, O1, O2, S1, S7, 52100 and DC53. Aobo Steel supplies annealed tool steel in bulk with MTC, UT inspection and export support.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/ko\/cold-work-tool-steels\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cold Work Tool Steel Grades Supplier | D2, D3, A2, O1, S7 | Aobo Steel\" \/>\n<meta property=\"og:description\" content=\"Explore cold work tool steel grades including D2, D3, D6, A2, O1, O2, S1, S7, 52100 and DC53. 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