{"id":11825,"date":"2025-12-31T21:02:20","date_gmt":"2025-12-31T13:02:20","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11825"},"modified":"2026-10-22T10:24:46","modified_gmt":"2026-10-22T02:24:46","slug":"tool-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/tool-steel-heat-treatment-guide\/","title":{"rendered":"\uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc"},"content":{"rendered":"\n<style>\n.entry-content[class] .htg-hero{max-width:1180px;margin:0 auto;padding:18px 0 10px}\n.entry-content[class] .htg-h1{font-size:clamp(31px,3.25vw,47px)!important;font-weight:400!important;line-height:1.12!important;letter-spacing:0!important;text-transform:uppercase;margin:0 0 18px!important;text-align:center}\n.entry-content[class] .htg-deck{font-size:17px;line-height:1.7;margin:0!important;max-width:none;text-align:left}\n.entry-content[class] .htg-deck a,.entry-content[class] .htg-desc 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.htg-dot{width:9px;height:9px;border-radius:50%;background:currentColor;display:inline-block;flex:0 0 auto}\n.entry-content[class] .htg-steps,.entry-content[class] .htg-risks{list-style:none!important;margin:0!important;padding:0!important}\n.entry-content[class] .htg-steps{counter-reset:step}\n.entry-content[class] .htg-steps li{position:relative;padding:12px 0 12px 44px!important;border-bottom:1px solid rgba(0,0,0,.08);margin:0!important;font-size:17px;line-height:1.7;}\n.entry-content[class] .htg-steps li::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:0;top:13px;font-size:13px;font-weight:800;}\n.entry-content[class] .htg-steps li:last-child,.entry-content[class] .htg-risks li:last-child{border-bottom:none}\n.entry-content[class] .htg-steps li b,.entry-content[class] .htg-risks li b{font-weight:800}\n.entry-content[class] .htg-risks li{padding:12px 0;border-bottom:1px solid rgba(0,0,0,.08);margin:0!important;font-size:17px;line-height:1.7;}\n.entry-content[class] .htg-risks li b{display:block;margin-bottom:2px}\n.entry-content[class] .htg-validation{max-width:none;background:#fbfdff;border:1px solid rgba(0,0,0,.12);border-left:5px solid currentColor;padding:22px 24px;margin:46px 0 24px}\n.entry-content[class] .htg-note-p{margin:0!important;font-size:17px;line-height:1.7;font-style:italic}\n.entry-content[class] .htg-note-p a{font-weight:700;text-decoration:none}\n@media (max-width:781px){\n .entry-content[class] .htg-grid{grid-template-columns:1fr}\n .entry-content[class] .htg-specs{grid-template-columns:1fr}\n .entry-content[class] .htg-spec{border-right:0;border-bottom:1px solid rgba(0,0,0,.12)}\n .entry-content[class] .htg-spec:last-child{border-bottom:0}\n .entry-content[class] .htg-cols{grid-template-columns:1fr;gap:30px}\n .entry-content[class] .htg-h2{font-size:25px!important}\n .entry-content[class] .htg-h4{font-size:17px!important}\n .entry-content[class] .htg-validation{padding:18px 18px}\n}\n\n.entry-content[class] .htg-actions .wp-block-button__link{color:#fff}\n.entry-content[class] .htg-actions .is-style-outline .wp-block-button__link{background:transparent;color:inherit;border:1px solid currentColor}\n.entry-content[class] .htg-k{font-size:11px;letter-spacing:.6px;white-space:nowrap}\n<\/style>\n\n\n\n<div class=\"wp-block-group htg-hero is-layout-flow wp-block-group-is-layout-flow\">\n\n<h1 class=\"wp-block-heading htg-h1\">Heat treatment guidance for tool steel<\/h1>\n\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading htg-cat-h\">Cold Work<span class=\"htg-note\">Wear-resistant grades for blanking, forming and cutting at room temperature.<\/span><\/h3>\n\n\n\n<div class=\"wp-block-group htg-grid is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">D2<span class=\"htg-desig\">1.2379 \/ SKD11<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/d5-and-d7-tool-steel-heat-treatment\/\">High-carbon high-chromium cold-work steel<\/a>. Air hardening keeps distortion low while delivering excellent wear resistance for long production runs.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">995\u20131030\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">58\u201360 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">D3<span class=\"htg-desig\">1.2080 \/ SKD1<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">High-wear cold-work steel for long-run blanking and forming. Oil hardening reaches very high hardness but calls for care to avoid quench cracking.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">925\u2013980\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">58\u201364 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/d3-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">D6<span class=\"htg-desig\">1.2436 \/ SKD2<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Tungsten-alloyed cold-work steel with fine, stable carbides that hold a keen edge in cutting and trimming tools.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">~960\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">58\u201364 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--3\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/d6-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">A2<span class=\"htg-desig\">1.2363 \/ SKD12<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/a8-tool-steel-heat-treatment\/\">Air-hardening cold-work steel<\/a> that balances wear resistance and toughness, with better dimensional stability than oil-hardening grades.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">925\u2013980\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">57\u201362 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--4\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/a2-tool-steel-heat-treatment-guide\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">O1<span class=\"htg-desig\">1.2510 \/ SKS3<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">General-purpose oil-hardening tool steel, easy to machine and forgiving in the shop, a reliable choice for short to medium runs.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">790\u2013815\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">57\u201362 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--5\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/o1-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">O2<span class=\"htg-desig\">1.2842<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Manganese oil-hardening steel with low distortion on quench, well suited to gauges and precision tooling.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">790\u2013815\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">57\u201362 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--6\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading htg-cat-h\">Shock-Resisting<span class=\"htg-note\">Tough grades for tooling under heavy impact and shock loads.<\/span><\/h3>\n\n\n\n<div class=\"wp-block-group htg-grid is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">S1<span class=\"htg-desig\">1.2550<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Tungsten shock-resisting steel for impact tools that also need moderate wear resistance. Often tempered immediately after quench to prevent cracking.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">900\u2013955\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">50\u201358 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--7\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">S7<span class=\"htg-desig\">1.2355<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Air-hardening shock-resisting steel with high toughness and deep hardenability for dies that take repeated heavy impact.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">925\u2013955\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">54\u201358 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--8\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading htg-cat-h\">Hot Work<span class=\"htg-note\">Grades that hold strength and resist thermal fatigue at elevated temperatures.<\/span><\/h3>\n\n\n\n<div class=\"wp-block-group htg-grid is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">H10<span class=\"htg-desig\">1.2365<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Chromium-molybdenum hot-work steel with strong resistance to thermal softening, used for hot punches, extrusion tooling and inserts.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">995\u20131025\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">40\u201352 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--9\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/h10-tool-steel-heat-treatment-guide\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">H11<span class=\"htg-desig\">1.2343 \/ SKD6<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Air-hardening hot-work steel with deep hardenability and high toughness for die casting, extrusion and forging dies.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">995\u20131025\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">42\u201354 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--10\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/h11-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">H13<span class=\"htg-desig\">1.2344 \/ SKD61<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">The workhorse hot-work grade, combining thermal-fatigue resistance with toughness for die casting, forging and extrusion dies.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">995\u20131040\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">44\u201352 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--11\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/h13-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading htg-cat-h\">High Speed<span class=\"htg-note\">Red-hard grades for cutting tools that run hot and fast.<\/span><\/h3>\n\n\n\n<div class=\"wp-block-group htg-grid is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">M2<span class=\"htg-desig\">1.3343 \/ SKH51<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Versatile high-speed steel with a strong balance of wear resistance and toughness for drills, taps and cutting tools.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">1190\u20131230\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil\/Air\/Salt<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">60\u201365 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--12\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading htg-cat-h\">Stainless<span class=\"htg-note\">Corrosion-resistant grades for molds, blades and wear parts in wet or hygienic environments.<\/span><\/h3>\n\n\n\n<div class=\"wp-block-group htg-grid is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">440C<span class=\"htg-desig\">1.4125 \/ SUS440C<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">High-carbon martensitic stainless steel that reaches high hardness while resisting corrosion, used for bearings, knife blades and wear parts.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">1010-1065\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil \/ Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">58-60 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--13\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/440c-stainless-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">420<span class=\"htg-desig\">1.2083 \/ SUS420<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Corrosion-resistant martensitic stainless steel with good polishability, widely used for plastic molds and blades that run in humid or corrosive conditions.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">980-1035\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil \/ Air<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">48-52 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--14\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/420-stainless-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading htg-cat-h\">Bearing &#038; Other<span class=\"htg-note\">Specialist grades for bearings and shock-loaded forging tooling.<\/span><\/h3>\n\n\n\n<div class=\"wp-block-group htg-grid is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">52100<span class=\"htg-desig\">1.3505 \/ 100Cr6<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">High-carbon chromium bearing steel for components that need high hardness and good wear resistance, such as rollers and races.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">815\u2013860\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">60\u201364 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--15\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-card is-layout-flow wp-block-group-is-layout-flow\">\n\n<h3 class=\"wp-block-heading htg-grade\">L6<span class=\"htg-desig\">1.2714 \/ SKT4<\/span><\/h3>\n\n\n\n<p class=\"htg-desc wp-block-paragraph\">Nickel-chromium tool steel with high toughness and good hardenability for shock-loaded dies and <a href=\"https:\/\/aobosteel.com\/5crmnmo-tool-steel-heat-treatment\/\">large forging tooling<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-group htg-specs is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Austenitize<\/span><span class=\"htg-v hot\">815\u2013870\u00b0C<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Quench<\/span><span class=\"htg-v \">Oil<\/span><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-spec is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\"><span class=\"htg-k\">Working<\/span><span class=\"htg-v \">45\u201358 HRC<\/span><\/p>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-buttons htg-actions is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button htg-quote popmake-16052\"><a class=\"wp-block-button__link wp-element-button\" href=\"#quote\">Request a quote<\/a><\/div>\n\n\n\n<div class=\"wp-block-button htg-guide is-style-outline is-style-outline--16\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/l6-tool-steel-heat-treatment\/\">Read guide<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-fund is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading htg-h2\">Heat treatment, in four steps<\/h2>\n\n\n\n<p class=\"htg-lead wp-block-paragraph\">Heat treatment is controlled heating and cooling that <a href=\"https:\/\/aobosteel.com\/tool-steel-microstructure\/\">changes microstructure<\/a> and properties while limiting shape change. The chain runs preheat, austenitize, quench and <a href=\"https:\/\/aobosteel.com\/carbon-tool-steel-temper-chart\/\">temper<\/a>, and the final result is set by its weakest link, above all furnace uniformity, part geometry and quench severity.<\/p>\n\n\n\n<p class=\"htg-p wp-block-paragraph\">The four steps are part of one sequence that starts long before the tool is finished, and the structure changes at every stage of it.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full htg-fig\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"685\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-7-tool-steel-processing-heat-treatment-schematic.jpg\" alt=\"Schematic diagram of tool steel processing and heat treatment before final hardening: soft annealing, normalizing, annealing, stress relief and machining\" class=\"wp-image-21719\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-7-tool-steel-processing-heat-treatment-schematic.jpg 1400w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-7-tool-steel-processing-heat-treatment-schematic-300x147.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-7-tool-steel-processing-heat-treatment-schematic-1024x501.jpg 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-7-tool-steel-processing-heat-treatment-schematic-768x376.jpg 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-7-tool-steel-processing-heat-treatment-schematic-18x9.jpg 18w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Fig. 11.7. Schematic diagram of tool steel processing and heat treatment before the final hardening: soft annealing, normalizing, annealing, stress relief and machining, with the structure marked at each stage (A austenite, C carbides, F ferrite, M martensite). Annealing before machining is what puts the steel in the soft spheroidized condition a shop can cut, and the stress relief between roughing and finishing is what keeps the part from moving on the final cuts. Source: E. Essadiqi, Tool Steels, in Steel Heat Treatment: Metallurgy and Technologies (G.E. Totten, ed.), CRC Press, 2006, Fig. 11.7.<\/figcaption><\/figure>\n\n\n\n<p class=\"htg-p wp-block-paragraph\">The last of those processes, the final hardening, is the three steps that set the properties the tool will work with.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full htg-fig\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"875\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-8-final-hardening-steps-schematic.jpg\" alt=\"Schematic diagram of the tool steel heat treatment steps for final hardening: austenitizing, quenching in water oil or air, and tempering\" class=\"wp-image-21720\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-8-final-hardening-steps-schematic.jpg 1400w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-8-final-hardening-steps-schematic-300x188.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-8-final-hardening-steps-schematic-1024x640.jpg 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-8-final-hardening-steps-schematic-768x480.jpg 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Heat-Treatment-Guide-totten-fig-11-8-final-hardening-steps-schematic-18x12.jpg 18w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Fig. 11.8. Schematic diagram of the tool steel heat treatment steps for final hardening: austenitizing, quenching in water, oil or air, and tempering. Each cooling path is drawn with the structure it finishes in, from pearlite through bainite to martensite, which is the choice the quench medium and the section size make together. The tempering step is shown separately because it is a second hold, not part of the cooling curve. Source: E. Essadiqi, Tool Steels, in Steel Heat Treatment: Metallurgy and Technologies (G.E. Totten, ed.), CRC Press, 2006, Fig. 11.8.<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-group htg-cols is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group htg-col is-layout-flow wp-block-group-is-layout-flow\">\n\n<h4 class=\"wp-block-heading htg-h4\"><span class=\"htg-dot\"><\/span>Process chain<\/h4>\n\n\n\n<ol class=\"wp-block-list htg-steps\">\n\n<li><b>Preheat<\/b> reduces thermal shock and lowers the risk of cracking.<\/li>\n\n\n\n<li><b>Austenitize<\/b> dissolves carbides to enrich the austenite with carbon and alloying elements.<\/li>\n\n\n\n<li><b>Quench<\/b> suppresses pearlite and <a href=\"https:\/\/aobosteel.com\/austempering-section-size-bainite-hardness-chart\/\">bainite<\/a> to form martensite.<\/li>\n\n\n\n<li><b>Temper<\/b> restores toughness and controls retained austenite.<\/li>\n\n<\/ol>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-col is-layout-flow wp-block-group-is-layout-flow\">\n\n<h4 class=\"wp-block-heading htg-h4\"><span class=\"htg-dot\"><\/span>Common risk factors<\/h4>\n\n\n\n<ul class=\"wp-block-list htg-risks\">\n\n<li><b>Distortion<\/b> Comes from residual stress, thermal gradients and the volume change of phase transformation.<\/li>\n\n\n\n<li><b>Quench cracking<\/b> Rises with sharp corners, high tensile stress and excessive quench severity.<\/li>\n\n\n\n<li><b>Retained austenite<\/b> May need multiple tempers or <a href=\"https:\/\/aobosteel.com\/cryogenic-treatment-of-tool-steel\/\">cryogenic treatment<\/a> in high-alloy grades.<\/li>\n\n\n\n<li><b>Decarburization<\/b> Comes from non-neutral atmospheres; protective atmospheres or <a href=\"https:\/\/aobosteel.com\/tool-steel-vacuum-heat-treatment\/\">vacuum furnaces<\/a> help.<\/li>\n\n<\/ul>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group htg-validation is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"htg-note-p wp-block-paragraph\">Aobo Steel supplies tool steel in the annealed condition, ready for you to machine and heat treat. The <a href=\"https:\/\/aobosteel.com\/tool-steel-heat-treatment-temperature-ranges\/\">process ranges here<\/a> are drawn from established metallurgical standards, international grade data and long-term industry practice, and reflect real operational feedback from forging, die-making and production users. Heat treatment itself is carried out on your side, so this guidance is offered as a reference to support that work. Because tool performance comes from many factors, with heat treatment just one stage whose outcome is further shaped by furnace control, part geometry and quench, these ranges are best read as a starting point and confirmed for your own parts.<\/p>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Heat treatment guidance for tool steel Cold WorkWear-resistant grades for blanking, forming and cutting at room temperature. D21.2379 \/ SKD11 High-carbon high-chromium cold-work steel. Air hardening keeps distortion low while delivering excellent wear resistance for long production runs. Austenitize995\u20131030\u00b0C QuenchAir Working58\u201360 HRC D31.2080 \/ SKD1 High-wear cold-work steel for long-run blanking and forming. Oil hardening [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"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":"","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-11825","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - 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