{"id":10016,"date":"2025-08-30T14:43:41","date_gmt":"2025-08-30T06:43:41","guid":{"rendered":"https:\/\/aobosteel.com\/"},"modified":"2025-12-12T14:55:20","modified_gmt":"2025-12-12T06:55:20","slug":"9crwmn-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/9crwmn-steel\/","title":{"rendered":"9CrWMn Cold Work Tool Steel"},"content":{"rendered":"<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"337\" class=\"wp-block-cover__image-background wp-image-7233 size-large\" alt=\"\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-300x99.webp 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-768x253.webp 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1536x506.webp 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-18x6.webp 18w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#4e4b40\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<h1 class=\"wp-block-heading\" id=\"h-9crwmn-cold-work-tool-steel\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">9CrWMn Cold Work Tool Steel<\/mark><\/h1>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-aobo-steel-trusted-global-tool-steel-supplier\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">AOBO STEEL \u2013 Trusted Global Tool Steel Supplier<\/mark><\/h3>\n\n\n\n<div class=\"wp-block-buttons hs-cta-trigger-button hs-cta-trigger-button-230288465624 is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry Now<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">9CrWMn is a widely used low-alloy cold work tool steel, designated under China&#8217;s national standard (GB\/T 1299). Developed from CrWMn steel, its composition has been adjusted to enhance toughness and reduce heat treatment distortion. Its equivalent grades include American <a href=\"https:\/\/www.steel.org\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">AISI<\/mark><\/a>\/ASTM <a href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">O1<\/mark><\/a>, German DIN 1.2510, and Japanese JIS SKS3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-1-chemical-composition-gb-t-1299-2000\">1. Chemical Composition(GB \/ T 1299\u20142000)<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>C<\/td><td>Si<\/td><td>Mn<\/td><td>Cr<\/td><td>W<\/td><td>P<\/td><td>S<\/td><\/tr><tr><td>0.85 ~ 0.95<\/td><td>\u22640.40<\/td><td>0.90 ~ 1.20<\/td><td>0.50 ~ 0.80<\/td><td>0.50 ~ 0.80<\/td><td>\u22640.030<\/td><td>\u22640.030<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-critical-point-temperature-of-9crwmn-steel\">2. Critical Point Temperature of 9CrWMn Steel<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Critical Point<\/strong><\/td><td><strong>Ac\u2081<\/strong><\/td><td><strong>Ac\u2091\u2098<\/strong><\/td><td><strong>Ar\u2081<\/strong><\/td><td><strong>Ms<\/strong><\/td><\/tr><tr><td>Temperature\/\u2103<\/td><td>750<\/td><td>900<\/td><td>700<\/td><td>205<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-hot-forging-process-specification-for-9crwmn-steel\">3. Hot Forging Process Specification for 9CrWMn Steel<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Item<\/strong><\/td><td><strong>Heating Temperature\/\u2103<\/strong><\/td><td><strong>Initial Forging Temperature\/\u2103<\/strong><\/td><td><strong>Final Forging Temperature\/\u2103<\/strong><\/td><td><strong>Cooling Method<\/strong><\/td><\/tr><tr><td>Steel Ingot<\/td><td>1150 ~ 1200<\/td><td>1100 ~ 1150<\/td><td>\u2265850<\/td><td>Slow Cooling<\/td><\/tr><tr><td>Steel Billet<\/td><td>1100 ~ 1150<\/td><td>1050 ~ 1100<\/td><td>\u2265850<\/td><td>Slow Cooling<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"818\" height=\"818\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn.avif\" alt=\"9CrWMn\" class=\"wp-image-10017\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn.avif 818w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-768x768.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-12x12.avif 12w\" sizes=\"auto, (max-width: 818px) 100vw, 818px\" \/><figcaption class=\"wp-element-caption\">9CrWMn Steel<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Please complete the following contact form to receive the most competitive quotation for 9CrWMn steel.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-leadin-hubspot-form-block\">\n\t\t\t\t\t\t<script>\n\t\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\t\tportalId: 242461771,\n\t\t\t\t\t\t\t\t\tformId: \"1f7a4dcb-eb56-45e5-bd4f-5921cbf714c1\",\n\t\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1781065726000-3635862586\",\n\t\t\t\t\t\t\t\t\tregion: \"na2\",\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t})});\n\t\t\t\t\t\t<\/script>\n\t\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1781065726000-3635862586\"><\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-heat-treatment-for-9crwmn-steel\">4. Heat Treatment for 9CrWMn Steel<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-1-isothermal-annealing-process-of-9crwmn-steel-after-forging\">4.1 Isothermal Annealing Process of 9CrWMn Steel After Forging<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Process<\/strong><\/td><td><strong>Heating Temperature\/\u2103<\/strong><\/td><td><strong>Holding Time\/h<\/strong><\/td><td><strong>Isothermal Temperature\/\u2103<\/strong><\/td><td><strong>Isothermal Holding Time\/h<\/strong><\/td><td><strong>Cooling Method<\/strong><\/td><td><strong>Hardness HBW<\/strong><\/td><\/tr><tr><td>Isothermal Annealing after forging<\/td><td>780 ~ 800<\/td><td>2 ~ 3<\/td><td>670 ~ 720<\/td><td>2 ~ 3<\/td><td>Furnace cool to below 550\u2103, then air cool<\/td><td>197 ~ 241<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-2-quenching\">4.2 Quenching<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2460 Recommended Quenching Specification for 9CrWMn Steel<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Preheat Temperature\/\u2103<\/strong><\/td><td><strong>Heating Temperature\/\u2103<\/strong><\/td><td><strong>Cooling Medium<\/strong><\/td><td><strong>Medium Temperature\/\u2103<\/strong><\/td><td><strong>Cool to<\/strong><\/td><td><strong>Hardness HRC<\/strong><\/td><\/tr><tr><td>650<\/td><td>820 ~ 840<\/td><td>Oil<\/td><td>20 ~ 60<\/td><td>Oil temperature<\/td><td>64 ~ 66<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2461 Isothermal Quenching Process for 9CrWMn Steel<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Heating Temperature\/\u2103<\/strong><\/td><td><strong>Isothermal Temperature\/\u2103<\/strong><\/td><td><strong>Isothermal Time\/h<\/strong><\/td><td><strong>Quenching Microstructure<\/strong><\/td><\/tr><tr><td>800 ~ 840<\/td><td>260 ~ 300<\/td><td>\u22641<\/td><td>The matrix is martensite + retained austenite + residual carbides, with a suitable amount of lower bainite distributed on the high-strength martensite matrix.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-3-super-fining-treatment-process-for-9crwmn-steel\">4.3 Super-fining Treatment Process for 9CrWMn Steel<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The purpose of ultra-fine processing is to obtain ultra-fine carbides and refined grains, hence it is also known as the dual-refining process. This process has been widely adopted in the mold manufacturing industry, significantly extending mold service life.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Process Stage<\/strong><\/td><td><strong>Solution Quenching<\/strong><\/td><td><strong>Final Treatment<\/strong><\/td><\/tr><tr><td><strong>Process Parameters<\/strong><\/td><td>The temperature is 1050\u00b0C, oil cooling or isothermal treatment at about 300\u00b0C, and the tempering temperature is 700~720 \u00b0C.<\/td><td>Quenching temperature is 800 ~ 820\u00b0C (should be 20 ~ 40\u00b0C lower than the conventional quenching temperature).<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-4-tempering\">4.4 Tempering<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2460 Recommended Tempering Specification for 9CrWMn Steel<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Heating Temperature\/\u2103<\/strong><\/td><td><strong>Heating Medium<\/strong><\/td><td><strong>Cooling Medium<\/strong><\/td><td><strong>Hardness HRC<\/strong><\/td><\/tr><tr><td>160 ~ 180<\/td><td>Oil<\/td><td>Air<\/td><td>61<\/td><\/tr><tr><td>170 ~ 230<\/td><td>Oil<\/td><td>Air<\/td><td>60 ~ 62<\/td><\/tr><tr><td>230 ~ 275<\/td><td>Oil or alkaline water<\/td><td>Air<\/td><td>56 ~ 60<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2461 Relationship between Tempering Temperature and Hardness of 9CrWMn Steel<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Tempering Temperature\/\u2103<\/strong><\/td><td><strong>100<\/strong><\/td><td><strong>200<\/strong><\/td><td><strong>300<\/strong><\/td><td><strong>400<\/strong><\/td><td><strong>500<\/strong><\/td><td><strong>550<\/strong><\/td><td><strong>600<\/strong><\/td><td><strong>650<\/strong><\/td><\/tr><tr><td><strong>Hardness HRC<\/strong><\/td><td>62<\/td><td>60<\/td><td>56<\/td><td>52<\/td><td>47<\/td><td>43<\/td><td>39<\/td><td>35<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Note: Quenched in oil at 830\u00b0C, then tempered fo<\/em>r 2 hours<em>.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-5-mechanical-properties\">5. Mechanical Properties<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">9CrWMn steel is a low-alloy cold-work tool steel with high hardenability. The carbides formed by the W element constitute the hardening phase in the steel, resulting in high hardness and wear resistance after quenching and low-temperature tempering, while maintaining good toughness. This steel exhibits maximum bending strength and toughness when quenched at 800\u00b0C. Impact toughness reaches its lowest value when tempered around 300\u00b0C; therefore, tempering at this temperature should be avoided. The steel is sensitive to the formation of network carbide. Thus, appropriate forging should be performed during machining, and carbide refinement treatment is recommended.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-6-applications\">6. Applications<\/h2>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"818\" height=\"818\" data-id=\"10017\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn.avif\" alt=\"9CrWMn\" class=\"wp-image-10017\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn.avif 818w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-768x768.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/9CrWMn-12x12.avif 12w\" sizes=\"auto, (max-width: 818px) 100vw, 818px\" \/><figcaption class=\"wp-element-caption\">9CrWMn tool steel<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" data-id=\"5700\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel.avif\" alt=\"o1 tool steel\" class=\"wp-image-5700\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">O1 tool steel<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">9CrWMn steel exhibits minimal distortion during quenching, particularly after undergoing carbide refinement treatment, and possesses high comprehensive mechanical properties. It is primarily used for manufacturing various gauges, measuring tools, and mold components such as punching dies with large cross-sectional dimensions, complex shapes, and stringent requirements for minimal quenching distortion\u2014applications where carbon tool steel cannot meet the specifications.<\/p>\n\n\n\n<div class=\"wp-block-group is-vertical is-content-justification-stretch is-layout-flex wp-container-core-group-is-layout-fb128502 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-get-a-competitive-quote-for-9crwmn-tool-steel\">Get a Competitive Quote for 9CrWMn Tool Steel<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">With over 20 years of forging expertise, Aobo Steel is your trusted partner for high-performance 9CrWMn tool steel. We provide not just materials, but solutions. Leverage our deep industry knowledge and reliable supply chain for your project&#8217;s success.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">\u2709 Contact us by filling out the form below.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-leadin-hubspot-form-block\">\n\t\t\t\t\t\t<script>\n\t\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\t\tportalId: 242461771,\n\t\t\t\t\t\t\t\t\tformId: \"1f7a4dcb-eb56-45e5-bd4f-5921cbf714c1\",\n\t\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1781065726000-4898871400\",\n\t\t\t\t\t\t\t\t\tregion: \"na2\",\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t})});\n\t\t\t\t\t\t<\/script>\n\t\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1781065726000-4898871400\"><\/div><\/div>\n\n\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\\\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Forged 9CrWMn \\\/ AISI O1 \\\/ 1.2510 Tool Steel Round & Flat Bar\",\n    \"image\": \"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/9CrWMn.avif\",\n    \"description\": \"High-quality 9CrWMn (Low Deformation) Oil Hardening Tool Steel. Equivalent performance to AISI O1 \\\/ DIN 1.2510. Ideal for complex measuring tools and dies. Forged and processed at Aobo Steel factory with precise dimensional control.\",\n    \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Aobo Steel\"\n    },\n    \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Aobo Steel\"\n    },\n    \"sku\": \"AOBO-9CrWMn-Bar\",\n    \"mpn\": \"AOBO-9CrWMn-MFG\",\n    \"offers\": {\n        \"@type\": \"AggregateOffer\",\n        \"url\": \"https:\\\/\\\/aobosteel.com\\\/9crwmn-steel\\\/\",\n        \"priceCurrency\": \"USD\",\n        \"lowPrice\": \"1000\",\n        \"highPrice\": \"1300\",\n        \"offerCount\": \"5\",\n        \"availability\": \"https:\\\/\\\/schema.org\\\/InStock\",\n        \"itemCondition\": \"https:\\\/\\\/schema.org\\\/NewCondition\",\n        \"seller\": {\n            \"@type\": \"Organization\",\n            \"name\": \"Aobo Steel\",\n            \"telephone\": \"+86 180 6294 5370\",\n            \"address\": {\n                \"@type\": \"PostalAddress\",\n                \"streetAddress\": \"No. 141 Huangjiawan, Shileishan Village, Xisai District\",\n                \"addressLocality\": \"Huangshi City\",\n                \"addressRegion\": \"Hubei Province\",\n                \"postalCode\": \"435000\",\n                \"addressCountry\": \"CN\"\n            }\n        }\n    }\n}<\/script>","protected":false},"excerpt":{"rendered":"<p>9CrWMn is a widely used low-alloy cold work tool steel, designated under China&#8217;s national standard (GB\/T 1299). Developed from CrWMn steel, its composition has been adjusted to enhance toughness and reduce heat treatment distortion. Its equivalent grades include American AISI\/ASTM O1, German DIN 1.2510, and Japanese JIS SKS3. 1. Chemical Composition(GB \/ T 1299\u20142000) C [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10017,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"landing-page","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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-10016","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>9CrWMn Cold Work Tool Steel | AoboSteel<\/title>\n<meta name=\"description\" content=\"9CrWMn is a low-alloy cold work tool steel, designated under China&#039;s national standard (GB\/T 1299). The equivalent grade is AISI O1 steel.\" \/>\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\/9crwmn-steel\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"9CrWMn Cold Work Tool Steel\" \/>\n<meta property=\"og:description\" content=\"9CrWMn is a low-alloy cold work tool steel, designated under China&#039;s national standard (GB\/T 1299). 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