{"id":9918,"date":"2025-08-27T10:04:45","date_gmt":"2025-08-27T02:04:45","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9918"},"modified":"2025-12-21T19:26:45","modified_gmt":"2025-12-21T11:26:45","slug":"4cr3mo3siv-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/4cr3mo3siv-tool-steel\/","title":{"rendered":"4Cr3Mo3SiV Hot 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-4cr3mo3siv-hot-work-tool-steel\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">4Cr3Mo3SiV Hot 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><a href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel\/\"><\/a><\/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 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry Now<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">4Cr3Mo3SiV is the designation under China&#8217;s GB\/T standard, and its equivalent steels are ASTM\/<a href=\"https:\/\/www.steel.org\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">AISI<\/mark><\/a> <a href=\"https:\/\/aobosteel.com\/ko\/h10-tool-steel\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">H10<\/mark><\/a> in the United States, JIS SKD7 in Japan, DIN 1.2365 in Germany, and 32CrMoV12-28. 4Cr3Mo3SiV is a medium-alloy hot work tool steel. It is designed with a good balance of strength, toughness, and wear resistance at elevated temperatures. Compared to <a href=\"https:\/\/aobosteel.com\/ko\/4cr5mosiv1-tool-steel\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">4Cr5MoSiV1<\/mark><\/a> (<a href=\"https:\/\/aobosteel.com\/ko\/h13-tool-steel\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">H13<\/mark><\/a>) steel, it has higher thermal strength but slightly lower impact toughness. Its thermal stability surpasses both H13 and 3Cr2W8V (<a href=\"https:\/\/aobosteel.com\/ko\/h21-tool-steel\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">H21<\/mark><\/a>) steels.<\/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><strong>C<\/strong><\/td><td><strong>Si<\/strong><\/td><td><strong>Mn<\/strong><\/td><td><strong>Cr<\/strong><\/td><td><strong>Mo<\/strong><\/td><td><strong>V<\/strong><\/td><td><strong>P<\/strong><\/td><td><strong>S<\/strong><\/td><\/tr><tr><td>0.35 &#8211; 0.45<\/td><td>0.80 &#8211; 1.20<\/td><td>0.25 &#8211; 0.70<\/td><td>3.00 &#8211; 3.75<\/td><td>2.00 &#8211; 3.00<\/td><td>0.25 &#8211; 0.75<\/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-temperatures-of-4cr3mo3siv\">2. Critical Point Temperatures of 4Cr3Mo3SiV<\/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\u2083<\/strong><\/td><td><strong>Ms<\/strong><\/td><\/tr><tr><td>Temperature (approximate value)\/\u00b0C<\/td><td>820<\/td><td>900<\/td><td>310<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-4cr3mo3siv-steel-forging-process-specification\">3. 4Cr3Mo3SiV Steel Forging Process Specification<\/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\/\u00b0C<\/strong><\/td><td><strong>Initial Forging Temperature\/\u00b0C<\/strong><\/td><td><strong>Final Forging Temperature\/\u00b0C<\/strong><\/td><td><strong>Cooling Method<\/strong><\/td><\/tr><tr><td>Steel Ingot<\/td><td>1160 ~ 1180<\/td><td>1040 ~ 1170<\/td><td>\u2265900<\/td><td>Slow Cooling<\/td><\/tr><tr><td>Steel Billet<\/td><td>1150 ~ 1170<\/td><td>1120 ~ 1140<\/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-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-1024x1024.avif\" alt=\"4Cr3Mo3SiV\" class=\"wp-image-9925\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-1024x1024.avif 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-768x768.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-1536x1536.avif 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-2048x2048.avif 2048w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/4Cr3Mo3SiV-12x12.avif 12w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">4Cr3Mo3SiV 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 obtain the best quotation for 4Cr3Mo3SiV\/H10 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-1781073888000-8717391106\",\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-1781073888000-8717391106\"><\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-heat-treatment-of-4cr3mo3siv\">4. Heat Treatment of 4Cr3Mo3SiV<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4.1 Preheating<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Material<\/strong><\/td><td><strong>Heating Temperature\/\u00b0C<\/strong><\/td><td><strong>Holding Time<\/strong><\/td><td><strong>Isothermal Time<\/strong><\/td><td><strong>Cooling Method<\/strong><\/td><\/tr><tr><td>Bar Stock<\/td><td>860 ~ 880<\/td><td>2h + 1min\/mm<\/td><td>\u2014<\/td><td>Furnace cool to below 500\u00b0C, then air cool<\/td><\/tr><tr><td>Forgings<\/td><td>860 ~ 880<\/td><td>1h + 1min\/mm<\/td><td>730\u00b0C \u00d7 2h + 1min\/mm<\/td><td>Air cool from furnace<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4.2 Quenching<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>First Preheating<\/strong><\/td><td><strong>Second Preheating<\/strong><\/td><td><strong>Austenitizing Temperature\/\u00b0C<\/strong><\/td><td><strong>Cooling Medium<\/strong><\/td><td><strong>Hardness HRC<\/strong><\/td><\/tr><tr><td>550\u00b0C uniform heating<\/td><td>880\u00b0C uniform heating<\/td><td>1030 \u00b1 10<\/td><td>Oil<\/td><td>55 ~ 56<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4.3 Tempering<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>First Tempering<\/strong><\/td><td><strong>Second Tempering<\/strong><\/td><td><strong>Hardness HRC<\/strong><\/td><\/tr><tr><td>610\u00b0C \u00d7 2h<\/td><td>615\u00b0C \u00d7 2h<\/td><td>47.0 ~ 49.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-5-mechanical-properties-of-4cr3mo3siv\">5. Mechanical Properties of 4Cr3Mo3SiV<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">4Cr3Mo3SiV contains many carbide-forming elements such as Cr, Mo, and V. It has good toughness and exhibits high hardness, thermal strength, and wear resistance at operating temperatures of 500~600 \u00b0C. This steel has good hardenability, resistance to tempering, and thermal stability, resulting in very high toughness, high impact toughness, and fracture toughness, as well as good oxidation resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5.1 Room Temperature Mechanical Properties<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Specimen Hardness HRC<\/strong><\/td><td><strong>R<sub>m<\/sub>\/MPa<\/strong><\/td><td><strong>R<sub>eL<\/sub>\/MPa<\/strong><\/td><td><strong>A (%)<\/strong><\/td><td><strong>Z (%)<\/strong><\/td><td><strong>KU\/J<\/strong><\/td><td><strong>K<sub>Ic<\/sub>\/MPa\u00b7<sup>1\/2<\/sup><\/strong><\/td><\/tr><tr><td>47 ~ 49<\/td><td>1559<\/td><td>1356<\/td><td>10.1<\/td><td>34.1<\/td><td>16.9<\/td><td>41.2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5.2 High-Temperature Mechanical Properties<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Temperature\/\u00b0C<\/strong><\/td><td><strong>R<sub>m<\/sub>\/MPa<\/strong><\/td><td><strong><strong>R<sub>eL<\/sub><\/strong>\/MPa<\/strong><\/td><td><strong>A (%)<\/strong><\/td><td><strong>Z (%)<\/strong><\/td><td><strong>KU\/J<\/strong><\/td><td><strong>Vickers Hardness HV<\/strong><\/td><\/tr><tr><td>300<\/td><td>1349<\/td><td>1218<\/td><td>10.4<\/td><td>29.3<\/td><td>20.5<\/td><td>471.5<\/td><\/tr><tr><td>600<\/td><td>888<\/td><td>779<\/td><td>20.3<\/td><td>69.8<\/td><td>25.2<\/td><td>409.0<\/td><\/tr><tr><td>650<\/td><td>651<\/td><td>596<\/td><td>19.5<\/td><td>60.7<\/td><td>20.9<\/td><td>360.5<\/td><\/tr><tr><td>700<\/td><td>298<\/td><td>261<\/td><td>31.2<\/td><td>81.6<\/td><td>23.2<\/td><td>278.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5.3 Thermal Stability<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Tempering Temperature (\u00b0C)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Holding Time (h)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Hardness (HRC)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"9\">620<\/td><td class=\"has-text-align-center\" data-align=\"center\">0<\/td><td class=\"has-text-align-center\" data-align=\"center\">47.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">44.1<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\">43.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td class=\"has-text-align-center\" data-align=\"center\">42.2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">41.3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">11.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">38.6<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">14.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">37.6<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">17.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">35.4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">21<\/td><td class=\"has-text-align-center\" data-align=\"center\">33.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"8\">660<\/td><td class=\"has-text-align-center\" data-align=\"center\">0<\/td><td class=\"has-text-align-center\" data-align=\"center\">46.9<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">40.3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">34.9<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">33.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">31.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><td class=\"has-text-align-center\" data-align=\"center\">29.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">29.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">12<\/td><td class=\"has-text-align-center\" data-align=\"center\">26.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"6\">700<\/td><td class=\"has-text-align-center\" data-align=\"center\">0<\/td><td class=\"has-text-align-center\" data-align=\"center\">46.6<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">33.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">29<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">28.3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">25.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5.4 Fatigue Performance<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Test Condition<\/strong><\/td><td><strong>20\u00b0C \u2194 650\u00b0C (1000 cycles)<\/strong><\/td><td><strong>20\u00b0C \u2194 700\u00b0C (1000 cycles)<\/strong><\/td><\/tr><tr><td>47 ~ 49HRC<\/td><td>Grade 7.6<\/td><td>Grade 15.6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-6-applications-of-4cr3mo3siv\">6. Applications of 4Cr3Mo3SiV<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">4Cr3Mo3SiV steel is widely used for various hot work tooling and components:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hot Extrusion Dies:<\/strong> Especially for core rods, liners, and mandrels.<\/li>\n\n\n\n<li><strong>Hot Forging Dies:<\/strong> For thermal forging, precision forging, roll forging, and hammer forging dies.<\/li>\n\n\n\n<li><strong>Hot Punching Dies:<\/strong> Used for hot punches and hot pressing dies.<\/li>\n\n\n\n<li><strong>Die-Casting Molds:<\/strong> Suitable for aluminum, magnesium, and copper alloy die-casting molds.<\/li>\n\n\n\n<li><strong>Other Applications:<\/strong> Hot cutting tools, pressure tools, and components requiring good impact resistance and hardness at elevated temperatures. It can replace 3Cr2W8V in many applications.<\/li>\n<\/ul>\n\n\n\n<!-- 4Cr3Mo3SiV Tool Steel CTA Block - Start -->\n<!-- This block is self-contained and will not affect other styles on your page. Width is now responsive to the parent container. -->\n<div style=\"background-color: #ffffff; border: 1px solid #e0e0e0; border-radius: 8px; padding: 2.5rem; text-align: center; margin: 2rem 0; font-family: Arial, Helvetica, sans-serif; box-shadow: 0 4px 12px rgba(0,0,0,0.05);\">\n    \n    <!-- Headline: Grabs attention and highlights expertise. -->\n    <h2 style=\"font-size: 2rem; font-weight: 700; color: #1a202c; margin-top: 0; margin-bottom: 1rem; line-height: 1.2;\">\n        Get a Competitive Quote for 4Cr3Mo3SiV Tool Steel\n    <\/h2>\n    \n    <!-- Sub-headline \/ Value Proposition: Builds trust and explains why they should contact you. -->\n    <p style=\"font-size: 1.1rem; color: #4a5568; margin-bottom: 2rem; line-height: 1.6;\">\n        With over 20 years of forging expertise, Aobo Steel is your trusted partner for high-performance 4Cr3Mo3SiV tool steel. We provide not just materials, but solutions. Leverage our deep industry knowledge and reliable supply chain for your project&#8217;s success.\n    <\/p>\n    \n    <!-- Call-to-Action Instruction: A clear, direct instruction for the user. -->\n    <p style=\"font-size: 1.2rem; font-weight: 600; color: #2d3748; background-color: #edf2f7; border-radius: 6px; padding: 0.75rem 1.5rem; display: inline-block;\">\n        &#9993; Contact us by filling out the form below.\n    <\/p>\n    \n<\/div>\n<!-- 4Cr3Mo3SiV Tool Steel CTA Block - End -->\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-1781073888000-4706891993\",\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-1781073888000-4706891993\"><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>4Cr3Mo3SiV is the designation under China&#8217;s GB\/T standard, and its equivalent steels are ASTM\/AISI H10 in the United States, JIS SKD7 in Japan, DIN 1.2365 in Germany, and 32CrMoV12-28. 4Cr3Mo3SiV is a medium-alloy hot work tool steel. It is designed with a good balance of strength, toughness, and wear resistance at elevated temperatures. 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