{"id":1166,"date":"2026-09-15T10:21:02","date_gmt":"2026-09-15T10:21:02","guid":{"rendered":"https:\/\/bpsteel.in\/?page_id=1166"},"modified":"2026-09-18T09:22:22","modified_gmt":"2026-09-18T09:22:22","slug":"p20-high-hard","status":"publish","type":"page","link":"https:\/\/bpsteel.in\/index.php\/p20-high-hard\/","title":{"rendered":"P20 High Hard"},"content":{"rendered":"\t\t
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P20 High Hard \/ 1.2378<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Overview<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1.2378 is a high-alloyed chromium-vanadium-molybdenum cold-work tool steel<\/strong> offering very high wear resistance and high cutting performance. SIHARD 2378, for example, is designated 1.2378 \/ X220CrVMo12-2 and is used for demanding cold-work applications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Chemical Compostion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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C<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Si<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Mn<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Cr<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Mo<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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V<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Ni<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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P\/S<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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0.35 – 0.40<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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0.20 – 0.40<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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1.40 – 1.60<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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1.80 – 2.10<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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0.15 – 0.25<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2.00 – 2.30<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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0.90 – 1.20<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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< 0.035<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Heat Treatment<\/span><\/h3><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  • Soft annealing: approximately 820\u2013850\u00b0C<\/span><\/li>
  • Stress relieving: approximately 650\u00b0C<\/span><\/li>
  • Hardening: approximately 1070\u20131100\u00b0C<\/span><\/li>
  • Air or warm-bath quenching<\/li>
  • Tempering according to required hardness<\/li><\/ul>

    SIHARD 2378 data gives approximately 63\u201364 HRC after quenching.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Mechanical Properties<\/span><\/h3><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    • Hardened hardness: approximately 60\u201364 HRC<\/li>
    • Very high wear resistance<\/li>
    • High cutting performance<\/li>
    • High compressive strength<\/li>
    • Good dimensional stability<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      Equivalent Grades<\/span><\/h3><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      • DIN:<\/span> 1.2378<\/li>
      • DIN:<\/span> X220CrVMo12-2<\/li>
      • AISI:<\/span> D7* \/ equivalent group rather than a strict one-to-one equivalence<\/li>
      • Proprietary equivalents include OCR12V2 \/ SIHARD 2378<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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        Applications<\/span><\/h3><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        • Cutting tools<\/li>
        • Punches and dies<\/li>
        • Fine blanking<\/li>
        • Sheet-metal tooling<\/li>
        • Slitting and cutting tools<\/li>
        • Plastic-processing tools<\/li>
        • Wear-resistant components<\/li>
        • Transformer\/dynamo sheet processing tools<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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          Available Forms<\/span><\/h3><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          • Round bars<\/li>
          • Flats<\/li>
          • Plates<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

            P20 High Hard \/ 1.2378 Overview 1.2378 is a high-alloyed chromium-vanadium-molybdenum cold-work tool steel offering very high wear resistance and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-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":"","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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","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-1166","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/pages\/1166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/comments?post=1166"}],"version-history":[{"count":39,"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/pages\/1166\/revisions"}],"predecessor-version":[{"id":1750,"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/pages\/1166\/revisions\/1750"}],"wp:attachment":[{"href":"https:\/\/bpsteel.in\/index.php\/wp-json\/wp\/v2\/media?parent=1166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}