{"id":9564,"date":"2025-08-05T16:03:55","date_gmt":"2025-08-05T08:03:55","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9564"},"modified":"2026-05-16T08:01:08","modified_gmt":"2026-05-16T00:01:08","slug":"tool-steels","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/tool-steels\/","title":{"rendered":"Cat\u00e1logo de aceros para herramientas | Proveedor de aceros D2, H13, H11, M2 y P20 | Aobo Steel"},"content":{"rendered":"\n<style>\n  .aobo-catalog-page {\n    --aobo-blue: #0c56d0;\n    --aobo-blue-dark: #073b8e;\n    --aobo-blue-soft: #eaf2ff;\n    --aobo-blue-line: #c9dcff;\n    --aobo-border: #d7e5fb;\n    --aobo-text: #203044;\n    --aobo-muted: #617087;\n    --aobo-orange: #f59b23;\n    --aobo-white: #ffffff;\n    --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n    font-family: Arial, Helvetica, sans-serif;\n    color: var(--aobo-text);\n    background: transparent;\n    padding: 0;\n    box-sizing: border-box;\n  }\n\n  .aobo-catalog-page * {\n  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}\n\n  .aobo-cta p {\n    color: rgba(255, 255, 255, 0.92) !important;\n    font-size: 16px;\n    line-height: 1.65;\n    max-width: 850px;\n    margin: 0 0 22px;\n  }\n\n  .aobo-cta-actions {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 14px;\n  }\n\n  .aobo-cta .aobo-btn-primary {\n    background: #fff;\n    color: var(--aobo-blue);\n    box-shadow: none;\n  }\n\n  .aobo-cta .aobo-btn-primary:hover {\n    background: #f5f8ff;\n    color: var(--aobo-blue-dark);\n  }\n\n  .aobo-cta .aobo-btn-secondary {\n    background: rgba(255, 255, 255, 0.08);\n    border-color: rgba(255, 255, 255, 0.35);\n    color: #fff;\n  }\n\n  .aobo-note {\n    margin-top: 18px;\n    color: var(--aobo-muted);\n    font-size: 14px;\n    line-height: 1.55;\n  }\n\n  @media (max-width: 920px) {\n    .aobo-quick-facts,\n    .aobo-grade-grid,\n    .aobo-supply-list {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .aobo-two-col {\n      grid-template-columns: 1fr;\n    }\n  }\n\n  @media (max-width: 640px) {\n    .aobo-catalog-page {\n      padding: 0;\n    }\n\n    .aobo-hero,\n    .aobo-section,\n    .aobo-cta {\n      padding: 26px 20px;\n      border-radius: 22px;\n    }\n\n    .aobo-quick-facts,\n    .aobo-grade-grid,\n    .aobo-application-grid,\n    .aobo-supply-list {\n      grid-template-columns: 1fr;\n    }\n\n    .aobo-grade-actions {\n      flex-direction: column;\n    }\n\n    .aobo-hero-intro {\n      font-size: 16px;\n    }\n  }\n<\/style>\n\n<section class=\"aobo-catalog-page\">\n  <div class=\"aobo-catalog-wrap\">\n\n    <header class=\"aobo-hero\">\n      <div class=\"aobo-kicker\"><span><\/span>Aobo Steel Tool Steel Supply<\/div>\n      <h1>Tool Steel Catalog<\/h1>\n      <p class=\"aobo-hero-intro\">\n        Aobo Steel supplies tool steel round bar and plate for distributors, stockists, mold material suppliers, and industrial tooling buyers. This catalog helps you find the right grade page by steel family, equivalent grade, and application direction.\n      <\/p>\n\n      <div class=\"aobo-hero-actions\">\n        <a class=\"aobo-btn aobo-btn-primary\" href=\"#aobo-grade-catalog\">View Tool Steel Grades<\/a>\n        <a class=\"aobo-btn aobo-btn-secondary hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Tool Steel Quote<\/a>\n      <\/div>\n\n      <div class=\"aobo-quick-facts\">\n        <div class=\"aobo-fact\">\n          <strong>Supply focus<\/strong>\n          <span>Bulk B2B tool steel supply, not retail small pieces.<\/span>\n        <\/div>\n        <div class=\"aobo-fact\">\n          <strong>Main forms<\/strong>\n          <span>Round bar and plate for machining and tooling production.<\/span>\n        <\/div>\n        <div class=\"aobo-fact\">\n          <strong>Supply condition<\/strong>\n          <span>Usually annealed or soft condition for further processing.<\/span>\n        <\/div>\n        <div class=\"aobo-fact\">\n          <strong>Inspection support<\/strong>\n          <span>MTC and UT can be arranged according to order requirements.<\/span>\n        <\/div>\n      <\/div>\n    <\/header>\n\n    <section class=\"aobo-section\" id=\"aobo-grade-catalog\">\n      <div class=\"aobo-section-header\">\n        <h2>Available Tool Steel Grades<\/h2>\n        <p>\n          Choose a grade below to open the related product page. Each page gives the grade equivalents, supply direction, typical applications, and material information for quotation discussion.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-filter-bar\" aria-label=\"Grade filters\">\n        <button class=\"aobo-filter-btn active\" data-filter=\"all\" type=\"button\">All Grades<\/button>\n        <button class=\"aobo-filter-btn\" data-filter=\"cold-work\" type=\"button\">Cold Work<\/button>\n        <button class=\"aobo-filter-btn\" data-filter=\"hot-work\" type=\"button\">Hot Work<\/button>\n        <button class=\"aobo-filter-btn\" data-filter=\"high-speed\" type=\"button\">High Speed Steel<\/button>\n        <button class=\"aobo-filter-btn\" data-filter=\"plastic-mold\" type=\"button\">Plastic Mold Steel<\/button>\n        <button class=\"aobo-filter-btn\" data-filter=\"gb-standard\" type=\"button\">GB Standard<\/button>\n      <\/div>\n\n      <div class=\"aobo-grade-grid\">\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>D2 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2379 \/ SKD11<\/div>\n          <p>Common choice for blanking dies, forming dies, punches, shear blades, and wear-focused cold work tooling.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/d2-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>D3 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2080 \/ SKD1<\/div>\n          <p>High-carbon, high-chromium cold work grade used where abrasive wear resistance is the main requirement.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/d3-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>D6 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2436 \/ SKD2<\/div>\n          <p>High-carbon, high-chromium cold work steel used for wear-resistant dies and cutting tools.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/d6-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>A2 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2363 \/ SKD12<\/div>\n          <p>Air-hardening cold work steel used when dimensional stability and a balanced wear-toughness profile are required.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/a2-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>O1 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2510 \/ SKS3<\/div>\n          <p>Oil-hardening tool steel for general cold work tools, gauges, knives, and tooling parts requiring good machinability.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/o1-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>O2 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2842<\/div>\n          <p>Oil-hardening cold work grade used for tools that need reliable hardenability and practical machining before hardening.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/o2-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Shock-Resisting Tool Steel<\/div>\n          <h3>S1 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2550<\/div>\n          <p>Shock-resisting tool steel for chisels, punches, impact tools, and tooling parts exposed to sudden loading.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/s1-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Shock-Resisting Tool Steel<\/div>\n          <h3>S7 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2355<\/div>\n          <p>Used for impact tools, punches, and tooling where cracking or chipping is a larger risk than abrasive wear.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/s7-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Cold Work Tool Steel<\/div>\n          <h3>DC53 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">DC53<\/div>\n          <p>Cold work tool steel used when better toughness and dimensional stability are needed compared with conventional D2-type grades.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/dc53-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"cold-work\">\n          <div class=\"aobo-grade-type\">Bearing Steel<\/div>\n          <h3>52100 Bearing Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.3505 \/ 100Cr6 \/ GCr15<\/div>\n          <p>High-carbon chromium bearing steel used for bearing parts, wear components, and precision mechanical parts.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/52100-bearing-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"hot-work\">\n          <div class=\"aobo-grade-type\">Hot Work Tool Steel<\/div>\n          <h3>H10 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2365 \/ SKD7<\/div>\n          <p>Hot work tool steel used in elevated-temperature tooling where heat resistance and toughness are required.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/h10-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"hot-work\">\n          <div class=\"aobo-grade-type\">Hot Work Tool Steel<\/div>\n          <h3>H11 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2343 \/ SKD6<\/div>\n          <p>Hot work steel for die casting, extrusion tooling, hot shear blades, and shock-loaded hot work applications.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/h11-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"hot-work\">\n          <div class=\"aobo-grade-type\">Hot Work Tool Steel<\/div>\n          <h3>H13 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2344 \/ SKD61<\/div>\n          <p>Widely used for aluminum die casting dies, hot forging dies, extrusion dies, and thermal-fatigue tooling.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/h13-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"hot-work\">\n          <div class=\"aobo-grade-type\">Hot Work Tool Steel<\/div>\n          <h3>H21 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2581 \/ SKD5<\/div>\n          <p>Hot work grade for applications requiring stronger hot hardness and wear resistance at elevated temperature.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/h21-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"hot-work\">\n          <div class=\"aobo-grade-type\">Hot Work \/ Tough Tooling Steel<\/div>\n          <h3>L6 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2714 \/ SKT4<\/div>\n          <p>Tough tool steel used for large dies, hot work tooling, and tooling components requiring strength and impact resistance.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/l6-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"high-speed\">\n          <div class=\"aobo-grade-type\">High Speed Steel<\/div>\n          <h3>M2 High Speed Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.3343 \/ SKH51<\/div>\n          <p>General-purpose HSS for drills, milling cutters, cutting tools, punches, and wear parts requiring hot hardness.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/m2-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"high-speed\">\n          <div class=\"aobo-grade-type\">Cobalt High Speed Steel<\/div>\n          <h3>M35 High Speed Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.3243 \/ SKH55<\/div>\n          <p>Cobalt HSS used where cutting temperature is higher and M2 may not provide enough hot hardness.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/m35-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"high-speed\">\n          <div class=\"aobo-grade-type\">Cobalt High Speed Steel<\/div>\n          <h3>M42 High Speed Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.3247 \/ SKH59<\/div>\n          <p>High-performance cobalt HSS for demanding cutting tools where red hardness and wear resistance are critical.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/m42-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"plastic-mold\">\n          <div class=\"aobo-grade-type\">Plastic Mold Steel<\/div>\n          <h3>P20 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2311 \/ 3Cr2Mo<\/div>\n          <p>Plastic mold steel for injection molds, mold bases, and mold components requiring stable machining performance.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/p20-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"plastic-mold\">\n          <div class=\"aobo-grade-type\">Plastic Mold Steel<\/div>\n          <h3>P20+Ni Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">1.2738<\/div>\n          <p>Nickel-modified plastic mold steel used for larger molds where better through-hardness is required.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/p20ni-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>Cr12 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB Cr12<\/div>\n          <p>Chinese cold work tool steel used for wear-resistant dies, punches, and cold work tooling.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/cr12-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>Cr12MoV Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB Cr12MoV<\/div>\n          <p>Common Chinese cold work die steel used for blanking dies, forming dies, punches, and wear tools.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/cr12mov-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>9SiCr Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 9SiCr<\/div>\n          <p>Chinese low-alloy tool steel used for cold work tools, cutting tools, gauges, and wear-resistant tooling parts.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/9sicr-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>Cr12Mo1V1 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB Cr12Mo1V1 \/ D2-type<\/div>\n          <p>Chinese D2-type cold work steel used where wear resistance and dimensional stability are required.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/cr12mo1v1-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>Cr5Mo1V Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB Cr5Mo1V \/ A2-type<\/div>\n          <p>Air-hardening cold work tool steel used for dies and tools requiring stability and balanced performance.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/cr5mo1v-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>6CrW2Si Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 6CrW2Si<\/div>\n          <p>Chinese alloy tool steel used for shear blades, punches, and tools requiring strength and wear resistance.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/6crw2si-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">Bearing \/ GB Steel<\/div>\n          <h3>GCr15 Bearing Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB GCr15 \/ 52100 \/ 1.3505<\/div>\n          <p>High-carbon chromium bearing steel used for bearing parts, wear components, and precision mechanical parts.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/gcr15-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Hot Work Steel<\/div>\n          <h3>4Cr5MoSiV1 Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 4Cr5MoSiV1 \/ H13-type<\/div>\n          <p>Chinese hot work tool steel used for die casting, extrusion, forging dies, and thermal-fatigue tooling.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/4cr5mosiv1-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Hot Work Steel<\/div>\n          <h3>4Cr5MoSiV Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 4Cr5MoSiV \/ H11-type<\/div>\n          <p>Chinese hot work tool steel used where hot strength, toughness, and thermal stability are required.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/4cr5mosiv-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>5CrNiMo Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 5CrNiMo<\/div>\n          <p>Chinese hot work die steel used for forging dies and tooling components requiring toughness and impact resistance.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/5crnimo-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Tool Steel<\/div>\n          <h3>9CrWMn Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 9CrWMn \/ O1-type<\/div>\n          <p>Chinese low-alloy cold work tool steel used for gauges, dies, punches, and tools needing low deformation.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/9crwmn-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Standard Hot Work Steel<\/div>\n          <h3>5CrMnMo Tool Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 5CrMnMo<\/div>\n          <p>Chinese hot work die steel used for forging dies and hot tooling requiring toughness and strength.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/5crmnmo-tool-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-category=\"gb-standard\">\n          <div class=\"aobo-grade-type\">GB Stainless Tool Steel<\/div>\n          <h3>9Cr18Mo Stainless Steel<\/h3>\n          <div class=\"aobo-equivalent\">GB 9Cr18Mo \/ 440C-type<\/div>\n          <p>High-carbon martensitic stainless steel used for wear parts, bearing-related parts, and corrosion-resisting tooling.<\/p>\n          <div class=\"aobo-grade-actions\">\n            <a class=\"aobo-grade-link\" href=\"https:\/\/aobosteel.com\/9cr18mo-stainless-steel\/\">View Details<\/a>\n            <a class=\"aobo-grade-rfq hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <\/div>\n        <\/article>\n\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <div class=\"aobo-section-header\">\n        <h2>Tool Steel Grades by Category<\/h2>\n        <p>\n          This table is designed for fast scanning. Open the grade page when you already know the steel family or equivalent grade.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Category<\/th>\n              <th>Grade<\/th>\n              <th>Equivalent Grades<\/th>\n              <th>Typical Application Direction<\/th>\n              <th>Product Page<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Cold Work Tool Steel<\/td><td>D2<\/td><td>1.2379 \/ SKD11<\/td><td>Blanking dies, forming dies, punches, shear blades<\/td><td><a href=\"https:\/\/aobosteel.com\/d2-tool-steel\/\">View D2<\/a><\/td><\/tr>\n            <tr><td>Cold Work Tool Steel<\/td><td>D3<\/td><td>1.2080 \/ SKD1<\/td><td>High-wear cold work tools, drawing dies, blanking tools<\/td><td><a href=\"https:\/\/aobosteel.com\/d3-tool-steel\/\">View D3<\/a><\/td><\/tr>\n            <tr><td>Cold Work Tool Steel<\/td><td>D6<\/td><td>1.2436 \/ SKD2<\/td><td>Wear-resistant cold work dies and cutting tools<\/td><td><a href=\"https:\/\/aobosteel.com\/d6-tool-steel\/\">View D6<\/a><\/td><\/tr>\n            <tr><td>Cold Work Tool Steel<\/td><td>A2<\/td><td>1.2363 \/ SKD12<\/td><td>Air-hardening cold work tools, gauges, forming dies<\/td><td><a href=\"https:\/\/aobosteel.com\/a2-tool-steel\/\">View A2<\/a><\/td><\/tr>\n            <tr><td>Cold Work Tool Steel<\/td><td>O1<\/td><td>1.2510 \/ SKS3<\/td><td>General cold work tools, gauges, knives, punches<\/td><td><a href=\"https:\/\/aobosteel.com\/o1-tool-steel\/\">View O1<\/a><\/td><\/tr>\n            <tr><td>Cold Work Tool Steel<\/td><td>O2<\/td><td>1.2842<\/td><td>Oil-hardening cold work tools and general tooling parts<\/td><td><a href=\"https:\/\/aobosteel.com\/o2-tool-steel\/\">View O2<\/a><\/td><\/tr>\n            <tr><td>Shock-Resisting Tool Steel<\/td><td>S1<\/td><td>1.2550<\/td><td>Chisels, punches, shock-loaded tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/s1-tool-steel\/\">View S1<\/a><\/td><\/tr>\n            <tr><td>Shock-Resisting Tool Steel<\/td><td>S7<\/td><td>1.2355<\/td><td>Impact tools, punches, tools exposed to chipping risk<\/td><td><a href=\"https:\/\/aobosteel.com\/s7-tool-steel\/\">View S7<\/a><\/td><\/tr>\n            <tr><td>Cold Work Tool Steel<\/td><td>DC53<\/td><td>DC53<\/td><td>Cold work dies requiring toughness and dimensional stability<\/td><td><a href=\"https:\/\/aobosteel.com\/dc53-tool-steel\/\">View DC53<\/a><\/td><\/tr>\n            <tr><td>Bearing Steel<\/td><td>52100<\/td><td>1.3505 \/ 100Cr6 \/ GCr15<\/td><td>Bearing parts, precision wear components<\/td><td><a href=\"https:\/\/aobosteel.com\/52100-bearing-steel\/\">View 52100<\/a><\/td><\/tr>\n            <tr><td>Hot Work Tool Steel<\/td><td>H10<\/td><td>1.2365 \/ SKD7<\/td><td>Hot work tools and elevated-temperature tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/h10-tool-steel\/\">View H10<\/a><\/td><\/tr>\n            <tr><td>Hot Work Tool Steel<\/td><td>H11<\/td><td>1.2343 \/ SKD6<\/td><td>Die casting dies, extrusion tools, hot shear blades<\/td><td><a href=\"https:\/\/aobosteel.com\/h11-tool-steel\/\">View H11<\/a><\/td><\/tr>\n            <tr><td>Hot Work Tool Steel<\/td><td>H13<\/td><td>1.2344 \/ SKD61<\/td><td>Aluminum die casting dies, hot forging dies, extrusion dies<\/td><td><a href=\"https:\/\/aobosteel.com\/h13-tool-steel\/\">View H13<\/a><\/td><\/tr>\n            <tr><td>Hot Work Tool Steel<\/td><td>H21<\/td><td>1.2581 \/ SKD5<\/td><td>Hot work tooling requiring hot hardness and wear resistance<\/td><td><a href=\"https:\/\/aobosteel.com\/h21-tool-steel\/\">View H21<\/a><\/td><\/tr>\n            <tr><td>Hot Work \/ Tough Tooling Steel<\/td><td>L6<\/td><td>1.2714 \/ SKT4<\/td><td>Large dies, tough tooling parts, impact-loaded tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/l6-tool-steel\/\">View L6<\/a><\/td><\/tr>\n            <tr><td>High Speed Steel<\/td><td>M2<\/td><td>1.3343 \/ SKH51<\/td><td>Drills, milling cutters, cutting tools, punches<\/td><td><a href=\"https:\/\/aobosteel.com\/m2-tool-steel\/\">View M2<\/a><\/td><\/tr>\n            <tr><td>High Speed Steel<\/td><td>M35<\/td><td>1.3243 \/ SKH55<\/td><td>Cobalt HSS cutting tools and high-temperature cutting<\/td><td><a href=\"https:\/\/aobosteel.com\/m35-tool-steel\/\">View M35<\/a><\/td><\/tr>\n            <tr><td>High Speed Steel<\/td><td>M42<\/td><td>1.3247 \/ SKH59<\/td><td>High-performance cutting tools requiring red hardness<\/td><td><a href=\"https:\/\/aobosteel.com\/m42-tool-steel\/\">View M42<\/a><\/td><\/tr>\n            <tr><td>Plastic Mold Steel<\/td><td>P20<\/td><td>1.2311 \/ 3Cr2Mo<\/td><td>Plastic injection molds, mold bases, mold components<\/td><td><a href=\"https:\/\/aobosteel.com\/p20-tool-steel\/\">View P20<\/a><\/td><\/tr>\n            <tr><td>Plastic Mold Steel<\/td><td>P20+Ni<\/td><td>1.2738<\/td><td>Large plastic molds requiring better through-hardness<\/td><td><a href=\"https:\/\/aobosteel.com\/p20ni-steel\/\">View P20+Ni<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>Cr12<\/td><td>GB Cr12<\/td><td>Wear-resistant cold work dies and punches<\/td><td><a href=\"https:\/\/aobosteel.com\/cr12-tool-steel\/\">View Cr12<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>Cr12MoV<\/td><td>GB Cr12MoV<\/td><td>Blanking dies, forming dies, wear-focused tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/cr12mov-tool-steel\/\">View Cr12MoV<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>9SiCr<\/td><td>GB 9SiCr<\/td><td>Cold work tools, cutting tools, gauges<\/td><td><a href=\"https:\/\/aobosteel.com\/9sicr-tool-steel\/\">View 9SiCr<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>Cr12Mo1V1<\/td><td>GB Cr12Mo1V1 \/ D2-type<\/td><td>Cold work dies requiring wear resistance and stability<\/td><td><a href=\"https:\/\/aobosteel.com\/cr12mo1v1-steel\/\">View Cr12Mo1V1<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>Cr5Mo1V<\/td><td>GB Cr5Mo1V \/ A2-type<\/td><td>Air-hardening cold work dies and precision tools<\/td><td><a href=\"https:\/\/aobosteel.com\/cr5mo1v-tool-steel\/\">View Cr5Mo1V<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>6CrW2Si<\/td><td>GB 6CrW2Si<\/td><td>Shear blades, punches, and wear-resistant tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/6crw2si-tool-steel\/\">View 6CrW2Si<\/a><\/td><\/tr>\n            <tr><td>Bearing \/ GB Steel<\/td><td>GCr15<\/td><td>GB GCr15 \/ 52100 \/ 1.3505<\/td><td>Bearing parts, wear components, precision parts<\/td><td><a href=\"https:\/\/aobosteel.com\/gcr15-steel\/\">View GCr15<\/a><\/td><\/tr>\n            <tr><td>GB Standard Hot Work Steel<\/td><td>4Cr5MoSiV1<\/td><td>GB 4Cr5MoSiV1 \/ H13-type<\/td><td>Die casting dies, extrusion dies, hot work tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/4cr5mosiv1-tool-steel\/\">View 4Cr5MoSiV1<\/a><\/td><\/tr>\n            <tr><td>GB Standard Hot Work Steel<\/td><td>4Cr5MoSiV<\/td><td>GB 4Cr5MoSiV \/ H11-type<\/td><td>Hot work dies requiring toughness and heat resistance<\/td><td><a href=\"https:\/\/aobosteel.com\/4cr5mosiv-tool-steel\/\">View 4Cr5MoSiV<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>5CrNiMo<\/td><td>GB 5CrNiMo<\/td><td>Forging dies and impact-loaded hot work tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/5crnimo-tool-steel\/\">View 5CrNiMo<\/a><\/td><\/tr>\n            <tr><td>GB Standard Tool Steel<\/td><td>9CrWMn<\/td><td>GB 9CrWMn \/ O1-type<\/td><td>Cold work dies, gauges, tools with low deformation requirement<\/td><td><a href=\"https:\/\/aobosteel.com\/9crwmn-steel\/\">View 9CrWMn<\/a><\/td><\/tr>\n            <tr><td>GB Standard Hot Work Steel<\/td><td>5CrMnMo<\/td><td>GB 5CrMnMo<\/td><td>Forging dies and hot work tooling<\/td><td><a href=\"https:\/\/aobosteel.com\/5crmnmo-tool-steel\/\">View 5CrMnMo<\/a><\/td><\/tr>\n            <tr><td>GB Stainless Tool Steel<\/td><td>9Cr18Mo<\/td><td>GB 9Cr18Mo \/ 440C-type<\/td><td>Corrosion-resisting wear parts and bearing-related parts<\/td><td><a href=\"https:\/\/aobosteel.com\/9cr18mo-stainless-steel\/\">View 9Cr18Mo<\/a><\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <div class=\"aobo-section-header\">\n        <h2>Quick Selection by Application<\/h2>\n        <p>\n          Start from the working condition. Hardness alone is not enough for tool steel selection. Wear, chipping, heat, and dimensional stability usually decide the grade.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-application-grid\">\n        <div class=\"aobo-application-item\">\n          <strong>Cold stamping and blanking<\/strong>\n          <span>D2, D3, D6, A2, DC53, Cr12, Cr12MoV, Cr12Mo1V1, Cr5Mo1V. Use D2-type and Cr12-type grades when wear dominates. Consider A2-type grades when stability and toughness are more important.<\/span>\n        <\/div>\n        <div class=\"aobo-application-item\">\n          <strong>Impact-loaded punches and tools<\/strong>\n          <span>S7, S1, H11, L6, 5CrNiMo, 5CrMnMo. These grades are more suitable when the main failure is cracking, chipping, or sudden loading.<\/span>\n        <\/div>\n        <div class=\"aobo-application-item\">\n          <strong>Aluminum die casting and hot work dies<\/strong>\n          <span>H13, H11, H21, 4Cr5MoSiV1, 4Cr5MoSiV. Choose by heat checking, thermal fatigue, hot wear, and impact load.<\/span>\n        <\/div>\n        <div class=\"aobo-application-item\">\n          <strong>Cutting tools and high-temperature wear<\/strong>\n          <span>M2, M35, M42. Use cobalt HSS grades when higher hot hardness is required.<\/span>\n        <\/div>\n        <div class=\"aobo-application-item\">\n          <strong>Plastic injection molds<\/strong>\n          <span>P20 and P20+Ni are practical starting grades for general mold work and larger mold sections.<\/span>\n        <\/div>\n        <div class=\"aobo-application-item\">\n          <strong>Shear blades and wear parts<\/strong>\n          <span>6CrW2Si, Cr12MoV, D2, D6, GCr15, 52100. Select by cutting load, wear condition, and required toughness.<\/span>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <div class=\"aobo-section-header\">\n        <h2>How to Narrow the Grade Choice<\/h2>\n        <p>\n          A suitable grade is selected by the failure mode and working condition. This section helps reduce wrong inquiries before quotation.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Main Requirement<\/th>\n              <th>Common Grade Direction<\/th>\n              <th>Practical Note<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Abrasive wear resistance<\/td>\n              <td>D2, D3, D6, Cr12, Cr12MoV, Cr12Mo1V1, M2, M42<\/td>\n              <td>Useful for cutting, blanking, and wear-focused tooling. Check toughness if the tool chips.<\/td>\n            <\/tr>\n            <tr>\n              <td>Better toughness<\/td>\n              <td>S7, S1, H11, L6, 5CrNiMo, 5CrMnMo<\/td>\n              <td>Useful when cracks or impact breakage are more serious than wear loss.<\/td>\n            <\/tr>\n            <tr>\n              <td>Hot work service<\/td>\n              <td>H13, H11, H21, 4Cr5MoSiV1, 4Cr5MoSiV<\/td>\n              <td>Used for die casting, forging, extrusion, and tools exposed to repeated heating and cooling.<\/td>\n            <\/tr>\n            <tr>\n              <td>High-speed cutting<\/td>\n              <td>M2, M35, M42<\/td>\n              <td>Selection depends on cutting temperature, wear rate, and expected tool life.<\/td>\n            <\/tr>\n            <tr>\n              <td>Plastic mold work<\/td>\n              <td>P20, P20+Ni<\/td>\n              <td>Good starting grades for mold machining and general injection mold applications.<\/td>\n            <\/tr>\n            <tr>\n              <td>Shear blade and punch applications<\/td>\n              <td>6CrW2Si, Cr12MoV, D2, S7<\/td>\n              <td>Choose by cutting load, impact level, edge chipping risk, and wear condition.<\/td>\n            <\/tr>\n            <tr>\n              <td>Bearing and precision wear parts<\/td>\n              <td>GCr15 \/ 52100 \/ 1.3505<\/td>\n              <td>Used when high hardness, wear resistance, and bearing performance are required.<\/td>\n            <\/tr>\n            <tr>\n              <td>Corrosion-resisting wear parts<\/td>\n              <td>9Cr18Mo \/ 440C-type stainless steel<\/td>\n              <td>Used when wear resistance and moderate corrosion resistance are both required.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <div class=\"aobo-section-header\">\n        <h2>Supply Information for Quotation<\/h2>\n        <p>\n          For a faster quotation, send the grade, size, quantity, surface condition, and destination port. If the exact grade is not confirmed, send the application and failure problem.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-supply-list\">\n        <div class=\"aobo-supply-item\">\n          <strong>Main products<\/strong>\n          <span>Tool steel round bar and plate for bulk industrial supply.<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Condition<\/strong>\n          <span>Usually supplied in annealed or soft condition for machining.<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Surface<\/strong>\n          <span>Black surface, turned or peeled round bar, and milled plate can be discussed by order.<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Inspection<\/strong>\n          <span>MTC and UT inspection can be supplied according to order requirements.<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Order direction<\/strong>\n          <span>Bulk B2B supply for distributors, stockists, importers, and tooling buyers.<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Heat treatment<\/strong>\n          <span>Aobo Steel supplies material. Final hardening and tempering are usually handled by the customer side.<\/span>\n        <\/div>\n      <\/div>\n\n      <p class=\"aobo-note\">\n        If you need a grade not listed on this page, use the inquiry button and send the standard, size, and quantity for checking.\n      <\/p>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <div class=\"aobo-section-header\">\n        <h2>Common Questions Before Inquiry<\/h2>\n        <p>\n          These answers are written for procurement discussion. For detailed technical data, open the specific grade page.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-two-col\">\n        <div class=\"aobo-info-card\">\n          <h3>Do you supply hardened tool steel?<\/h3>\n          <p>\n            Aobo Steel mainly supplies tool steel in annealed or soft condition. This is suitable for machining, cutting, and later heat treatment by the buyer or their heat-treatment partner.\n          <\/p>\n        <\/div>\n\n        <div class=\"aobo-info-card\">\n          <h3>Can you supply Chinese GB tool steel?<\/h3>\n          <p>\n            Yes. Aobo Steel supplies selected GB standard tool steels, including Cr12, Cr12MoV, 9SiCr, Cr12Mo1V1, Cr5Mo1V, 6CrW2Si, GCr15, 4Cr5MoSiV1, 4Cr5MoSiV, 5CrNiMo, 9CrWMn, 5CrMnMo, and 9Cr18Mo.\n          <\/p>\n        <\/div>\n\n        <div class=\"aobo-info-card\">\n          <h3>Can Aobo Steel quote by equivalent grade?<\/h3>\n          <p>\n            Yes. You can send ASTM\/AISI, DIN\/W-Nr., JIS, GB, or another standard. If the equivalent is unclear, send the chemical composition or application for checking.\n          <\/p>\n        <\/div>\n\n        <div class=\"aobo-info-card\">\n          <h3>What information is needed for quotation?<\/h3>\n          <p>\n            Send grade, size, quantity, shape, surface condition, destination port, and any inspection requirement. This avoids repeated clarification and improves quotation accuracy.\n          <\/p>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-cta\">\n      <h2>Need Bulk Tool Steel Supply?<\/h2>\n      <p>\n        Send your required grade, size, quantity, surface condition, and destination port. If the grade is not confirmed, send the application and working condition. Aobo Steel will help check the suitable supply direction.\n      <\/p>\n      <div class=\"aobo-cta-actions\">\n        <a class=\"aobo-btn aobo-btn-primary hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Bulk Tool Steel Quote<\/a>\n        <a class=\"aobo-btn aobo-btn-secondary\" href=\"#aobo-grade-catalog\">Back to Grade Catalog<\/a>\n      <\/div>\n    <\/section>\n\n  <\/div>\n<\/section>\n\n<script>\n  (function () {\n    const buttons = document.querySelectorAll('.aobo-filter-btn');\n    const cards = document.querySelectorAll('.aobo-grade-card');\n\n    buttons.forEach(function (button) {\n      button.addEventListener('click', function () {\n        const filter = button.getAttribute('data-filter');\n\n        buttons.forEach(function (btn) {\n          btn.classList.remove('active');\n        });\n\n        button.classList.add('active');\n\n        cards.forEach(function (card) {\n          const category = 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