{"id":9596,"date":"2025-08-07T10:15:17","date_gmt":"2025-08-07T02:15:17","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9596"},"modified":"2026-05-15T20:05:18","modified_gmt":"2026-05-15T12:05:18","slug":"hot-work-tool-steels","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/hot-work-tool-steels\/","title":{"rendered":"Hot Work Tool Steel Grades | H10 H11 H13 H21 L6 Supplier"},"content":{"rendered":"<section class=\"aobo-hotwork-catalog\">\n  <style>\n    .aobo-hotwork-catalog {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #083b8f;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-blue-light: #f5f9ff;\n      --aobo-orange: #f59e0b;\n      --aobo-text: #25364d;\n      --aobo-heading: #092f69;\n      --aobo-muted: #526985;\n      --aobo-border: #cfe0f8;\n      --aobo-card: #ffffff;\n      font-family: Arial, Helvetica, sans-serif;\n      background: transparent;\n      color: var(--aobo-text);\n      padding: 0;\n      box-sizing: border-box;\n    }\n\n 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var(--aobo-orange);\n      color: #ffffff;\n      border-color: var(--aobo-orange);\n      box-shadow: none;\n    }\n\n    .aobo-cta .aobo-btn-secondary {\n      background: rgba(255,255,255,0.10);\n      color: #ffffff;\n      border-color: rgba(255,255,255,0.32);\n    }\n\n    @media (max-width: 980px) {\n      .aobo-supply-strip,\n      .aobo-grade-grid,\n      .aobo-two-col {\n        grid-template-columns: 1fr 1fr;\n      }\n\n      .aobo-filter-row {\n        grid-template-columns: 1fr;\n      }\n\n      .aobo-section-head {\n        display: block;\n      }\n\n      .aobo-grade-pill {\n        margin-top: 16px;\n      }\n    }\n\n    @media (max-width: 680px) {\n      .aobo-hotwork-catalog {\n        padding: 0;\n      }\n\n      .aobo-hotwork-hero,\n      .aobo-section,\n      .aobo-cta {\n        padding: 22px;\n        border-radius: 20px;\n      }\n\n      .aobo-supply-strip,\n      .aobo-grade-grid,\n      .aobo-two-col {\n        grid-template-columns: 1fr;\n      }\n\n      .aobo-card-actions {\n        grid-template-columns: 1fr;\n      }\n\n      .aobo-btn {\n        width: 100%;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-hotwork-wrap\">\n\n    <div class=\"aobo-hotwork-hero\">\n      <div class=\"aobo-kicker\">Hot Work Tool Steel Catalog<\/div>\n      <h1>Hot Work Tool Steel Grades for Bulk Supply<\/h1>\n      <p>\n        Aobo Steel supplies hot work tool steel grades for die casting, hot extrusion, hot forging, hot shear blades, punches, inserts, and high-temperature forming tools. This catalog helps buyers compare H10, H11, H13, H21, L6, and related GB hot work tool steels by application, failure mode, equivalent grade, and bulk supply condition.\n      <\/p>\n\n      <div class=\"aobo-hero-actions\">\n        <a class=\"aobo-btn aobo-btn-primary hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Hot Work Steel Quote<\/a>\n        <a class=\"aobo-btn aobo-btn-secondary\" href=\"#hotwork-grades\">View Grades<\/a>\n        <a class=\"aobo-btn aobo-btn-secondary\" href=\"#hotwork-selection-guide\">Guia de Sele\u00e7\u00e3o<\/a>\n      <\/div>\n\n      <div class=\"aobo-supply-strip\">\n        <div class=\"aobo-supply-item\">\n          <strong>Product Forms<\/strong>\n          <span>Round bar, flat bar, plate, forged block<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Condi\u00e7\u00f5es de entrega<\/strong>\n          <span>Mainly annealed condition for machining and final heat treatment<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Inspection Support<\/strong>\n          <span>UT inspection and MTC available according to order requirements<\/span>\n        <\/div>\n        <div class=\"aobo-supply-item\">\n          <strong>Bulk Supply Focus<\/strong>\n          <span>Suitable for distributors, stockists, importers, and industrial projects<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <section class=\"aobo-section\" id=\"hotwork-grades\">\n      <div class=\"aobo-section-head\">\n        <div>\n          <h2>Hot Work Tool Steel Grades Supplied by Aobo Steel<\/h2>\n          <p class=\"aobo-section-intro\">\n            Choose the grade according to working temperature, thermal fatigue, hot wear, impact load, die size, and tooling cost. If the application is not clear, use the selection filter below as a quick starting point.\n          <\/p>\n        <\/div>\n        <div class=\"aobo-grade-pill\">AISI, DIN, JIS and GB grades<\/div>\n      <\/div>\n\n      <div class=\"aobo-filter-box\">\n        <div class=\"aobo-filter-row\">\n          <div class=\"aobo-filter-control\">\n            <label for=\"aoboHotworkFilter\">Filter by application or selection need<\/label>\n            <select id=\"aoboHotworkFilter\" onchange=\"aoboFilterHotworkCards()\">\n              <option value=\"all\">Show all hot work grades<\/option>\n              <option value=\"diecasting\">Die casting dies and inserts<\/option>\n              <option value=\"extrusion\">Matrizes de extrus\u00e3o a quente<\/option>\n              <option value=\"forging\">Matrizes de forjamento a quente<\/option>\n              <option value=\"shear\">L\u00e2minas de corte a quente<\/option>\n              <option value=\"shock\">Thermal shock or cracking risk<\/option>\n              <option value=\"redhardness\">High-temperature wear or red hardness<\/option>\n              <option value=\"impact\">Heavy impact forging tools<\/option>\n              <option value=\"gb\">GB hot work steel required by drawing<\/option>\n            <\/select>\n          <\/div>\n          <p class=\"aobo-filter-note\">\n            This filter is for preliminary selection. Final grade choice should consider tool size, working material, operating temperature, cooling method, failure mode, target hardness, and heat-treatment condition.\n          <\/p>\n        <\/div>\n      <\/div>\n\n      <div class=\"aobo-grade-grid\" id=\"aoboHotworkCards\">\n\n        <article class=\"aobo-grade-card\" data-filter=\"all extrusion shear diecasting chromium\">\n          <div class=\"aobo-card-top\">\n            <h3>H10 Tool Steel<\/h3>\n            <span class=\"aobo-grade-label\">AISI H-Series<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">1.2365 \/ SKD7<\/div>\n          <p>\n            Chromium hot work steel for extrusion dies, hot shear blades, and die casting tools requiring toughness, hardenability, and resistance to thermal fatigue.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Hot extrusion dies, hot shear blades, die casting tools<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Toughness and resistance to softening under hot work conditions<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/h10-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all diecasting extrusion shock chromium\">\n          <div class=\"aobo-card-top\">\n            <h3>A\u00e7o para ferramentas H11<\/h3>\n            <span class=\"aobo-grade-label\">AISI H-Series<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">1.2343 \/ SKD6<\/div>\n          <p>\n            Hot work steel with strong toughness and thermal shock resistance for tools exposed to repeated heating, cooling, impact loading, and cracking risk.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Die casting dies, hot punches, extrusion tools<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Better toughness and thermal shock resistance than more wear-focused grades<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/h11-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all diecasting extrusion forging shear chromium\">\n          <div class=\"aobo-card-top\">\n            <h3>A\u00e7o para ferramentas H13<\/h3>\n            <span class=\"aobo-grade-label\">AISI H-Series<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">1.2344 \/ SKD61<\/div>\n          <p>\n            Widely used hot work tool steel for die casting, extrusion, and forging applications requiring balanced hot hardness, wear resistance, toughness, and heat checking resistance.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Aluminum die casting dies, extrusion dies, forging dies<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Balanced resistance to heat checking, hot wear, and thermal softening<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/h13-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all extrusion redhardness tungsten\">\n          <div class=\"aobo-card-top\">\n            <h3>A\u00e7o ferramenta H21<\/h3>\n            <span class=\"aobo-grade-label\">AISI H-Series<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">1.2581 \/ SKD7<\/div>\n          <p>\n            Tungsten hot work steel for high-temperature tooling where red hardness, resistance to softening, and hot wear resistance are more important than maximum toughness.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Brass extrusion, hot punches, high-temperature dies<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Strong red hardness and resistance to high-temperature wear<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/h21-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all forging impact\">\n          <div class=\"aobo-card-top\">\n            <h3>A\u00e7o ferramenta L6<\/h3>\n            <span class=\"aobo-grade-label\">Forging Die Steel<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">1.2714 \/ SKT4<\/div>\n          <p>\n            Tough forging die steel used for heavy-duty tools where impact resistance, deep hardenability, and resistance to breakage are more important than maximum red hardness.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Drop forging dies, heavy-duty tools, forming rolls<\/span><\/div>\n            <div><b>Selection reason<\/b><span>High toughness and deep hardenability for heavy impact applications<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/l6-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all diecasting extrusion gb chromium\">\n          <div class=\"aobo-card-top\">\n            <h3>4Cr5MoSiV1<\/h3>\n            <span class=\"aobo-grade-label aobo-grade-label-gb\">GB Hot Work<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">GB hot work tool steel<\/div>\n          <p>\n            GB hot work steel used for die casting dies, extrusion dies, and hot forming tools requiring balanced hot strength, thermal fatigue resistance, and wear resistance.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Die casting dies, extrusion dies, hot forming tools<\/span><\/div>\n            <div><b>Selection reason<\/b><span>GB option for balanced hot work tooling performance<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/4cr5mosiv1-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all diecasting extrusion shear shock gb chromium\">\n          <div class=\"aobo-card-top\">\n            <h3>4Cr5MoSiV<\/h3>\n            <span class=\"aobo-grade-label aobo-grade-label-gb\">GB Hot Work<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">GB hot work tool steel<\/div>\n          <p>\n            GB chromium hot work steel for tools requiring toughness, hardenability, and thermal shock resistance under repeated heating and cooling conditions.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Hot punches, extrusion tools, die casting dies, hot shear blades<\/span><\/div>\n            <div><b>Selection reason<\/b><span>GB option for toughness and thermal shock resistance<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/4cr5mosiv-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all forging impact gb\">\n          <div class=\"aobo-card-top\">\n            <h3>5CrNiMo<\/h3>\n            <span class=\"aobo-grade-label aobo-grade-label-gb\">GB Forging Die<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">GB hot forging die steel<\/div>\n          <p>\n            Forging die steel used for medium and large hot forging dies requiring toughness, impact resistance, and stable service under repeated forging loads.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Forging dies, hammer forging tools, heavy-duty dies<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Toughness and impact resistance for forging die applications<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/5crnimo-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all forging impact gb\">\n          <div class=\"aobo-card-top\">\n            <h3>5CrMnMo<\/h3>\n            <span class=\"aobo-grade-label aobo-grade-label-gb\">GB Forging Die<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">GB hot forging die steel<\/div>\n          <p>\n            Forging die steel for hot forging dies and forming tools where toughness, hardenability, and cost control are important in medium-duty applications.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Hot forging dies, forming tools, medium-duty dies<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Practical GB forging die steel for moderate service severity<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details\" href=\"https:\/\/aobosteel.com\/pt\/5crmnmo-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-grade-card\" data-filter=\"all redhardness\">\n          <div class=\"aobo-card-top\">\n            <h3>Other H-Series Grades<\/h3>\n            <span class=\"aobo-grade-label\">By Inquiry<\/span>\n          <\/div>\n          <div class=\"aobo-grade-equivalent\">H14 \/ H25 \/ H42 and project-based grades<\/div>\n          <p>\n            Some hot work tool steel grades are requested for specific applications, regional standards, or project-based requirements. Availability should be checked by grade, size, quantity, and inspection level.\n          <\/p>\n          <div class=\"aobo-card-meta\">\n            <div><b>Best for<\/b><span>Special hot work tooling requirements<\/span><\/div>\n            <div><b>Selection reason<\/b><span>Used when the drawing or technical specification requires a less common H-series grade<\/span><\/div>\n          <\/div>\n          <div class=\"aobo-card-actions\">\n            <a class=\"details hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Ask Availability<\/a>\n            <a class=\"inquiry hs-cta-trigger-button hs-cta-trigger-button-230288465624\" href=\"javascript:void(0);\">Request Quote<\/a>\n          <\/div>\n        <\/article>\n\n      <\/div>\n\n      <div class=\"aobo-no-result\" id=\"aoboHotworkNoResult\">\n        <strong>No matching grade is shown for this filter.<\/strong><br>\n        Please contact Aobo Steel with your application, working temperature, tooling size, required standard, and quantity. We can help check a suitable hot work tool steel grade.\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\" id=\"hotwork-selection-guide\">\n      <h2>Quick Selection Guide for Hot Work Tool Steel<\/h2>\n      <p class=\"aobo-section-intro\">\n        Hot work steel selection should start from the actual tooling failure mode. Heat checking, plastic deformation, impact cracking, and high-temperature wear usually require different material priorities.\n      <\/p>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Application or Failure Mode<\/th>\n              <th>Recommended Grade<\/th>\n              <th>GB Option<\/th>\n              <th>Selection Reason<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>Aluminum die casting inserts<\/strong><\/td>\n              <td>H13 \/ H11<\/td>\n              <td>4Cr5MoSiV1 \/ 4Cr5MoSiV<\/td>\n              <td>H13 is commonly selected for balanced heat checking resistance, hot strength, and wear resistance. H11 is safer when thermal shock and cracking are more serious.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Matrizes de extrus\u00e3o a quente<\/strong><\/td>\n              <td>H13 \/ H10 \/ H21<\/td>\n              <td>4Cr5MoSiV1 \/ 4Cr5MoSiV<\/td>\n              <td>H13 is the balanced choice. H10 supports toughness and thermal fatigue resistance. H21 is used when red hardness and high-temperature wear resistance are more important.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Matrizes de forjamento a quente<\/strong><\/td>\n              <td>H13 \/ L6<\/td>\n              <td>5CrNiMo \/ 5CrMnMo<\/td>\n              <td>H13 is selected for heat resistance and hot strength. L6, 5CrNiMo, and 5CrMnMo are used when impact toughness and forging die performance are more important.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>L\u00e2minas de corte a quente<\/strong><\/td>\n              <td>H10 \/ H13<\/td>\n              <td>4Cr5MoSiV<\/td>\n              <td>These grades offer a practical balance of toughness, hot strength, and resistance to softening during hot cutting conditions.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Brass extrusion and severe hot wear<\/strong><\/td>\n              <td>H21<\/td>\n              <td>Project-based GB selection<\/td>\n              <td>Tungsten alloying improves red hardness and resistance to softening at high working temperature. The GB alternative should be confirmed by working temperature and wear severity.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Thermal shock and cracking risk<\/strong><\/td>\n              <td>H11<\/td>\n              <td>4Cr5MoSiV<\/td>\n              <td>H11 and 4Cr5MoSiV are often selected when the tool experiences repeated rapid heating and cooling or impact loading.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <h2>Hot Work Steel Groups and Selection Limits<\/h2>\n      <p class=\"aobo-section-intro\">\n        Hot work tool steels are usually grouped by their main alloying system. This classification helps compare toughness, red hardness, thermal fatigue resistance, and high-temperature wear performance.\n      <\/p>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Group<\/th>\n              <th>Typical Grades<\/th>\n              <th>Main Strength<\/th>\n              <th>Selection Limit<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>Chromium hot work steels<\/strong><\/td>\n              <td>H10, H11, H13, 4Cr5MoSiV, 4Cr5MoSiV1<\/td>\n              <td>Good balance of toughness, hardenability, hot strength, and thermal fatigue resistance.<\/td>\n              <td>May not be enough for the most severe high-temperature wear conditions.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Tungsten hot work steels<\/strong><\/td>\n              <td>H21, H25, H26<\/td>\n              <td>Strong red hardness and resistance to softening at high temperature.<\/td>\n              <td>Lower toughness than chromium hot work steels, so cracking risk must be considered.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Molybdenum hot work steels<\/strong><\/td>\n              <td>H42, H43<\/td>\n              <td>High hot hardness and resistance to elevated-temperature softening.<\/td>\n              <td>Heat treatment and surface condition require careful control.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Forging die steels<\/strong><\/td>\n              <td>L6, 5CrNiMo, 5CrMnMo<\/td>\n              <td>High toughness and hardenability for forging dies and heavy-duty hot work tools.<\/td>\n              <td>Selection should be based on forging load, die size, impact level, and required tool life.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <h2>Hot Work Tool Steel Product Links<\/h2>\n      <p class=\"aobo-section-intro\">\n        Use this table as a quick catalog entry. It helps buyers, stockists, and engineers jump directly to the corresponding product page.\n      <\/p>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Grau<\/th>\n              <th>Equivalent or Category<\/th>\n              <th>Aplica\u00e7\u00e3o t\u00edpica<\/th>\n              <th>Product Page<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>H10<\/strong><\/td>\n              <td>1.2365 \/ SKD7<\/td>\n              <td>Hot extrusion dies, hot shear blades, die casting tools<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/h10-tool-steel\/\">View H10<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>H11<\/strong><\/td>\n              <td>1.2343 \/ SKD6<\/td>\n              <td>Hot punches, extrusion tools, die casting dies<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/h11-tool-steel\/\">View H11<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>H13<\/strong><\/td>\n              <td>1.2344 \/ SKD61<\/td>\n              <td>Aluminum die casting, extrusion dies, forging dies<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/h13-tool-steel\/\">View H13<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>H21<\/strong><\/td>\n              <td>1.2581 \/ SKD7<\/td>\n              <td>Brass extrusion, hot punches, high-temperature dies<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/h21-tool-steel\/\">View H21<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>L6<\/strong><\/td>\n              <td>1.2714 \/ SKT4<\/td>\n              <td>Drop forging dies, heavy-duty tools, forming rolls<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/l6-tool-steel\/\">View L6<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>4Cr5MoSiV1<\/strong><\/td>\n              <td>GB hot work tool steel<\/td>\n              <td>Die casting dies, extrusion dies, hot forming tools<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/4cr5mosiv1-tool-steel\/\">View 4Cr5MoSiV1<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>4Cr5MoSiV<\/strong><\/td>\n              <td>GB hot work tool steel<\/td>\n              <td>Hot punches, extrusion tools, die casting dies<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/4cr5mosiv-tool-steel\/\">View 4Cr5MoSiV<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>5CrNiMo<\/strong><\/td>\n              <td>GB forging die steel<\/td>\n              <td>Forging dies, hammer forging tools, heavy-duty dies<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/5crnimo-tool-steel\/\">View 5CrNiMo<\/a><\/td>\n            <\/tr>\n            <tr>\n              <td><strong>5CrMnMo<\/strong><\/td>\n              <td>GB forging die steel<\/td>\n              <td>Hot forging dies, forming tools, medium-duty dies<\/td>\n              <td><a href=\"https:\/\/aobosteel.com\/pt\/5crmnmo-tool-steel\/\">View 5CrMnMo<\/a><\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <h2>Bulk Hot Work Tool Steel Supply from Aobo Steel<\/h2>\n      <p class=\"aobo-section-intro\">\n        This catalog page is designed for practical sourcing, not only material introduction. Aobo Steel focuses on bulk B2B supply of tool steel for distributors, stockists, importers, and industrial tooling projects.\n      <\/p>\n\n      <div class=\"aobo-two-col\">\n        <div class=\"aobo-info-card\">\n          <h3>Supply Range<\/h3>\n          <p>\n            Aobo Steel supplies hot work tool steel in round bar, flat bar, plate, and forged block. Common grades include H10, H11, H13, H21, L6, 4Cr5MoSiV1, 4Cr5MoSiV, 5CrNiMo, and 5CrMnMo.\n          <\/p>\n        <\/div>\n\n        <div class=\"aobo-info-card\">\n          <h3>Condi\u00e7\u00f5es de entrega<\/h3>\n          <p>\n            Hot work tool steels are mainly supplied in annealed condition. Final hardening and tempering should be arranged according to tool design, working temperature, cooling method, and service requirement.\n          <\/p>\n        <\/div>\n\n        <div class=\"aobo-info-card\">\n          <h3>Inspection and Documents<\/h3>\n          <p>\n            UT inspection, material test certificate, grade confirmation, size checking, and export documentation can be arranged according to the purchase order and technical requirement.\n          <\/p>\n        <\/div>\n\n        <div class=\"aobo-info-card\">\n          <h3>Export Order Support<\/h3>\n          <p>\n            For bulk orders, Aobo Steel can support container loading planning, mixed grade supply, supplier coordination, and export shipment preparation for overseas steel distributors and industrial users.\n          <\/p>\n        <\/div>\n      <\/div>\n\n      <p class=\"aobo-note\">\n        Note: Aobo Steel supplies tool steel materials. We do not provide final heat treatment service. Heat treatment information on this page is used as technical reference for material selection and project communication.\n      <\/p>\n    <\/section>\n\n    <section class=\"aobo-section\">\n      <h2>FAQ About Hot Work Tool Steel<\/h2>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Question<\/th>\n              <th>Resposta direta<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>What is hot work tool steel used for?<\/strong><\/td>\n              <td>Hot work tool steel is used for dies, molds, punches, inserts, shear blades, and forming tools that work under high temperature, pressure, and repeated thermal cycling.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>What are common hot work tool steel grades?<\/strong><\/td>\n              <td>Common grades include H10, H11, H13, H21, H25, H26, H42, L6, 4Cr5MoSiV1, 4Cr5MoSiV, 5CrNiMo, and 5CrMnMo.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>What GB grades are used for hot work tooling?<\/strong><\/td>\n              <td>Common GB hot work and forging die steels include 4Cr5MoSiV1, 4Cr5MoSiV, 5CrNiMo, and 5CrMnMo, depending on the application and drawing requirement.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>What is the difference between H11 and H13?<\/strong><\/td>\n              <td>H11 generally offers better toughness and thermal shock resistance, while H13 offers better wear resistance and hot strength because of its higher vanadium content.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Does Aobo Steel supply hardened hot work steel?<\/strong><\/td>\n              <td>Aobo Steel mainly supplies hot work tool steel in annealed condition for further machining and final heat treatment.<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Can Aobo Steel supply bulk hot work tool steel?<\/strong><\/td>\n              <td>Yes. Aobo Steel focuses on bulk tool steel supply for distributors, stockists, importers, and industrial projects.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/section>\n\n    <section class=\"aobo-cta\">\n      <h2>Need Bulk Hot Work Tool Steel Supply?<\/h2>\n      <p>\n        Send your required grade, equivalent standard, size, quantity, surface condition, inspection requirement, and destination port. Aobo Steel will help check availability and offer a practical supply solution for your hot work tool steel order.\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);\">Open Contact Form<\/a>\n        <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/pt\/tool-steels\/\">View Tool Steel Products<\/a>\n      <\/div>\n    <\/section>\n\n  <\/div>\n\n  <script>\n    function aoboFilterHotworkCards() {\n      var selectedValue = document.getElementById(\"aoboHotworkFilter\").value;\n      var cards = document.querySelectorAll(\"#aoboHotworkCards .aobo-grade-card\");\n      var noResult = document.getElementById(\"aoboHotworkNoResult\");\n      var visibleCount = 0;\n\n      cards.forEach(function(card) {\n        var filterValues = card.getAttribute(\"data-filter\");\n\n        if (selectedValue === \"all\" || filterValues.indexOf(selectedValue) !== -1) {\n          card.classList.remove(\"aobo-hidden\");\n          visibleCount++;\n        } else {\n          card.classList.add(\"aobo-hidden\");\n        }\n      });\n\n      if (visibleCount === 0) {\n        noResult.style.display = \"block\";\n      } else {\n        noResult.style.display = \"none\";\n      }\n    }\n  <\/script>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Hot Work Tool Steel Catalog Hot Work Tool Steel Grades for Bulk Supply Aobo Steel supplies hot work tool steel grades for die casting, hot extrusion, hot forging, hot shear blades, punches, inserts, and high-temperature forming tools. This catalog helps buyers compare H10, H11, H13, H21, L6, and related GB hot work tool steels by [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15256,"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":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"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 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