{"id":24775,"date":"2026-10-30T20:37:49","date_gmt":"2026-10-30T12:37:49","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=24775"},"modified":"2026-10-30T23:16:39","modified_gmt":"2026-10-30T15:16:39","slug":"h13-mold-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/h13-mold-steel\/","title":{"rendered":"H13 Mold Steel for Mold Inserts and Cores | Aobo Steel"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull is-light h13m-cover\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-block-cover__image-background wp-image-24110\" alt=\"H13 tool steel round bars, bar ends stencilled with the grade and the diameter\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3.jpg\" width=\"2400\" height=\"1800\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3-300x225.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3-768x576.jpg 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3-1024x768.jpg 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3-1536x1152.jpg 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3-2048x1536.jpg 2048w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/aobo-tool-steel-catalog-h13-bars-v3.jpg 2400w\" sizes=\"auto, (max-width: 768px) 100vw, 2400px\"\/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<style id=\"aobo-h13m\" data-noptimize=\"1\">\n\n\/* ===== H13 mold steel product page \u2014 header + hero fill the first viewport; theme footer follows ===== *\/\n\/* every rule is scoped to .h13m; the theme footer is kept on this page (page-id-24775) *\/\n.h13m *,.h13m *::before,.h13m *::after{box-sizing:border-box}\n.h13m{font-size:16px;line-height:1.7;color:#fff}\n\n\/* --- one-screen hero; the theme footer stays below it (Evan 2026-10-20) --- *\/\nbody.page-id-24775 .site-content{padding-bottom:0!important;margin-bottom:0!important}\nbody.page-id-24775 .site-footer,body.page-id-24775 #colophon{display:block!important}\n\n\/* --- hero: full-bleed, fills everything below the theme header (148px desktop \/ 74px mobile) --- *\/\n.h13m-cover{position:relative;isolation:isolate;overflow:hidden;display:flex;align-items:center;padding:0!important;\n  min-height:calc(100svh - 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74px)}\n}\n\/* logged-in visitors carry the 32px WP admin bar \u2014 keep header + hero inside one screen *\/\nbody.admin-bar .h13m-cover{min-height:calc(100svh - 180px)}\n@media (max-width:900px){\n  .h13m-in{padding:12px 13px 7px;gap:9px}\n  .h13m-eyebrow{font-size:10.2px;margin-bottom:4px}\n  .h13m-h1{font-size:23px!important;margin-bottom:4px!important}\n  .h13m-sub{font-size:15px;margin-bottom:6px}\n  .h13m-lede{font-size:13px;margin-bottom:7px;line-height:1.38}\n  .h13m-spec div{grid-template-columns:92px 1fr;font-size:11.8px;padding:4px 9px;gap:8px}\n  .h13m-also{display:none}\n  .h13m-card{padding:10px 12px 9px}\n  .h13m-card h2{font-size:15px!important}\n  .h13m-cardsub{margin-bottom:7px;font-size:11.6px}\n  .h13m-card input[type=text],.h13m-card input[type=email],.h13m-card input[type=tel],.h13m-card textarea{padding:7px 9px;font-size:12.8px}\n  .h13m-card form p{margin-bottom:5px}\n  .h13m-card textarea{min-height:38px}\n  .h13m-card input[type=submit]{padding:10px 12px;font-size:14px}\n}\n\/* small phones: one tier tighter so specs + form still fit one screen *\/\n@media (max-width:420px){\n  .h13m-spec .row-docs,.h13m-spec .row-delivery{display:none}\n  .h13m-spec div{font-size:11.3px;padding:3px 8px}\n  .h13m-h1{font-size:22px!important}\n  .h13m-lede{display:none}\n  .h13m-card{padding:9px 11px 8px}\n  .h13m-card form p{margin-bottom:4px}\n  .h13m-card input[type=text],.h13m-card input[type=email],.h13m-card input[type=tel],.h13m-card textarea{padding:6px 8px;font-size:12.4px}\n  .h13m-card textarea{min-height:30px}\n  .h13m-card input[type=submit]{padding:9px 12px;font-size:13.6px}\n  .h13m-or{margin-top:6px;font-size:11.4px}\n}\n\/* very small phones (360px class): last tier so the page still does not scroll *\/\n@media (max-width:380px){\n  .h13m-eyebrow{display:none}\n  .h13m-in{gap:6px;padding:6px 10px 4px}\n  .h13m-h1{font-size:21px!important}\n  .h13m-sub{font-size:13px;margin-bottom:4px}\n  .h13m-spec div{font-size:11.1px;padding:2px 7px;gap:7px}\n  .h13m-card{padding:7px 9px 6px}\n  .h13m-cardsub{margin-bottom:5px}\n  .h13m-card form p{margin-bottom:3px}\n  .h13m-card input[type=text],.h13m-card input[type=email],.h13m-card input[type=tel],.h13m-card textarea{padding:5px 8px;font-size:12.2px}\n  .h13m-card textarea{min-height:22px}\n  .h13m-card input[type=submit]{padding:8px 11px;font-size:13.4px}\n  .h13m-or{margin-top:5px;font-size:11.2px}\n}\n\n<\/style>\n<div class=\"h13m-in\">\n    <div class=\"h13m-copy\">\n      <p class=\"h13m-eyebrow\">Aobo Steel \u00b7 Tool Steel Supplier \u00b7 Huangshi, China<\/p>\n      <h1 class=\"h13m-h1\">H13 Mold Steel for Injection Mold Inserts and Dies<\/h1>\n      <p class=\"h13m-sub\">AISI H13 \/ DIN 1.2344 \/ X40CrMoV5-1 \u2014 JIS SKD61 equivalent \u00b7 annealed for machining<\/p>\n      <p class=\"h13m-lede\">H13 mold steel for cavity and core inserts, slides and small mold components. Supplied <b>annealed and cut to size<\/b>, with the heat number on every batch. The insert is machined in the annealed condition and hardened and tempered by the toolroom afterwards, because the working hardness a plastic mold needs is set by that second step.<\/p>\n      <div class=\"h13m-spec\"><div><b>Grade<\/b><span>AISI H13 \u00b7 DIN 1.2344 \u00b7 X40CrMoV5-1 \u00b7 JIS SKD61 \u00b7 4Cr5MoSiV1<\/span><\/div><div class=\"hl\"><b>Forms<\/b><span>Round bar \u00b7 flat bar \u00b7 plate \u00b7 forged block<\/span><\/div><div class=\"hl\"><b>Plate<\/b><span>Milled square or ground flat to finished size<\/span><\/div><div><b>Surface<\/b><span>Black \/ turned \/ polished on request<\/span><\/div><div><b>Delivery<\/b><span>Spheroidised annealed \u2264 229 HBW \u00b7 ESR on request<\/span><\/div><div><b>Documents<\/b><span>MTC EN 10204 3.1 per heat \u00b7 UT SEP 1921-82 D\/d or E\/e<\/span><\/div><div><b>Order size<\/b><span>MOQ 5 t \u00b7 mixed sizes in one container (~26 t per 20GP)<\/span><\/div><\/div>\n      <p class=\"h13m-also\">Also supplied: <a href=\"https:\/\/aobosteel.com\/plastic-mold-steels\/\">plastic mold steels<\/a>, <a href=\"https:\/\/aobosteel.com\/p20-tool-steel\/\">P20 tool steel<\/a> for prehardened cavity blocks, and <a href=\"https:\/\/aobosteel.com\/420-stainless-steel\/\">420 stainless steel<\/a> where the resin is corrosive.<\/p>\n    <\/div>\n\n    <div class=\"h13m-card\" id=\"h13m-form\">\n      <h2>Request price &amp; delivery<\/h2>\n      <p class=\"h13m-cardsub\">Tell us the insert sizes, quantity and destination port. We confirm price, sizes and delivery within one working day.<\/p>\n      \n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16042-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"16042\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pt\/wp-json\/wp\/v2\/pages\/24775#wpcf7-f16042-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16042\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.2.4.1\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16042-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"wpcf7-turnstile cf-turnstile\" data-sitekey=\"0x4AAAAAAFMY32JbOfIdWijB\" data-response-field-name=\"_wpcf7_turnstile_response\"><\/div>\n\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your Name *\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Email *\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"4\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Message *\" name=\"your-message\"><\/textarea><\/span>\n<\/p>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send Inquiry\" \/>\n<\/p><p style=\"display: none !important;\" class=\"akismet-fields-container\" data-prefix=\"_wpcf7_ak_\"><label>&#916;<textarea name=\"_wpcf7_ak_hp_textarea\" cols=\"45\" rows=\"8\" maxlength=\"100\"><\/textarea><\/label><input type=\"hidden\" id=\"ak_js_1\" name=\"_wpcf7_ak_js\" value=\"11\"\/><script>\ndocument.getElementById( \"ak_js_1\" ).setAttribute( \"value\", ( new Date() ).getTime() );\n<\/script>\n<\/p><input type='hidden' class='wpcf7-pum' value='{\"closepopup\":false,\"closedelay\":0,\"openpopup\":true,\"openpopup_id\":16052}' \/><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n      <p class=\"h13m-or\">or <a href=\"https:\/\/wa.me\/8618062945370\">WhatsApp +86 180 6294 5370<\/a> \u00b7 <a href=\"mailto:sales@aobosteel.com\">sales@aobosteel.com<\/a><\/p>\n    <\/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\n<p class=\"wp-block-paragraph\">H13 mold steel is the AISI designation for a chromium hot work tool steel also sold as <a href=\"https:\/\/aobosteel.com\/1-2344-tool-steel\/\">DIN 1.2344<\/a>, EN X40CrMoV5-1 and JIS SKD61. It arrives mill annealed, at 229 HBW maximum in the ISO 4957 delivery condition, and every cavity, core and insert is machined in that state [ISO 4957, Table 6]. The finished part is then hardened and tempered, and that second step is what puts the working surface at 45 to 50 HRC, the range the sources give for plastic injection molds [Tool Steels, Roberts and Krauss, p. 233]. A prehardened mold steel arrives already at its working hardness and never takes that step [Tool Steels, Properties and Performance, Mesquita, p. 212].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where H13 Belongs in a Mold<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A mold is not one block of one steel. The mold base and the general cavity usually come from a prehardened grade that is machined and put to work as delivered. H13 takes the positions where the surface has to survive heat, abrasive fillers or a long run of parts, and where a working hardness above 40 HRC is written on the drawing. The ranges below are the ones the sources give for this grade by position. They are starting points for a drawing, not a tempering schedule for the furnace.<\/p>\n\n\n\n<div class=\"wp-block-group is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-8e727e61 wp-block-group-is-layout-constrained\">\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Mold position<\/th><th>What H13 does there<\/th><th class=\"has-text-align-center\">Hardness<\/th><\/tr><\/thead><tbody><tr><td>Plastic injection mold cavities and cores<\/td><td>Carries the working hardness the source data gives for plastic molds<\/td><td class=\"has-text-align-center\">45&nbsp;to&nbsp;50&nbsp;HRC<\/td><\/tr><tr><td>Aluminium die casting dies<\/td><td>Meets molten aluminium where heat checking is the usual failure<\/td><td class=\"has-text-align-center\">44&nbsp;to&nbsp;48&nbsp;HRC<\/td><\/tr><tr><td>White metal die casting dies<\/td><td>Runs harder because the casting temperature is lower<\/td><td class=\"has-text-align-center\">47&nbsp;to&nbsp;49&nbsp;HRC<\/td><\/tr><tr><td>Brass die casting dies, medium runs<\/td><td>Takes the heavier thermal load at a lower hardness<\/td><td class=\"has-text-align-center\">38&nbsp;to&nbsp;43&nbsp;HRC<\/td><\/tr><tr><td>Mold and die tooling that must resist shock<\/td><td>Keeps toughness where impact is the failure mode<\/td><td class=\"has-text-align-center\">40&nbsp;to&nbsp;44&nbsp;HRC<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Working hardness by position. Sources, Tool Steels (Roberts and Krauss) p. 233 and Tool and Die Making Troubleshooter (Leed) Appendix A, pp. 220 to 221.<\/figcaption><\/figure>\n\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Working Hardness for Mold Work<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Out of the quench the steel is harder than any mold runs it. An austenitizing treatment at 1010 \u00b0C with an air or oil quench gives 48 to 56 HRC, and one table records 53 HRC for the same cycle [Heat Treaters Guide, pp. 604 and 613]. Tempering brings it down to the working figure. A double temper at 595 \u00b0C leaves 47 to 48 HRC. A triple temper at 540 \u00b0C still holds 53 HRC. Two tempers between 560 and 580 \u00b0C give 47 to 49 HRC, and a range from 595 to 675 \u00b0C walks the hardness from 52 down to 39 HRC [Heat Treaters Guide, p. 604; \u6a21\u5177\u70ed\u5904\u7406\u5e38\u89c1\u7f3a\u9677\u4e0e\u5bf9\u7b56, Table 2]. Pick the temper by the way the tool fails and by the section. Air cooling a 150 mm round leaves a lower tempered hardness at midradius than a 12.5 mm specimen, and a 300 mm round is lower again [Tool Steels, p. 235; Heat Treatment Selection and Application, p. 67].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H13 Mold Steel Against a Prehardened Mold Steel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A prehardened mold steel such as P20 mod, 1.2738 or 1.2311 is delivered at about 300 HBW, which is 40 HRC or less, and the cavity is machined and used at that hardness [Tool Steels, Properties and Performance, p. 212]. H13 is delivered annealed and takes the opposite route. The block is rough machined first, vacuum heat treated and tempered, and the finishing cuts follow the treatment [Tool Steels, Properties and Performance, p. 213]. That route costs two things. The steel itself costs more, and the vacuum treatment after rough machining adds a step and a schedule to the mold build. It buys a working surface above 40 HRC, higher polishability and etchability in the ESR refined blocks used for automotive lenses, and better corrosion resistance than P20 mod [Tool Steels, Properties and Performance, pp. 212 to 213, Fig. 6.13].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What H13 Mold Steel Does Not Cover<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Three limits come out of the source data. Wear resistance is medium, so a position where abrasion is the only failure mode belongs to a cold work grade [Tool and Die Making Troubleshooter, Appendix A, p. 220]. The steel softens quickly above 540 \u00b0C, which rules it out of tooling that runs hotter than that and points to a higher alloyed hot work grade [Heat Treaters Guide, p. 602]. Section size also works against it. An air cooled round of 150 mm and one of 300 mm both finish below a 12.5 mm specimen of the same steel, and a large block may not reach full hardness at all [Tool Steels, p. 235; Heat Treatment Selection and Application, p. 67]. A very large general purpose mold pays for the treatment step without needing it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ordering H13 Mold Steel for Insert Work<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We supply H13 in round bar, flat bar, plate and forged block, cut to the insert size on the order. The delivery condition is annealed, at 229 HBW maximum under ISO 4957, so the block machines before it is hardened [ISO 4957, Table 6]. Send the finished insert size rather than the size you machine from, since the section decides how much the mill has to take off and how long the delivery runs. Every batch travels with a mill test certificate to EN 10204 3.1 carrying the heat number, and the ultrasonic test follows the class named on the drawing. The <a href=\"https:\/\/aobosteel.com\/h13-tool-steel\/\">H13 tool steel supply page<\/a> carries the forms, tolerances and packing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The Data Behind H13 in Mold Work<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/aobosteel.com\/h13-steel-composition\/\">composition<\/a>, the <a href=\"https:\/\/aobosteel.com\/h13-steel-properties\/\">mechanical and physical figures<\/a>, the <a href=\"https:\/\/aobosteel.com\/h13-steel-heat-treatment\/\">full heat treatment cycle<\/a> and the <a href=\"https:\/\/aobosteel.com\/tool-steel-nitriding-guide\/\">nitriding procedure<\/a> each have their own page. This page stays on the mold side, on which position takes the grade and which hardness it runs at.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:13px;line-height:1.5\">Source, Tool Steels (Roberts and Krauss), pp. 233 to 239. Tool Steels, Properties and Performance (Mesquita), pp. 212 to 213. Heat Treaters Guide, Tool Steels, pp. 602 to 613. Heat Treatment Selection and Application. Tool and Die Making Troubleshooter (Leed), Appendix A, pp. 220 to 223. ISO 4957:2018, Table 6. \u6a21\u5177\u70ed\u5904\u7406\u5e38\u89c1\u7f3a\u9677\u4e0e\u5bf9\u7b56, Tables 1 and 2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">FAQ<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-30000000000\"><strong class=\"schema-faq-question\"><strong>What hardness should H13 run at in a plastic injection mold?<\/strong><\/strong> <p class=\"schema-faq-answer\">The sources give 45 to 50 HRC for plastic injection molds, with one table listing 47 to 49 HRC. Both sit well below the 48 to 56 HRC the steel reaches out of the quench, so the temper is what sets the working figure. [Tool Steels, p. 233; Heat Treaters Guide, p. 604]<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-question-30100000000\"><strong class=\"schema-faq-question\"><strong>Does H13 come ready to use?<\/strong><\/strong> <p class=\"schema-faq-answer\">No. It is supplied mill annealed at 229 HBW maximum under ISO 4957, with other tables listing 220 to 241 HB maximum. The insert is machined in that condition, then hardened from about 1010 \u00b0C and tempered to the working hardness. [ISO 4957, Table 6; Tool and Die Making Troubleshooter, Appendix A, pp. 221 and 223]<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-question-30200000000\"><strong class=\"schema-faq-question\"><strong>Why does a large insert end up softer than a small one?<\/strong><\/strong> <p class=\"schema-faq-answer\">Air cooling a 150 mm round leaves a lower tempered hardness at midradius than a 12.5 mm specimen, and a 300 mm round is lower again. A large block may not reach full hardness when it is air cooled. [Tool Steels, p. 235; Heat Treatment Selection and Application, p. 67]<\/p> <\/div><div class=\"schema-faq-section\" id=\"faq-question-30300000000\"><strong class=\"schema-faq-question\"><strong>Can H13 mold steel be nitrided?<\/strong><\/strong> <p class=\"schema-faq-answer\">Yes. Gas nitriding for 15 hours at 510 \u00b0C gives a case depth of 0.152 mm, and the sources note that preheating plus nitriding or a CVD coating improves resistance to heat checking. [Heat Treaters Guide, p. 604; Tool Steels, p. 239]<\/p> <\/div><\/div>\n\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>H13 mold steel is the AISI designation for a chromium hot work tool steel also sold as DIN 1.2344, EN X40CrMoV5-1 and JIS SKD61. It arrives mill annealed, at 229 HBW maximum in the ISO 4957 delivery condition, and every cavity, core and insert is machined in that state [ISO 4957, Table 6]. The finished [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-24775","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>H13 Mold Steel for Plastic Mold Inserts and Cores | Aobo Steel<\/title>\n<meta name=\"description\" content=\"H13 mold steel for inserts, cores and slides. 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Onde o AISI H13, DIN 1.2344 e SKD61 justificam o tratamento t\u00e9rmico extra e a dureza de servi\u00e7o.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/pt\/h13-mold-steel\/","og_locale":"pt_BR","og_type":"article","og_title":"H13 Mold Steel for Mold Inserts and Cores | Aobo Steel","og_description":"H13 mold steel for inserts, cores and slides. 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Both sit well below the 48 to 56 HRC the steel reaches out of the quench, so the temper is what sets the working figure. [Tool Steels, p. 233; Heat Treaters Guide, p. 604]","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/h13-mold-steel\/#faq-question-30100000000","position":2,"url":"https:\/\/aobosteel.com\/h13-mold-steel\/#faq-question-30100000000","name":"O H13 vem pronto para uso?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. It is supplied mill annealed at 229 HBW maximum under ISO 4957, with other tables listing 220 to 241 HB maximum. The insert is machined in that condition, then hardened from about 1010 \u00b0C and tempered to the working hardness. [ISO 4957, Table 6; Tool and Die Making Troubleshooter, Appendix A, pp. 221 and 223]","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/h13-mold-steel\/#faq-question-30200000000","position":3,"url":"https:\/\/aobosteel.com\/h13-mold-steel\/#faq-question-30200000000","name":"Por que um inserto grande acaba mais mole que um pequeno?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Air cooling a 150 mm round leaves a lower tempered hardness at midradius than a 12.5 mm specimen, and a 300 mm round is lower again. A large block may not reach full hardness when it is air cooled. [Tool Steels, p. 235; Heat Treatment Selection and Application, p. 67]","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/h13-mold-steel\/#faq-question-30300000000","position":4,"url":"https:\/\/aobosteel.com\/h13-mold-steel\/#faq-question-30300000000","name":"O a\u00e7o para moldes H13 pode ser nitretado?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. Gas nitriding for 15 hours at 510 \u00b0C gives a case depth of 0.152 mm, and the sources note that preheating plus nitriding or a CVD coating improves resistance to heat checking. [Heat Treaters Guide, p. 604; Tool Steels, p. 239]","inLanguage":"pt-BR"},"inLanguage":"pt-BR"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"H13 mold steel is the AISI designation for a chromium hot work tool steel also sold as DIN 1.2344, EN X40CrMoV5-1 and JIS SKD61. It arrives mill annealed, at 229 HBW maximum in the ISO 4957 delivery condition, and every cavity, core and insert is machined in that state [ISO 4957, Table 6]. The finished&hellip;","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"H13 mold steel is the AISI designation for a chromium hot work tool steel also sold as DIN 1.2344, EN X40CrMoV5-1 and JIS SKD61. It arrives mill annealed, at 229 HBW maximum in the ISO 4957 delivery condition, and every cavity, core and insert is machined in that state [ISO 4957, Table 6]. The finished&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/24775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/comments?post=24775"}],"version-history":[{"count":19,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/24775\/revisions"}],"predecessor-version":[{"id":24785,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/24775\/revisions\/24785"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/media?parent=24775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}