{"id":15860,"date":"2026-06-11T12:00:32","date_gmt":"2026-06-11T04:00:32","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15860"},"modified":"2026-10-22T14:37:43","modified_gmt":"2026-10-22T06:37:43","slug":"esr-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/esr-tool-steel\/","title":{"rendered":"Proveedor de acero para herramientas ESR | D2 y H13 ESR | Aobo Steel"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull is-light esr-cover\"><img loading=\"lazy\" decoding=\"async\" width=\"2400\" height=\"1000\" class=\"wp-block-cover__image-background wp-image-24145\" alt=\"1.2344 ESR hot work tool steel plates stacked for shipment, plate ends stenciled with grade and size\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2.jpg 2400w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2-300x125.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2-1024x427.jpg 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2-768x320.jpg 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2-1536x640.jpg 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2-2048x853.jpg 2048w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/banner-1-2344-esr-plates-v2-18x8.jpg 18w\" sizes=\"auto, (max-width: 2400px) 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=\"esr-banner\" data-noptimize=\"1\">\n\/* ESR banner + quote card. Every rule is scoped to this page's own class names. *\/\n\/* This template loads no cover-block layout CSS, and alignfull does not break out of the\n   entry content here, so the cover's own box, image layer and full-bleed breakout are\n   declared explicitly below (same shape as \/tool-steels\/). *\/\n.esr-cover{position:relative;isolation:isolate;overflow:hidden;display:block;padding:0!important;\n  min-height:560px;width:auto;max-width:none}\n.entry-content .esr-cover{margin-left:calc(50% - 50vw)!important;margin-right:calc(50% - 50vw)!important;\n  max-width:none!important;width:auto!important}\n.esr-cover .wp-block-cover__image-background{position:absolute;inset:0;z-index:0;width:100%;height:100%;\n  object-fit:cover;object-position:center 50%}\n.esr-cover .wp-block-cover__background{position:absolute;inset:0;z-index:0;background:transparent!important}\n.esr-cover .wp-block-cover__inner-container{position:relative;z-index:3;width:100%!important;max-width:1240px!important;\n  margin:0 auto!important;padding:0!important}\n\/* No overlay element: the left-to-right darkening is baked into the banner JPEG itself,\n   because on this template an absolutely-positioned scrim can paint above the copy. *\/\n.esr-hero{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 332px;gap:40px;\n  align-items:center;padding:42px 24px 46px}\n.esr-crumb{margin:0 0 14px!important;font-size:13px;line-height:1.4;color:#cfdced!important}\n.esr-crumb a{color:#cfdced!important;text-decoration:none}\n.esr-crumb a:hover{color:#fff!important;text-decoration:underline}\n.esr-h1{margin:0 0 14px!important;padding:0!important;font-size:clamp(28px,3.1vw,44px)!important;line-height:1.12!important;\n  font-weight:800!important;letter-spacing:-.01em;text-transform:none!important;color:#fff!important;\n  text-shadow:0 2px 16px rgba(0,0,0,.85),0 1px 3px rgba(0,0,0,.9)}\n.esr-lede{margin:0!important;max-width:56ch;font-size:16.5px;line-height:1.6;color:#f3f7fd!important;\n  text-shadow:0 1px 3px rgba(0,0,0,.95),0 2px 12px rgba(0,0,0,.8)}\n.esr-form-card{position:relative;z-index:6;background:#fff!important;border-radius:12px;padding:16px 16px 14px;\n  box-shadow:0 16px 44px rgba(0,0,0,.38);color:#0f1620;width:100%;max-width:332px;justify-self:end;text-shadow:none}\n.esr-form-h{margin:0 0 4px!important;font-size:18px!important;line-height:1.25!important;font-weight:700!important;color:#0f1620!important}\n.esr-form-sub{margin:0 0 12px!important;font-size:12.6px;line-height:1.45;color:#5a6b7d!important}\n.esr-form-card form p{margin:0 0 7px}\n.esr-form-card input[type=text],.esr-form-card input[type=email],.esr-form-card input[type=tel],.esr-form-card textarea{\n  width:100%;font:inherit;font-size:13.4px;color:#0f1620;background:#f6f8fb;border:1px solid #cfd9e6;\n  border-radius:6px;padding:8px 10px;margin:0}\n.esr-form-card textarea{resize:vertical;min-height:62px}\n.esr-form-card input[type=submit]{width:100%;background:#074fd0;color:#fff;border:0;border-radius:6px;\n  padding:11px 14px;font-size:14.6px;font-weight:700;font-family:inherit;cursor:pointer}\n.esr-form-card input[type=submit]:hover{background:#063c9e}\n.esr-form-card .cf-turnstile{margin:0 0 8px}\n.esr-form-card .wpcf7-form-control-wrap{display:block}\n.esr-form-card .wpcf7-response-output{margin:8px 0 0!important;font-size:12.5px}\n.esr-alt{margin:8px 0 0!important;font-size:12.4px;line-height:1.5;color:#5a6b7d!important}\n.esr-alt a{color:#005fcf!important;text-decoration:none}\n@media(max-width:1000px){\n  .esr-hero{grid-template-columns:1fr;gap:20px;padding:30px 18px 32px}\n  .esr-form-card{max-width:420px;justify-self:start}\n  .esr-h1{font-size:30px!important}\n}\n@media(max-width:700px){.esr-cover{min-height:0}.esr-cover .wp-block-cover__image-background{object-position:42% 45%}}\n<\/style>\n\n<div class=\"esr-hero\">\n  <div class=\"esr-copy\">\n    <p class=\"esr-crumb\"><a href=\"https:\/\/aobosteel.com\/\">Home<\/a> &gt; <a href=\"https:\/\/aobosteel.com\/tool-steels\/\">Tool Steel Catalog<\/a> &gt; ESR Tool Steel<\/p>\n    <h1 class=\"esr-h1\">ESR Tool Steel for Longer Die Life and Mirror Finish<\/h1>\n    <p class=\"esr-lede\">Aobo Steel supplies electroslag remelted D2 and H13 for buyers who need higher purity, better isotropy, and reliable mirror polishing. We supply in bulk, with materials verified before shipment, and an MOQ of 5 tons.<\/p>\n  <\/div>\n  <div class=\"esr-form-card\">\n    <p class=\"esr-form-h\">Check ESR stock &amp; price<\/p>\n    <p class=\"esr-form-sub\">Send the grade, size, quantity and destination port. We reply with price, ESR premium, and lead time.<\/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=\"\/es\/wp-json\/wp\/v2\/pages\/15860#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=\"6.2.3\" \/><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=\"218\"\/><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=\"esr-alt\">or <a href=\"https:\/\/wa.me\/8618062945370\">WhatsApp +86 180 6294 5370<\/a> &middot; <a href=\"mailto:sales@aobosteel.com\">sales@aobosteel.com<\/a><\/p>\n  <\/div>\n<\/div>\n\n<script>\n(function(){\n  function patchPum(){\n    var els=document.querySelectorAll('.esr-form-card input[name=\"wpcf7-pum\"]');\n    for(var i=0;i<els.length;i++){\n      els[i].value='{\"closepopup\":false,\"closedelay\":0,\"openpopup\":false,\"openpopup_id\":0}';\n    }\n  }\n  if(document.readyState!=='loading'){patchPum();}else{document.addEventListener('DOMContentLoaded',patchPum);}\n})();\n<\/script>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">ESR grades cost around 250-300 USD per ton more than conventional electric-furnace material. The premium covers the secondary refining step, not branding. Below, we set out exactly when that step is worth paying for and when standard grade does the same job.<\/p>\n\n\n\n<h2 id=\"h-what-the-remelting-step-actually-buys-you\" class=\"wp-block-heading\">What the remelting step actually buys you<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Conventional tool steel carries non-metallic inclusions such as oxides and sulfides, along with center segregation in larger sections. These are the origins of chipping, fatigue cracking, and polishing defects. Electroslag remelting passes the steel through a reactive slag pool a second time, which removes sulfur, dissolves inclusions, and rebuilds the ingot with a uniform, directionally solidified structure.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full esr-figure\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/what-is-ESR.jpg\" alt=\"Electroslag remelting furnace at a partner mill\" class=\"wp-image-2787\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/what-is-ESR.jpg 1000w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/what-is-ESR-300x300.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/what-is-ESR-150x150.jpg 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/what-is-ESR-768x768.jpg 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/what-is-ESR-12x12.jpg 12w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">electroslag remelting equipment at a partner mill<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The result is a cleaner, denser, more isotropic material that holds a mirror finish and resists premature tool failure. If you want the full metallurgy, including how ESR compares with vacuum arc remelting, see <a href=\"https:\/\/aobosteel.com\/what-is-electroslag-remelting-esr\/\">how ESR works and how it compares to VAR<\/a>.<\/p>\n\n\n\n<h2 id=\"h-d2-esr-and-h13-esr\" class=\"wp-block-heading\">D2 ESR and H13 ESR<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">These are the two grades we most commonly supply in electroslag remelted quality. Both are delivered in an annealed condition. We do not supply final heat treatment, so the working hardness shown below is what your heat treater achieves, not the delivery hardness.<\/p>\n\n\n\n<style id=\"esr-body-components\" data-noptimize=\"1\">\n\/* Two grade cards, style copied from the grade cards on \/tool-steels\/, itself the house card\n   baseline from \/tool-steel-heat-treatment-guide\/: white, square corners, 1px hairline\n   border, soft shadow, 20px padding, and no hover state on the card itself. *\/\n.esr-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:26px 0 32px}\n.esr-gcard{background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:0;padding:20px;\n  box-shadow:0 12px 32px rgba(0,0,0,.04);display:flex;flex-direction:column;min-width:0}\n.esr-gmedia{margin:0 0 16px;aspect-ratio:16\/9;overflow:hidden;background:#f3f6fb}\n.esr-gmedia img{display:block;width:100%;height:100%;object-fit:cover}\n.esr-gtype{margin:0 0 8px!important;color:#6b7280;font-size:11.5px;font-weight:600;letter-spacing:.08em;\n  text-transform:uppercase;line-height:1.4}\n.esr-gcard h3{margin:0 0 14px!important;color:#0b0b0b!important;font-size:23px!important;line-height:1.25!important;\n  font-weight:700!important;letter-spacing:-.01em;text-transform:none!important}\n.esr-spec{display:flex;justify-content:space-between;gap:14px;padding:8px 0;border-top:1px solid #eef0f3;\n  font-size:15px;line-height:1.5}\n.esr-spec .l{color:#6b7280;flex-shrink:0}\n.esr-spec .v{color:#0b0b0b;font-weight:700;text-align:right}\n.esr-gcard p.esr-use{color:#0b0b0b!important;line-height:1.7!important;font-size:17px!important;margin:16px 0 18px!important}\n.esr-gacts{margin-top:auto;display:flex;gap:12px;align-items:stretch}\n.esr-grfq,.esr-glink{min-height:0;border-radius:999px;padding:10px 12px;font-size:14px;line-height:1.25;\n  text-decoration:none;display:inline-flex;align-items:center;justify-content:center;text-align:center;cursor:pointer}\n.esr-grfq{flex:1 1 0;background:#074fd0;border:1px solid #074fd0;color:#fff;font-weight:700}\n.esr-glink{flex:1 1 0;background:transparent;border:1px solid #0b0b0b;color:#0b0b0b;font-weight:400}\n\/* the source figure is a 1000px square photo; cap it so it reads as an illustration, not a page-filler *\/\n.wp-block-image.esr-figure{max-width:620px;margin:26px auto 28px}\n.esr-grfq:hover{background:#063c9e;border-color:#063c9e;color:#fff}\n.esr-glink:hover{background:#f4f8ff;color:#0b0b0b}\n\/* core\/columns ships no flex rule on this theme, so the two-panel selector takes its\n   layout from page-scoped rules instead of from the block library. *\/\n.entry-content .esr-cols{display:grid!important;grid-template-columns:1fr 1fr;gap:24px;margin:22px 0 20px;align-items:stretch;\n  padding-top:0!important;padding-right:0!important;padding-bottom:0!important;padding-left:0!important}\n.esr-cols .wp-block-column{background:#f7faff;border:1px solid #e3ecf9;border-radius:8px;padding:20px 22px;margin:0}\n.esr-cols h3{margin:0 0 10px!important}\n.esr-cols ul{margin:0;padding-left:20px}\n.esr-cols li{margin:0 0 8px}\n@media(max-width:920px){.esr-cards{grid-template-columns:1fr}}\n@media(max-width:700px){\n  .entry-content .esr-cols{grid-template-columns:1fr}\n  .esr-gacts{flex-direction:column}\n}\n<\/style>\n\n<div class=\"esr-cards\">\n  <div class=\"esr-gcard\">\n    <div class=\"esr-gmedia\"><img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/D2-tool-steel.avif\" alt=\"D2 ESR tool steel flat bar\" loading=\"lazy\"><\/div>\n    <p class=\"esr-gtype\">1.2379 and SKD11<\/p>\n    <h3>D2 ESR<\/h3>\n    <div class=\"esr-spec\"><span class=\"l\">Type<\/span><span class=\"v\">Cold work tool steel<\/span><\/div>\n    <div class=\"esr-spec\"><span class=\"l\">Working hardness<\/span><span class=\"v\">58 to 60 HRC<\/span><\/div>\n    <div class=\"esr-spec\"><span class=\"l\">Delivery condition<\/span><span class=\"v\">Annealed<\/span><\/div>\n    <div class=\"esr-spec\"><span class=\"l\">ESR benefit<\/span><span class=\"v\">Purity and fatigue life<\/span><\/div>\n    <p class=\"esr-use\">Best where high-impact cold work tooling fails by chipping or fatigue cracking, such as blanking dies, stamping dies, and cold forming tools. The cleaner ESR structure removes the inclusion sites that start those cracks.<\/p>\n    <div class=\"esr-gacts\">\n      <a class=\"esr-grfq popmake-16052\" href=\"https:\/\/aobosteel.com\/contact\/\">Send Inquiry<\/a>\n      <a class=\"esr-glink\" href=\"https:\/\/aobosteel.com\/d2-tool-steel\/\">View Details<\/a>\n    <\/div>\n  <\/div>\n  <div class=\"esr-gcard\">\n    <div class=\"esr-gmedia\"><img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H13-STEEL-FLAT-BAR.avif\" alt=\"H13 ESR tool steel flat bar\" loading=\"lazy\"><\/div>\n    <p class=\"esr-gtype\">1.2344 and SKD61<\/p>\n    <h3>H13 ESR<\/h3>\n    <div class=\"esr-spec\"><span class=\"l\">Type<\/span><span class=\"v\">Hot work tool steel<\/span><\/div>\n    <div class=\"esr-spec\"><span class=\"l\">Working hardness<\/span><span class=\"v\">44 to 52 HRC<\/span><\/div>\n    <div class=\"esr-spec\"><span class=\"l\">Delivery condition<\/span><span class=\"v\">Annealed<\/span><\/div>\n    <div class=\"esr-spec\"><span class=\"l\">ESR benefit<\/span><span class=\"v\">Isotropy and thermal shock<\/span><\/div>\n    <p class=\"esr-use\">Best where tooling experiences severe thermal cycling, such as die-casting dies, hot-forging dies, and extrusion tooling. The non-segregated ESR structure enhances transverse toughness and thermal shock resistance, thereby extending die life. For extrusion specifically, the ESR-melted 1.2344 supply program is set out in the <a href=\"https:\/\/aobosteel.com\/1-2344-esr-h13-aluminum-extrusion-distributors\/\">1.2344 ESR H13 extrusion supply guide<\/a>.<\/p>\n    <div class=\"esr-gacts\">\n      <a class=\"esr-grfq popmake-16052\" href=\"https:\/\/aobosteel.com\/contact\/\">Send Inquiry<\/a>\n      <a class=\"esr-glink\" href=\"https:\/\/aobosteel.com\/h13-tool-steel\/\">View Details<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<h2 id=\"h-what-does-the-esr-tool-steel-cost-over-conventional-steel\" class=\"wp-block-heading\">What does the ESR tool steel cost over conventional steel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The premium for electroslag remelted tool steel is roughly 250-300 USD per ton over conventional electric-furnace material. The exact figure moves with grade, section size, and order volume, so treat it as a planning range rather than a fixed price. What you are paying for is the secondary refining step that strips out sulfur and non-metallic inclusions. That single step delivers the higher purity, isotropy, and polishability, so the value of the premium depends entirely on whether your application needs those properties.<\/p>\n\n\n\n<h2 id=\"h-when-esr-is-worth-it-and-when-conventional-is-enough\" class=\"wp-block-heading\">When ESR is worth it, and when conventional is enough<\/h2>\n\n\n\n<div class=\"wp-block-columns esr-cols is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"h-choose-esr-when\" class=\"wp-block-heading\">Choose ESR when<\/h3>\n\n<ul><li>The tool needs a mirror or high gloss surface, such as optical parts and transparent plastic molds.<\/li><li>The failure mode is chipping or fatigue cracking under high impact.<\/li><li>You are machining large cross sections where center segregation is a real risk.<\/li><li>Transverse properties matter because the tool carries multidirectional stress.<\/li><\/ul><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"h-conventional-is-enough-when\" class=\"wp-block-heading\">Conventional is enough when<\/h3>\n\n<ul><li>The application has no polishing or surface finish requirement.<\/li><li>Sections are small, and segregation is not a concern.<\/li><li>The run is cost-sensitive, and standard purity already performs well in service.<\/li><li>You are prototyping or running short volume where the premium is hard to justify.<\/li><\/ul><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>ESR grades cost around 250-300 USD per ton more than conventional electric-furnace material. The premium covers the secondary refining step, not branding. Below, we set out exactly when that step is worth paying for and when standard grade does the same job. What the remelting step actually buys you Conventional tool steel carries non-metallic inclusions [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15865,"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":"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 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-15860","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel - AoboSteel<\/title>\n<meta name=\"description\" content=\"Aobo Steel supplies ESR D2 and H13 tool steel for high purity and mirror polishing. Around 250 to 300 USD per ton premium. MOQ 5 tons.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/es\/esr-tool-steel\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel\" \/>\n<meta property=\"og:description\" content=\"Aobo Steel supplies ESR D2 and H13 tool steel for high purity and mirror polishing. Around 250 to 300 USD per ton premium. MOQ 5 tons.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/es\/esr-tool-steel\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-22T06:37:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"1254\" \/>\n\t<meta property=\"og:image:height\" content=\"1254\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel\",\"datePublished\":\"2026-06-11T04:00:32+00:00\",\"dateModified\":\"2026-10-22T06:37:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/\"},\"wordCount\":638,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ESR.avif\",\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/\",\"name\":\"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel - AoboSteel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ESR.avif\",\"datePublished\":\"2026-06-11T04:00:32+00:00\",\"dateModified\":\"2026-10-22T06:37:43+00:00\",\"description\":\"Aobo Steel supplies ESR D2 and H13 tool steel for high purity and mirror polishing. Around 250 to 300 USD per ton premium. MOQ 5 tons.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ESR.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/ESR.avif\",\"width\":1254,\"height\":1254},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/esr-tool-steel\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/es\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Proveedor de acero para herramientas ESR | D2 y H13 ESR | Aobo Steel - AoboSteel","description":"Aobo Steel suministra acero para herramientas ESR D2 y H13 de alta pureza y apto para pulido espejo. Prima de unos 250 a 300 USD por tonelada. MOQ 5 toneladas.","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\/es\/esr-tool-steel\/","og_locale":"es_ES","og_type":"article","og_title":"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel","og_description":"Aobo Steel supplies ESR D2 and H13 tool steel for high purity and mirror polishing. Around 250 to 300 USD per ton premium. MOQ 5 tons.","og_url":"https:\/\/aobosteel.com\/es\/esr-tool-steel\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-10-22T06:37:43+00:00","og_image":[{"width":1254,"height":1254,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Tiempo de lectura":"4 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/esr-tool-steel\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel","datePublished":"2026-06-11T04:00:32+00:00","dateModified":"2026-10-22T06:37:43+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/esr-tool-steel\/"},"wordCount":638,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif","inLanguage":"es"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/esr-tool-steel\/","url":"https:\/\/aobosteel.com\/esr-tool-steel\/","name":"Proveedor de acero para herramientas ESR | D2 y H13 ESR | Aobo Steel - AoboSteel","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif","datePublished":"2026-06-11T04:00:32+00:00","dateModified":"2026-10-22T06:37:43+00:00","description":"Aobo Steel suministra acero para herramientas ESR D2 y H13 de alta pureza y apto para pulido espejo. Prima de unos 250 a 300 USD por tonelada. MOQ 5 toneladas.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/esr-tool-steel\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif","width":1254,"height":1254},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/esr-tool-steel\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"ESR Tool Steel Supplier | D2 and H13 ESR | Aobo Steel"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"AoboSteel","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"AoboSteel","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"Evan","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"ESR grades cost around 250-300 USD per ton more than conventional electric-furnace material. The premium covers the secondary refining step, not branding. Below, we set out exactly when that step is worth paying for and when standard grade does the same job. What the remelting step actually buys you Conventional tool steel carries non-metallic inclusions&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/ESR-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"ESR grades cost around 250-300 USD per ton more than conventional electric-furnace material. The premium covers the secondary refining step, not branding. Below, we set out exactly when that step is worth paying for and when standard grade does the same job. What the remelting step actually buys you Conventional tool steel carries non-metallic inclusions&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/15860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/comments?post=15860"}],"version-history":[{"count":3,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/15860\/revisions"}],"predecessor-version":[{"id":24153,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/15860\/revisions\/24153"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media\/15865"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media?parent=15860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}