{"id":9390,"date":"2025-08-03T00:20:47","date_gmt":"2025-08-02T16:20:47","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9390"},"modified":"2026-09-27T13:00:55","modified_gmt":"2026-09-27T05:00:55","slug":"h21-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/h21-tool-steel\/","title":{"rendered":"H21 Tool Steel | 1.2581 | SKD7 Supplier"},"content":{"rendered":"<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"632\" class=\"wp-block-cover__image-background wp-image-7233 size-full\" alt=\"Bulk tool steel bar stock in the Aobo Steel warehouse\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3.webp 1920w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-300x99.webp 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-768x253.webp 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1536x506.webp 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-18x6.webp 18w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#4e4b40\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-uagb-container uagb-block-29fc5c3c alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c196a237\"><h6 class=\"uagb-heading-text\"><a href=\"https:\/\/aobosteel.com\/es\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">Hogar<\/mark> <\/a>&gt; <a href=\"https:\/\/aobosteel.com\/es\/tool-steels\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">cat\u00e1logo de acero para herramientas<\/mark><u> <\/u><\/a>&gt; Acero para herramientas H21<\/h6><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-d1ce38c5\"><h5 class=\"uagb-heading-text\"><em>Aobo Steel | Proveedor global de acero para herramientas en China<\/em><\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-5b6189ba\"><h2 class=\"uagb-heading-text\">Acero para herramientas AISI H21 | 1.2581 | SKD5 Acero para trabajo en caliente de alto tungsteno<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-914bcd03\"><h5 class=\"uagb-heading-text\">\u2713100% Control de calidad probado por ultrasonidos | SEP 1921-82 Clase D\/d garantizado<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-84cd4af9\"><h5 class=\"uagb-heading-text\">\u2713Optimizado para troqueles de extrusi\u00f3n en caliente y fundici\u00f3n de lat\u00f3n | Resistencia superior al calor<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-20e20150\"><h5 class=\"uagb-heading-text\">\u2713Entrega en estado recocido<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-33ee52f8\"><h5 class=\"uagb-heading-text\">\u2713Superficie: Escama negra, torneado, acabado fresado o pulido<\/h5><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Consulta r\u00e1pida sobre el material H21<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">El acero para herramientas H21 es un acero para herramientas de trabajo en caliente base tungsteno, clasificado dentro del grupo H de AISI. Estos tipos de aceros se encuentran entre las primeras opciones de alta aleaci\u00f3n desarrolladas para aplicaciones exigentes de herramientas a alta temperatura. <\/p>\n\n\n\n<h2 id=\"1-eael-table-of-content\" class=\"wp-block-heading\">1. Composici\u00f3n qu\u00edmica del acero para herramientas H21<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El rendimiento del acero H21 est\u00e1 determinado en gran medida por sus elementos de aleaci\u00f3n. Una composici\u00f3n t\u00edpica incluye:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Carbono (C):<\/strong>&nbsp;0.26 % \u2013 0.36 % (Proporciona templabilidad y resistencia al desgaste)<\/li>\n\n\n\n<li><strong>Manganeso (Mn):<\/strong>&nbsp;0.15 % \u2013 0.40 % (Mejora la templabilidad, act\u00faa como desoxidante\/desulfurante)<\/li>\n\n\n\n<li><strong>Silicio (Si):<\/strong>&nbsp;0.15 % \u2013 0.50 % (Aumenta la resistencia y la dureza, act\u00faa como desoxidante)<\/li>\n\n\n\n<li><strong>Cromo (Cr):<\/strong>&nbsp;3.00 % \u2013 3.75 % (Mejora la resistencia a la oxidaci\u00f3n y corrosi\u00f3n a alta temperatura)<\/li>\n\n\n\n<li><strong>Vanadio (V):<\/strong>&nbsp;0.30 % \u2013 0.60 % (Forma carburos duros, aumentando la resistencia al desgaste y la resistencia en caliente)<\/li>\n\n\n\n<li><strong>Tungsteno (W):<\/strong>&nbsp;8.50 % \u2013 10.00 % (Elemento clave para dureza en caliente, resistencia a alta temperatura y resistencia al desgaste)<\/li>\n<\/ul>\n\n\n\n<h2 id=\"2-eael-table-of-content\" class=\"wp-block-heading\">2. Propiedades del acero para herramientas H21<\/h2>\n\n\n\n<h3 id=\"3-eael-table-of-content\" class=\"wp-block-heading\">2.1 Dureza y resistencia al calor<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">El acero H21 es reconocido por su buena resistencia al calor y su capacidad para mantener la dureza a temperaturas elevadas, un factor cr\u00edtico en aplicaciones de trabajo en caliente.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dureza despu\u00e9s del revenido:<\/strong>&nbsp;Despu\u00e9s de la austenizaci\u00f3n y <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-tempering-chart\/\">templado<\/a> (por ejemplo, 2 horas a 595 \u00b0C \/ 1100 \u00b0F), se puede alcanzar una dureza de aproximadamente 529 HB. Aumentar la temperatura de revenido (por ejemplo, a 650 \u00b0C \/ 1200 \u00b0F) reduce la dureza a aproximadamente 437 HB.<\/li>\n\n\n\n<li><strong>Dureza en caliente:<\/strong>&nbsp;A temperaturas de operaci\u00f3n, la dureza disminuye. Por ejemplo, la dureza en caliente podr\u00eda ser de alrededor de 280 HB a 595 \u00b0C (1100 \u00b0F) y 211 HB a 650 \u00b0C (1200 \u00b0F). (Basado en datos t\u00edpicos con una dureza inicial a temperatura ambiente de 444 HB).<\/li>\n<\/ul>\n\n\n\n<h3 id=\"4-eael-table-of-content\" class=\"wp-block-heading\">2.2 Tenacidad y ductilidad<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Si bien ofrece buena resistencia en caliente, la tenacidad y la resistencia al impacto de H21 son generalmente menores en comparaci\u00f3n con los aceros base cromo&nbsp;<a href=\"https:\/\/aobosteel.com\/es\/hot-work-tool-steels\/\">hot-work steels<\/a>, como&nbsp;<a href=\"https:\/\/aobosteel.com\/es\/h11-tool-steel\/\">H11<\/a>&nbsp;o&nbsp;<a href=\"https:\/\/aobosteel.com\/es\/h13-tool-steel\/\">H13<\/a>. Sus caracter\u00edsticas de impacto tambi\u00e9n se consideran inferiores a las de H19.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La temperatura de revenido elegida y la velocidad de enfriamiento despu\u00e9s del temple, como el temple en aceite <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-heat-treatment-guide\/\">temple <\/a>frente a un enfriamiento m\u00e1s lento, influyen significativamente en la tenacidad al impacto (Izod o Charpy V-notch).<\/li>\n\n\n\n<li>Las propiedades torsionales pueden variar significativamente seg\u00fan los par\u00e1metros espec\u00edficos de tratamiento t\u00e9rmico utilizados para alcanzar la dureza objetivo, t\u00edpicamente dentro del rango de 42-55 HRC.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns 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<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"810\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H21-TOOL-STEEL.avif\" alt=\"H21 TOOL STEEL\" class=\"wp-image-9156\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H21-TOOL-STEEL.avif 810w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H21-TOOL-STEEL-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H21-TOOL-STEEL-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H21-TOOL-STEEL-768x768.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H21-TOOL-STEEL-12x12.avif 12w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><figcaption class=\"wp-element-caption\">acero para herramientas H21<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-ast-global-color-0-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\"><strong>\u00bfEst\u00e1 buscando acero para herramientas H21? Complete el siguiente formulario para contactarnos hoy.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\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\/9390#wpcf7-f16042-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Formulario de contacto\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/es\/wp-json\/wp\/v2\/pages\/9390#wpcf7-f16042-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16042\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><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<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=\"Su nombre *\" 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=\"Correo electr\u00f3nico *\" 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=\"Mensaje *\" name=\"your-message\"><\/textarea><\/span>\n<\/p>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Enviar consulta\" \/>\n<\/p><p style=\"display: none !important;\" class=\"akismet-fields-container\" data-prefix=\"_wpcf7_ak_\"><label>\u0394<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=\"170\"\/><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<input type=\"hidden\" name=\"trp-form-language\" value=\"es\"\/><\/form>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 id=\"5-eael-table-of-content\" class=\"wp-block-heading\">3. Tratamiento t\u00e9rmico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lograr el rendimiento \u00f3ptimo del acero para herramientas H21 depende en gran medida de un proceso preciso de tratamiento t\u00e9rmico. Este procedimiento desarrolla la dureza, la resistencia al desgaste y la tenacidad necesarias para aplicaciones exigentes de trabajo en caliente.<\/p>\n\n\n\n<h3 id=\"6-eael-table-of-content\" class=\"wp-block-heading\">3.1 Precalentamiento<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Antes del proceso principal de temple, el acero para herramientas H21 debe precalentarse cuidadosamente.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Temperatura:<\/strong>&nbsp;Calentar uniformemente a 760\u2013815 \u00b0C (1400\u20131500 \u00b0F).<\/li>\n\n\n\n<li><strong>Prop\u00f3sito:<\/strong>&nbsp;Este paso crucial minimiza el choque t\u00e9rmico y previene el agrietamiento, especialmente en componentes con formas complejas o espesores variables. El calentamiento lento y uniforme asegura que la temperatura se distribuya uniformemente en todo el acero, prepar\u00e1ndolo para las altas temperaturas de la austenizaci\u00f3n.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"7-eael-table-of-content\" class=\"wp-block-heading\">3.2 Austenizaci\u00f3n (endurecimiento)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Despu\u00e9s del precalentamiento, el acero se lleva a la temperatura de austenizaci\u00f3n.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Temperatura:<\/strong>&nbsp;Calentar a 1095\u20131205 \u00b0C.<\/li>\n\n\n\n<li><strong>Prop\u00f3sito:<\/strong>\u00a0En esta etapa, la microestructura del acero se transforma en austenita. Esto permite que el carbono y los elementos de aleaci\u00f3n cr\u00edticos, como el tungsteno (W) y el cromo (Cr), se disuelvan en la estructura, lo cual es fundamental para alcanzar la dureza al enfriar.<\/li>\n<\/ul>\n\n\n\n<h4 id=\"8-eael-table-of-content\" class=\"wp-block-heading\">Mantenimiento a la temperatura de austenizaci\u00f3n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Mantener el acero a la temperatura de austenizaci\u00f3n (remojo) es vital.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Duraci\u00f3n:<\/strong>&nbsp;T\u00edpicamente de 2 a 5 horas, dependiendo del espesor de la secci\u00f3n transversal (permita tiempo suficiente, por ejemplo, 1 hora por pulgada de espesor).<\/li>\n\n\n\n<li><strong>Prop\u00f3sito:<\/strong>&nbsp;El alto contenido de tungsteno y cromo de H21 forma carburos estables. Un tiempo de remojo suficiente asegura que estos carburos se disuelvan completamente y se distribuyan uniformemente dentro de la austenita, lo que conduce a una estructura uniforme lista para el temple.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"9-eael-table-of-content\" class=\"wp-block-heading\">3.3 Temple (enfriamiento)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">El enfriamiento r\u00e1pido transforma la austenita en acero martens\u00edtico duro.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u00e9todos:<\/strong>&nbsp;El acero H21 se puede templar en aire o en aceite.<\/li>\n\n\n\n<li><strong>Consideraciones:<\/strong>&nbsp;Debido a su alta templabilidad, H21 se endurece f\u00e1cilmente incluso con un enfriamiento m\u00e1s lento al aire. El temple al aire a menudo se prefiere ya que reduce significativamente el riesgo de distorsi\u00f3n y agrietamiento por temple en comparaci\u00f3n con el temple en aceite m\u00e1s severo, especialmente para piezas grandes o intrincadas. El temple en aceite se puede utilizar si la dureza m\u00e1xima es el objetivo principal. La velocidad de enfriamiento debe ser lo suficientemente r\u00e1pida para prevenir la formaci\u00f3n de estructuras m\u00e1s blandas, como perlita o bainita.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"10-eael-table-of-content\" class=\"wp-block-heading\">3.4 Templado<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">El acero H21 templado es extremadamente duro pero tambi\u00e9n fr\u00e1gil. El revenido es necesario para refinar sus propiedades.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Temperatura:<\/strong>&nbsp;Recalentar el acero a 595\u2013675 \u00b0C.<\/li>\n\n\n\n<li><strong>Prop\u00f3sito:<\/strong>&nbsp;El revenido reduce la fragilidad y mejora significativamente la tenacidad y la ductilidad mientras retiene una dureza sustancial. La temperatura y el tiempo espec\u00edficos utilizados determinar\u00e1n el equilibrio final entre dureza y tenacidad.<\/li>\n\n\n\n<li><strong>M\u00faltiples temperamentos:<\/strong>&nbsp;Para aceros para herramientas de alta aleaci\u00f3n como H21, es pr\u00e1ctica com\u00fan realizar dos o m\u00e1s ciclos de revenido. Esto asegura la estabilidad estructural, transforma cualquier austenita retenida y puede contribuir al endurecimiento secundario, mejorando a\u00fan m\u00e1s el rendimiento a temperaturas elevadas.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Tabla de dureza y temperatura de revenido para acero H21<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Temperatura de revenido<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Rockwell C<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Reci\u00e9n templado<\/td><td class=\"has-text-align-center\" data-align=\"center\">55<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">600 \u00b0F\/315 \u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">51<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">700\u00b0F\/370\u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">52<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">800\u00b0F\/425\u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">52<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">900 \u00b0F\/480 \u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">54<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1000 \u00b0F\/540 \u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">54<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1100 \u00b0F\/595 \u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">51<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1200 \u00b0F\/650 \u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">40<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1300\u00b0F\/705\u00b0C<\/td><td class=\"has-text-align-center\" data-align=\"center\">32<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Condiciones experimentales: 1. TEMPERATURA DE PRECALENTAMIENTO 1500 \u00b0F\/815 \u00b0C 2. TEMPERATURA DE TEMPLE 2125 \u00b0F\/1160 \u00b0C 3. TEMPLE EN ACEITE O SAL 4. QU\u00cdMICA Carbono 0.33 % Manganeso 0.25 % Silicio 0.45 % Cromo 3.30 % Vanadio 0.45 % Tungsteno 9.15 %<\/figcaption><\/figure>\n\n\n\n<h3 id=\"11-eael-table-of-content\" class=\"wp-block-heading\">3.5 Controles importantes del proceso<\/h3>\n\n\n\n<h4 id=\"12-eael-table-of-content\" class=\"wp-block-heading\">3.5.1 Prevenci\u00f3n de la descarburaci\u00f3n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">El acero H21 es propenso a la&nbsp;descarburaci\u00f3n, o la p\u00e9rdida de carbono de la superficie, a altas temperaturas de tratamiento t\u00e9rmico, lo que resulta en una capa superficial blanda y d\u00e9bil.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Soluci\u00f3n:<\/strong>&nbsp;Las medidas de protecci\u00f3n son esenciales durante la austenizaci\u00f3n. Esto incluye el uso de hornos de atm\u00f3sfera controlada, ba\u00f1os de sal o envolver las piezas en material protector como l\u00e1mina de acero inoxidable.<\/li>\n<\/ul>\n\n\n\n<h4 id=\"13-eael-table-of-content\" class=\"wp-block-heading\">3.5.2 Enfriamiento despu\u00e9s de la forja<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Debido a la alta templabilidad del H21, las piezas forjadas deben enfriarse lentamente (por ejemplo, enfriamiento en horno o enterramiento en aislante) inmediatamente despu\u00e9s de la operaci\u00f3n de forja.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Raz\u00f3n:<\/strong>&nbsp;Evite el normalizado (enfriamiento al aire desde alta temperatura), ya que esto puede causar que el acero se endurezca parcial o totalmente, lo que lleva a fragilidad y posible agrietamiento antes del proceso previsto de temple y revenido. El enfriamiento lento asegura una estructura m\u00e1s adecuada para el tratamiento t\u00e9rmico posterior.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Este enfoque estructurado para el tratamiento t\u00e9rmico del acero para herramientas H21 asegura que el material entregue el alto rendimiento requerido para sus aplicaciones previstas de herramientas de trabajo en caliente. El control preciso de cada par\u00e1metro es clave para el \u00e9xito.<\/p>\n\n\n\n<h2 id=\"14-eael-table-of-content\" class=\"wp-block-heading\">4. Aplicaciones del acero para herramientas H21<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gracias a su dureza en caliente y resistencia al desgaste, el acero H21 se utiliza en diversos procesos de trabajo en caliente:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Troqueles e insertos de forja<\/li>\n\n\n\n<li>Punzones, perforadores y mandriles para trabajo en caliente<\/li>\n\n\n\n<li>Herramientas de extrusi\u00f3n en caliente<\/li>\n\n\n\n<li>Cuchillas de corte en caliente (especialmente para aplicaciones severas, a veces junto con H25)<\/li>\n\n\n\n<li>Troqueles de fundici\u00f3n a presi\u00f3n (particularmente para lat\u00f3n)<\/li>\n\n\n\n<li>Troqueles de acu\u00f1aci\u00f3n (especialmente donde se puede cambiar algo de resistencia al desgaste por una mejor resistencia a la rotura en secciones delgadas)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">El H21 se considera a menudo una opci\u00f3n adecuada para herramientas destinadas a producciones medianas.<\/p>\n\n\n\n<h2 id=\"15-eael-table-of-content\" class=\"wp-block-heading\">5. Grados equivalentes del acero para herramientas H21<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Europeo (EN)<\/strong>: X30WCrV9-3 (1.2581)<\/li>\n\n\n\n<li><strong>Alemania (DIN)<\/strong>: 1.2581<\/li>\n\n\n\n<li><strong>Jap\u00f3n (JIS)<\/strong>: SKD5<\/li>\n\n\n\n<li><strong>Francia (AFNOR)<\/strong>: 32CDV12-28<\/li>\n\n\n\n<li><strong>China (GB)<\/strong>:\u00a03Cr2W8V<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Formulario de solicitud de cotizaci\u00f3n abierta<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\\\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Forged H21 \\\/ 1.2581 \\\/ SKD5 Tungsten Hot Work Tool Steel Round Bar\",\n    \"image\": \"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/H21-TOOL-STEEL.avif\",\n    \"description\": \"Premium Forged H21 (1.2581 \\\/ SKD5) Tungsten Hot Work Tool Steel directly from Aobo Steel factory. 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These types of steels were among the earliest high-alloy options developed for demanding high-temperature tooling applications. 1. H21 Tool Steel Chemical Composition The performance of H21 steel is largely determined by its alloying elements. A typical composition includes: 2. H21 Tool [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9156,"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":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","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-9390","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>H21 Tool Steel | 1.2581 | SKD7 Supplier - AoboSteel<\/title>\n<meta name=\"description\" content=\"Explore H21 tool steel, a tungsten-based hot-work tool steel ideal for high-temperature applications. 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