{"id":12179,"date":"2026-01-12T13:32:44","date_gmt":"2026-01-12T05:32:44","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=12179"},"modified":"2026-09-22T15:05:50","modified_gmt":"2026-09-22T07:05:50","slug":"selection-of-tool-steel-for-hot-shear-blades","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/selection-of-tool-steel-for-hot-shear-blades\/","title":{"rendered":"Hot Shear Blade Tool Steel Selection Guide | H13 H21 S7 A8 Supplier"},"content":{"rendered":"<section class=\"aobo-hot-shear-blade-selection-page\">\n  <style>\n    .aobo-hot-shear-blade-selection-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      font-family: inherit;\n      color: var(--aobo-text);\n      line-height: 1.7;\n      background: transparent;\n      padding: 0;\n    }\n\n    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palanquillas y perfiles pesados durante la forja o la extrusi\u00f3n. Aunque el material est\u00e1 ablandado, la deformaci\u00f3n no es uniforme, por lo que la cuchilla debe soportar simult\u00e1neamente altos esfuerzos de cizallamiento y compresi\u00f3n para completar la separaci\u00f3n. Durante la operaci\u00f3n, el filo de corte est\u00e1 expuesto al contacto deslizante contra la cascarilla de \u00f3xido, mientras que el calentamiento repetido y el enfriamiento intermitente generan fuertes gradientes t\u00e9rmicos.<\/p>\n      <p>En servicio, la falla est\u00e1 gobernada por mecanismos identificables. Si el acero no puede mantener su resistencia a la temperatura, el filo se deforma pl\u00e1sticamente, aumentando la fuerza de corte y acelerando el desgaste. La cascarilla de \u00f3xido promueve un desgaste abrasivo continuo a lo largo del filo. El ciclado t\u00e9rmico produce tensiones superficiales que inician grietas, las cuales pueden propagarse y provocar la falla del filo. La selecci\u00f3n del acero para herramientas, por lo tanto, se centra en mantener la estabilidad del filo bajo temperatura, carga y tensi\u00f3n t\u00e9rmica c\u00edclica.<\/p>\n    <\/header>\n\n    <main class=\"aobo-article\">\n      <h2>Factores de selecci\u00f3n<\/h2>\n      <p>El desempe\u00f1o de las cuchillas de cizallamiento en caliente depende de si el material puede resistir los modos de falla dominantes bajo condiciones de operaci\u00f3n espec\u00edficas. Estos requisitos son interdependientes y deben evaluarse en conjunto.<\/p>\n      <p>La dureza en caliente indica la capacidad del filo para resistir la deformaci\u00f3n pl\u00e1stica a temperaturas elevadas. Si la resistencia en caliente es insuficiente, el filo se redondea en lugar de cizallar, lo que lleva a una r\u00e1pida p\u00e9rdida de eficiencia de corte.<\/p>\n      <p>La tenacidad controla la resistencia al desportillado del filo bajo carga din\u00e1mica. En la pr\u00e1ctica, la desalineaci\u00f3n, la acumulaci\u00f3n de cascarilla o las secciones desiguales introducen impacto localizado, lo que hace que la tenacidad insuficiente sea una causa principal de falla prematura del filo.<\/p>\n      <p>La resistencia a la fatiga t\u00e9rmica gobierna la iniciaci\u00f3n de grietas bajo calentamiento y enfriamiento repetidos. Los materiales con resistencia suficiente a la temperatura retrasan la formaci\u00f3n de grietas y desaceleran el crecimiento de las mismas, extendiendo la vida \u00fatil bajo condiciones c\u00edclicas.<\/p>\n      <p>La resistencia a la abrasi\u00f3n determina la rapidez con que el filo se desgasta debido a la cascarilla de \u00f3xido y al contacto deslizante. Aumentar la resistencia al desgaste mejora la retenci\u00f3n del filo, pero debe equilibrarse con la tenacidad para evitar la fractura fr\u00e1gil.<\/p>\n      <p>En la selecci\u00f3n pr\u00e1ctica, el nivel de temperatura define la dureza en caliente requerida, mientras que la intensidad de enfriamiento y la severidad del impacto determinan la tenacidad necesaria y la resistencia a la fatiga t\u00e9rmica.<\/p>\n\n      <h2>Aceros para herramientas recomendados<\/h2>\n      <div class=\"aobo-grade-card\">\n        <h3 id=\"h-h13-tool-steel-supplier-1-2344-skd61\">Proveedor de acero para herramientas H13 | 1.2344 | SKD61<\/h3>\n        <p>El H13 es la opci\u00f3n est\u00e1ndar cuando se requieren tanto resistencia a la fatiga t\u00e9rmica como tenacidad. A 45\u201350 HRC, mantiene suficiente resistencia en caliente para resistir la deformaci\u00f3n mientras conserva la resistencia al impacto. Su sistema de aleaci\u00f3n proporciona un desempe\u00f1o estable bajo calentamiento c\u00edclico, lo que lo hace adecuado para condiciones que involucran enfriamiento intermitente con agua o aire. Normalmente se selecciona cuando est\u00e1n presentes tanto el choque t\u00e9rmico como la carga mec\u00e1nica.<\/p>\n        <div class=\"aobo-cta-row\"><div class=\"popmake-16052 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"aobo-btn aobo-btn-primary\">Enviar consulta ahora<\/a><\/div><a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/es\/h13-tool-steel\/\">Ver detalles de suministro de material H13<\/a><\/div>\n      <\/div>\n      <div class=\"aobo-grade-card\">\n        <h3 id=\"h-aisi-h21-tool-steel-1-2581-skd5\">Acero para herramientas AISI H21 | 1.2581 | SKD5<\/h3>\n        <p>El H21 se utiliza cuando la resistencia al ablandamiento a alta temperatura es el requisito controlante. Su estructura de carburos rica en tungsteno mantiene la dureza a temperaturas de hasta aproximadamente 620 \u00b0C, permitiendo que el filo resista la deformaci\u00f3n bajo calor sostenido. Sin embargo, su menor resistencia al choque t\u00e9rmico limita su uso a condiciones t\u00e9rmicas estables sin enfriamiento agresivo. Es m\u00e1s adecuado para el corte continuo a alta temperatura donde la deformaci\u00f3n, en lugar del agrietamiento, es el riesgo principal.<\/p>\n        <div class=\"aobo-cta-row\"><div class=\"popmake-16052 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"aobo-btn aobo-btn-primary\">Enviar consulta ahora<\/a><\/div><a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/es\/h21-tool-steel\/\">Ver detalles de suministro de materiales H21<\/a><\/div>\n      <\/div>\n      <div class=\"aobo-grade-card\">\n        <h3 id=\"h-aisi-s7-tool-steel-supplier-din-1-2355\">Proveedor de acero para herramientas AISI S7 | DIN 1.2355<\/h3>\n        <p>El S7 se selecciona cuando la carga de impacto es el factor de falla dominante. Su alta tenacidad le permite resistir el desportillado bajo condiciones de corte intermitentes o inestables. Aunque su dureza en caliente es menor que la de los aceros para trabajo en caliente, puede usarse en aplicaciones donde las temperaturas son moderadas y el choque mec\u00e1nico gobierna la vida \u00fatil de la herramienta. Normalmente se utiliza donde la falla del filo ocurre por desportillado en lugar de ablandamiento o desgaste.<\/p>\n        <div class=\"aobo-cta-row\"><div class=\"popmake-16052 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"aobo-btn aobo-btn-primary\">Enviar consulta ahora<\/a><\/div><a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/es\/s7-tool-steel\/\">Ver detalles de suministro de material S7<\/a><\/div>\n      <\/div>\n      <div class=\"aobo-grade-card\">\n        <h3>AISI A8 (Acero para trabajo en fr\u00edo\/caliente de alta tenacidad)<\/h3>\n        <p>El A8 se aplica donde la temperatura permanece moderada, pero el desgaste abrasivo y la carga mec\u00e1nica son significativos. Por debajo de aproximadamente 480 \u00b0C, proporciona mejor resistencia al desgaste que el H13 mientras mantiene una tenacidad adecuada. Esto lo hace adecuado para el corte de secciones pesadas donde la distribuci\u00f3n de la carga es desigual y el desgaste del filo, en lugar del ablandamiento t\u00e9rmico, limita la vida \u00fatil de la herramienta.<\/p>\n      <\/div>\n\n      <h2>Tabla resumen<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Grado de acero para herramientas<\/th><th>Dureza t\u00edpica<\/th><th>Ventaja principal<\/th><th>Mejor caso de uso<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>AISI H13<\/td><td>45\u201350 HRC<\/td><td>Resistencia equilibrada a la fatiga t\u00e9rmica y al impacto<\/td><td>Cizallamiento en caliente general con ciclado t\u00e9rmico y enfriamiento<\/td><\/tr>\n            <tr><td>AISI H21<\/td><td>45\u201350 HRC<\/td><td>Alta resistencia al ablandamiento a temperatura elevada<\/td><td>Corte continuo a alta temperatura sin enfriamiento r\u00e1pido<\/td><\/tr>\n            <tr><td>AISI S7<\/td><td>54\u201358 HRC<\/td><td>Alta tenacidad al impacto<\/td><td>Corte intermitente donde predomina el desportillado<\/td><\/tr>\n            <tr><td>AISI A8<\/td><td>52\u201356 HRC<\/td><td>Resistencia al desgaste a temperatura moderada<\/td><td>Secciones pesadas con temperatura controlada (&lt;480 \u00b0C)<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/main>\n  <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Selection of Tool Steel for Hot Shear Blades Hot shearing is used to cut heated bars, billets, and heavy sections during forging or extrusion. Although the material is softened, deformation is non-uniform, so the blade must simultaneously withstand high shear and compressive stresses to complete separation. During operation, the cutting edge is exposed to sliding [&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":"","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-12179","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Hot Shear Blade Tool Steel Selection Guide | H13 H21 S7 A8 Supplier<\/title>\n<meta name=\"description\" content=\"Learn how to select tool steel for hot shear blades based on temperature, impact, and wear conditions. 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