{"id":11772,"date":"2025-12-29T13:44:30","date_gmt":"2025-12-29T05:44:30","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11772"},"modified":"2026-04-02T13:49:57","modified_gmt":"2026-04-02T05:49:57","slug":"selection-of-tool-steel-for-aluminum-extrusion-dies","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/selection-of-tool-steel-for-aluminum-extrusion-dies\/","title":{"rendered":"Selecci\u00f3n de acero para matrices de extrusi\u00f3n de aluminio | Proveedor de acero para herramientas H11, H12 y H13"},"content":{"rendered":"
\n

Selecci\u00f3n de acero para herramientas para matrices de extrusi\u00f3n de aluminio<\/h1>\n\n\n\n

La extrusi\u00f3n de aluminio es un proceso de conformado a alta presi\u00f3n en el que se fuerzan lingotes calentados (normalmente entre 340 y 510 \u00b0C) a trav\u00e9s de una matriz. Durante el proceso, la matriz se somete a una tensi\u00f3n de compresi\u00f3n constante, que a menudo alcanza los 1035 MPa (150 ksi), combinada con una exposici\u00f3n t\u00e9rmica continua.<\/p>\n\n\n\n

Debido a que la extrusi\u00f3n generalmente se realiza sin lubricaci\u00f3n, el aluminio tiende a adherirse a la superficie de la matriz, lo que aumenta la fricci\u00f3n y la tensi\u00f3n de cizallamiento en la interfaz. En servicio, la falla de la matriz se debe principalmente a tres mecanismos: desgaste abrasivo por flujo de metal, desgaste adhesivo por adherencia y fatiga t\u00e9rmica (fisuraci\u00f3n por calor). La fisuraci\u00f3n por calor se manifiesta como una red de grietas superficiales causadas por ciclos repetidos de calentamiento y enfriamiento, y suele ser el factor dominante que limita la vida \u00fatil de la matriz.<\/p>\n\n\n\n

Factores de selecci\u00f3n<\/h2>\n\n\n\n

La selecci\u00f3n del acero para herramientas debe basarse en la resistencia a los modos de fallo reales observados en el servicio de extrusi\u00f3n.<\/p>\n\n\n\n

Dureza en caliente (resistencia al revenido)
<\/strong>Una dureza en caliente insuficiente provoca ablandamiento y deformaci\u00f3n pl\u00e1stica bajo carga, lo que resulta en distorsi\u00f3n del perfil y desgaste acelerado durante largos procesos de extrusi\u00f3n.<\/p>\n\n\n\n

Dureza
<\/strong>El riesgo de agrietamiento aumenta bajo altas tensiones, especialmente en matrices grandes, geometr\u00edas complejas o condiciones de extrusi\u00f3n inestables. Una mayor tenacidad reduce la probabilidad de agrietamiento importante y fallas prematuras.<\/p>\n\n\n\n

Resistencia al desgaste
<\/strong>La adhesi\u00f3n y el deslizamiento entre el aluminio y la superficie del troquel provocan una p\u00e9rdida continua de material. El aumento de la dureza mejora la resistencia al desgaste, pero reduce la tenacidad, lo que incrementa la probabilidad de agrietamiento en los bordes.<\/p>\n\n\n\n

Resistencia a la corrosi\u00f3n por calor
<\/strong>La resistencia a la fatiga t\u00e9rmica determina la capacidad del troquel para soportar la expansi\u00f3n y contracci\u00f3n c\u00edclicas. Una baja resistencia provoca la formaci\u00f3n de redes de grietas superficiales que se propagan, acortando la vida \u00fatil del troquel.<\/p>\n\n\n\n

Aceros para herramientas recomendados<\/h2>\n\n\n\n

Dureza de trabajo t\u00edpica: 42\u201350 HRC. Las diferencias en el rendimiento est\u00e1n determinadas por la composici\u00f3n y la estructura del carburo.<\/p>\n\n\n\n

\n

Acero para herramientas AISI H11 | 1.2343 | SKD6<\/h3>\n\n\n\n

El H11 es un acero para herramientas de trabajo en caliente al cromo 5% con un contenido de vanadio relativamente bajo, lo que resulta en un menor volumen de carburos y una mayor tenacidad.<\/p>\n\n\n\n

Se selecciona cuando el agrietamiento es el principal riesgo de fallo, como en matrices grandes, secciones gruesas o aplicaciones con alto impacto mec\u00e1nico. En comparaci\u00f3n con el H13, ofrece mayor resistencia al choque t\u00e9rmico, pero menor resistencia al desgaste.<\/p>\n\n\n\n

\n
Enviar consulta ahora<\/a><\/div>\n\n\n\n
Ver detalles de suministro de material H11<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n

Proveedor de acero para herramientas H13 | 1.2344 | SKD61<\/h3>\n\n\n\n

El H13 contiene aproximadamente 1,01 TP3T de vanadio, formando carburos estables que mejoran la resistencia al desgaste.<\/p>\n\n\n\n

Es la opci\u00f3n est\u00e1ndar para matrices de extrusi\u00f3n de aluminio donde se requiere un equilibrio entre resistencia al desgaste y tenacidad. En la mayor\u00eda de las aplicaciones de extrusi\u00f3n, el H13 proporciona suficiente resistencia tanto al desgaste como al agrietamiento. La nitruraci\u00f3n se aplica com\u00fanmente para mejorar la dureza superficial y reducir el desgaste adhesivo sin sacrificar la tenacidad del n\u00facleo.<\/p>\n\n\n\n

\n
Enviar consulta ahora<\/a><\/div>\n\n\n\n
Ver detalles de suministro de material H13<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n

AISI H12<\/h3>\n\n\n\n

El H12 contiene tungsteno, lo que mejora la resistencia al ablandamiento a temperaturas elevadas.<\/p>\n\n\n\n

Se utiliza cuando los troqueles est\u00e1n sometidos a una exposici\u00f3n t\u00e9rmica prolongada y requieren mayor resistencia a la deformaci\u00f3n que el acero H11, manteniendo al mismo tiempo una tenacidad razonable. Es adecuado para ciclos de producci\u00f3n largos en los que el ablandamiento, en lugar del agrietamiento, limita la vida \u00fatil del troquel.<\/p>\n<\/div>\n\n\n\n

Tabla comparativa resumida<\/h2>\n\n\n\n
Grado de acero para herramientas<\/td>Caracter\u00edsticas clave<\/td>Ventaja primaria<\/td><\/tr>
AISI H11<\/td>5% Cr, bajo V<\/td>M\u00e1xima resistencia al agrietamiento y al choque t\u00e9rmico.<\/td><\/tr>
AISI H12<\/td>5% Cr, aleaci\u00f3n de W<\/td>Mayor resistencia al ablandamiento por altas temperaturas.<\/td><\/tr>
AISI H13<\/td>5% Cr, ~1,0% V<\/td>Resistencia al desgaste y tenacidad equilibradas; apto para nitruraci\u00f3n.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Selection of Tool Steel for Aluminum Extrusion Dies Aluminum extrusion is a high-pressure forming process in which heated billets (typically 340\u2013510\u00b0C) are forced through a die. During operation, the die is subjected to sustained compressive stress, often reaching 1035 MPa (150 ksi), combined with continuous thermal exposure. Because extrusion is typically performed without lubrication, aluminum […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","_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-11772","page","type-page","status-publish","hentry"],"yoast_head":"\nAluminum Extrusion Die Steel Selection | H11 vs H12 vs H13 Tool Steel Supplier<\/title>\n<meta name=\"description\" content=\"Compare H11, H12, and H13 tool steel for aluminum extrusion dies. 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During operation, the die is subjected to sustained compressive stress, often reaching 1035 MPa (150 ksi), combined with continuous thermal exposure. Because extrusion is typically performed without lubrication, aluminum…","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"Selection of Tool Steel for Aluminum Extrusion Dies Aluminum extrusion is a high-pressure forming process in which heated billets (typically 340\u2013510\u00b0C) are forced through a die. During operation, the die is subjected to sustained compressive stress, often reaching 1035 MPa (150 ksi), combined with continuous thermal exposure. 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