{"id":20199,"date":"2026-09-29T02:13:10","date_gmt":"2026-09-28T18:13:10","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=20199"},"modified":"2026-10-16T00:16:03","modified_gmt":"2026-10-15T16:16:03","slug":"h19-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/h19-tool-steel-heat-treatment\/","title":{"rendered":"Tratamiento t\u00e9rmico del acero para herramientas H19"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Tratamiento t\u00e9rmico del acero para herramientas H19<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">La composici\u00f3n qu\u00edmica, el ciclo de temple y la l\u00ednea de revenido que la ficha de origen imprime para el acero para herramientas de trabajo en caliente para servicio pesado H19. Un resumen de referencia de la pr\u00e1ctica publicada y no una especificaci\u00f3n de Aobo Steel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H19 en el grupo de trabajo en caliente<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El H19 es un acero para herramientas de trabajo en caliente que contiene tungsteno y cobalto adem\u00e1s de cromo, y eso es lo que lo separa de los grados al cromo H11, H12 y H13. La ficha de referencia imprime 4,26 por ciento de tungsteno y 4,16 por ciento de cobalto frente a 4,12 por ciento de cromo, por lo que el grado est\u00e1 dise\u00f1ado para la resistencia al calor m\u00e1s que para la dureza por la que se compran los grados de trabajo en fr\u00edo. El texto de origen lo sit\u00faa en la fundici\u00f3n a presi\u00f3n, donde su resistencia al agrietamiento t\u00e9rmico es la raz\u00f3n por la que el grado se nombra, y a\u00f1ade que el acero puede dar un desgaste excepcional en trabajos a alta temperatura. Tambi\u00e9n es el grado que la misma fuente llama la mejor opci\u00f3n integral junto al H21, porque el H19 conserva m\u00e1s dureza y m\u00e1s resistencia al desgaste y absorbe mejor los impactos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La ficha es informaci\u00f3n de referencia de taller m\u00e1s que una especificaci\u00f3n. Imprime un paso de precalentamiento, una temperatura de temple y dos medios de enfriamiento, luego una tabla de revenido en Rockwell C con una sola cifra en cada fila y sin banda de tolerancia en ninguna parte. Vale la pena tratar una primera corrida de piezas de una nueva colada de acero como una prueba antes de que el ciclo pase a trabajos de producci\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Composici\u00f3n qu\u00edmica del H19<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Elementos que la ficha de referencia enumera, porcentaje<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Elemento<\/th><th class=\"has-text-align-left\" data-align=\"left\">Porcentaje<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Carbono<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.42<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Manganese<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.31<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Silicon<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.21<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cromo<\/td><td class=\"has-text-align-left\" data-align=\"left\">4.12<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Molibdeno<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.46<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Vanadio<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.19<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tungsteno<\/td><td class=\"has-text-align-left\" data-align=\"left\">4.26<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cobalt<\/td><td class=\"has-text-align-left\" data-align=\"left\">4.16<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Fuente, informaci\u00f3n de referencia de tratamiento t\u00e9rmico para H19, p\u00e1gina impresa 188.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>La ficha imprime azufre sin ninguna cifra frente a \u00e9l, por lo que esa fila se omite en lugar de imprimirse en blanco. La ficha da una sola cifra para cada elemento donde una norma da un rango, y la cifra de cada fila aqu\u00ed cae dentro del rango que la tabla de composici\u00f3n de aceros para herramientas de este sitio tiene para el H19, que escribe el rango de cromo como 4,00 a 4,75 por ciento, el rango de tungsteno como 3,75 a 4,50 por ciento, el rango de vanadio como 1,75 a 2,20 por ciento y el rango de cobalto como 4,00 a 4,50 por ciento frente a UNS T20819. Los datos de composici\u00f3n son solo para referencia general, los valores reales var\u00edan seg\u00fan la norma, la acer\u00eda y el n\u00famero de colada, as\u00ed que confirme las cifras contra el certificado de ensayo del material de la colada o consulte a Aobo Steel.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El cromo a 4,12 por ciento es la cifra en la que se basa la resistencia al calor, y es menor que el cromo de los grados H11 y H13, por lo que este acero tambi\u00e9n contiene tungsteno y cobalto. El tungsteno a 4,26 por ciento y el cobalto a 4,16 por ciento son los dos elementos detr\u00e1s de la resistencia en caliente, y el cobalto es la adici\u00f3n que eleva la temperatura a la que el acero a\u00fan mantiene su dureza. El vanadio a 2,19 por ciento es alto para un grado de trabajo en caliente, y es el elemento que forma los carburos duros que mantienen la resistencia al desgaste a la temperatura de trabajo. El molibdeno a 0,46 por ciento trabaja junto con el tungsteno. El manganeso a 0,31 por ciento y el silicio a 0,21 por ciento son las adiciones menores habituales que acompa\u00f1an a la pr\u00e1ctica de desoxidaci\u00f3n. El carbono a 0,42 por ciento est\u00e1 en el lado bajo del rango de los aceros para herramientas, y eso es deliberado en un acero para matrices, porque el carbono compra dureza a costa de la tenacidad y una matriz que se agrieta es peor que una matriz que se desgasta. Los datos de composici\u00f3n de la tabla son solo para referencia general, los valores reales var\u00edan seg\u00fan la norma, la acer\u00eda y el n\u00famero de colada, as\u00ed que confirme las cifras contra el certificado de ensayo del material de la colada o consulte a Aobo Steel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Temple del H19<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Precalentamiento, temperatura de temple y enfriamiento<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Paso<\/th><th class=\"has-text-align-left\" data-align=\"left\">H19<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Precalentamiento<\/td><td class=\"has-text-align-left\" data-align=\"left\">1500 \u00b0F (815 \u00b0C)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Templar<\/td><td class=\"has-text-align-left\" data-align=\"left\">2150 \u00b0F (1175 \u00b0C)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Medio de temple<\/td><td class=\"has-text-align-left\" data-align=\"left\">Temple en aceite o en sal<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Fuente, informaci\u00f3n de referencia de tratamiento t\u00e9rmico para H19, p\u00e1gina impresa 188.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>La ficha imprime un paso de precalentamiento, una temperatura de temple y dos medios de enfriamiento para el grado, sin ninguna condici\u00f3n de tama\u00f1o de secci\u00f3n frente a ninguno de ellos, por lo que las cifras son v\u00e1lidas para la carga tal como est\u00e1 escrita. Ambos medios nombrados en la ficha enfr\u00edan m\u00e1s r\u00e1pido que el aire, lo cual es la raz\u00f3n de ser del grado y no un accidente de la ficha.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La carga entra a 1500 \u00b0F (815 \u00b0C) para el precalentamiento, luego sube a 2150 \u00b0F (1175 \u00b0C) para la austenizaci\u00f3n, seguido de un enfriamiento en aceite o en sal. Ambos medios nombrados en la ficha enfr\u00edan m\u00e1s r\u00e1pido que el aire, y esa es la diferencia entre este grado y un acero para herramientas de temple al aire, por lo que la secci\u00f3n debe poder soportar el enfriamiento m\u00e1s r\u00e1pido. La sal es el medio al que recurre un tratador t\u00e9rmico comercial en un bloque de matriz, ya que enfr\u00eda de manera uniforme y deja una superficie limpia, y el aceite es la ruta m\u00e1s antigua impresa junto a ella. Una secci\u00f3n de matriz pesada y un enfriamiento r\u00e1pido son la combinaci\u00f3n que produce distorsi\u00f3n y grietas de temple, por lo que el paso de precalentamiento importa m\u00e1s aqu\u00ed que en una pieza peque\u00f1a. La ficha imprime una temperatura de temple y ning\u00fan tiempo de permanencia, por lo que el tiempo a temperatura debe provenir de la pr\u00e1ctica de su tratador t\u00e9rmico y no de esta tabla.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Respuesta al revenido del H19<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Dureza que deja cada temperatura de revenido<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Revenido, \u00b0F<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u00b0C<\/th><th class=\"has-text-align-left\" data-align=\"left\">H19, HRC<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Reci\u00e9n templado<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><td class=\"has-text-align-left\" data-align=\"left\">53<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">600<\/td><td class=\"has-text-align-left\" data-align=\"left\">315<\/td><td class=\"has-text-align-left\" data-align=\"left\">52<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">700<\/td><td class=\"has-text-align-left\" data-align=\"left\">370<\/td><td class=\"has-text-align-left\" data-align=\"left\">51<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">800<\/td><td class=\"has-text-align-left\" data-align=\"left\">425<\/td><td class=\"has-text-align-left\" data-align=\"left\">51<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">900<\/td><td class=\"has-text-align-left\" data-align=\"left\">480<\/td><td class=\"has-text-align-left\" data-align=\"left\">51<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">1000<\/td><td class=\"has-text-align-left\" data-align=\"left\">540<\/td><td class=\"has-text-align-left\" data-align=\"left\">56<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">1100<\/td><td class=\"has-text-align-left\" data-align=\"left\">595<\/td><td class=\"has-text-align-left\" data-align=\"left\">57<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Fuente, informaci\u00f3n de referencia de tratamiento t\u00e9rmico para H19, p\u00e1gina impresa 188.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>La ficha imprime una cifra de Rockwell C en cada fila y sin banda de tolerancia frente a ninguna de ellas. La l\u00ednea cae desde la cifra tal como se templa durante las primeras cuatro filas y luego sube a la cifra m\u00e1s alta de la ficha a 1100 \u00b0F (595 \u00b0C), que es el tope del rango que imprime la ficha.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La l\u00ednea comienza plana y luego sube. El H19 sale del enfriamiento a 53 HRC, y las primeras cuatro temperaturas de revenido impresas en la ficha, de 600 \u00b0F (315 \u00b0C) a 900 \u00b0F (480 \u00b0C), llevan la lectura a 52 y 51 HRC. A partir de ah\u00ed la l\u00ednea gira hacia arriba, a 56 HRC a 1000 \u00b0F (540 \u00b0C) y 57 HRC a 1100 \u00b0F (595 \u00b0C), la cifra m\u00e1s alta de la ficha y el tope del rango que imprime. Esa subida es endurecimiento secundario. Los carburos de tungsteno, vanadio y cobalto salen de la soluci\u00f3n durante el revenido y devuelven dureza al acero, por lo que una matriz de trabajo en caliente se reviene en el tope de este rango y no en la parte baja. Una matriz que debe mantener su dureza a 1000 \u00b0F (540 \u00b0C) en servicio se reviene cerca de esa temperatura en primer lugar. No se imprime nada por encima de 1100 \u00b0F (595 \u00b0C) en esta ficha, por lo que la cola de la curva queda fuera de los datos de referencia de esta p\u00e1gina.<\/p>\n\n\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-3e4fb3d2 wp-block-group-is-layout-constrained\" style=\"border-radius:8px;background-color:#f4f8ff;margin-bottom:24px;padding-top:20px;padding-right:24px;padding-bottom:20px;padding-left:24px\">\n<p class=\"wp-block-paragraph\"><strong>Tratamiento t\u00e9rmico del acero para herramientas H19, PDF imprimible<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">La composici\u00f3n qu\u00edmica, el ciclo de temple y la respuesta al revenido del H19 de esta p\u00e1gina en un solo PDF, con nuestros datos de contacto.<\/p>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/09\/Aobo-Steel-H19-Tool-Steel-Heat-Treatment.pdf\">Descargar PDF, 374 KB<\/a><\/div>\n\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Datos de referencia relacionados<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El H19 se ubica con los otros grados de trabajo en caliente de este sitio. Los grados junto a \u00e9l se exponen en la <a href=\"https:\/\/aobosteel.com\/es\/h11-tool-steel-heat-treatment\/\">p\u00e1gina de tratamiento t\u00e9rmico del acero para herramientas H11<\/a>, la <a href=\"https:\/\/aobosteel.com\/es\/h13-steel-heat-treatment\/\">p\u00e1gina de tratamiento t\u00e9rmico del acero H13<\/a>, la <a href=\"https:\/\/aobosteel.com\/es\/h21-tool-steel\/\">p\u00e1gina del acero para herramientas H21<\/a> y la <a href=\"https:\/\/aobosteel.com\/es\/h10-tool-steel-heat-treatment-guide\/\">Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas H10<\/a>, y el <a href=\"https:\/\/aobosteel.com\/es\/hot-work-tool-steels\/\">cat\u00e1logo de acero para herramientas de trabajo en caliente<\/a> recoge la familia. Los rangos de trabajo entre los grupos de aceros para herramientas est\u00e1n en la <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-tempering-chart\/\">Tabla de revenido del acero para herramientas<\/a>, que contiene una fila para el H19, la dureza de los mismos grados a temperatura est\u00e1 en la <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-hot-hardness-chart\/\">tabla de dureza en caliente del acero para herramientas<\/a>, que contiene una fila de H19, y la composici\u00f3n qu\u00edmica de cada grado est\u00e1 en la <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-composition-chart\/\">Tabla de composici\u00f3n del acero para herramientas<\/a>. La selecci\u00f3n por aplicaci\u00f3n se cubre en la <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-selection-by-application\/\">p\u00e1gina de selecci\u00f3n de acero para herramientas por aplicaci\u00f3n<\/a> y el caso de fundici\u00f3n a presi\u00f3n en la <a href=\"https:\/\/aobosteel.com\/es\/blog\/why-h13-steel-used-in-die-casting\/\">p\u00e1gina de por qu\u00e9 se usa el acero H13 en la fundici\u00f3n a presi\u00f3n<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Datos de referencia compilados de Heat Treatment, Selection, and Application of Tool Steels (William E. Bryson, segunda edici\u00f3n, Carl Hanser Verlag, 2009). La composici\u00f3n qu\u00edmica, el ciclo de temple y la respuesta al revenido del H19 provienen de la informaci\u00f3n de referencia de tratamiento t\u00e9rmico de la p\u00e1gina impresa 188.<\/p>","protected":false},"excerpt":{"rendered":"<p>H19 Tool Steel Heat Treatment The chemistry, the hardening cycle and the tempering line the source card prints for H19 heavy duty hot work tool steel. A reference summary of published practice and not an Aobo Steel specification. H19 in the hot work group H19 is a hot work tool steel that carries tungsten and [&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":"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":"","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 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