{"id":11688,"date":"2025-12-23T14:12:35","date_gmt":"2025-12-23T06:12:35","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11688"},"modified":"2026-06-25T15:13:04","modified_gmt":"2026-06-25T07:13:04","slug":"m2-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/m2-tool-steel-heat-treatment\/","title":{"rendered":"Tratamiento t\u00e9rmico del acero M2: endurecimiento, revenido y tabla de dureza 60-65 HRC."},"content":{"rendered":"<section class=\"aobo-m2-heat-treatment-page\">\n  <style>\n    .aobo-m2-heat-treatment-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      box-sizing: border-box;\n    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<h1>Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas M2<\/h1>\n      <p>El acero para herramientas M2 se somete a un tratamiento t\u00e9rmico mediante un doble precalentamiento, austenizaci\u00f3n a 1190\u20131230 \u00b0C, temple en aceite, aire o ba\u00f1o de sales, y posterior revenido doble o triple a 538\u2013595 \u00b0C. Con un revenido adecuado, el M2 alcanza una dureza de aproximadamente 60\u201365 HRC, con la elevada dureza, resistencia al desgaste y dureza en caliente propias de un acero de alta velocidad.<\/p>\n      <p>Una secuencia t\u00edpica consiste en un primer precalentamiento a 540\u2013650 \u00b0C y un segundo a 845\u2013870 \u00b0C. Una vez que la secci\u00f3n se estabiliza, se mantiene a esa temperatura brevemente (entre 2 y 5 minutos). Se enfr\u00eda r\u00e1pidamente a unos 66\u201393 \u00b0C. Se templa inmediatamente. El margen de procesamiento es estrecho. Los controles inferiores son m\u00e1s importantes que el tiempo de horneado.<\/p>\n      <p>El M2 es un acero r\u00e1pido para herramientas de molibdeno-tungsteno. Problemas como la disminuci\u00f3n de la dureza, el engrosamiento del grano, la persistencia de austenita retenida, el agrietamiento, la descarburaci\u00f3n superficial o la inestabilidad dimensional pueden ser consecuencia de un remojo excesivo, un sobrecalentamiento, un control atmosf\u00e9rico deficiente o un revenido tard\u00edo e inadecuado.<\/p>\n    <\/header>\n\n    <main class=\"aobo-article\">\n      <section class=\"aobo-supply-block\">\n        <div class=\"aobo-supply-image\">\n          <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/M2-HIGH-SPEED-STEEL.avif\" alt=\"Producto de acero para herramientas de alta velocidad M2\" loading=\"lazy\">\n        <\/div>\n        <div class=\"aobo-supply-content\">\n          <h2>Acero para herramientas de alta velocidad M2 de Aobo Steel<\/h2>\n          <p>Aobo Steel suministra acero M2 recocido para pedidos al por mayor, con un pedido m\u00ednimo de 5 toneladas. Env\u00edenos sus medidas y cantidades para obtener un presupuesto, o consulte la p\u00e1gina del producto para ver la composici\u00f3n qu\u00edmica, grados equivalentes, tama\u00f1os disponibles, tolerancias y detalles de inspecci\u00f3n.<\/p>\n          <div class=\"aobo-supply-actions\">\n            <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n            <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/es\/m2-tool-steel\/\">Ver detalles de suministro de M2<\/a>\n          <\/div>\n        <\/div>\n      <\/section>\n\n      <h2>Tabla de temperaturas de tratamiento t\u00e9rmico del acero para herramientas M2<\/h2>\n      <p>La siguiente tabla resume los datos principales del tratamiento t\u00e9rmico del acero para herramientas M2. La secuencia completa del proceso se explica en la secci\u00f3n paso a paso que aparece a continuaci\u00f3n.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Paso del proceso<\/th><th>Temperatura \/ Condici\u00f3n<\/th><th>Control de llaves<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Recocido<\/td><td>870\u2013900 \u00b0C \/ 1600\u20131650 \u00b0F<\/td><td>Mantener aproximadamente 1 hora por pulgada de espesor. Enfriar lentamente en el horno hasta 650 \u00b0C, luego enfriar al aire. La dureza recocida suele ser de aproximadamente 241 HB, hasta un m\u00e1ximo especificado de aproximadamente 248 HB.<\/td><\/tr>\n            <tr><td>Alivio del estr\u00e9s<\/td><td>650\u2013675 \u00b0C \/ 1200\u20131245 \u00b0F<\/td><td>Se utiliza despu\u00e9s de procesos de mecanizado intensos. Mantener durante 1-2 horas por cada pulgada de secci\u00f3n transversal y luego enfriar lentamente.<\/td><\/tr>\n            <tr><td>Primer precalentamiento<\/td><td>540\u2013650 \u00b0C \/ 1000\u20131200 \u00b0F<\/td><td>Reduce el choque t\u00e9rmico inicial.<\/td><\/tr>\n            <tr><td>Segundo precalentamiento<\/td><td>845\u2013870 \u00b0C \/ 1555\u20131600 \u00b0F<\/td><td>Ecualiza la herramienta antes de la austenizaci\u00f3n.<\/td><\/tr>\n            <tr><td>Austenitizaci\u00f3n<\/td><td>1190\u20131230 \u00b0C \/ 2175\u20132245 \u00b0F<\/td><td>Rango inferior para la tenacidad; rango superior para la dureza, la resistencia al desgaste y la dureza en rojo.<\/td><\/tr>\n            <tr><td>Tiempo de remojo<\/td><td>Normalmente, entre 2 y 5 minutos despu\u00e9s de la ecualizaci\u00f3n.<\/td><td>Evite dejarlo en remojo durante mucho tiempo.<\/td><\/tr>\n            <tr><td>Enfriamiento<\/td><td>Ba\u00f1o de aceite, aire o sal<\/td><td>Enfriar r\u00e1pidamente a unos 66\u201393 \u00b0C \/ 150\u2013200 \u00b0F.<\/td><\/tr>\n            <tr><td>Dureza tras el temple<\/td><td>Aproximadamente 64\u201366 HRC<\/td><td>Temple inmediatamente. No deje M2 en estado de temple.<\/td><\/tr>\n            <tr><td>Tratamiento opcional para temperaturas bajo cero<\/td><td>-100 a -195 \u00b0C \/ -150 a -320 \u00b0F<\/td><td>Se utiliza cuando la estabilidad dimensional es fundamental.<\/td><\/tr>\n            <tr><td>Templado<\/td><td>538\u2013595 \u00b0C \/ 1000\u20131105 \u00b0F<\/td><td>Se requiere un doble templado. El triple templado se utiliza a menudo para herramientas exigentes.<\/td><\/tr>\n            <tr><td>dureza final t\u00edpica<\/td><td>Aproximadamente 60\u201365 HRC<\/td><td>Depende de la temperatura de austenizaci\u00f3n, el m\u00e9todo de temple, la temperatura de revenido y el tama\u00f1o de la secci\u00f3n.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>El M2 debe calentarse en un horno de vac\u00edo, en una atm\u00f3sfera neutra controlada o, si es posible, en un ba\u00f1o de sales neutras. A las temperaturas de endurecimiento del M2, puede producirse una descarburaci\u00f3n superficial. Esto deja una capa exterior blanda y reduce la resistencia al desgaste.<\/p>\n\n      <h2>C\u00f3mo realizar el tratamiento t\u00e9rmico del acero para herramientas M2 paso a paso<\/h2>\n      <p>El tratamiento t\u00e9rmico M2 debe gestionarse como un proceso metal\u00fargico continuo; cada etapa se interrelaciona e influye en las dem\u00e1s. Un precalentamiento inadecuado aumenta la probabilidad de choque t\u00e9rmico y agrietamiento. Una austenizaci\u00f3n sub\u00f3ptima interrumpe la disoluci\u00f3n de carburos y aumenta la austenita retenida. Un temple inadecuado reduce la dureza alcanzable y provoca distorsi\u00f3n. Un revenido multietapa insuficiente deja la microestructura en estado metaestable.<\/p>\n\n      <h3>Paso 1: Aliviar el estr\u00e9s antes del endurecimiento<\/h3>\n      <p>Se recomienda el alivio de tensiones cuando una herramienta M2 ha sido sometida a un mecanizado intensivo antes del endurecimiento. Cuando se ha eliminado una gran cantidad de material, las tensiones internas de mecanizado pueden provocar movimientos o fisuras durante el tratamiento t\u00e9rmico final.<\/p>\n      <p>Caliente la herramienta lentamente a 650\u2013675 \u00b0C (1200\u20131245 \u00b0F) y mant\u00e9ngala a esa temperatura durante aproximadamente 1\u20132 horas por pulgada de secci\u00f3n transversal. Enfr\u00ede la herramienta lentamente a temperatura ambiente. Este paso no endurece el acero, sino que alivia las tensiones internas antes del ciclo de endurecimiento a alta temperatura. Complete el mecanizado basto antes de aliviar las tensiones. Deje suficiente margen para el rectificado final despu\u00e9s del endurecimiento y el revenido.<\/p>\n\n      <h3>Paso 2: Doble precalentamiento para acero para herramientas M2<\/h3>\n      <p>El M2 no debe someterse directamente al proceso de austenizaci\u00f3n. Debido a su alto contenido de aleaci\u00f3n y su elevada temperatura de endurecimiento, el calentamiento directo a altas temperaturas puede provocar un choque t\u00e9rmico significativo y aumentar el riesgo de agrietamiento.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Etapa de precalentamiento<\/th><th>Temperatura<\/th><th>Prop\u00f3sito<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Primero precalentar<\/td><td>540\u2013650 \u00b0C \/ 1000\u20131200 \u00b0F<\/td><td>Reduce el choque t\u00e9rmico inicial y comienza un calentamiento uniforme.<\/td><\/tr>\n            <tr><td>Segundo precalentamiento<\/td><td>845\u2013870 \u00b0C \/ 1555\u20131600 \u00b0F<\/td><td>Ecualiza la herramienta antes de calentarla r\u00e1pidamente hasta el rango de austenizaci\u00f3n.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>El objetivo del precalentamiento es igualar las temperaturas, no mantenerlas a esa temperatura durante mucho tiempo. Una vez calentada uniformemente, austen\u00edcela sin demora. Mantener la temperatura durante un tiempo excesivo durante el calentamiento es innecesario, ya que puede aumentar la descarburaci\u00f3n si la atm\u00f3sfera no est\u00e1 bien protegida.<\/p>\n      <p>Algunas referencias indican un rango general de precalentamiento M2 de 730\u2013845 \u00b0C, o un ciclo elevado de dos etapas a 843 \u00b0C y 1010 \u00b0C. Para un proceso claro y por etapas, las secuencias de 540\u2013650 \u00b0C y 845\u2013870 \u00b0C son m\u00e1s f\u00e1ciles de seguir y explican directamente el orden de calentamiento previo al endurecimiento.<\/p>\n\n      <h3>Paso 3: Temperatura de austenizaci\u00f3n y tiempo de remojo<\/h3>\n      <p>El M2 se austeniza t\u00edpicamente a 1190\u20131230 \u00b0C (2175\u20132245 \u00b0F). Este es el paso m\u00e1s cr\u00edtico. La temperatura debe ser suficiente para disolver los carburos de aleaci\u00f3n necesarios, pero sin superar los umbrales de crecimiento de grano, exceso de austenita retenida o da\u00f1o t\u00e9rmico.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Objetivo austenizante<\/th><th>Temperatura<\/th><th>L\u00f3gica de la aplicaci\u00f3n<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Prioridad a la resistencia<\/td><td>1175\u20131190 \u00b0C \/ 2150\u20132175 \u00b0F<\/td><td>Se utiliza cuando la tenacidad y la resistencia al agrietamiento son m\u00e1s importantes que la dureza m\u00e1xima.<\/td><\/tr>\n            <tr><td>Gama de endurecimiento est\u00e1ndar M2<\/td><td>1190\u20131230 \u00b0C \/ 2175\u20132245 \u00b0F<\/td><td>Gama general para herramientas de corte M2 y herramientas resistentes al desgaste.<\/td><\/tr>\n            <tr><td>M\u00e1xima dureza y resistencia al desgaste.<\/td><td>Alrededor de 1230 \u00b0C \/ 2245 \u00b0F<\/td><td>Se utiliza cuando se requiere alta dureza, resistencia al desgaste y dureza al rojo vivo.<\/td><\/tr>\n            <tr><td>Ajuste del ba\u00f1o de sal<\/td><td>Aproximadamente 14 \u00b0C \/ 25 \u00b0F m\u00e1s bajo<\/td><td>Se utiliza durante el proceso de endurecimiento mediante ba\u00f1o de sal.<\/td><\/tr>\n            <tr><td>Ajuste M2 de alto contenido de carbono<\/td><td>Aproximadamente 14 \u00b0C \/ 25 \u00b0F m\u00e1s bajo<\/td><td>Ayuda a reducir el riesgo de sobrecalentamiento y retenci\u00f3n de austenita.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>El tiempo de mantenimiento a la temperatura de austenizaci\u00f3n debe ser breve. Una vez que la herramienta alcance la temperatura, mantenga M2 durante solo 2 a 5 minutos. Este es el tiempo a temperatura despu\u00e9s de que la secci\u00f3n se haya ecualizado, no el ciclo completo del horno. El tiempo de calentamiento no se cuenta como mantenimiento. Las secciones muy grandes pueden requerir entre 5 y 7 minutos. No mantenga M2 a temperatura constante como lo har\u00eda con un acero de baja aleaci\u00f3n.<\/p>\n      <p>El sobrecalentamiento es una de las causas m\u00e1s comunes de fallos en el tratamiento t\u00e9rmico M2. Un tiempo excesivo a alta temperatura disuelve demasiado carbono y aleaci\u00f3n en la austenita, lo que aumenta la austenita retenida, engrosa el grano y reduce la tenacidad. El calentamiento insuficiente tiene el efecto contrario: provoca una disoluci\u00f3n insuficiente de los carburos, menor dureza y un endurecimiento secundario m\u00e1s d\u00e9bil durante el revenido. El objetivo es lograr una disoluci\u00f3n controlada de los carburos dentro de un rango estrecho, no el tiempo m\u00e1ximo en el horno.<\/p>\n\n      <h3>Paso 4: M\u00e9todos de enfriamiento: Aceite, aire y ba\u00f1o de sal<\/h3>\n      <p>Tras la austenizaci\u00f3n, temple el M2 en aceite, aire o un ba\u00f1o de sales calientes. El mejor m\u00e9todo depende del tama\u00f1o de la herramienta, la dureza deseada, la tolerancia a la deformaci\u00f3n y el equipo disponible.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>M\u00e9todo de enfriamiento<\/th><th>Mejor uso<\/th><th>Limitaci\u00f3n principal<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>enfriamiento con aceite<\/td><td>Respuesta de mayor dureza<\/td><td>Mayor riesgo de deformaci\u00f3n y agrietamiento que con la refrigeraci\u00f3n por aire.<\/td><\/tr>\n            <tr><td>Enfriamiento por aire<\/td><td>Mayor estabilidad dimensional<\/td><td>La dureza puede ser menor en secciones m\u00e1s grandes o de enfriamiento m\u00e1s lento.<\/td><\/tr>\n            <tr><td>Ba\u00f1o de sal caliente para refrescarse<\/td><td>Buena igualaci\u00f3n de la temperatura y reducci\u00f3n del choque t\u00e9rmico.<\/td><td>Requiere equipos adecuados para ba\u00f1os de sal y un control estricto.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>El temple en aceite se suele elegir cuando se requiere la m\u00e1xima dureza, enfriando la herramienta desde la austenizaci\u00f3n hasta 66\u201393 \u00b0C (150\u2013200 \u00b0F). El temple al aire es m\u00e1s suave y reduce el riesgo de deformaci\u00f3n, por lo que resulta adecuado para secciones o herramientas m\u00e1s peque\u00f1as donde la estabilidad dimensional es m\u00e1s importante que un enfriamiento agresivo. El temple en ba\u00f1o de sales calientes proporciona un mejor control de la igualaci\u00f3n de temperatura: la herramienta se mantiene a esa temperatura hasta que la secci\u00f3n se iguala, y luego se enfr\u00eda a\u00fan m\u00e1s antes del revenido, lo que reduce el choque t\u00e9rmico y la deformaci\u00f3n cuando se controla adecuadamente.<\/p>\n      <p>Independientemente del medio de temple, el revenido debe comenzar tan pronto como la herramienta se enfr\u00ede a 66\u201393 \u00b0C. Una retenci\u00f3n prolongada en el estado martens\u00edtico resultante del temple aumenta el riesgo de agrietamiento tard\u00edo o distorsi\u00f3n dimensional debido a la austenita retenida sin revenir y las tensiones residuales.<\/p>\n      <figure class=\"aobo-figure\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/12\/Time-temperature-transformation-diagram-for-M2-high-speed-tool-steel.avif\" alt=\"Diagrama de transformaci\u00f3n tiempo-temperatura para acero para herramientas de alta velocidad M2\" loading=\"lazy\">\n        <figcaption>\n          <strong>Figura: Diagrama de transformaci\u00f3n para acero para herramientas de alta velocidad M2 austenizado a 1230 \u00b0C \/ 2250 \u00b0F, con curvas de temple en sal, temple al aire y enfriamiento al aire superpuestas.<\/strong>\n          El diagrama muestra las regiones de transformaci\u00f3n de perlita y bainita, el inicio de la martensita y las l\u00edneas de martensita 15%, 50% y 90%. Fuente: Manual ASM, Volumen 16, Mecanizado, p\u00e1gina 121.\n        <\/figcaption>\n      <\/figure>\n\n      <h3>Paso 5: Tratamiento opcional a temperaturas bajo cero<\/h3>\n      <p>El tratamiento a temperaturas bajo cero es opcional. Se utiliza principalmente cuando la estabilidad dimensional es fundamental, como en el caso de herramientas complejas, componentes de precisi\u00f3n o piezas donde la austenita retenida debe reducirse a\u00fan m\u00e1s.<\/p>\n      <p>Un rango t\u00edpico de temperaturas bajo cero es de -100 a -195 \u00b0C (-150 a -320 \u00b0F). Una vez que la pieza alcanza la temperatura ambiente, el revenido debe comenzar de inmediato. Para formas complejas, se puede aplicar un breve revenido de alivio de tensiones a baja temperatura antes de la congelaci\u00f3n para reducir el riesgo de agrietamiento. El tratamiento bajo cero no reemplaza la austenizaci\u00f3n, el temple y los m\u00faltiples revenidos adecuados. Es solo un paso de estabilizaci\u00f3n adicional cuando el dise\u00f1o de la herramienta y las condiciones de servicio lo requieren.<\/p>\n\n      <h3>Paso 6: Templado doble o triple<\/h3>\n      <p>El revenido debe comenzar inmediatamente despu\u00e9s del temple. Si se utiliza un ciclo bajo cero, el revenido debe realizarse inmediatamente despu\u00e9s de que la pieza alcance la temperatura ambiente. El proceso M2 se basa en el endurecimiento secundario. El revenido no solo alivia las tensiones, sino que tambi\u00e9n controla la transformaci\u00f3n de la austenita retenida, la precipitaci\u00f3n de carburos, la dureza final y la tenacidad.<\/p>\n      <p>El rango de revenido habitual para el acero M2 es de 538\u2013595 \u00b0C (1000\u20131105 \u00b0F). El doble revenido es el requisito m\u00ednimo pr\u00e1ctico. El triple revenido se utiliza con frecuencia para herramientas de corte, herramientas de precisi\u00f3n y condiciones de servicio exigentes.<\/p>\n      <p>Tras cada ciclo de revenido, es necesario enfriar la muestra a temperatura ambiente antes de comenzar el siguiente. Esta etapa de enfriamiento es importante porque la austenita retenida puede transformarse en martensita durante el proceso, y el siguiente revenido alivia la tensi\u00f3n en dicha martensita reci\u00e9n formada. No se debe confiar en un solo revenido para la aleaci\u00f3n M2. Un solo ciclo generalmente no es suficiente para estabilizar la estructura.<\/p>\n\n      <h2>Tabla de temperatura y dureza de revenido M2<\/h2>\n      <p>El M2 presenta una fuerte respuesta de endurecimiento secundario. Su dureza no disminuye simplemente al aumentar la temperatura de revenido. En el rango de revenido alto, precipitan finos carburos de aleaci\u00f3n, y la dureza puede volver a aumentar.<\/p>\n      <p>El gr\u00e1fico que aparece a continuaci\u00f3n muestra la dureza t\u00edpica despu\u00e9s del doble revenido cuando el M2 se austeniza a unos 1230 \u00b0C \/ 2250 \u00b0F.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Temperatura de revenido<\/th><th>Dureza templada en aceite<\/th><th>Dureza templada al aire<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Como se apag\u00f3<\/td><td>64,0\u201366,0 HRC<\/td><td>64,0\u201366,0 HRC<\/td><\/tr>\n            <tr><td>400 \u00b0F \/ 204 \u00b0C<\/td><td>63,0 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n            <tr><td>500 \u00b0F \/ 260 \u00b0C<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><\/tr>\n            <tr><td>600 \u00b0F \/ 316 \u00b0C<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><\/tr>\n            <tr><td>700 \u00b0F \/ 371 \u00b0C<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><\/tr>\n            <tr><td>800 \u00b0F \/ 427 \u00b0C<\/td><td>63,5 HRC<\/td><td>63,5 HRC<\/td><\/tr>\n            <tr><td>900 \u00b0F \/ 482 \u00b0C<\/td><td>64,0 HRC<\/td><td>64,0 HRC<\/td><\/tr>\n            <tr><td>1000 \u00b0F \/ 540 \u00b0C<\/td><td>64,5\u201365,5 HRC<\/td><td>62,0 HRC<\/td><\/tr>\n            <tr><td>1025 \u00b0F \/ 550 \u00b0C<\/td><td>65,0 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n            <tr><td>1050 \u00b0F \/ 565 \u00b0C<\/td><td>63,5\u201365,5 HRC<\/td><td>64,0 HRC<\/td><\/tr>\n            <tr><td>1100 \u00b0F \/ 595 \u00b0C<\/td><td>61,5\u201364,0 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n            <tr><td>1150 \u00b0F \/ 620 \u00b0C<\/td><td>60,0\u201362,0 HRC<\/td><td>60,0 HRC<\/td><\/tr>\n            <tr><td>1200 \u00b0F \/ 650 \u00b0C<\/td><td>53,0\u201353,5 HRC<\/td><td>53,0 HRC<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>Para muchas aplicaciones de corte y mecanizado de herramientas en acero M2, es com\u00fan el revenido a una temperatura de entre 540 y 565 \u00b0C, ya que se sit\u00faa cerca del rango de endurecimiento secundario y equilibra la dureza, el rendimiento de corte, la tenacidad y la estabilidad.<\/p>\n      <p>El M2 no debe someterse a un revenido insuficiente. Una temperatura de revenido baja o un n\u00famero insuficiente de ciclos pueden provocar altas tensiones internas y una austenita retenida inestable. El revenido doble es el m\u00ednimo, y el revenido triple se suele utilizar para herramientas m\u00e1s exigentes.<\/p>\n\n      <h2>Efecto de la temperatura de austenizaci\u00f3n sobre la dureza templada M2<\/h2>\n      <p>La temperatura de austenizaci\u00f3n afecta la dureza final. Una temperatura de endurecimiento m\u00e1s alta disuelve m\u00e1s carbono y elementos de aleaci\u00f3n, lo que fortalece el endurecimiento secundario durante el revenido, pero tambi\u00e9n aumenta la austenita retenida y el riesgo de sobrecalentamiento.<\/p>\n      <p>La tabla que aparece a continuaci\u00f3n utiliza un conjunto de datos independiente expresado en \u00b0C, por lo que sus valores m\u00e1ximos difieren ligeramente del gr\u00e1fico de doble revenido en \u00b0F que se muestra arriba. Ambos no son contradictorios. Provienen de diferentes coladas, condiciones de austenizaci\u00f3n y configuraciones de prueba, y ambos muestran la misma tendencia: un pico de endurecimiento secundario cerca de 525\u2013550 \u00b0C, seguido de una ca\u00edda por encima de 575 \u00b0C.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Temperatura de revenido<\/th><th>Endurecido a 1180 \u00b0C<\/th><th>Endurecido a 1200 \u00b0C<\/th><th>Endurecido a 1220 \u00b0C<\/th><th>Endurecido a 1240 \u00b0C<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Como se apag\u00f3<\/td><td>66,0 HRC<\/td><td>64,0 HRC<\/td><td>65,0 HRC<\/td><td>64,0 HRC<\/td><\/tr>\n            <tr><td>200\u00b0C<\/td><td>63,0 HRC<\/td><td>61,5 HRC<\/td><td>62,5 HRC<\/td><td>61,5 HRC<\/td><\/tr>\n            <tr><td>300\u00b0C<\/td><td>62,7 HRC<\/td><td>61,5 HRC<\/td><td>62,5 HRC<\/td><td>61,5 HRC<\/td><\/tr>\n            <tr><td>400\u00b0C<\/td><td>63,0 HRC<\/td><td>62,0 HRC<\/td><td>62,5 HRC<\/td><td>62,0 HRC<\/td><\/tr>\n            <tr><td>500\u00b0C<\/td><td>63,5 HRC<\/td><td>64,0 HRC<\/td><td>64,5 HRC<\/td><td>64,5 HRC<\/td><\/tr>\n            <tr><td>525\u00b0C<\/td><td>64,5 HRC<\/td><td>65,0 HRC<\/td><td>65,5 HRC<\/td><td>66,0 HRC<\/td><\/tr>\n            <tr><td>550\u00b0C<\/td><td>64,5 HRC<\/td><td>65,5 HRC<\/td><td>66,0 HRC<\/td><td>66,5 HRC<\/td><\/tr>\n            <tr><td>575\u00b0C<\/td><td>64,0 HRC<\/td><td>63,5 HRC<\/td><td>64,5 HRC<\/td><td>66,0 HRC<\/td><\/tr>\n            <tr><td>600\u00b0C<\/td><td>62,0 HRC<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>Por eso, el M2 no debe someterse a tratamiento t\u00e9rmico \u00fanicamente para alcanzar la m\u00e1xima dureza. Una temperatura de endurecimiento m\u00e1s alta puede producir un endurecimiento secundario mayor, pero el margen de procesamiento seguro se reduce. En producci\u00f3n, el objetivo ideal es lograr una dureza estable con una tenacidad aceptable, una austenita retenida controlada y una vida \u00fatil fiable de la herramienta.<\/p>\n\n      <h2>Problemas de tratamiento t\u00e9rmico M2<\/h2>\n      <p>La mayor\u00eda de los fallos en el tratamiento t\u00e9rmico del M2 se deben a cinco factores: austenizaci\u00f3n incorrecta, remojo excesivo, protecci\u00f3n atmosf\u00e9rica deficiente, temple inadecuado y revenido insuficiente.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Problema<\/th><th>Causa principal<\/th><th>Resultado<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Baja dureza<\/td><td>Calentamiento insuficiente, soluci\u00f3n de carburo insuficiente, temple deficiente o exceso de austenita retenida.<\/td><td>La herramienta no alcanza la dureza de trabajo requerida.<\/td><\/tr>\n            <tr><td>Engrosamiento del grano<\/td><td>Sobrecalentamiento o remojo excesivo<\/td><td>Menor tenacidad y mayor riesgo de agrietamiento.<\/td><\/tr>\n            <tr><td>Austenita retenida en exceso<\/td><td>Temperatura de austenizaci\u00f3n elevada, tiempo de remojo prolongado o revenido insuficiente.<\/td><td>Cambio dimensional y dureza inestable.<\/td><\/tr>\n            <tr><td>Apaga el agrietamiento<\/td><td>choque t\u00e9rmico, estr\u00e9s severo por temple o revenido retardado<\/td><td>Agrietamiento durante o despu\u00e9s del endurecimiento.<\/td><\/tr>\n            <tr><td>Descarburaci\u00f3n<\/td><td>Calefacci\u00f3n sin protecci\u00f3n atmosf\u00e9rica<\/td><td>Superficie blanda y poca resistencia al desgaste.<\/td><\/tr>\n            <tr><td>Templado insuficiente<\/td><td>Temperatura de revenido baja o muy pocos ciclos de revenido.<\/td><td>Fragilidad y estructura inestable.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>El sobrecalentamiento y el tiempo de remojo excesivo son graves, ya que el M2 se procesa cerca de su l\u00edmite de alta temperatura. El exceso de temperatura o tiempo provoca un engrosamiento del grano, aumenta la austenita retenida, reduce la tenacidad y disminuye la fiabilidad de la herramienta. El calentamiento insuficiente impide la disoluci\u00f3n de suficientes carburos de aleaci\u00f3n, lo que reduce la dureza tras el temple y debilita el endurecimiento secundario durante el revenido.<\/p>\n      <p>En el acero M2 se espera la presencia de austenita retenida, pero un exceso de esta causa problemas. Posteriormente, durante el servicio, puede transformarse, formando martensita nueva, lo que provoca un crecimiento dimensional y tensiones internas, e incrementa el riesgo de agrietamiento. La descarburaci\u00f3n es otra causa importante de fallos: al calentarse sin vac\u00edo, en atm\u00f3sfera neutra o sin protecci\u00f3n mediante ba\u00f1o de sales, la superficie pierde carbono y permanece blanda tras el endurecimiento.<\/p>\n      <p>Los errores de revenido son especialmente costosos. El M2 requiere m\u00faltiples ciclos de revenido, ya que la transformaci\u00f3n de la austenita retenida y el revenido de la martensita reci\u00e9n formada no pueden completarse en un solo ciclo. Para un rendimiento estable, la herramienta debe enfriarse a temperatura ambiente entre revenidos.<\/p>\n\n      <div class=\"aobo-note-box\">\n        <p>Aobo Steel suministra acero para herramientas de alta velocidad M2 \/ DIN 1.3343 \/ JIS SKH51 en estado recocido y no ofrece servicios de tratamiento t\u00e9rmico final como endurecimiento, temple, tratamiento a temperaturas bajo cero o revenido.<\/p>\n        <p>Los par\u00e1metros de tratamiento t\u00e9rmico, los datos de dureza y las recomendaciones de proceso que se incluyen en esta gu\u00eda se proporcionan como referencias generales de asistencia t\u00e9cnica para los clientes. Los resultados reales pueden variar seg\u00fan la capacidad del horno, el tama\u00f1o de la secci\u00f3n, la geometr\u00eda de la herramienta, el estado del acero, el m\u00e9todo de temple, el control de la atm\u00f3sfera y la aplicaci\u00f3n final. El proveedor de tratamiento t\u00e9rmico del cliente debe confirmar y validar los procedimientos finales antes de la producci\u00f3n.<\/p>\n      <\/div>\n\n      <section class=\"aobo-final-cta\">\n        <div>\n          <h2>\u00bfNecesita acero para herramientas de alta velocidad M2 recocido para pedidos al por mayor?<\/h2>\n          <p>Aobo Steel suministra barras y chapas redondas M2 \/ DIN 1.3343 \/ JIS SKH51 con certificados de f\u00e1brica e inspecci\u00f3n dimensional antes del env\u00edo.<\/p>\n        <\/div>\n        <div class=\"aobo-supply-actions\">\n          <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/es\/m2-tool-steel\/\">Ver detalles de suministro de M2<\/a>\n        <\/div>\n      <\/section>\n    <\/main>\n  <\/div>\n<\/section>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/aobosteel.com\/es\/h13-steel-heat-treatment\/\">Gu\u00eda de tratamiento t\u00e9rmico H13 | Aobo Steel<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/es\/420-stainless-steel-heat-treatment\/\">Gu\u00eda de tratamiento t\u00e9rmico del acero 420 | Endurecimiento, temple y revenido<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/es\/h13-steel-hardness\/\">Dureza del acero H13: Rango HRC, tabla de revenido y aplicaciones.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/es\/h13-vs-h11-tool-steel\/\">Acero para herramientas H13 frente a H11: \u00bfDesgaste por calor o agrietamiento por impacto?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/es\/s7-tool-steel-heat-treatment\/\">Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas S7: temperatura, dureza y proceso.<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-faq\" class=\"wp-block-heading\">Preguntas frecuentes<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1778225160324\"><strong class=\"schema-faq-question\">\u00bfCu\u00e1l es el proceso de tratamiento t\u00e9rmico est\u00e1ndar para el acero para herramientas M2?<\/strong> <p class=\"schema-faq-answer\">El acero para herramientas M2 suele someterse a un tratamiento t\u00e9rmico mediante doble precalentamiento, austenizaci\u00f3n, temple y doble o triple revenido. Un proceso com\u00fan consiste en un primer precalentamiento a 540\u2013650 \u00b0C, un segundo precalentamiento a 845\u2013870 \u00b0C, austenizaci\u00f3n a 1190\u20131230 \u00b0C, temple en aceite, aire o ba\u00f1o de sales, y revenido a unos 538\u2013595 \u00b0C.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225180064\"><strong class=\"schema-faq-question\">\u00bfQu\u00e9 dureza puede alcanzar el acero para herramientas M2 despu\u00e9s del tratamiento t\u00e9rmico?<\/strong> <p class=\"schema-faq-answer\">Tras un endurecimiento y revenido adecuados, el acero para herramientas M2 suele alcanzar una dureza de entre 60 y 65 HRC. La dureza final depende de la temperatura de austenizaci\u00f3n, el m\u00e9todo de temple, la temperatura de revenido, el tama\u00f1o de la secci\u00f3n y el control del horno.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225180938\"><strong class=\"schema-faq-question\">\u00bfCu\u00e1l es la temperatura de austenizaci\u00f3n del acero para herramientas M2?<\/strong> <p class=\"schema-faq-answer\">La temperatura de austenizaci\u00f3n est\u00e1ndar para el acero para herramientas M2 suele ser de 1190\u20131230 \u00b0C. Se utilizan temperaturas m\u00e1s bajas cuando la tenacidad es m\u00e1s importante, mientras que se utilizan temperaturas m\u00e1s altas, cercanas a los 1230 \u00b0C, cuando se requiere la m\u00e1xima dureza, resistencia al desgaste y dureza en caliente.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225182490\"><strong class=\"schema-faq-question\">\u00bfCu\u00e1nto tiempo debe mantenerse el acero para herramientas M2 a la temperatura de austenizaci\u00f3n?<\/strong> <p class=\"schema-faq-answer\">El acero para herramientas M2 debe mantenerse a la temperatura de austenizaci\u00f3n durante un breve periodo, generalmente entre 2 y 5 minutos despu\u00e9s de que la herramienta alcance dicha temperatura. Un mantenimiento prolongado puede provocar el engrosamiento del grano, una retenci\u00f3n excesiva de austenita, una menor tenacidad y una dureza inestable.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225183344\"><strong class=\"schema-faq-question\">\u00bfSe puede templar al aire el acero para herramientas M2?<\/strong> <p class=\"schema-faq-answer\">S\u00ed. El M2 se puede templar al aire, en aceite o en un ba\u00f1o de sales calientes. El templado al aire es m\u00e1s suave y puede ayudar a reducir la deformaci\u00f3n, especialmente en secciones peque\u00f1as. El templado en aceite puede proporcionar una mayor dureza, mientras que el templado en ba\u00f1o de sales ofrece una mejor uniformidad de la temperatura y un mayor control de la deformaci\u00f3n.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225223632\"><strong class=\"schema-faq-question\">\u00bfPor qu\u00e9 el M2 necesita un doble o triple templado?<\/strong> <p class=\"schema-faq-answer\">Tras el temple, la aleaci\u00f3n M2 contiene una cantidad significativa de austenita retenida. Durante el revenido y el enfriamiento entre tratamientos t\u00e9rmicos, la austenita retenida puede transformarse en martensita fresca. Se requiere un segundo o tercer tratamiento t\u00e9rmico para templar esta martensita, reducir las tensiones internas y estabilizar la dureza y la tenacidad finales.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225224577\"><strong class=\"schema-faq-question\">\u00bfCu\u00e1l es la temperatura de revenido \u00f3ptima para el acero para herramientas M2?<\/strong> <p class=\"schema-faq-answer\">Para muchas aplicaciones de corte y mecanizado de M2, es com\u00fan el revenido a 540\u2013565 \u00b0C, ya que este rango se encuentra cerca del pico de endurecimiento secundario. Esto ayuda a equilibrar la dureza, el rendimiento de corte, la tenacidad y la estabilidad dimensional.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225252503\"><strong class=\"schema-faq-question\">\u00bfPor qu\u00e9 se debe templar el M2 inmediatamente despu\u00e9s del enfriamiento?<\/strong> <p class=\"schema-faq-answer\">El M2 debe templarse inmediatamente despu\u00e9s de enfriarse a unos 66\u201393 \u00b0C, ya que su estructura, tras el temple, est\u00e1 sometida a altas tensiones y es inestable. Un templado tard\u00edo puede aumentar el riesgo de agrietamiento, cambios dimensionales e inestabilidad debido a la austenita retenida.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225253785\"><strong class=\"schema-faq-question\">\u00bfQu\u00e9 causa la baja dureza despu\u00e9s del tratamiento t\u00e9rmico M2?<\/strong> <p class=\"schema-faq-answer\">La baja dureza puede deberse a un calentamiento insuficiente, una disoluci\u00f3n de carburo inadecuada, un temple incorrecto, un exceso de austenita retenida, descarburaci\u00f3n o un revenido incorrecto. Para el M2, tanto la temperatura como el tiempo de mantenimiento deben controlarse cuidadosamente, ya que el margen de tratamiento t\u00e9rmico es estrecho.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>M2 Tool Steel Heat Treatment Guide M2 tool steel is heat-treated by double preheating, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or a salt bath, then double or triple tempering at 538\u2013595\u00b0C. Tempered correctly, M2 reaches about 60\u201365 HRC, with the high hardness, wear resistance, and red hardness expected from a high-speed steel. A typical [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15110,"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-11688","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart<\/title>\n<meta name=\"description\" content=\"M2 heat treatment guide with preheating, austenitizing, quenching, tempering temperatures, and hardness chart. 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A common process uses first preheating at 540\u2013650\u00b0C, second preheating at 845\u2013870\u00b0C, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or salt bath, and tempering at about 538\u2013595\u00b0C.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180064\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180064\",\"name\":\"What hardness can M2 tool steel reach after heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"After proper hardening and tempering, M2 tool steel typically reaches about 60\u201365 HRC. The final hardness depends on the austenitizing temperature, quenching method, tempering temperature, section size, and furnace control.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180938\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180938\",\"name\":\"What is the austenitizing temperature for M2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The standard austenitizing temperature for M2 tool steel is usually 1190\u20131230\u00b0C. Lower temperatures are used when toughness is more important, while higher temperatures near 1230\u00b0C are used when maximum hardness, wear resistance, and red hardness are required.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225182490\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225182490\",\"name\":\"How long should M2 tool steel be soaked at the austenitizing temperature?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"M2 tool steel should be soaked for only a short time at the austenitizing temperature, usually about 2\u20135 minutes after the tool reaches temperature. 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A common process uses first preheating at 540\u2013650\u00b0C, second preheating at 845\u2013870\u00b0C, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or salt bath, and tempering at about 538\u2013595\u00b0C.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180064","position":2,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180064","name":"\u00bfQu\u00e9 dureza puede alcanzar el acero para herramientas M2 despu\u00e9s del tratamiento t\u00e9rmico?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"After proper hardening and tempering, M2 tool steel typically reaches about 60\u201365 HRC. The final hardness depends on the austenitizing temperature, quenching method, tempering temperature, section size, and furnace control.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180938","position":3,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180938","name":"\u00bfCu\u00e1l es la temperatura de austenizaci\u00f3n del acero para herramientas M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The standard austenitizing temperature for M2 tool steel is usually 1190\u20131230\u00b0C. Lower temperatures are used when toughness is more important, while higher temperatures near 1230\u00b0C are used when maximum hardness, wear resistance, and red hardness are required.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225182490","position":4,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225182490","name":"\u00bfCu\u00e1nto tiempo debe mantenerse el acero para herramientas M2 a la temperatura de austenizaci\u00f3n?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"M2 tool steel should be soaked for only a short time at the austenitizing temperature, usually about 2\u20135 minutes after the tool reaches temperature. Long soaking can cause grain coarsening, excessive retained austenite, reduced toughness, and unstable hardness.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225183344","position":5,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225183344","name":"\u00bfSe puede templar al aire el acero para herramientas M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. M2 can be quenched in air, oil, or a hot salt bath. Air quenching is milder and can help reduce distortion, especially for smaller sections. 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The second or third temper is needed to temper this fresh martensite, reduce internal stress, and stabilize final hardness and toughness.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225224577","position":7,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225224577","name":"\u00bfCu\u00e1l es la temperatura de revenido \u00f3ptima para el acero para herramientas M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For many M2 cutting and tooling applications, tempering at 540\u2013565\u00b0C is common because this range is near the secondary hardening peak. It helps balance hardness, cutting performance, toughness, and dimensional stability.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225252503","position":8,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225252503","name":"\u00bfPor qu\u00e9 se debe templar el M2 inmediatamente despu\u00e9s del enfriamiento?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"M2 should be tempered immediately after cooling to about 66\u201393\u00b0C because the as-quenched structure is highly stressed and unstable. Delayed tempering can increase the risk of cracking, dimensional changes, and instability due to retained austenite.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225253785","position":9,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225253785","name":"\u00bfQu\u00e9 causa la baja dureza despu\u00e9s del tratamiento t\u00e9rmico M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Low hardness may result from underheating, insufficient carbide solution, incorrect quenching, excessive retained austenite, decarburization, or improper tempering. 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Tempered correctly, M2 reaches about 60\u201365 HRC, with the high hardness, wear resistance, and red hardness expected from a high-speed steel. 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