{"id":19812,"date":"2026-09-26T04:06:46","date_gmt":"2026-09-25T20:06:46","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=19812"},"modified":"2026-10-16T00:02:13","modified_gmt":"2026-10-15T16:02:13","slug":"m3-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/m3-tool-steel-heat-treatment\/","title":{"rendered":"Tratamiento t\u00e9rmico del acero para herramientas M3"},"content":{"rendered":"

Tratamiento t\u00e9rmico del acero para herramientas M3<\/h1>\n\n\n\n

La temperatura de temple, el medio de enfriamiento y la respuesta al revenido del acero r\u00e1pido M3 en ambas clases, tal como los publica la ficha de origen. Un resumen de referencia de la pr\u00e1ctica publicada y no una especificaci\u00f3n de Aobo Steel.<\/p>\n\n\n\n

M3 en el grupo de los aceros r\u00e1pidos<\/h2>\n\n\n\n

El M3 es un acero r\u00e1pido al molibdeno-tungsteno, el grado al que recurre un taller cuando una herramienta de corte tiene que mantener el filo a velocidad y soportar el calor que ello conlleva. La fuente lo publica en dos clases y etiqueta las dos fichas como M3-1 y M3-2, y esas son las etiquetas usadas en las tablas siguientes. La diferencia entre las clases est\u00e1 en el carbono y el vanadio. La clase 1 contiene 1,05% de carbono y 2,50% de vanadio, la clase 2 contiene 1,20% de carbono y 3,00% de vanadio, y cada clase tiene su propia temperatura de temple y su propia l\u00ednea de revenido.<\/p>\n\n\n\n

La ficha es informaci\u00f3n de referencia para el taller y no una especificaci\u00f3n. Indica un paso de precalentamiento, una temperatura de temple y un medio de enfriamiento para cada clase, luego una tabla de revenido con un \u00fanico valor de dureza en cada fila y sin banda de tolerancia en ninguna parte. Conviene probar una primera herramienta cortada de una nueva colada de acero como ensayo antes de aplicar el ciclo a una herramienta de producci\u00f3n.<\/p>\n\n\n\n

Composici\u00f3n qu\u00edmica del M3 clase 1 y clase 2<\/h2>\n\n\n\n

Elementos que la ficha de referencia enumera, porcentaje<\/h3>\n\n\n\n
Grado<\/th>C<\/th>Mn<\/th>Si<\/th>Cr<\/th>Mo<\/th>V<\/th>W<\/th><\/tr><\/thead>
M3-1<\/td>1.05<\/td>0.30<\/td>0.30<\/td>4.00<\/td>5.00<\/td>2.50<\/td>6.00<\/td><\/tr>
M3-2<\/td>1.20<\/td>0.80<\/td>0.55<\/td>4.00<\/td>5.00<\/td>3.00<\/td>6.00<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Fuente, informaci\u00f3n de referencia de tratamiento t\u00e9rmico para M3 clase 1 y clase 2, p\u00e1ginas impresas 190 y 191.<\/em><\/p>\n\n\n\n

La ficha indica un \u00fanico valor para cada elemento en lugar de un rango de especificaci\u00f3n. El cobalto aparece en ambas clases y el azufre en la clase 1 sin valor, por lo que esas filas se omiten de la tabla en lugar de mostrarse como cero. Se indica un valor de azufre, 0,27% en la ficha de la clase 2, que est\u00e1 muy por encima del nivel de azufre normalmente especificado para el acero r\u00e1pido, por lo que no se incluye en la tabla y se registra aqu\u00ed tal como lo publica la fuente.<\/em><\/p>\n\n\n\n

Ambas clases contienen 6,00% de tungsteno y 5,00% de molibdeno, el par de formadores de carburos sobre el que se construye el grado, junto con 4,00% de cromo. El carbono y el vanadio son los dos valores que separan las clases, con 1,05% y 2,50% en la clase 1 y con 1,20% y 3,00% en la clase 2. La ficha lista el cobalto en ambas clases y el azufre en la clase 1 sin valor, por lo que esas filas se omiten de la tabla en lugar de indicarse como cero, y el \u00fanico valor de azufre que s\u00ed indica la ficha de la clase 2 se registra bajo la tabla en lugar de incluirse en ella. Los datos de composici\u00f3n de la tabla son solo de referencia general, los valores reales var\u00edan seg\u00fan la norma, la acer\u00eda y el n\u00famero de colada, por lo que conviene confirmar los valores con el certificado de ensayo del material de la colada o consultar a Aobo Steel.<\/p>\n\n\n\n

Temple del M3<\/h2>\n\n\n\n

Precalentamiento, temperatura de temple y enfriamiento<\/h3>\n\n\n\n
Paso<\/th>M3-1<\/th>M3-2<\/th><\/tr><\/thead>
Precalentamiento<\/td>1500 \u00b0F (815 \u00b0C)<\/td>1500 \u00b0F (815 \u00b0C)<\/td><\/tr>
Templar<\/td>2250 \u00b0F (1230 \u00b0C)<\/td>2225 \u00b0F (1220 \u00b0C)<\/td><\/tr>
Medio de temple<\/td>Aceite o sal<\/td>Aceite o sal<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Fuente, informaci\u00f3n de referencia de tratamiento t\u00e9rmico para M3 clase 1 y clase 2, p\u00e1ginas impresas 190 y 191.<\/em><\/p>\n\n\n\n

La ficha indica un paso de precalentamiento sin condici\u00f3n de tama\u00f1o asociada, por lo que el paso no se marca como necesario solo para secciones mayores. Para ambas clases se da aceite o sal como medio de enfriamiento, sin alternativa de aire indicada al lado.<\/em><\/p>\n\n\n\n

El precalentamiento es de 1500 \u00b0F (815 \u00b0C) en ambas fichas. Las temperaturas de temple difieren en 25 \u00b0F (10 \u00b0C), con 2250 \u00b0F (1230 \u00b0C) para la clase 1 y 2225 \u00b0F (1220 \u00b0C) para la clase 2, y la clase m\u00e1s aleada es a la que la fuente asigna una temperatura un poco m\u00e1s baja, que es la direcci\u00f3n que toma un taller cuando busca el grano m\u00e1s fino por el que se compra esa clase. Ambas fichas dan aceite o sal como medio de enfriamiento, y ninguna ficha indica temple al aire para el grado, por lo que la elecci\u00f3n en el tanque es aceite frente a sal.<\/p>\n\n\n\n

Respuesta al revenido del M3<\/h2>\n\n\n\n

Dureza que deja cada temperatura de revenido<\/h3>\n\n\n\n
Revenido, \u00b0F<\/th>\u00b0C<\/th>M3-1, HRC<\/th>M3-2, HRC<\/th><\/tr><\/thead>
Reci\u00e9n templado<\/td>Sin revenido<\/td>65<\/td>65<\/td><\/tr>
900<\/td>480<\/td>64<\/td>63<\/td><\/tr>
950<\/td>510<\/td>67<\/td>66<\/td><\/tr>
1000<\/td>540<\/td>67<\/td>66<\/td><\/tr>
1050<\/td>565<\/td>65<\/td>66<\/td><\/tr>
1100<\/td>595<\/td>61<\/td>65<\/td><\/tr>
1150<\/td>620<\/td>56<\/td>63<\/td><\/tr>
1200<\/td>650<\/td>52<\/td>60<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Fuente, informaci\u00f3n de referencia de tratamiento t\u00e9rmico para M3 clase 1 y clase 2, p\u00e1ginas impresas 190 y 191.<\/em><\/p>\n\n\n\n

La ficha escalona las temperaturas de revenido en pasos de 50 \u00b0F desde 900 \u00b0F hasta 1200 \u00b0F e indica un valor de Rockwell C para cada clase en cada fila. La primera fila es la dureza tal como se templa, antes de cualquier revenido, y el aumento en las dos filas siguientes es endurecimiento secundario.<\/em><\/p>\n\n\n\n

Ambas clases salen del temple a 65 HRC y ambas l\u00edneas suben antes de bajar, que es el endurecimiento secundario que sigue al primer revenido. La clase 1 sube a 67 HRC a 950 y 1000 \u00b0F (510 y 540 \u00b0C) y luego cae a 52 HRC a 1200 \u00b0F (650 \u00b0C). La clase 2 sube a 66 HRC en el mismo par de filas y a\u00fan mantiene 60 HRC a 1200 \u00b0F (650 \u00b0C), que son ocho puntos por encima de la clase 1 en el extremo superior del rango. Una herramienta que trabaja en caliente y tiene que mantener el filo se reviene en ese rango superior, y la diferencia entre las dos l\u00edneas all\u00ed es la diferencia pr\u00e1ctica entre las clases.<\/p>\n\n\n\n

\n

Tratamiento t\u00e9rmico del acero para herramientas M3, PDF imprimible<\/strong><\/p>\n\n

La composici\u00f3n qu\u00edmica, el ciclo de temple y la respuesta al revenido del M3 clase 1 y clase 2 de esta p\u00e1gina en un solo PDF, con nuestros datos de contacto.<\/p>\n\n

\n
Descargar PDF, 381 KB<\/a><\/div>\n\n<\/div>\n<\/div>\n\n\n\n

Datos de referencia relacionados<\/h2>\n\n\n\n

Los grados que acompa\u00f1an al M3 en el grupo de los aceros r\u00e1pidos se detallan en la p\u00e1gina de tratamiento t\u00e9rmico del acero M2<\/a>, y las herramientas de corte por las que se compra el grupo est\u00e1n en la p\u00e1gina de acero r\u00e1pido para herramientas de corte<\/a>. Las bandas de revenido de los grados al molibdeno est\u00e1n en la Tabla de revenido del acero para herramientas<\/a>, las bandas de temple y revenido de todos los grupos est\u00e1n en la tabla de temple y revenido del acero para herramientas<\/a>, y los rangos de composici\u00f3n de la serie M est\u00e1n en la Tabla de composici\u00f3n del acero para herramientas<\/a>. Las medidas de stock de los grados al cobalto y al molibdeno est\u00e1n en la p\u00e1gina del acero para herramientas M42<\/a> y la p\u00e1gina del acero para herramientas M35<\/a>.<\/p>\n\n\n\n

Datos de referencia recopilados de Heat Treatment, Selection, and Application of Tool Steels (William E. Bryson, segunda edici\u00f3n, Hanser). La composici\u00f3n qu\u00edmica, el ciclo de temple y la respuesta al revenido del M3 clase 1 y clase 2 provienen de la informaci\u00f3n de referencia de tratamiento t\u00e9rmico de las p\u00e1ginas impresas 190 y 191.<\/p>","protected":false},"excerpt":{"rendered":"

M3 Tool Steel Heat Treatment The hardening temperature, the quench medium and the tempering response of M3 high speed steel in both classes, set out as the source card publishes it. A reference summary of published practice and not an Aobo Steel specification. M3 in the high speed group M3 is a molybdenum-tungsten high speed […]<\/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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