{"id":11776,"date":"2025-12-29T19:03:08","date_gmt":"2025-12-29T11:03:08","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11776"},"modified":"2026-05-15T11:57:45","modified_gmt":"2026-05-15T03:57:45","slug":"d2-tool-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/d2-tool-steel-heat-treatment-guide\/","title":{"rendered":"Gu\u00eda de tratamiento t\u00e9rmico D2: Tabla de revenido, dureza y proceso."},"content":{"rendered":"
\"\"<\/figure>\n\n\n\n

Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas D2<\/h1>\n\n\n\n

El acero para herramientas D2 se somete habitualmente a un tratamiento t\u00e9rmico mediante un precalentamiento a 649-677 \u00b0C (1200-1250 \u00b0F), una austenizaci\u00f3n a 980-1025 \u00b0C (1795-1875 \u00b0F), un enfriamiento r\u00e1pido con aire, gas, aceite o ba\u00f1o de sales, seg\u00fan el tama\u00f1o de la secci\u00f3n, y un doble revenido a 480-515 \u00b0C (900-960 \u00b0F). En muchas aplicaciones de herramientas para trabajo en fr\u00edo, este proceso produce una dureza de aproximadamente 58-60 HRC, a la vez que mejora la estabilidad dimensional y reduce el riesgo de retenci\u00f3n de austenita, agrietamiento y deformaci\u00f3n.<\/p>\n\n\n\n

Debido a que el acero D2 es un acero para herramientas de alto contenido de carbono y cromo, endurecible al aire, el tratamiento t\u00e9rmico debe controlarse en cuanto a temperatura, tiempo de remojo, tama\u00f1o de secci\u00f3n, m\u00e9todo de temple y estrategia de revenido. No siempre es posible utilizar un punz\u00f3n peque\u00f1o, un bloque de matriz grande y un calibre de precisi\u00f3n en el mismo proceso. Esta gu\u00eda explica la secuencia pr\u00e1ctica del tratamiento t\u00e9rmico del acero D2, incluyendo el precalentamiento, la austenizaci\u00f3n, el temple, el tratamiento criog\u00e9nico opcional, el revenido, la selecci\u00f3n de la dureza, el riesgo asociado al tama\u00f1o de secci\u00f3n y las fallas comunes del tratamiento t\u00e9rmico.<\/p>\n\n\n\n

Tabla de par\u00e1metros r\u00e1pidos del tratamiento t\u00e9rmico D2<\/h2>\n\n\n\n
Paso<\/td>Rango recomendado<\/td>Prop\u00f3sito<\/td><\/tr>
Precalentamiento<\/td>1200\u20131250 \u00b0F \/ 649\u2013677 \u00b0C<\/td>Reduzca el riesgo de choque t\u00e9rmico y agrietamiento.<\/td><\/tr>
Austenitizaci\u00f3n<\/td>1795\u20131875 \u00b0F \/ 980\u20131025 \u00b0C<\/td>Formar austenita y disolver los carburos de aleaci\u00f3n.<\/td><\/tr>
Enfriamiento<\/td>Ba\u00f1o de aire, gas, aceite o sal, seg\u00fan el tama\u00f1o de la secci\u00f3n.<\/td>Endurezca el acero con distorsi\u00f3n controlada.<\/td><\/tr>
Tratamiento criog\u00e9nico opcional<\/td>Hasta -196 \u00b0C<\/td>Reducir la austenita retenida y mejorar la estabilidad dimensional.<\/td><\/tr>
Templado<\/td>900\u2013960 \u00b0F \/ 480\u2013515 \u00b0C, doble templado<\/td>Mejora la estabilidad y alcanza aproximadamente 58\u201360 HRC.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Proceso de tratamiento t\u00e9rmico D2 paso a paso<\/h2>\n\n\n\n

El tratamiento t\u00e9rmico D2 consta de cinco etapas principales: precalentamiento, austenizaci\u00f3n, temple, tratamiento criog\u00e9nico opcional y revenido. Cada etapa afecta la dureza final, la deformaci\u00f3n dimensional, la austenita retenida y el riesgo de agrietamiento.<\/p>\n\n\n\n

Los par\u00e1metros que se indican a continuaci\u00f3n son rangos de referencia pr\u00e1cticos. Los ajustes finales del tratamiento t\u00e9rmico deben adaptarse a la capacidad del horno, el espesor de la secci\u00f3n, la geometr\u00eda de la pieza y la dureza de trabajo requerida.<\/p>\n\n\n\n

Paso 1: Precalentamiento del acero para herramientas D2<\/h3>\n\n\n\n

El precalentamiento reduce el choque t\u00e9rmico cuando el material D2 se calienta a la temperatura de endurecimiento. Esto es importante porque el D2 tiene una conductividad t\u00e9rmica relativamente baja. Si la superficie se calienta mucho m\u00e1s r\u00e1pido que el n\u00facleo, las tensiones internas pueden provocar deformaciones o grietas.<\/p>\n\n\n\n

La temperatura t\u00edpica de precalentamiento es de 649\u2013677 \u00b0C (1200\u20131250 \u00b0F). La pieza debe mantenerse en esa posici\u00f3n hasta que la secci\u00f3n transversal alcance una temperatura uniforme. Las secciones gruesas requieren un tiempo de ecualizaci\u00f3n mayor que las piezas delgadas.<\/p>\n\n\n\n

El material D2 debe calentarse en un horno de vac\u00edo, en un horno de atm\u00f3sfera controlada, en un ba\u00f1o de sales neutras o protegido con una l\u00e1mina de acero inoxidable. Sin protecci\u00f3n superficial, la oxidaci\u00f3n y la descarburaci\u00f3n pueden reducir la dureza superficial y la resistencia al desgaste tras el endurecimiento.<\/p>\n\n\n\n

Paso 2: Austenizaci\u00f3n y endurecimiento del acero D2<\/h3>\n\n\n\n

Tras el precalentamiento, el acero D2 se eleva a la temperatura de austenizaci\u00f3n. El rango t\u00edpico es de 1795\u20131875 \u00b0F \/ 980\u20131025 \u00b0C, utiliz\u00e1ndose a menudo 1850 \u00b0F \/ 1010 \u00b0C como referencia pr\u00e1ctica.<\/p>\n\n\n\n

El tiempo de remojo debe comenzar solo despu\u00e9s de que toda la secci\u00f3n alcance la temperatura deseada. Un valor de referencia com\u00fan es de 45 a 60 minutos por pulgada de espesor, ajustado seg\u00fan la carga del horno, la secci\u00f3n transversal y la geometr\u00eda de la herramienta.<\/p>\n\n\n\n

Una temperatura demasiado baja o un tiempo de remojo demasiado corto pueden provocar que los carburos no se disuelvan lo suficiente, reduciendo la dureza y la resistencia al desgaste. Una temperatura demasiado alta o un tiempo de remojo demasiado prolongado pueden aumentar la austenita retenida, el engrosamiento del grano, la fragilidad y el riesgo de agrietamiento.<\/p>\n\n\n\n

Paso 3: Templado del acero para herramientas D2<\/h3>\n\n\n\n

El acero D2 es un acero para herramientas de endurecimiento al aire. A menudo se prefiere el enfriamiento controlado por aire o el temple en gas, ya que reduce la deformaci\u00f3n en comparaci\u00f3n con el temple en l\u00edquido severo.<\/p>\n\n\n\n

Para secciones de mayor tama\u00f1o o geometr\u00edas especiales, se puede utilizar el enfriamiento en ba\u00f1o de sales o en aceite. Estos m\u00e9todos pueden aumentar la velocidad de enfriamiento, pero tambi\u00e9n incrementan la tensi\u00f3n t\u00e9rmica y el riesgo de agrietamiento. El m\u00e9todo de enfriamiento debe seleccionarse seg\u00fan el tama\u00f1o de la secci\u00f3n y la dureza requerida, no por costumbre.<\/p>\n\n\n\n

Tras el temple, la herramienta debe enfriarse normalmente hasta alcanzar una temperatura de entre 50 y 66 \u00b0C (120-150 \u00b0F) antes del revenido. En esta etapa, el acero es duro pero est\u00e1 sometido a una alta tensi\u00f3n. El revenido debe comenzar inmediatamente.<\/p>\n\n\n\n

\"Diagrama
Diagrama TTT de acero para herramientas D2<\/strong>
Este diagrama muestra el comportamiento de transformaci\u00f3n isot\u00e9rmica del acero para herramientas D2 despu\u00e9s de la austenizaci\u00f3n a 980 \u00b0C (1800 \u00b0F) durante 1 hora<\/strong>. Esto respalda el debate sobre el temple al mostrar por qu\u00e9 el D2 puede endurecerse bajo enfriamiento controlado con aire o gas, mientras que el tama\u00f1o de la secci\u00f3n y la velocidad de enfriamiento a\u00fan afectan la dureza final y la estabilidad dimensional.
Fuente:<\/strong> Aceros para herramientas<\/em>, George Adam Roberts, George Krauss, Richard Kennedy, p\u00e1g. 206, Fig. 12-3.<\/figcaption><\/figure>\n\n\n\n

Paso 4: Tratamiento criog\u00e9nico opcional para el acero para herramientas D2<\/h3>\n\n\n\n

El tratamiento criog\u00e9nico es opcional. Se utiliza principalmente cuando la estabilidad dimensional, el control de la austenita retenida y la uniformidad del desgaste son cruciales. Es m\u00e1s relevante para matrices de precisi\u00f3n, punzones, calibres, herramientas de corte y herramientas de alto desgaste que para piezas de uso general.<\/p>\n\n\n\n

El tratamiento criog\u00e9nico profundo puede enfriar el acero D2 hasta aproximadamente -196 \u00b0C. El acero D2 endurecido no debe someterse a un enfriamiento repentino e incontrolado, ya que los cambios bruscos de temperatura pueden aumentar el riesgo de agrietamiento.<\/p>\n\n\n\n

El tratamiento criog\u00e9nico puede realizarse despu\u00e9s del temple y antes del revenido, o entre ciclos de revenido, seg\u00fan el m\u00e9todo de tratamiento t\u00e9rmico empleado. Si se realiza despu\u00e9s del temple, el revenido debe efectuarse una vez que la pieza haya alcanzado la temperatura ambiente. La martensita reci\u00e9n formada est\u00e1 sometida a altas tensiones y debe ser revenida.<\/p>\n\n\n\n

Paso 5: Templado del acero para herramientas D2<\/h3>\n\n\n\n

Tras el endurecimiento D2, es necesario realizar un revenido. El acero D2 templado es duro pero fr\u00e1gil. El revenido reduce las tensiones internas, mejora la tenacidad, estabiliza la microestructura y ayuda a controlar la austenita retenida.<\/p>\n\n\n\n

El doble revenido se recomienda normalmente para el acero D2. El triple revenido puede utilizarse para herramientas cr\u00edticas o cuando el control de la austenita retenida es especialmente importante. La pieza debe enfriarse a temperatura ambiente entre cada ciclo de revenido.<\/p>\n\n\n\n

Estrategia de templado<\/td>Temperatura t\u00edpica<\/td>Resultado esperado<\/td>Mejor utilizado cuando<\/td><\/tr>
Templado a baja temperatura<\/td>Alrededor de 400 \u00b0F \/ 205 \u00b0C<\/td>Aproximadamente 60\u201362 HRC<\/td>La dureza m\u00e1xima es m\u00e1s importante que la estabilidad dimensional.<\/td><\/tr>
Doble templado a alta temperatura<\/td>900\u2013960 \u00b0F \/ 480\u2013515 \u00b0C<\/td>Aproximadamente 58\u201360 HRC<\/td>La estabilidad dimensional, el alivio de tensiones y el control de la austenita retenida son importantes.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Para la mayor\u00eda de las herramientas industriales de acero D2, el doble templado a alta temperatura (900\u2013960 \u00b0F \/ 480\u2013515 \u00b0C) proporciona un equilibrio m\u00e1s seguro entre dureza, resistencia al desgaste, estabilidad y resistencia al agrietamiento.<\/p>\n\n\n\n

Tabla de temperatura y dureza de revenido D2<\/h2>\n\n\n\n

La dureza final depende de la temperatura de austenizaci\u00f3n, el m\u00e9todo de temple, la temperatura de revenido, el n\u00famero de ciclos de revenido, el tama\u00f1o de la secci\u00f3n y si se utiliza o no un tratamiento criog\u00e9nico.<\/p>\n\n\n\n

Temperatura de revenido<\/td>Condici\u00f3n t\u00edpica<\/td>Dureza esperada<\/td><\/tr>
Como se apag\u00f3<\/td>Endurecimiento est\u00e1ndar<\/td>Aproximadamente 64 HRC<\/td><\/tr>
300 \u00b0F \/ 150 \u00b0C<\/td>Temperatura baja<\/td>Aproximadamente 62 HRC<\/td><\/tr>
400 \u00b0F \/ 205 \u00b0C<\/td>Temperatura baja<\/td>Aproximadamente 61 HRC<\/td><\/tr>
500 \u00b0F \/ 260 \u00b0C<\/td>Templado<\/td>Aproximadamente 60 HRC<\/td><\/tr>
600 \u00b0F \/ 315 \u00b0C<\/td>Templado<\/td>Aproximadamente 59 HRC<\/td><\/tr>
700 \u00b0F \/ 370 \u00b0C<\/td>Templado<\/td>Aproximadamente 58 HRC<\/td><\/tr>
800 \u00b0F \/ 425 \u00b0C<\/td>Templado<\/td>Aproximadamente 58 HRC<\/td><\/tr>
900 \u00b0F \/ 480 \u00b0C<\/td>Temperatura elevada<\/td>Aproximadamente 58 HRC<\/td><\/tr>
960 \u00b0F \/ 515 \u00b0C<\/td>Temperatura elevada<\/td>Aproximadamente 58\u201360 HRC dependiendo de la pr\u00e1ctica<\/td><\/tr>
1000 \u00b0F \/ 540 \u00b0C<\/td>Temperatura elevada<\/td>Aproximadamente 55 HRC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Esta tabla es solo una referencia, no un resultado garantizado. La dureza real depende del control del horno, la velocidad de enfriamiento, el espesor de la secci\u00f3n y el estado original del material.<\/p>\n\n\n\n

Estrategias clave de templado para el acero para herramientas D2<\/h2>\n\n\n\n

La temperatura de revenido debe seleccionarse seg\u00fan el riesgo de fallo de la herramienta. Si el riesgo principal es el desgaste abrasivo y la herramienta soporta cargas de impacto limitadas, se puede utilizar un revenido a baja temperatura para mantener una mayor dureza. Si los riesgos principales son el agrietamiento, la variaci\u00f3n dimensional, la retenci\u00f3n de austenita o un rendimiento de producci\u00f3n inconsistente, el doble revenido a alta temperatura suele ser m\u00e1s seguro.<\/p>\n\n\n\n

El revenido a baja temperatura, alrededor de 205 \u00b0C (400 \u00b0F), puede producir una dureza de aproximadamente 60-62 HRC. Esto resulta \u00fatil cuando se requiere m\u00e1xima dureza y resistencia a la abrasi\u00f3n. La limitaci\u00f3n radica en que el control de la austenita retenida y la estabilidad dimensional pueden ser menores que con el doble revenido a alta temperatura.<\/p>\n\n\n\n

El doble revenido a alta temperatura (480-515 \u00b0C) suele dar como resultado una dureza de 58-60 HRC. Si bien la dureza puede ser menor, la herramienta suele obtener un mejor alivio de tensiones, mayor estabilidad y fiabilidad. Para muchos troqueles, punzones, fresas y herramientas de precisi\u00f3n para trabajo en fr\u00edo, este rango de dureza de trabajo resulta m\u00e1s pr\u00e1ctico que buscar la m\u00e1xima dureza posible (HRC).<\/p>\n\n\n\n

Si la herramienta D2 se someter\u00e1 posteriormente a nitruraci\u00f3n, recubrimiento PVD u otro tratamiento superficial a alta temperatura, la temperatura de revenido debe seleccionarse teniendo en cuenta la temperatura del recubrimiento. El acero del n\u00facleo debe revenirse normalmente por encima de la temperatura del recubrimiento posterior para evitar una p\u00e9rdida inesperada de dureza.<\/p>\n\n\n\n

Dureza objetivo para diferentes aplicaciones de herramientas D2<\/h2>\n\n\n\n

La dureza de trabajo pr\u00e1ctica del acero para herramientas D2 se suele seleccionar entre 56 HRC y 62 HRC. Una mayor dureza puede mejorar la resistencia al desgaste, pero tambi\u00e9n aumenta el riesgo de astillamiento y agrietamiento.<\/p>\n\n\n\n

Aplicaci\u00f3n<\/td>Dureza t\u00edpica del objetivo<\/td>L\u00f3gica de selecci\u00f3n<\/td><\/tr>
Matrices de corte de tiradas largas<\/td>58\u201362 HRC<\/td>Equilibrio entre el desgaste de los bordes y el riesgo de agrietamiento<\/td><\/tr>
Punzones de borrado<\/td>58\u201362 HRC<\/td>Mantener la resistencia al desgaste a la vez que se reduce el riesgo de rotura.<\/td><\/tr>
Troqueles de conformado y doblado<\/td>58\u201360 HRC<\/td>Mejora la resistencia y reduce el astillado.<\/td><\/tr>
Cortadoras longitudinales y cuchillas de corte<\/td>58\u201361 HRC<\/td>Mantener la retenci\u00f3n del filo bajo corte abrasivo<\/td><\/tr>
Herramientas de extrusi\u00f3n en fr\u00edo<\/td>58\u201362 HRC<\/td>Equilibrio entre resistencia a la compresi\u00f3n, tenacidad y desgaste.<\/td><\/tr>
Calibres y herramientas de medici\u00f3n<\/td>58\u201360 HRC<\/td>Priorizar la estabilidad dimensional y la resistencia al desgaste.<\/td><\/tr>
Peines de laminado de roscas<\/td>58\u201360 HRC<\/td>Mantener la resistencia al desgaste de la superficie y la resistencia a la compresi\u00f3n.<\/td><\/tr>
Insertos de molde de pl\u00e1stico abrasivo peque\u00f1o<\/td>58\u201360 HRC<\/td>Utilizar cuando se requiera resistencia a la abrasi\u00f3n.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Para herramientas sensibles a los impactos, la m\u00e1xima dureza no siempre es la mejor opci\u00f3n. Una dureza ligeramente inferior, con mayor tenacidad y estabilidad, puede proporcionar una vida \u00fatil m\u00e1s prolongada que una dureza superior, que conlleva el riesgo de agrietamiento.<\/p>\n\n\n\n

Tama\u00f1o de la secci\u00f3n y riesgo del tratamiento t\u00e9rmico<\/h2>\n\n\n\n

El tama\u00f1o de la secci\u00f3n influye notablemente en el tratamiento t\u00e9rmico D2. Las secciones gruesas se calientan y enfr\u00edan m\u00e1s lentamente que las delgadas. Las esquinas afiladas, los agujeros ciegos y los cambios bruscos de espesor aumentan la distorsi\u00f3n y el riesgo de agrietamiento.<\/p>\n\n\n\n

Las herramientas grandes de acero D2 deben calentarse de forma lenta y uniforme. Si la superficie alcanza la temperatura de endurecimiento mientras el n\u00facleo permanece mucho m\u00e1s fr\u00edo, pueden generarse tensiones internas severas. Por ello, el precalentamiento es especialmente importante para bloques grandes y herramientas complejas.<\/p>\n\n\n\n

Durante el temple, las secciones delgadas se enfr\u00edan y transforman m\u00e1s r\u00e1pido que las secciones gruesas. Esta transformaci\u00f3n desigual puede generar tensiones internas cerca de las esquinas afiladas y cambios bruscos de secci\u00f3n. Un buen dise\u00f1o de herramienta debe minimizar las esquinas internas afiladas y evitar variaciones de espesor innecesarias.<\/p>\n\n\n\n

Para secciones muy grandes, el enfriamiento por aire puede no enfriar el n\u00facleo lo suficientemente r\u00e1pido como para alcanzar la dureza requerida. Puede ser necesario un enfriamiento m\u00e1s intenso, pero un temple m\u00e1s fuerte tambi\u00e9n aumenta el riesgo de agrietamiento. Por lo tanto, las herramientas grandes de acero D2 requieren ajustes en el proceso en lugar de un \u00fanico programa de tratamiento t\u00e9rmico fijo.<\/p>\n\n\n\n

El tiempo de revenido tambi\u00e9n depende del tama\u00f1o de la secci\u00f3n. Como referencia habitual, se recomienda un m\u00ednimo de 2 horas por pulgada (25 mm) de espesor, con enfriamiento a temperatura ambiente entre cada ciclo de revenido.<\/p>\n\n\n\n

Problemas comunes del tratamiento t\u00e9rmico del D2<\/h2>\n\n\n\n

1. Sobrecalentamiento<\/h3>\n\n\n\n

El sobrecalentamiento se produce cuando el acero D2 se austeniza por encima del rango recomendado o se mantiene a temperatura constante durante demasiado tiempo. Esto puede provocar un engrosamiento del grano, una retenci\u00f3n excesiva de austenita, fragilidad, baja dureza y un mayor riesgo de agrietamiento.<\/p>\n\n\n\n

La soluci\u00f3n consiste en controlar la temperatura de austenizaci\u00f3n y el tiempo de remojo en funci\u00f3n del tama\u00f1o de la secci\u00f3n.<\/p>\n\n\n\n

2. Calentamiento insuficiente<\/h3>\n\n\n\n

El calentamiento insuficiente se produce cuando la temperatura de austenizaci\u00f3n es demasiado baja o el tiempo de mantenimiento es demasiado corto. Es posible que los carburos de la aleaci\u00f3n no se disuelvan por completo y que el acero no alcance la dureza esperada tras el temple.<\/p>\n\n\n\n

Esto suele manifestarse como baja dureza, escasa resistencia al desgaste y un rendimiento deficiente en servicio.<\/p>\n\n\n\n

3. Descarburaci\u00f3n superficial<\/h3>\n\n\n\n

Si el acero D2 se calienta sin protecci\u00f3n, la superficie puede perder carbono durante la austenizaci\u00f3n. Una superficie descarburizada puede permanecer blanda despu\u00e9s del endurecimiento, lo que reduce la resistencia al desgaste y aumenta el riesgo de deformaci\u00f3n.<\/p>\n\n\n\n

El tratamiento t\u00e9rmico al vac\u00edo, el tratamiento t\u00e9rmico en atm\u00f3sfera controlada, el ba\u00f1o de sales neutras o el recubrimiento con papel de aluminio inoxidable pueden reducir este problema.<\/p>\n\n\n\n

4. Templado retardado<\/h3>\n\n\n\n

El acero D2 debe templarse inmediatamente despu\u00e9s del enfriamiento, cuando alcanza una temperatura aproximada de 50\u201366 \u00b0C (120\u2013150 \u00b0F). El acero D2 reci\u00e9n templado contiene martensita sometida a altas tensiones y puede agrietarse si se retrasa el templado.<\/p>\n\n\n\n

Dejar el acero D2 endurecido sin templar durante la noche es arriesgado, especialmente para herramientas complejas y secciones gruesas.<\/p>\n\n\n\n

5. Temperatura de templado inadecuada<\/h3>\n\n\n\n

El acero D2 se puede templar a bajas temperaturas para obtener una alta dureza o a temperaturas m\u00e1s altas para una mayor estabilidad. La temperatura de templado debe coincidir con la aplicaci\u00f3n.<\/p>\n\n\n\n

Para muchas herramientas industriales, el doble templado a 900\u2013960 \u00b0F (480\u2013515 \u00b0C) es m\u00e1s fiable que un \u00fanico templado a baja temperatura.<\/p>\n\n\n\n

6. Agrietamiento por temple inducido por el dise\u00f1o<\/h3>\n\n\n\n

Algunas herramientas D2 se agrietan debido a su geometr\u00eda, m\u00e1s que a la calidad del acero. Las esquinas internas afiladas, las marcas profundas, los agujeros ciegos, las paredes delgadas adyacentes a secciones gruesas y los cambios bruscos en la secci\u00f3n transversal aumentan el riesgo de agrietamiento.<\/p>\n\n\n\n

Siempre que sea posible, se deben redondear las esquinas afiladas, reducir los cambios de secci\u00f3n y dise\u00f1ar herramientas complejas teniendo en cuenta el tratamiento t\u00e9rmico.<\/p>\n\n\n\n

7. Da\u00f1os por rectificado despu\u00e9s del tratamiento t\u00e9rmico<\/h3>\n\n\n\n

El acero D2 tiene una alta resistencia al desgaste, por lo que un rectificado agresivo puede generar calor localizado. Esto puede ablandar la superficie, provocar quemaduras por rectificado o crear grietas superficiales poco profundas.<\/p>\n\n\n\n

Tras el endurecimiento, el acero D2 debe rectificarse con pasadas ligeras, refrigerante adecuado y eliminaci\u00f3n controlada de material. Para herramientas cr\u00edticas, se puede considerar un tratamiento t\u00e9rmico de alivio de tensiones a baja temperatura tras un rectificado intenso.<\/p>\n\n\n\n

\"Barras<\/figure>\n\n\n\n

Aviso de soporte t\u00e9cnico
<\/strong>Suministros de acero Aobo Acero para herramientas D2 \/ 1.2379 \/ SKD11<\/strong> en estado recocido y no proporciona servicios de tratamiento t\u00e9rmico final como endurecimiento, temple, tratamiento criog\u00e9nico o revenido.<\/p>\n\n\n\n

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 nuestros clientes. Los resultados reales del tratamiento t\u00e9rmico pueden variar seg\u00fan la capacidad del horno, el tama\u00f1o de la secci\u00f3n, la geometr\u00eda de la herramienta, el estado del material, la pr\u00e1ctica de temple y el control del proceso. Los procedimientos finales de tratamiento t\u00e9rmico y su validaci\u00f3n deben ser realizados por las instalaciones de tratamiento t\u00e9rmico del cliente, de acuerdo con la aplicaci\u00f3n espec\u00edfica de la herramienta y los requisitos de producci\u00f3n.<\/p>\n\n\n\n

Para el suministro de material de acero para herramientas D2, consulte nuestra P\u00e1gina del producto de acero para herramientas D2<\/a> o contactar sales@aobosteel.com<\/a>.<\/p>\n\n\n\n

Preguntas frecuentes<\/h2>\n\n\n\n
\u00bfCu\u00e1l es el proceso normal de tratamiento t\u00e9rmico para el acero para herramientas D2?<\/strong>

El acero para herramientas D2 normalmente se somete a un tratamiento t\u00e9rmico mediante precalentamiento, austenizaci\u00f3n, temple y revenido. Un proceso t\u00edpico es el precalentamiento a 1200\u20131250 \u00b0F \/ 649\u2013677 \u00b0C<\/strong>, austeniz\u00e1ndose en 1795\u20131875 \u00b0F \/ 980\u20131025 \u00b0C<\/strong>, temple por aire, gas, aceite o ba\u00f1o de sal dependiendo del tama\u00f1o de la secci\u00f3n, y luego doble revenido a 900\u2013960 \u00b0F \/ 480\u2013515 \u00b0C<\/strong>. Se puede a\u00f1adir un tratamiento criog\u00e9nico cuando la estabilidad dimensional y el control de la austenita retenida sean factores cr\u00edticos.<\/p> <\/div>

\u00bfQu\u00e9 dureza puede alcanzar el acero para herramientas D2 despu\u00e9s del tratamiento t\u00e9rmico?<\/strong>

El acero para herramientas D2 puede alcanzar aproximadamente 64 HRC en estado templado<\/strong>. Despu\u00e9s del revenido, la dureza de trabajo final depende de la temperatura de revenido. Un revenido a baja temperatura alrededor de 400 \u00b0F \/ 205 \u00b0C<\/strong> puede producir aproximadamente 61 HRC<\/strong>, mientras que el doble templado a alta temperatura alrededor 900\u2013960 \u00b0F \/ 480\u2013515 \u00b0C<\/strong> com\u00fanmente da sobre 58\u201360 HRC<\/strong> con mejor estabilidad dimensional.<\/p> <\/div>

\u00bfEl acero para herramientas D2 debe templarse al aire o en aceite?<\/strong>

El acero D2 es un acero para herramientas de endurecimiento al aire, por lo que se suele preferir el enfriamiento controlado al aire o el temple en gas para reducir el riesgo de deformaci\u00f3n y agrietamiento. El temple en aceite puede utilizarse en secciones m\u00e1s grandes o en casos especiales, pero aumenta el choque t\u00e9rmico. El m\u00e9todo de temple debe seleccionarse en funci\u00f3n del tama\u00f1o de la secci\u00f3n, la geometr\u00eda de la herramienta y la dureza requerida.<\/p> <\/div>

\u00bfEs necesario el tratamiento criog\u00e9nico para el acero para herramientas D2?<\/strong>

El tratamiento criog\u00e9nico no siempre es necesario para el acero para herramientas D2. Se utiliza principalmente cuando la herramienta requiere mayor estabilidad dimensional, menor retenci\u00f3n de austenita y un comportamiento al desgaste m\u00e1s uniforme. Las matrices de precisi\u00f3n, los calibres, los punzones, las herramientas de corte y las herramientas sometidas a un alto desgaste pueden beneficiarse del tratamiento criog\u00e9nico. Las herramientas de uso general pueden funcionar bien con un doble revenido adecuado.<\/p> <\/div>

\u00bfCu\u00e1ndo se debe templar el acero para herramientas D2 despu\u00e9s del enfriamiento?<\/strong>

El acero D2 debe templarse inmediatamente despu\u00e9s del enfriamiento, cuando la pieza se enfr\u00eda aproximadamente\u00a0120\u2013150 \u00b0F (50\u201366 \u00b0C)<\/strong>. El acero D2 reci\u00e9n templado contiene martensita sometida a altas tensiones y puede agrietarse si se retrasa el revenido. Dejar el acero D2 endurecido sin revenir durante la noche es arriesgado, especialmente para herramientas complejas o secciones gruesas.<\/p> <\/div>

\u00bfPor qu\u00e9 se recomienda el doble templado para el acero para herramientas D2?<\/strong>

Se recomienda el doble revenido, ya que el acero D2 contiene un alto contenido de aleaci\u00f3n y puede retener austenita tras el temple. El primer revenido reduce las tensiones y comienza a estabilizar la estructura. El enfriamiento a temperatura ambiente permite una transformaci\u00f3n adicional, y el segundo revenido ayuda a estabilizar la martensita reci\u00e9n formada. Esto mejora la estabilidad dimensional y reduce el riesgo de agrietamiento.<\/p> <\/div>

\u00bfCu\u00e1l es la temperatura de revenido \u00f3ptima para el acero para herramientas D2?<\/strong>

No existe una \u00fanica temperatura de revenido \u00f3ptima para todas las herramientas D2. Si se requiere la m\u00e1xima dureza, el D2 puede ser revenido alrededor de 400 \u00b0F \/ 205 \u00b0C<\/strong>. Si la estabilidad dimensional, el control de la austenita retenida y la fiabilidad del servicio son m\u00e1s importantes, el doble revenido a alta temperatura en 900\u2013960 \u00b0F (480\u2013515 \u00b0C)<\/strong> A menudo se prefiere.<\/p> <\/div>

\u00bfPor qu\u00e9 se agrieta el acero para herramientas D2 durante el tratamiento t\u00e9rmico?<\/strong>

El acero D2 puede agrietarse durante el tratamiento t\u00e9rmico debido a una velocidad de calentamiento excesiva, un precalentamiento insuficiente, esquinas afiladas, un espesor de secci\u00f3n irregular, un enfriamiento brusco, un revenido tard\u00edo o un dise\u00f1o inadecuado de la pieza. El acero D2 tiene una alta dureza y un alto contenido de aleaci\u00f3n, por lo que las tensiones del tratamiento t\u00e9rmico deben controlarse cuidadosamente.<\/p> <\/div>

\u00bfPor qu\u00e9 el acero para herramientas D2 no alcanza la dureza esperada?<\/strong>

La baja dureza puede deberse a una temperatura de austenizaci\u00f3n insuficiente, un tiempo de remojo corto, un enfriamiento lento en secciones grandes, descarburaci\u00f3n superficial o un revenido inadecuado. Toda la secci\u00f3n transversal debe alcanzar la temperatura de austenizaci\u00f3n correcta, y el proceso de temple y revenido debe ajustarse al tama\u00f1o de la secci\u00f3n.<\/p> <\/div>

\u00bfInfluye el tama\u00f1o de la secci\u00f3n en el tratamiento t\u00e9rmico D2?<\/strong>

S\u00ed. El tama\u00f1o de la secci\u00f3n influye considerablemente en el calentamiento, el remojo, el temple y el revenido. Las secciones gruesas se calientan y enfr\u00edan m\u00e1s lentamente que las delgadas. Las piezas grandes de acero D2 pueden requerir un tiempo de ecualizaci\u00f3n m\u00e1s prolongado y una selecci\u00f3n cuidadosa del temple. Los cambios bruscos de secci\u00f3n, las esquinas afiladas y los agujeros ciegos tambi\u00e9n aumentan el riesgo de deformaci\u00f3n y agrietamiento.<\/p> <\/div>

\u00bfSe puede someter el acero para herramientas D2 a tratamiento t\u00e9rmico despu\u00e9s del mecanizado?<\/strong>

S\u00ed, el acero D2 se mecaniza com\u00fanmente en estado recocido y posteriormente se somete a tratamiento t\u00e9rmico. Sin embargo, un mecanizado intenso puede generar tensiones, por lo que se recomienda aliviar dichas tensiones antes del endurecimiento en piezas grandes o complejas. El rectificado final debe controlarse cuidadosamente despu\u00e9s del endurecimiento para evitar quemaduras o grietas superficiales.<\/p> <\/div>

\u00bfOfrece Aobo Steel el servicio de tratamiento t\u00e9rmico D2?<\/strong>

No. Suministros de Aobo Steel Acero para herramientas D2 \/ 1.2379 \/ SKD11<\/strong> En estado recocido, principalmente en forma de barras redondas y planas para pedidos industriales a granel. El endurecimiento final, el temple, el tratamiento criog\u00e9nico y el revenido deben ser realizados por la planta de tratamiento t\u00e9rmico local del cliente.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"

D2 Tool Steel Heat Treatment Guide D2 tool steel is usually heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching by air, gas, oil, or salt bath, depending on section size, and double tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces a hardness of about 58\u201360 […]<\/p>\n","protected":false},"author":1,"featured_media":15078,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"knowledge-article","_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-11776","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nD2 Heat Treatment Guide: Tempering Chart, Hardness & Process<\/title>\n<meta name=\"description\" content=\"See D2 heat treatment temperatures, quenching methods, tempering chart, cryogenic treatment, and final hardness range. 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is the normal heat treatment process for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 tool steel is normally heat-treated by preheating, austenitizing, quenching, and tempering. A typical process is preheating to <strong>1200\u20131250\u00b0F \\\/ 649\u2013677\u00b0C<\\\/strong>, austenitizing at <strong>1795\u20131875\u00b0F \\\/ 980\u20131025\u00b0C<\\\/strong>, quenching by air, gas, oil, or salt bath depending on section size, and then double tempering at <strong>900\u2013960\u00b0F \\\/ 480\u2013515\u00b0C<\\\/strong>. Cryogenic treatment may be added when dimensional stability and control of retained austenite are critical.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199717481\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199717481\",\"name\":\"What hardness can D2 tool steel reach after heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 tool steel can reach about <strong>64 HRC as quenched<\\\/strong>. After tempering, the final working hardness depends on the tempering temperature. A low-temperature temper around <strong>400\u00b0F \\\/ 205\u00b0C<\\\/strong> can produce about <strong>61 HRC<\\\/strong>, while high-temperature double tempering around <strong>900\u2013960\u00b0F \\\/ 480\u2013515\u00b0C<\\\/strong> commonly gives about <strong>58\u201360 HRC<\\\/strong> with better dimensional stability.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199718291\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199718291\",\"name\":\"Should D2 tool steel be air-quenched or oil-quenched?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 is an air-hardening tool steel, so controlled air cooling or gas quenching is often preferred to reduce the risk of distortion and cracking. Oil quenching may be used in some larger sections or special cases, but it increases thermal shock. The quenching method should be selected according to section size, tool geometry, and required hardness.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719081\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719081\",\"name\":\"Is cryogenic treatment necessary for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cryogenic treatment is not always necessary for D2 tool steel. It is mainly used when the tool requires better dimensional stability, lower retained austenite, and more consistent wear performance. Precision dies, gauges, punches, slitting tools, and high-wear tooling may benefit from cryogenic treatment. General tooling may perform well with proper double tempering alone.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719852\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719852\",\"name\":\"When should D2 tool steel be tempered after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 should be tempered immediately after quenching, when the part cools to approximately\u00a0<strong>120\u2013150\u00b0F (50\u201366 \u00b0C)<\\\/strong>. Freshly quenched D2 contains highly stressed martensite and can crack if tempering is delayed. Leaving hardened D2 untempered overnight is risky, especially for complex tools or heavy sections.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199763713\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199763713\",\"name\":\"Why is double tempering recommended for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Double tempering is recommended because D2 contains high alloy content and may retain austenite after quenching. The first temper reduces stress and begins stabilizing the structure. Cooling to room temperature allows additional transformation, and the second temper helps stabilize newly formed martensite. This improves dimensional stability and reduces the risk of cracking.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199764493\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199764493\",\"name\":\"What is the best tempering temperature for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"There is no single best tempering temperature for all D2 tools. If maximum hardness is required, D2 may be tempered around <strong>400\u00b0F \\\/ 205\u00b0C<\\\/strong>. If dimensional stability, retained austenite control, and service reliability are more important, high-temperature double tempering at <strong>900\u2013960\u00b0F (480\u2013515\u00b0C)<\\\/strong> is often preferred.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199765365\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199765365\",\"name\":\"Why does D2 tool steel crack during heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 may crack during heat treatment due to excessive heating rate, inadequate preheating, sharp corners, uneven section thickness, severe quenching, delayed tempering, or improper part design. D2 has high hardness and high alloy content, so heat-treatment stresses must be carefully controlled.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800038\",\"position\":9,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800038\",\"name\":\"Why does D2 tool steel fail to reach the expected hardness?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Low hardness may come from insufficient austenitizing temperature, short soaking time, slow cooling in large sections, surface decarburization, or improper tempering. The full cross-section must reach the correct austenitizing temperature, and the quenching and tempering process must be matched to the section size.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800773\",\"position\":10,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800773\",\"name\":\"Does section size affect D2 heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Section size strongly affects heating, soaking, quenching, and tempering. Thick sections heat and cool more slowly than thin sections. Large D2 parts may need longer equalizing time and careful quench selection. Sudden section changes, sharp corners, and blind holes also increase the risk of distortion and cracking.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818018\",\"position\":11,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818018\",\"name\":\"Can D2 tool steel be heat-treated after machining?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, D2 is commonly rough machined in an annealed condition and then heat-treated. However, heavy machining can introduce stress, so stress relief before hardening may be considered for large or complex parts. Final grinding should be controlled carefully after hardening to avoid grinding burns or surface cracks.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818756\",\"position\":12,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818756\",\"name\":\"Does Aobo Steel provide D2 heat treatment service?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Aobo Steel supplies <strong>D2 \\\/ 1.2379 \\\/ SKD11 tool steel<\\\/strong> in an annealed condition, mainly as round bar and flat bar for bulk industrial orders. 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A typical process is preheating to <strong>1200\u20131250\u00b0F \/ 649\u2013677\u00b0C<\/strong>, austenitizing at <strong>1795\u20131875\u00b0F \/ 980\u20131025\u00b0C<\/strong>, quenching by air, gas, oil, or salt bath depending on section size, and then double tempering at <strong>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/strong>. Cryogenic treatment may be added when dimensional stability and control of retained austenite are critical.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199717481","position":2,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199717481","name":"\u00bfQu\u00e9 dureza puede alcanzar el acero para herramientas D2 despu\u00e9s del tratamiento t\u00e9rmico?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 tool steel can reach about <strong>64 HRC as quenched<\/strong>. After tempering, the final working hardness depends on the tempering temperature. A low-temperature temper around <strong>400\u00b0F \/ 205\u00b0C<\/strong> can produce about <strong>61 HRC<\/strong>, while high-temperature double tempering around <strong>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/strong> commonly gives about <strong>58\u201360 HRC<\/strong> with better dimensional stability.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199718291","position":3,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199718291","name":"\u00bfEl acero para herramientas D2 debe templarse al aire o en aceite?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 is an air-hardening tool steel, so controlled air cooling or gas quenching is often preferred to reduce the risk of distortion and cracking. Oil quenching may be used in some larger sections or special cases, but it increases thermal shock. The quenching method should be selected according to section size, tool geometry, and required hardness.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719081","position":4,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719081","name":"\u00bfEs necesario el tratamiento criog\u00e9nico para el acero para herramientas D2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Cryogenic treatment is not always necessary for D2 tool steel. It is mainly used when the tool requires better dimensional stability, lower retained austenite, and more consistent wear performance. Precision dies, gauges, punches, slitting tools, and high-wear tooling may benefit from cryogenic treatment. General tooling may perform well with proper double tempering alone.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719852","position":5,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719852","name":"\u00bfCu\u00e1ndo se debe templar el acero para herramientas D2 despu\u00e9s del enfriamiento?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 should be tempered immediately after quenching, when the part cools to approximately\u00a0<strong>120\u2013150\u00b0F (50\u201366 \u00b0C)<\/strong>. Freshly quenched D2 contains highly stressed martensite and can crack if tempering is delayed. Leaving hardened D2 untempered overnight is risky, especially for complex tools or heavy sections.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199763713","position":6,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199763713","name":"\u00bfPor qu\u00e9 se recomienda el doble templado para el acero para herramientas D2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Double tempering is recommended because D2 contains high alloy content and may retain austenite after quenching. The first temper reduces stress and begins stabilizing the structure. Cooling to room temperature allows additional transformation, and the second temper helps stabilize newly formed martensite. This improves dimensional stability and reduces the risk of cracking.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199764493","position":7,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199764493","name":"\u00bfCu\u00e1l es la temperatura de revenido \u00f3ptima para el acero para herramientas D2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"There is no single best tempering temperature for all D2 tools. If maximum hardness is required, D2 may be tempered around <strong>400\u00b0F \/ 205\u00b0C<\/strong>. If dimensional stability, retained austenite control, and service reliability are more important, high-temperature double tempering at <strong>900\u2013960\u00b0F (480\u2013515\u00b0C)<\/strong> is often preferred.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199765365","position":8,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199765365","name":"\u00bfPor qu\u00e9 se agrieta el acero para herramientas D2 durante el tratamiento t\u00e9rmico?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 may crack during heat treatment due to excessive heating rate, inadequate preheating, sharp corners, uneven section thickness, severe quenching, delayed tempering, or improper part design. D2 has high hardness and high alloy content, so heat-treatment stresses must be carefully controlled.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800038","position":9,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800038","name":"\u00bfPor qu\u00e9 el acero para herramientas D2 no alcanza la dureza esperada?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Low hardness may come from insufficient austenitizing temperature, short soaking time, slow cooling in large sections, surface decarburization, or improper tempering. The full cross-section must reach the correct austenitizing temperature, and the quenching and tempering process must be matched to the section size.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800773","position":10,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800773","name":"\u00bfInfluye el tama\u00f1o de la secci\u00f3n en el tratamiento t\u00e9rmico D2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. Section size strongly affects heating, soaking, quenching, and tempering. Thick sections heat and cool more slowly than thin sections. Large D2 parts may need longer equalizing time and careful quench selection. Sudden section changes, sharp corners, and blind holes also increase the risk of distortion and cracking.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818018","position":11,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818018","name":"\u00bfSe puede someter el acero para herramientas D2 a tratamiento t\u00e9rmico despu\u00e9s del mecanizado?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, D2 is commonly rough machined in an annealed condition and then heat-treated. However, heavy machining can introduce stress, so stress relief before hardening may be considered for large or complex parts. Final grinding should be controlled carefully after hardening to avoid grinding burns or surface cracks.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818756","position":12,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818756","name":"\u00bfOfrece Aobo Steel el servicio de tratamiento t\u00e9rmico D2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. Aobo Steel supplies <strong>D2 \/ 1.2379 \/ SKD11 tool steel<\/strong> in an annealed condition, mainly as round bar and flat bar for bulk industrial orders. Final hardening, quenching, cryogenic treatment, and tempering should be performed by the customer\u2019s local heat-treatment facility.","inLanguage":"es"},"inLanguage":"es"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"D2 Tool Steel Heat Treatment Guide D2 tool steel is usually heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching by air, gas, oil, or salt bath, depending on section size, and double tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces a hardness of about 58\u201360…","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"D2 Tool Steel Heat Treatment Guide D2 tool steel is usually heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching by air, gas, oil, or salt bath, depending on section size, and double tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces a hardness of about 58\u201360…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/11776","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/comments?post=11776"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/11776\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media\/15078"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media?parent=11776"}],"curies":[{"name":"gracias","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}