{"id":11673,"date":"2025-12-23T12:52:18","date_gmt":"2025-12-23T04:52:18","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11673"},"modified":"2026-05-15T12:28:13","modified_gmt":"2026-05-15T04:28:13","slug":"s7-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/s7-tool-steel-heat-treatment\/","title":{"rendered":"Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas S7: temperatura, dureza y proceso."},"content":{"rendered":"
\"\"<\/figure>\n\n\n\n

Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas S7<\/h1>\n\n\n\n

El acero para herramientas S7 se somete t\u00edpicamente a un tratamiento t\u00e9rmico mediante un precalentamiento a 649-677 \u00b0C (1200-1250 \u00b0F), austenizaci\u00f3n a unos 940 \u00b0C (1725 \u00b0F), enfriamiento al aire para secciones de hasta 63,5 mm (2,5 pulgadas) y posterior revenido doble inmediato. Para la mayor\u00eda de las herramientas de trabajo en fr\u00edo, el S7 se suele revenir a 204-260 \u00b0C (400-500 \u00b0F), obteniendo una dureza de trabajo t\u00edpica de entre 56 y 58 HRC.<\/p>\n\n\n\n

Aobo Steel suministra acero para herramientas S7 en estado recocido para mecanizado, fabricaci\u00f3n de herramientas y posterior tratamiento t\u00e9rmico por parte del proveedor de tratamiento t\u00e9rmico del cliente. Para especificaciones, tama\u00f1os disponibles e informaci\u00f3n de suministro, consulte nuestra P\u00e1gina del producto Acero para herramientas S7<\/a>. Si necesita barras o placas redondas S7 para herramientas resistentes a los golpes, cont\u00e1ctenos en sales@aobosteel.com<\/a><\/p>\n\n\n\n

Gu\u00eda r\u00e1pida para el tratamiento t\u00e9rmico del acero para herramientas S7<\/h2>\n\n\n\n
Fase del proceso<\/strong><\/td>Temperatura<\/strong><\/td>Tiempo de remojo<\/strong><\/td>M\u00e9todo de refrigeraci\u00f3n<\/strong><\/td><\/tr>
Recocido<\/td>815\u2013870 \u00b0C<\/td>1\u20131,5 horas\/pulgada<\/td>Enfriar el horno a 482 \u00b0C, luego enfriar al aire.<\/td><\/tr>
Alivio del estr\u00e9s<\/td>649\u2013677 \u00b0C<\/td>1\u20132 horas\/pulgada<\/td>Se prefiere refrigeraci\u00f3n por horno<\/td><\/tr>
Precalentamiento<\/td>649\u2013704 \u00b0C<\/td>Hasta que sea uniforme<\/td>-<\/td><\/tr>
Austenitizaci\u00f3n<\/td>940\u2013982 \u00b0C<\/td>Controlado por el tama\u00f1o de la secci\u00f3n<\/td>Aire o aceite, seg\u00fan el tama\u00f1o de la secci\u00f3n.<\/td><\/tr>
Enfriamiento<\/td>-<\/td>-<\/td>Aire \u226463,5 mm; aceite o aceite de flasheo >63,5 mm<\/td><\/tr>
Templado<\/td>204\u2013538 \u00b0C<\/td>2 horas\/in, dos veces<\/td>Enfriamiento por aire entre ciclos<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

El tama\u00f1o de la secci\u00f3n influye notablemente en el m\u00e9todo de temple y la dureza final. Las secciones delgadas y medianas normalmente alcanzan la dureza m\u00e1xima mediante enfriamiento al aire, mientras que las secciones m\u00e1s gruesas pueden requerir un enfriamiento m\u00e1s r\u00e1pido para evitar una baja dureza en el n\u00facleo.<\/p>\n\n\n\n

Proceso de tratamiento t\u00e9rmico paso a paso del acero para herramientas S7<\/h2>\n\n\n\n

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

Proteja el acero para herramientas S7 de la descarburaci\u00f3n durante el calentamiento. Utilice un horno de atm\u00f3sfera controlada, un horno de vac\u00edo, un ba\u00f1o de sales neutras o una l\u00e1mina de acero inoxidable sellada.<\/p>\n\n\n\n

Calentar uniformemente a 649\u2013677 \u00b0C (1200\u20131250 \u00b0F) y mantener hasta que toda la secci\u00f3n transversal alcance dicha temperatura. Para secciones peque\u00f1as, suele ser suficiente con mantener la temperatura durante 10\u201315 minutos despu\u00e9s de que se estabilice.<\/p>\n\n\n\n

El precalentamiento reduce el choque t\u00e9rmico, mejora la uniformidad de la temperatura y disminuye el riesgo de agrietamiento durante el aumento final hasta la temperatura de austenizaci\u00f3n.<\/p>\n\n\n\n

2. Austenitizaci\u00f3n<\/h3>\n\n\n\n

Eleve la temperatura a unos 940 \u00b0C (1725 \u00b0F). El cronometraje debe comenzar solo despu\u00e9s de que la pieza haya alcanzado la temperatura deseada.<\/p>\n\n\n\n

El tiempo de remojo debe controlarse cuidadosamente. Una temperatura o un remojo excesivos pueden provocar el engrosamiento del grano, retenci\u00f3n de austenita, menor tenacidad e inestabilidad dimensional.<\/p>\n\n\n\n

Espesor de la secci\u00f3n<\/strong><\/td>Tiempo de remojo recomendado<\/strong><\/td><\/tr>
1\/8 pulg. \/ 3,2 mm<\/td>30 minutos<\/td><\/tr>
1\/4 pulg. \/ 6,4 mm<\/td>40 minutos<\/td><\/tr>
1\/2 pulgada \/ 12,7 mm<\/td>45\u201350 min<\/td><\/tr>
3\/4 pulg. \/ 19 mm<\/td>50\u201355 minutos<\/td><\/tr>
\u22651 pulgada \/ 25 mm<\/td>Aproximadamente 1 hora\/in<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

3. Enfriamiento<\/h3>\n\n\n\n

Para secciones de hasta 63,5 mm (2,5 pulgadas), utilice refrigeraci\u00f3n por aire est\u00e1tico. Enfr\u00ede la pieza a unos 65 \u00b0C (150 \u00b0F) antes del templado.<\/p>\n\n\n\n

Para secciones de m\u00e1s de 6,35 cm (2,5 pulgadas), utilice un m\u00e9todo de enfriamiento m\u00e1s r\u00e1pido. Se suele emplear un enfriamiento r\u00e1pido en aceite: sumerja la pieza y ag\u00edtela hasta que desaparezca el rojo vivo visible; luego, ret\u00edrela y d\u00e9jela enfriar al aire hasta aproximadamente 65 \u00b0C (150 \u00b0F).<\/p>\n\n\n\n

El enfriamiento al aire proporciona un mejor control dimensional, mientras que el enfriamiento con aceite ayuda a que las secciones m\u00e1s grandes alcancen una dureza suficiente en toda la secci\u00f3n transversal.<\/p>\n\n\n\n

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

Comience el proceso de templado inmediatamente cuando la pieza se enfr\u00ede a unos 65 \u00b0C (150 \u00b0F).<\/p>\n\n\n\n

El acero S7 requiere un doble revenido. Cada ciclo de revenido debe mantenerse durante 2 horas por cada pulgada de espesor de la secci\u00f3n, seguido de un enfriamiento completo al aire hasta alcanzar la temperatura ambiente antes del segundo ciclo.<\/p>\n\n\n\n

Para la mayor\u00eda de las herramientas de trabajo en fr\u00edo, se recomienda un tratamiento t\u00e9rmico a 204-260 \u00b0C (400-500 \u00b0F). Esto suele producir una dureza de trabajo de entre 56 y 58 HRC.<\/p>\n\n\n\n

Para aplicaciones que impliquen trabajo en caliente o a temperaturas elevadas, templar a 900\u20131000 \u00b0F (482\u2013538 \u00b0C) para mejorar la estabilidad t\u00e9rmica.<\/p>\n\n\n\n

El revenido a baja temperatura, por debajo de 400 \u00b0F, puede aumentar la dureza, pero tambi\u00e9n incrementa el riesgo de fragilidad y no se recomienda para aplicaciones industriales est\u00e1ndar, a menos que la m\u00e1xima dureza sea la prioridad principal y cualquier p\u00e9rdida de tenacidad sea aceptable.<\/p>\n\n\n\n

Recocido y alivio de tensiones del acero para herramientas S7<\/h2>\n\n\n\n

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

El acero para herramientas S7 se suministra normalmente recocido. El recocido posterior suele ser necesario \u00fanicamente para restaurar la maquinabilidad tras el endurecimiento o para reacondicionar herramientas.<\/p>\n\n\n\n

El recocido debe realizarse en atm\u00f3sfera controlada, horno de vac\u00edo o ambiente de sal neutra para evitar la descarburaci\u00f3n.<\/p>\n\n\n\n

Pr\u00e1ctica de recocido recomendada:<\/p>\n\n\n\n

Art\u00edculo<\/strong><\/td>Recomendaci\u00f3n<\/strong><\/td><\/tr>
Temperatura<\/td>815\u2013870 \u00b0C, normalmente alrededor de 843 \u00b0C<\/td><\/tr>
Tiempo de remojo<\/td>Aproximadamente 1,5 horas\/pulgada<\/td><\/tr>
Refrigeraci\u00f3n<\/td>Enfriar en horno a \u226414 \u00b0C\/h hasta 482 \u00b0C, luego enfriar al aire.<\/td><\/tr>
dureza final<\/td>Normalmente no supera los 230 HB.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Un recocido adecuado mejora la maquinabilidad y prepara el acero para el posterior endurecimiento.<\/p>\n\n\n\n

2. Alivio del estr\u00e9s<\/h3>\n\n\n\n

Se recomienda el alivio de tensiones despu\u00e9s de un mecanizado en bruto intenso, electroerosi\u00f3n, soldadura o al trabajar con geometr\u00edas complejas y secciones irregulares.<\/p>\n\n\n\n

No es obligatorio para todas las piezas, pero cobra importancia cuando las tensiones residuales pueden provocar deformaciones o grietas durante el endurecimiento.<\/p>\n\n\n\n

Pr\u00e1ctica recomendada para aliviar el estr\u00e9s:<\/p>\n\n\n\n

Art\u00edculo<\/strong><\/td>Recomendaci\u00f3n<\/strong><\/td><\/tr>
Temperatura<\/td>649\u2013677 \u00b0C<\/td><\/tr>
Tiempo de remojo<\/td>1\u20132 horas\/pulgada<\/td><\/tr>
Refrigeraci\u00f3n<\/td>Se prefiere la refrigeraci\u00f3n por horno.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Es importante un enfriamiento uniforme. Un enfriamiento desigual puede generar nuevas tensiones t\u00e9rmicas y reducir el beneficio del alivio de tensiones.<\/p>\n\n\n\n

Dureza del acero para herramientas S7 despu\u00e9s del tratamiento t\u00e9rmico<\/h2>\n\n\n\n

La dureza final del acero para herramientas S7 depende principalmente de la temperatura de austenizaci\u00f3n, el m\u00e9todo de temple, el tama\u00f1o de la secci\u00f3n y la temperatura de revenido. Dado que el S7 se selecciona por su resistencia al impacto, el tratamiento t\u00e9rmico no debe centrarse \u00fanicamente en alcanzar la m\u00e1xima dureza. El objetivo pr\u00e1ctico es lograr un equilibrio estable entre la dureza Rockwell, la tenacidad y la resistencia al agrietamiento.<\/p>\n\n\n\n

Tras un endurecimiento adecuado, el acero S7 puede alcanzar una dureza de entre 58 y 64 HRC en estado templado. Sin embargo, este acero es demasiado fr\u00e1gil para su uso en herramientas convencionales y debe ser revenido inmediatamente despu\u00e9s del temple. Para la mayor\u00eda de las herramientas de trabajo en fr\u00edo, la dureza de trabajo habitual es de entre 56 y 58 HRC tras el revenido.<\/p>\n\n\n\n

Temperatura de revenido<\/th>Dureza aproximada<\/th>Significado pr\u00e1ctico<\/th><\/tr><\/thead>
Tal como se templ\u00f3, antes del revenido.<\/td>58\u201364 HRC<\/td>M\u00e1xima dureza, pero demasiado fr\u00e1gil para su uso. Templar inmediatamente despu\u00e9s del enfriamiento.<\/td><\/tr>
400\u2013500 \u00b0F \/ 204\u2013260 \u00b0C<\/td>56-58 HRC<\/td>Rango com\u00fan de trabajo en fr\u00edo para punzones, matrices, cuchillas de corte y herramientas sometidas a cargas de impacto.<\/td><\/tr>
Alrededor de 450 \u00b0F \/ 230 \u00b0C<\/td>Aproximadamente 58 HRC<\/td>Gama pr\u00e1ctica de uso general cuando se requiere resistencia al desgaste y tenacidad al impacto.<\/td><\/tr>
500\u2013900 \u00b0F \/ 260\u2013482 \u00b0C<\/td>Aproximadamente 54\u201356 HRC<\/td>Rango de dureza estable con mayor tenacidad que a temperaturas de revenido m\u00e1s bajas.<\/td><\/tr>
900\u20131000 \u00b0F \/ 482\u2013538 \u00b0C<\/td>Aproximadamente 48\u201352 HRC<\/td>Se utiliza para trabajos en caliente o aplicaciones a altas temperaturas donde la estabilidad t\u00e9rmica es m\u00e1s importante que la dureza m\u00e1xima.<\/td><\/tr>
1050\u20131150 \u00b0F \/ 565\u2013620 \u00b0C<\/td>Aproximadamente 45 HRC<\/td>Alto rango de revenido con ablandamiento significativo. Utilizar \u00fanicamente cuando se acepta una dureza menor.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Para aplicaciones de trabajo en fr\u00edo, el acero S7 se suele templar a 400\u2013500 \u00b0F para alcanzar una dureza de aproximadamente 56\u201358 HRC. Este rango es adecuado cuando la herramienta debe resistir simult\u00e1neamente impactos, astillamiento y desgaste moderado.<\/p>\n\n\n\n

Para trabajos en caliente o a temperaturas elevadas, el acero S7 se suele templar a 900\u20131000 \u00b0F. Su dureza es menor, pero este acero es m\u00e1s adecuado para aplicaciones donde la estabilidad t\u00e9rmica y la resistencia al ablandamiento son m\u00e1s importantes que la dureza Rockwell m\u00e1xima.<\/p>\n\n\n\n

Generalmente, no se recomienda el revenido por debajo de 204 \u00b0C (400 \u00b0F) para herramientas industriales est\u00e1ndar. Si bien puede mantener una mayor dureza, tambi\u00e9n aumenta el riesgo de fragilidad y agrietamiento. Las herramientas S7 deben someterse a un doble revenido, con enfriamiento completo a temperatura ambiente entre cada ciclo, para reducir las tensiones internas y lograr una dureza final m\u00e1s fiable.<\/p>\n\n\n\n

La dureza adecuada siempre debe seleccionarse seg\u00fan el modo de fallo de la herramienta. Si el desgaste es el problema principal, puede ser apropiado un rango de revenido inferior. Si el problema principal son las grietas, el astillamiento o el fallo por impacto, una dureza ligeramente inferior con mayor tenacidad suele ser m\u00e1s segura que buscar la m\u00e1xima dureza.<\/p>\n\n\n\n

Tratamiento t\u00e9rmico del acero para herramientas S7 seg\u00fan la aplicaci\u00f3n.<\/h2>\n\n\n\n

El tratamiento t\u00e9rmico S7 debe ajustarse seg\u00fan las condiciones de trabajo de la herramienta. La variable principal suele ser la temperatura de revenido.<\/p>\n\n\n\n

Aplicaci\u00f3n<\/strong><\/td>Rango de templado<\/strong><\/td>Dureza t\u00edpica<\/strong><\/td>Prioridad principal<\/strong><\/td><\/tr>
Herramientas para trabajo en fr\u00edo, matrices, punzones, cuchillas de corte<\/td>400\u2013500 \u00b0F \/ 204\u2013260 \u00b0C<\/td>56-58 HRC<\/td>Equilibrio entre desgaste y resistencia<\/td><\/tr>
Herramientas para trabajo en fr\u00edo con enfoque en la m\u00e1xima dureza.<\/td>345\u2013400 \u00b0F \/ 175\u2013204 \u00b0C<\/td>Mayor dureza<\/td>M\u00e1xima resistencia al desgaste, menor tenacidad.<\/td><\/tr>
Herramientas para trabajos en caliente o moldeo de pl\u00e1stico<\/td>900\u20131000 \u00b0F \/ 482\u2013538 \u00b0C<\/td>48\u201352 HRC<\/td>Estabilidad t\u00e9rmica<\/td><\/tr>
Herramientas dominadas por el choque<\/td>700\u2013750 \u00b0F \/ 370\u2013400 \u00b0C<\/td>Dureza moderada<\/td>Resistencia a la fractura<\/td><\/tr>
Equilibrio entre fuerza y resistencia<\/td>Alrededor de 575 \u00b0F \/ 300 \u00b0C<\/td>Dureza controlada<\/td>Resistencia a la fluencia y equilibrio de impacto<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Para aplicaciones est\u00e1ndar de trabajo en fr\u00edo, se suele utilizar una temperatura de 450 \u00b0F (aproximadamente 230 \u00b0C) para lograr una dureza estable y una buena resistencia al impacto.<\/p>\n\n\n\n

Para aplicaciones a temperaturas elevadas, la temperatura de atemperado debe ser normalmente entre 25 y 50 \u00b0F superior a la temperatura de servicio prevista. Esto ayuda a prevenir el ablandamiento durante su uso.<\/p>\n\n\n\n

Para herramientas sometidas principalmente a impactos, las temperaturas de revenido m\u00e1s elevadas suelen ser m\u00e1s adecuadas, ya que la tenacidad y la resistencia a la fractura son m\u00e1s importantes que la dureza m\u00e1xima.<\/p>\n\n\n\n

Selecci\u00f3n del m\u00e9todo de temple para acero para herramientas S7<\/h2>\n\n\n\n

El m\u00e9todo de enfriamiento correcto depende principalmente del tama\u00f1o de la secci\u00f3n, la geometr\u00eda y la sensibilidad a la distorsi\u00f3n.<\/p>\n\n\n\n

Condici\u00f3n<\/strong><\/td>M\u00e9todo<\/strong><\/td>Proceso clave<\/strong><\/td>Nota cr\u00edtica<\/strong><\/td><\/tr>
Secciones \u226463,5 mm<\/td>enfriamiento por aire<\/td>Enfriar en aire en calma despu\u00e9s de la austenizaci\u00f3n.<\/td>\u00d3ptima estabilidad dimensional<\/td><\/tr>
Secciones >63,5 mm<\/td>Refrigeraci\u00f3n a base de aceite<\/td>Utilice un enfriamiento m\u00e1s r\u00e1pido para mejorar la dureza del n\u00facleo.<\/td>La refrigeraci\u00f3n por aire puede ser insuficiente<\/td><\/tr>
Secciones pesadas que requieren control de tensi\u00f3n<\/td>enfriamiento r\u00e1pido con aceite<\/td>Enfriar en aceite hasta que desaparezca el rojo vivo, luego dejar enfriar al aire.<\/td>No utilice papel de aluminio de acero inoxidable.<\/td><\/tr>
Partes complejas o sensibles a la distorsi\u00f3n<\/td>Martmpering<\/td>Ba\u00f1o de sales a 595\u2013650 \u00b0C, igualar la temperatura y luego enfriar al aire.<\/td>Reduce los gradientes t\u00e9rmicos<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Para muchas herramientas S7, se prefiere el enfriamiento al aire porque reduce el riesgo de deformaci\u00f3n. Sin embargo, para secciones grandes, el enfriamiento al aire por s\u00ed solo puede no proporcionar la velocidad de enfriamiento suficiente para lograr la dureza completa.<\/p>\n\n\n\n

Problemas comunes en el tratamiento t\u00e9rmico del acero para herramientas S7<\/h2>\n\n\n\n

La mayor\u00eda de los fallos en el tratamiento t\u00e9rmico S7 est\u00e1n relacionados con el control de la atm\u00f3sfera, el tama\u00f1o de la secci\u00f3n, las tensiones residuales, la temperatura excesiva o el revenido tard\u00edo.<\/p>\n\n\n\n

Problema<\/strong><\/td>Causa principal<\/strong><\/td>Acci\u00f3n correctiva<\/strong><\/td><\/tr>
Descarburaci\u00f3n<\/td>P\u00e9rdida de carbono superficial en una atm\u00f3sfera oxidante<\/td>Utilice vac\u00edo, atm\u00f3sfera controlada, sal neutra o papel de aluminio sellado.<\/td><\/tr>
Distorsi\u00f3n o agrietamiento t\u00e9rmico<\/td>Gradientes t\u00e9rmicos, geometr\u00eda pronunciada o tensi\u00f3n de mecanizado<\/td>Precalentar adecuadamente, aliviar las tensiones antes del endurecimiento, evitar esquinas afiladas.<\/td><\/tr>
Baja dureza en secciones grandes<\/td>La velocidad de enfriamiento es demasiado lenta en esa secci\u00f3n.<\/td>Para las secciones m\u00e1s gruesas, utilice refrigeraci\u00f3n con aceite o temple r\u00e1pido en aceite.<\/td><\/tr>
Sobrecalentamiento o austenita retenida<\/td>Temperatura de austenizaci\u00f3n o tiempo de remojo excesivos<\/td>Controlar estrictamente la temperatura y el tiempo de remojo.<\/td><\/tr>
Agrietamiento tras el enfriamiento<\/td>Templado retardado o tensi\u00f3n interna excesiva<\/td>Templar inmediatamente y aplicar doble templado.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

La descarburaci\u00f3n crea una capa superficial blanda que no puede endurecerse por completo, reduciendo as\u00ed la resistencia al desgaste. El sobrecalentamiento aumenta el riesgo de retenci\u00f3n de austenita, crecimiento del grano, inestabilidad dimensional y menor tenacidad. El revenido retardado es especialmente peligroso debido a que la estructura templada contiene altas tensiones internas.<\/p>\n\n\n\n

Notas finales sobre el tratamiento t\u00e9rmico del acero para herramientas S7<\/h2>\n\n\n\n

El acero para herramientas S7 ofrece un excelente equilibrio entre resistencia al impacto, dureza y estabilidad dimensional cuando se somete a un tratamiento t\u00e9rmico adecuado. Para la mayor\u00eda de las aplicaciones, el proceso m\u00e1s seguro consiste en un precalentamiento controlado, una austenizaci\u00f3n precisa, un temple adecuado seg\u00fan el tama\u00f1o de la secci\u00f3n y un doble revenido inmediato.<\/p>\n\n\n\n

La regla m\u00e1s importante es no buscar ciegamente la m\u00e1xima dureza. El acero S7 se selecciona principalmente por su resistencia al impacto. Una dureza ligeramente menor con mejor tenacidad suele proporcionar una mayor vida \u00fatil de la herramienta que una dureza excesiva con poca resistencia a la fractura.<\/p>\n\n\n\n

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

Nota: No ofrecemos servicios de tratamiento t\u00e9rmico S7. Aobo Steel suministra acero para herramientas S7 en estado recocido, y esta gu\u00eda se proporciona como referencia t\u00e9cnica para ayudar a nuestros clientes en sus decisiones de procesamiento y aplicaci\u00f3n. Si necesita acero para herramientas S7, puede visitar nuestra p\u00e1gina web \ud83d\udc49 P\u00e1gina del producto de acero para herramientas S7<\/a> o cont\u00e1ctanos directamente \ud83d\udc49 sales@aobosteel.com<\/a>.<\/p>\n\n\n\n

Preguntas frecuentes<\/h2>\n\n\n\n
\u00bfCu\u00e1l es la dureza recomendada para el acero para herramientas S7?<\/strong>

Para la mayor\u00eda de las aplicaciones industriales, el acero para herramientas S7 se utiliza normalmente con una dureza de 56 a 58 HRC.
Menor dureza (48\u201352 HRC): mayor tenacidad, utilizada para trabajos en caliente o herramientas de alto impacto.
Mayor dureza (superior a 58 HRC): mayor resistencia al desgaste pero mayor fragilidad.
La dureza correcta depende de si la falla se debe al desgaste o al impacto.<\/p> <\/div>

\u00bfEl acero para herramientas S7 requiere temple en aceite?<\/strong>

No siempre.
El acero S7 es un acero de endurecimiento al aire, y el temple al aire es suficiente para secciones de hasta aproximadamente 63,5 mm (2,5 pulgadas).
Sin embargo:
Para secciones m\u00e1s gruesas, el enfriamiento por aire puede no lograr la dureza completa.
Se requiere temple en aceite o temple r\u00e1pido en aceite para asegurar un endurecimiento adecuado.
El m\u00e9todo de enfriamiento debe seleccionarse siempre en funci\u00f3n del tama\u00f1o de la secci\u00f3n.<\/p> <\/div>

\u00bfPor qu\u00e9 el S7 requiere un doble templado?<\/strong>

Se requiere un doble templado para:
Reducir la tensi\u00f3n interna despu\u00e9s del enfriamiento
Estabilizar la estructura martens\u00edtica
Mejora la tenacidad y reduce el riesgo de agrietamiento.
El templado simple no es suficiente para S7 y puede provocar un rendimiento inestable en servicio.<\/p> <\/div>

\u00bfSe puede templar el S7 por debajo de 400 \u00b0F?<\/strong>

S\u00ed, pero generalmente no se recomienda para uso industrial est\u00e1ndar.
El revenido a 345\u2013400\u00b0F puede aumentar la dureza.
Sin embargo, reduce significativamente la tenacidad y aumenta el riesgo de agrietamiento.
Este tratamiento t\u00e9rmico a baja temperatura solo debe utilizarse cuando se requiera la m\u00e1xima resistencia al desgaste y la carga de impacto sea m\u00ednima.<\/p> <\/div>

\u00bfQu\u00e9 ocurre si el S7 no se templa inmediatamente despu\u00e9s del enfriamiento?<\/strong>

El revenido puede provocar:
Alta tensi\u00f3n residual
Mayor riesgo de agrietamiento
Dureza reducida
El acero S7 debe templarse tan pronto como se enfr\u00ede a unos 65 \u00b0C (150 \u00b0F) despu\u00e9s del enfriamiento brusco.<\/p> <\/div>

\u00bfCu\u00e1l es la temperatura de revenido \u00f3ptima para el acero para herramientas S7?<\/strong>

El rango m\u00e1s utilizado es: 400\u2013500 \u00b0F (204\u2013260 \u00b0C) para aplicaciones de trabajo en fr\u00edo.
Pr\u00e1ctica habitual: Alrededor de 230 \u00b0C (450 \u00b0F) se consigue un equilibrio estable entre dureza y tenacidad.
Para aplicaciones de trabajo en caliente: utilice entre 900 y 1000 \u00b0F (482 y 538 \u00b0C).<\/p> <\/div>

\u00bfPor qu\u00e9 el acero S7 pierde dureza a altas temperaturas de revenido?<\/strong>

A temperaturas de templado m\u00e1s elevadas (superiores a ~1000 \u00b0F \/ 538 \u00b0C):
El engrosamiento del carburo aumenta
La estructura de la martensita se ablanda.
La dureza disminuye m\u00e1s r\u00e1pidamente
Por eso, el revenido a alta temperatura se utiliza \u00fanicamente cuando la tenacidad y la estabilidad t\u00e9rmica son m\u00e1s importantes que la dureza.<\/p> <\/div>

\u00bfC\u00f3mo se previene la descarburaci\u00f3n durante el tratamiento t\u00e9rmico S7?<\/strong>

La descarburaci\u00f3n se produce cuando la superficie pierde carbono durante el calentamiento. Para evitarla:
Utilice un horno de vac\u00edo o una atm\u00f3sfera controlada.
Utilice un ba\u00f1o de sal neutra.
Envuelva las piezas en papel de aluminio de acero inoxidable.
Si se produce descarburaci\u00f3n, la superficie afectada debe eliminarse mediante mecanizado o rectificado.<\/p> <\/div>

\u00bfPor qu\u00e9 la muestra S7 presenta baja dureza en secciones grandes?<\/strong>

Esto suele deberse a una velocidad de enfriamiento insuficiente.
La refrigeraci\u00f3n por aire puede ser demasiado lenta para secciones gruesas.
El n\u00facleo no se transforma completamente en martensita.
Soluci\u00f3n: Utilice temple en aceite o temple r\u00e1pido en aceite para secciones superiores a 63,5 mm.<\/p> <\/div>

\u00bfEs el S7 adecuado para aplicaciones de alta temperatura?<\/strong>

El acero S7 se puede utilizar a temperaturas moderadamente elevadas, pero no es un acero espec\u00edfico para trabajo en caliente.
Para exposici\u00f3n al calor ocasional o moderada: aceptable
Para un uso continuo a altas temperaturas: es mejor utilizar aceros de la serie H.
La temperatura de templado siempre debe ser superior a la temperatura de servicio para evitar que el producto se ablande durante su uso.<\/p> <\/div>

\u00bfCu\u00e1l es el mayor error en el tratamiento t\u00e9rmico S7?<\/strong>

Los errores m\u00e1s comunes son:
No templar inmediatamente despu\u00e9s del enfriamiento.
Utilizar el enfriamiento por aire para secciones demasiado gruesas.
Sobrecalentamiento durante la austenizaci\u00f3n
Ignorar el alivio del estr\u00e9s antes del endurecimiento
Entre estos, el revenido tard\u00edo y los m\u00e9todos de temple incorrectos son los que provocan la mayor\u00eda de los fallos.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"

S7 Tool Steel Heat Treatment Guide S7 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F (649\u2013677\u00b0C), austenitizing at about 1725\u00b0F (940\u00b0C), air quenching for sections up to about 2.5 in. (63.5 mm), and applying immediate double tempering. For most cold-work tooling, S7 is commonly tempered at 400\u2013500\u00b0F (204\u2013260\u00b0C), producing a typical working hardness of […]<\/p>\n","protected":false},"author":1,"featured_media":15089,"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 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Treatment Guide: Temperature, Hardness & Process<\/title>\n<meta name=\"description\" content=\"Aobo Steel explains S7 heat treatment with a clear hardness range, tempering chart, quenching method, soak time, and practical process notes for tool steel applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/es\/s7-tool-steel-heat-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness & Process\" \/>\n<meta property=\"og:description\" content=\"Aobo Steel explains S7 heat treatment with a clear hardness range, tempering chart, quenching method, soak time, and practical process notes for tool steel applications.\" \/>\n<meta property=\"og:url\" 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is the recommended hardness for S7 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For most industrial applications, S7 tool steel is typically used at 56\u201358 HRC.<br>Lower hardness (48\u201352 HRC): better toughness, used for hot-work or impact-heavy tools<br>Higher hardness (above 58 HRC): improved wear resistance but increased brittleness<br>The correct hardness depends on whether failure is caused by wear or impact.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338878733\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338878733\",\"name\":\"Does S7 tool steel require oil quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not always.<br>S7 is an air-hardening steel, and air quenching is sufficient for sections up to about 63.5 mm (2.5 inches).<br>However:<br>For thicker sections, air cooling may not achieve full hardness<br>Oil quenching or flash oil quenching is required to ensure proper hardening<br>The quenching method should always be selected based on section size.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338879534\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338879534\",\"name\":\"Why does S7 require double tempering?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Double tempering is required to:<br>Reduce internal stress after quenching<br>Stabilize the martensitic structure<br>Improve toughness and reduce cracking risk<br>Single tempering is not sufficient for S7 and may lead to unstable performance in service.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880237\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880237\",\"name\":\"Can S7 be tempered below 400\u00b0F?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, but it is generally not recommended for standard industrial use.<br>Tempering at 345\u2013400\u00b0F can increase hardness<br>However, it significantly reduces toughness and increases cracking risk<br>This low-temperature tempering should be used only when maximum wear resistance is required, and impact loading is minimal.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880956\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880956\",\"name\":\"What happens if S7 is not tempered immediately after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Delayed tempering can lead to:<br>High residual stress<br>Increased risk of cracking<br>Reduced toughness<br>S7 should be tempered as soon as it cools to about 65\u00b0C (150\u00b0F) after quenching.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338918053\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338918053\",\"name\":\"What is the best tempering temperature for S7 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The most commonly used range is: 400\u2013500\u00b0F (204\u2013260\u00b0C) for cold-work applications<br>Typical practice: Around 450\u00b0F (230\u00b0C) gives a stable balance of hardness and toughness<br>For hot-work applications: Use 900\u20131000\u00b0F (482\u2013538\u00b0C)\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981206\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981206\",\"name\":\"Why does S7 lose hardness at high tempering temperatures?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"At higher tempering temperatures (above ~1000\u00b0F \\\/ 538\u00b0C):<br>Carbide coarsening increases<br>Martensite structure softens<br>Hardness drops more rapidly<br>This is why high-temperature tempering is used only when toughness and thermal stability are more important than hardness.\",\"inLanguage\":\"es\"},\"inLanguage\":\"es\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981928\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981928\",\"name\":\"How do you prevent decarburization during S7 heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Decarburization occurs when the surface loses carbon during heating. 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es la dureza recomendada para el acero para herramientas S7?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For most industrial applications, S7 tool steel is typically used at 56\u201358 HRC.<br>Lower hardness (48\u201352 HRC): better toughness, used for hot-work or impact-heavy tools<br>Higher hardness (above 58 HRC): improved wear resistance but increased brittleness<br>The correct hardness depends on whether failure is caused by wear or impact.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338878733","position":2,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338878733","name":"\u00bfEl acero para herramientas S7 requiere temple en aceite?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Not always.<br>S7 is an air-hardening steel, and air quenching is sufficient for sections up to about 63.5 mm (2.5 inches).<br>However:<br>For thicker sections, air cooling may not achieve full hardness<br>Oil quenching or flash oil quenching is required to ensure proper hardening<br>The quenching method should always be selected based on section size.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338879534","position":3,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338879534","name":"\u00bfPor qu\u00e9 el S7 requiere un doble templado?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Double tempering is required to:<br>Reduce internal stress after quenching<br>Stabilize the martensitic structure<br>Improve toughness and reduce cracking risk<br>Single tempering is not sufficient for S7 and may lead to unstable performance in service.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880237","position":4,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880237","name":"\u00bfSe puede templar el S7 por debajo de 400 \u00b0F?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, but it is generally not recommended for standard industrial use.<br>Tempering at 345\u2013400\u00b0F can increase hardness<br>However, it significantly reduces toughness and increases cracking risk<br>This low-temperature tempering should be used only when maximum wear resistance is required, and impact loading is minimal.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880956","position":5,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880956","name":"\u00bfQu\u00e9 ocurre si el S7 no se templa inmediatamente despu\u00e9s del enfriamiento?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Delayed tempering can lead to:<br>High residual stress<br>Increased risk of cracking<br>Reduced toughness<br>S7 should be tempered as soon as it cools to about 65\u00b0C (150\u00b0F) after quenching.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338918053","position":6,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338918053","name":"\u00bfCu\u00e1l es la temperatura de revenido \u00f3ptima para el acero para herramientas S7?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The most commonly used range is: 400\u2013500\u00b0F (204\u2013260\u00b0C) for cold-work applications<br>Typical practice: Around 450\u00b0F (230\u00b0C) gives a stable balance of hardness and toughness<br>For hot-work applications: Use 900\u20131000\u00b0F (482\u2013538\u00b0C)","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981206","position":7,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981206","name":"\u00bfPor qu\u00e9 el acero S7 pierde dureza a altas temperaturas de revenido?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"At higher tempering temperatures (above ~1000\u00b0F \/ 538\u00b0C):<br>Carbide coarsening increases<br>Martensite structure softens<br>Hardness drops more rapidly<br>This is why high-temperature tempering is used only when toughness and thermal stability are more important than hardness.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981928","position":8,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981928","name":"\u00bfC\u00f3mo se previene la descarburaci\u00f3n durante el tratamiento t\u00e9rmico S7?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Decarburization occurs when the surface loses carbon during heating. To prevent it:<br>Use a vacuum furnace or a controlled atmosphere<br>Use a neutral salt bath<br>Wrap parts in stainless steel foil<br>If decarburization occurs, the affected surface must be removed by machining or grinding.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338982702","position":9,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338982702","name":"\u00bfPor qu\u00e9 la muestra S7 presenta baja dureza en secciones grandes?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"This is usually caused by an insufficient cooling rate.<br>Air cooling may be too slow for thick sections<br>The core does not fully transform to martensite<br>Solution: Use oil quenching or flash oil quenching for sections above 63.5 mm","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339040357","position":10,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339040357","name":"\u00bfEs el S7 adecuado para aplicaciones de alta temperatura?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"S7 can be used at moderately elevated temperatures, but it is not a dedicated hot-work steel.<br>For occasional or moderate heat exposure: acceptable<br>For continuous high-temperature service: better to use H-series steels<br>The tempering temperature should always be higher than the service temperature to avoid softening during use.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339041395","position":11,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339041395","name":"\u00bfCu\u00e1l es el mayor error en el tratamiento t\u00e9rmico S7?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The most common mistakes are:<br>Not tempering immediately after quenching<br>Using air quenching for sections that are too thick<br>Overheating during austenitizing<br>Ignoring stress relief before hardening<br>Among these, delayed tempering and incorrect quenching methods cause the most failures.","inLanguage":"es"},"inLanguage":"es"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-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":"S7 Tool Steel Heat Treatment Guide S7 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F (649\u2013677\u00b0C), austenitizing at about 1725\u00b0F (940\u00b0C), air quenching for sections up to about 2.5 in. (63.5 mm), and applying immediate double tempering. For most cold-work tooling, S7 is commonly tempered at 400\u2013500\u00b0F (204\u2013260\u00b0C), producing a typical working hardness of…","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-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":"S7 Tool Steel Heat Treatment Guide S7 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F (649\u2013677\u00b0C), austenitizing at about 1725\u00b0F (940\u00b0C), air quenching for sections up to about 2.5 in. (63.5 mm), and applying immediate double tempering. For most cold-work tooling, S7 is commonly tempered at 400\u2013500\u00b0F (204\u2013260\u00b0C), producing a typical working hardness of…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/11673","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=11673"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/11673\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media\/15089"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media?parent=11673"}],"curies":[{"name":"gracias","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}