{"id":15330,"date":"2026-05-14T15:06:41","date_gmt":"2026-05-14T07:06:41","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15330"},"modified":"2026-10-28T08:19:42","modified_gmt":"2026-10-28T00:19:42","slug":"52100-steel-properties","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/52100-steel-properties\/","title":{"rendered":"Propiedades del acero 52100: composici\u00f3n, dureza y equivalentes"},"content":{"rendered":"

Propiedades del acero 52100: composici\u00f3n, dureza y equivalentes<\/h1>\n\n\n\n

SAE\/AISI acero 52100<\/a> El acero aleado 52100 ocupa una posici\u00f3n central en el campo de la ciencia e ingenier\u00eda de materiales, especialmente en la fabricaci\u00f3n de componentes mec\u00e1nicos de precisi\u00f3n. Se considera el acero cl\u00e1sico para rodamientos, y sus propiedades integrales sirven como referencia para medir y evaluar la composici\u00f3n de otros aceros similares.<\/p>\n\n\n\n

Como acero al cromo de alto contenido en carbono y baja aleaci\u00f3n, la principal ventaja del acero 52100 reside en su excepcional dureza y su superior resistencia al desgaste. Estas propiedades lo convierten en una opci\u00f3n indispensable para aplicaciones que requieren un funcionamiento prolongado y de alta intensidad.<\/p>\n\n\n\n

\"Acero
acero 52100<\/figcaption><\/figure>\n\n\n\n

Definici\u00f3n de 52100: Composici\u00f3n qu\u00edmica<\/h2>\n\n\n\n

Como acero de baja aleaci\u00f3n, el 52100 pertenece a la serie 5100, que son aceros de baja aleaci\u00f3n especificados con m\u00e1s de 0.30% C y adaptables a procesos de austempering. Se utiliza espec\u00edficamente en aplicaciones de desgaste sin requerir carburizaci\u00f3n.<\/p>\n\n\n\n

Dureza y tratamiento t\u00e9rmico<\/h2>\n\n\n\n

La excepcional resistencia a la fatiga y al desgaste del acero 52100 se debe a su tratamiento t\u00e9rmico. El objetivo principal de este tratamiento es optimizar su microestructura interna, transform\u00e1ndola en una estructura martens\u00edtica dura que cumpla con las exigentes demandas de fatiga por contacto rodante bajo cargas elevadas.<\/p>\n\n\n\n

Microestructura y par\u00e1metros de tratamiento<\/h3>\n\n\n\n

El proceso est\u00e1ndar de tratamiento t\u00e9rmico consta principalmente de tres pasos clave:<\/p>\n\n\n\n

    \n
  1. Austenizaci\u00f3n: el primer paso. El acero 52100 debe calentarse a un rango de temperatura muy estrecho y preciso de 855 \u00b1 5 \u00b0C. Este rango garantiza la austenizaci\u00f3n completa del acero y controla la cantidad de austenita retenida tras el temple a un nivel razonable. Es fundamental evitar estrictamente temperaturas superiores a 860 \u00b0C (1600 \u00b0F). El sobrecalentamiento produce un exceso de austenita retenida, que forma f\u00e1cilmente martensita gruesa, con forma de aguja y microfisuras durante el temple posterior. Esto resulta muy perjudicial para la resistencia final y la vida \u00fatil del componente.<\/li>\n\n
  2. Temple: Inmediatamente despu\u00e9s de la austenizaci\u00f3n, realice un temple en aceite para obtener una estructura martens\u00edtica de alta dureza.<\/li>\n\n
  3. Templado: El acero endurecido por temple se vuelve duro y quebradizo, por lo que requiere un templado inmediato para evitar el agrietamiento. El acero 52100 se templa normalmente a baja temperatura, entre 180 y 250 \u00b0C, para aliviar las tensiones internas, mejorar la tenacidad y mantener una alta dureza.<\/li>\n<\/ol>\n\n\n\n

    Tras someterse a este conjunto completo de procesos, el acero 52100 alcanza sus propiedades ideales. Su microestructura consiste principalmente en una matriz martens\u00edtica ligeramente templada, carburos residuales distribuidos uniformemente y una peque\u00f1a cantidad de austenita retenida inferior a 5%. Los carburos residuales no disueltos contribuyen a una mayor resistencia al desgaste.<\/p>\n\n\n\n

    Niveles de dureza objetivo<\/h3>\n\n\n\n

    El acero 52100 puede alcanzar una alta dureza mediante tratamiento t\u00e9rmico, un factor clave para su idoneidad como acero de alto rendimiento para rodamientos. Su valor de dureza no es fijo, sino que var\u00eda dentro de un rango determinado seg\u00fan la aplicaci\u00f3n espec\u00edfica y el proceso de tratamiento t\u00e9rmico.<\/p>\n\n\n\n

    Tras un tratamiento t\u00e9rmico est\u00e1ndar, la dureza Rockwell (HRC) del acero 52100 suele oscilar entre 55 y 60 HRC, o entre 62 y 64 HRC bajo procesos espec\u00edficos.<\/p>\n\n\n\n

    Los valores de dureza tambi\u00e9n se ajustan con precisi\u00f3n seg\u00fan la aplicaci\u00f3n final. Por ejemplo, en aplicaciones de rodamientos convencionales, la dureza superficial suele controlarse en torno a 62 HRC. Sin embargo, al fabricar moldes de precisi\u00f3n, como los utilizados para la fusi\u00f3n al vac\u00edo de electrodos consumibles, los valores de dureza se controlan con mayor precisi\u00f3n, situ\u00e1ndose entre 59 y 61 HRC, para lograr un equilibrio entre la dureza y la durabilidad del molde.<\/p>\n\n\n\n

    A nivel micro, su dureza tambi\u00e9n presenta variaciones. Las investigaciones indican que, tras el mecanizado, la dureza cercana a la superficie del material (aproximadamente 900 HV0.025) es significativamente mayor que su dureza interna global (aproximadamente 750 HV0.025), lo que demuestra un endurecimiento superficial durante el mecanizado.<\/p>\n\n\n\n

    Propiedades mec\u00e1nicas clave<\/h2>\n\n\n\n

    M\u00f3dulo de elasticidad y resistencia<\/h3>\n\n\n\n
      \n
    • Rigidez: El m\u00f3dulo de Young, o m\u00f3dulo el\u00e1stico, del acero 52100 es de 210 GPa.<\/li>\n\n
    • Resistencia: La resistencia del acero 52100 debe distinguirse seg\u00fan su tratamiento t\u00e9rmico. En estado recocido, su resistencia se reduce intencionalmente para facilitar el mecanizado. En esta etapa, su resistencia a la tracci\u00f3n es de aproximadamente 379 MPa y su l\u00edmite el\u00e1stico es de unos 165 MPa. Tras el temple, su resistencia m\u00e1xima a la fractura es de 590 MPa.<\/li>\n<\/ul>\n\n\n\n

      Resistencia y tenacidad a la fractura<\/h3>\n\n\n\n

      La alta dureza suele ir acompa\u00f1ada de una baja tenacidad. Incluso despu\u00e9s del revenido est\u00e1ndar a 200 \u00b0C, la tenacidad general del acero 52100 templado y revenido sigue siendo baja. Su tenacidad a la fractura (K_Ic<\/sub>) normalmente oscila solo entre 15 y 25 MPa m1\/2<\/sup>, lo que indica una resistencia relativamente baja a la propagaci\u00f3n de grietas.<\/p>\n\n\n\n

      Soldabilidad<\/h3>\n\n\n\n

      El acero AISI 52100 es muy propenso a agrietarse durante el temple debido a su alto contenido de carbono y, por lo tanto, no es soldable.<\/p>\n\n\n\n

      Calificaciones y designaciones equivalentes<\/h2>\n\n\n\n

      Como material reconocido internacionalmente, la norma SAE 52100 cuenta con m\u00faltiples designaciones equivalentes en diferentes est\u00e1ndares nacionales e industriales.<\/p>\n\n\n\n

      Est\u00e1ndar (Pa\u00eds\/Regi\u00f3n)<\/strong><\/th>Grado equivalente<\/strong><\/th>N.\u00ba W (Werkstoff alem\u00e1n)<\/strong><\/th><\/tr><\/thead>
      DIN \/ EN<\/strong> (Alemania \/ Europa)<\/td>100Cr6<\/strong><\/td>1.3505<\/strong><\/td><\/tr>
      JIS<\/strong> (Jap\u00f3n)<\/td>SUJ2<\/strong><\/td>\u2013<\/td><\/tr>
      GB<\/strong> (Porcelana)<\/td>GCr15<\/strong><\/td>\u2013<\/td><\/tr>
      BS<\/strong> (Reino Unido)<\/td>EN31<\/strong> (tambi\u00e9n 534A99 \/ 535A99)<\/td>\u2013<\/td><\/tr>
      ISO<\/strong> (Internacional)<\/td>100Cr6<\/strong><\/td>1.3505<\/td><\/tr>
      UNS<\/strong> (EE.UU)<\/td>G52986<\/strong><\/td>\u2013<\/td><\/tr>
      GOST<\/strong> (Rusia)<\/td>ShKh15<\/strong><\/td>\u2013<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

      52100 Steel Properties: Composition, Hardness & Equivalents SAE\/AISI 52100 steel is an alloy steel occupying a central position in the field of materials science and engineering, particularly in the manufacture of precision mechanical components. It is considered the classic rolling bearing steel, and the comprehensive properties of 52100 steel serve as the benchmark against which […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"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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