{"id":11688,"date":"2025-12-23T14:12:35","date_gmt":"2025-12-23T06:12:35","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11688"},"modified":"2026-06-25T15:13:04","modified_gmt":"2026-06-25T07:13:04","slug":"m2-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/m2-tool-steel-heat-treatment\/","title":{"rendered":"Tratamento t\u00e9rmico do a\u00e7o M2: t\u00eampera, revenido e tabela de dureza 60-65 HRC"},"content":{"rendered":"<section class=\"aobo-m2-heat-treatment-page\">\n  <style>\n    .aobo-m2-heat-treatment-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      font-family: inherit;\n      color: var(--aobo-text);\n      line-height: 1.7;\n      background: transparent;\n      padding: 0;\n      box-sizing: border-box;\n    }\n\n    .aobo-m2-heat-treatment-page * {\n      box-sizing: border-box;\n    }\n\n    .aobo-wrap {\n      max-width: 1180px;\n      margin: 0 auto;\n      padding: 0;\n    }\n\n    .aobo-hero {\n      background: linear-gradient(135deg, #ffffff 0%, #f7fbff 56%, #eaf2ff 100%);\n      border: 1px solid var(--aobo-border);\n      border-radius: 28px;\n      padding: 42px 38px;\n      margin-bottom: 24px;\n      box-shadow: var(--aobo-shadow);\n      overflow: hidden;\n      position: relative;\n    }\n\n    .aobo-hero::after {\n      content: \"\";\n      position: absolute;\n      right: -90px;\n      top: -90px;\n      width: 260px;\n      height: 260px;\n      border-radius: 50%;\n      background: rgba(12, 86, 208, 0.08);\n    }\n\n    .aobo-hero h1 {\n      margin: 0 0 16px;\n      color: #082d6f;\n      font-size: clamp(34px, 4vw, 54px);\n      line-height: 1.05;\n      letter-spacing: 0;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero p {\n      margin: 0 0 12px;\n      font-size: 17px;\n      color: #314158;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-article {\n      max-width: 1180px;\n      margin: 0 auto;\n    }\n\n    .aobo-btn {\n      display: inline-flex;\n      align-items: center;\n      justify-content: center;\n      min-height: 42px;\n      padding: 10px 16px;\n      border-radius: 999px;\n      text-align: center;\n      text-decoration: none;\n      font-weight: 700;\n      font-size: 14px;\n      line-height: 1.2;\n      transition: all 0.2s ease;\n      cursor: pointer;\n      white-space: nowrap;\n    }\n\n    .aobo-btn-primary {\n      background: var(--aobo-blue);\n      color: #ffffff !important;\n      border: 1px solid var(--aobo-blue);\n    }\n\n    .aobo-btn-secondary {\n      background: #ffffff;\n      color: var(--aobo-blue) !important;\n      border: 1px solid var(--aobo-border);\n    }\n\n    .aobo-btn:hover {\n      transform: translateY(-1px);\n    }\n\n    .aobo-supply-block {\n      display: grid;\n      grid-template-columns: auto minmax(0, 1fr);\n      align-items: center;\n      gap: 24px;\n      margin: 0 0 26px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 24px;\n      background: #ffffff;\n      box-shadow: 0 14px 36px rgba(12, 86, 208, 0.09);\n      overflow: hidden;\n      padding: 24px;\n    }\n\n    .aobo-supply-image {\n      width: 190px;\n      aspect-ratio: 1;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      overflow: hidden;\n      background: #f7fbff;\n    }\n\n    .aobo-supply-image img {\n      display: block;\n      width: 100%;\n      height: 100%;\n      object-fit: cover;\n    }\n\n    .aobo-supply-content {\n      display: flex;\n      flex-direction: column;\n      justify-content: center;\n      padding: 0;\n    }\n\n    .aobo-supply-content h2 {\n      margin: 0 0 8px;\n      color: #082d6f;\n      font-size: 24px;\n      line-height: 1.25;\n    }\n\n    .aobo-supply-content p {\n      margin: 0;\n      font-size: 17px;\n      color: var(--aobo-text);\n    }\n\n    .aobo-supply-actions {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 12px;\n      margin-top: 18px;\n    }\n\n    .aobo-supply-actions .aobo-btn {\n      min-width: 190px;\n    }\n\n    .aobo-article h2 {\n      margin: 44px 0 16px;\n      color: #082d6f;\n      font-size: 30px;\n      line-height: 1.25;\n    }\n\n    .aobo-article h3 {\n      margin: 30px 0 12px;\n      color: #082d6f;\n      font-size: 23px;\n      line-height: 1.3;\n    }\n\n    .aobo-article p {\n      margin: 0 0 18px;\n      font-size: 17px;\n      color: var(--aobo-text);\n    }\n\n    .aobo-table-wrap {\n      overflow-x: auto;\n      margin: 22px 0 28px;\n      border-radius: 18px;\n      border: 1px solid var(--aobo-border);\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n    }\n\n    .aobo-table {\n      width: 100%;\n      min-width: 760px;\n      border-collapse: collapse;\n      background: #ffffff;\n    }\n\n    .aobo-table th {\n      background: var(--aobo-blue-soft);\n      color: #082d6f;\n      text-align: left;\n      padding: 14px 16px;\n      font-size: 15px;\n      vertical-align: top;\n    }\n\n    .aobo-table td {\n      padding: 14px 16px;\n      border-bottom: 1px solid #e8eef8;\n      vertical-align: top;\n      font-size: 15px;\n    }\n\n    .aobo-table tr:last-child td {\n      border-bottom: none;\n    }\n\n    .aobo-table td:first-child {\n      color: #082d6f;\n      font-weight: 700;\n    }\n\n    .aobo-note-box {\n      margin: 34px 0;\n      padding: 22px 24px;\n      border: 1px solid var(--aobo-border);\n      border-left: 5px solid var(--aobo-orange);\n      border-radius: 16px;\n      background: #fbfdff;\n      color: var(--aobo-muted);\n    }\n\n    .aobo-note-box p {\n      margin: 0 0 14px;\n      color: var(--aobo-muted);\n      font-style: italic;\n    }\n\n    .aobo-note-box p:last-child {\n      margin-bottom: 0;\n    }\n\n    .aobo-figure {\n      margin: 26px auto 34px;\n      max-width: 860px;\n    }\n\n    .aobo-figure img {\n      display: block;\n      width: 100%;\n      height: auto;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n      background: #ffffff;\n    }\n\n    .aobo-figure figcaption {\n      margin-top: 12px;\n      color: var(--aobo-muted);\n      font-size: 15px;\n      line-height: 1.6;\n    }\n\n    .aobo-figure figcaption strong {\n      display: block;\n      margin-bottom: 6px;\n      color: #082d6f;\n      font-size: 18px;\n      text-align: center;\n    }\n\n    .aobo-final-cta {\n      margin-top: 34px;\n      padding: 34px;\n      border-radius: 28px;\n      background: linear-gradient(135deg, #073b91 0%, #0c56d0 100%);\n      color: #ffffff;\n      box-shadow: 0 18px 45px rgba(12, 86, 208, 0.20);\n      display: flex;\n      align-items: center;\n      justify-content: space-between;\n      gap: 20px;\n      flex-wrap: wrap;\n    }\n\n    .aobo-final-cta h2 {\n      margin: 0 0 12px;\n      color: #ffffff;\n      font-size: 26px;\n      line-height: 1.25;\n      letter-spacing: 0;\n    }\n\n    .aobo-final-cta p {\n      margin: 0;\n      color: rgba(255, 255, 255, 0.92);\n      max-width: 760px;\n      font-size: 17px;\n    }\n\n    .aobo-final-cta .aobo-supply-actions {\n      margin-top: 0;\n    }\n\n    .aobo-final-cta .aobo-btn-primary {\n      background: #ffffff;\n      border-color: #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-final-cta .aobo-btn-primary:hover {\n      background: #fff7ed;\n      color: #073b91 !important;\n    }\n\n    .aobo-final-cta .aobo-btn-secondary {\n      background: transparent;\n      border-color: rgba(255, 255, 255, 0.75);\n      color: #ffffff !important;\n    }\n\n    .aobo-final-cta .aobo-btn-secondary:hover {\n      background: rgba(255, 255, 255, 0.14);\n      border-color: #ffffff;\n      color: #ffffff !important;\n    }\n\n    .aobo-article a {\n      color: var(--aobo-blue);\n      font-weight: 700;\n      text-decoration: none;\n    }\n\n    .aobo-article a:hover {\n      color: var(--aobo-orange);\n    }\n\n    @media (max-width: 760px) {\n      .aobo-hero {\n        padding: 30px 22px;\n      }\n\n      .aobo-hero h1 {\n        font-size: 34px;\n      }\n\n      .aobo-article h2 {\n        font-size: 25px;\n      }\n\n      .aobo-supply-block {\n        grid-template-columns: 1fr;\n        gap: 18px;\n        padding: 20px;\n      }\n\n      .aobo-supply-image {\n        width: min(190px, 100%);\n        margin: 0 auto;\n      }\n\n      .aobo-supply-content {\n        padding: 0;\n      }\n\n      .aobo-final-cta {\n        padding: 26px 22px;\n      }\n\n      .aobo-final-cta .aobo-supply-actions {\n        width: 100%;\n      }\n\n      .aobo-final-cta .aobo-btn {\n        width: 100%;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-wrap\">\n    <header class=\"aobo-hero\">\n      <h1>Guia de Tratamento T\u00e9rmico de A\u00e7o para Ferramentas M2<\/h1>\n      <p>O a\u00e7o ferramenta M2 \u00e9 tratado termicamente por meio de duplo pr\u00e9-aquecimento, austenitiza\u00e7\u00e3o a 1190\u20131230 \u00b0C, t\u00eampera em \u00f3leo, ar ou banho de sal e, em seguida, revenido duplo ou triplo a 538\u2013595 \u00b0C. Revenido corretamente, o M2 atinge cerca de 60\u201365 HRC, com a alta dureza, resist\u00eancia ao desgaste e dureza a quente esperadas de um a\u00e7o r\u00e1pido.<\/p>\n      <p>Uma sequ\u00eancia t\u00edpica consiste em um primeiro pr\u00e9-aquecimento a 540\u2013650 \u00b0C e um segundo a 845\u2013870 \u00b0C. Ap\u00f3s a homogeneiza\u00e7\u00e3o da temperatura, mantenha-se nessa temperatura por um curto per\u00edodo \u2014 cerca de 2 a 5 minutos. Resfrie rapidamente a cerca de 66\u201393 \u00b0C. Fa\u00e7a o revenimento imediatamente. A janela de processamento \u00e9 estreita. Os controles abaixo s\u00e3o mais importantes do que o tempo de forno.<\/p>\n      <p>O M2 \u00e9 um a\u00e7o r\u00e1pido para ferramentas, composto por molibd\u00eanio e tungst\u00eanio. Problemas como diminui\u00e7\u00e3o da dureza, crescimento de gr\u00e3os, austenita retida persistente, fissuras, descarboneta\u00e7\u00e3o superficial ou instabilidade dimensional podem resultar de perman\u00eancia excessiva na t\u00eampera, superaquecimento, controle inadequado da atmosfera ou revenido tardio e insuficiente.<\/p>\n    <\/header>\n\n    <main class=\"aobo-article\">\n      <section class=\"aobo-supply-block\">\n        <div class=\"aobo-supply-image\">\n          <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/M2-HIGH-SPEED-STEEL.avif\" alt=\"Produto em a\u00e7o r\u00e1pido M2\" loading=\"lazy\">\n        <\/div>\n        <div class=\"aobo-supply-content\">\n          <h2>A\u00e7o r\u00e1pido M2 da Aobo Steel<\/h2>\n          <p>A Aobo Steel fornece a\u00e7o M2 recozido para pedidos em grande quantidade, com pedido m\u00ednimo de 5 toneladas. Envie suas dimens\u00f5es e quantidades para solicitar um or\u00e7amento ou acesse a p\u00e1gina do produto para obter informa\u00e7\u00f5es sobre composi\u00e7\u00e3o qu\u00edmica, graus equivalentes, tamanhos dispon\u00edveis, toler\u00e2ncias e detalhes de inspe\u00e7\u00e3o.<\/p>\n          <div class=\"aobo-supply-actions\">\n            <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n            <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/pt\/m2-tool-steel\/\">Veja os detalhes de fornecimento do M2<\/a>\n          <\/div>\n        <\/div>\n      <\/section>\n\n      <h2>Tabela de temperaturas de tratamento t\u00e9rmico do a\u00e7o ferramenta M2<\/h2>\n      <p>O gr\u00e1fico abaixo resume os principais dados de tratamento t\u00e9rmico do a\u00e7o ferramenta M2. A sequ\u00eancia completa do processo \u00e9 explicada passo a passo na se\u00e7\u00e3o a seguir.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Etapa do processo<\/th><th>Temperatura\/Condi\u00e7\u00e3o<\/th><th>Controle de teclas<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Recozimento<\/td><td>870\u2013900 \u00b0C \/ 1600\u20131650 \u00b0F<\/td><td>Mantenha a temperatura por cerca de 1 hora por polegada de espessura. Resfrie lentamente no forno at\u00e9 650 \u00b0C e, em seguida, resfrie ao ar. A dureza ap\u00f3s o recozimento \u00e9 tipicamente de cerca de 241 HB, at\u00e9 um m\u00e1ximo especificado de aproximadamente 248 HB.<\/td><\/tr>\n            <tr><td>Al\u00edvio do estresse<\/td><td>650\u2013675 \u00b0C \/ 1200\u20131245 \u00b0F<\/td><td>Utilizado ap\u00f3s usinagem pesada. Manter de 1 a 2 horas por polegada de se\u00e7\u00e3o transversal e, em seguida, resfriar lentamente.<\/td><\/tr>\n            <tr><td>Primeiro pr\u00e9-aquecimento<\/td><td>540\u2013650 \u00b0C \/ 1000\u20131200 \u00b0F<\/td><td>Reduz o choque t\u00e9rmico inicial.<\/td><\/tr>\n            <tr><td>Segundo pr\u00e9-aquecimento<\/td><td>845\u2013870 \u00b0C \/ 1555\u20131600 \u00b0F<\/td><td>Equaliza a ferramenta antes da austenitiza\u00e7\u00e3o.<\/td><\/tr>\n            <tr><td>Austenitiza\u00e7\u00e3o<\/td><td>1190\u20131230 \u00b0C \/ 2175\u20132245 \u00b0F<\/td><td>Faixa inferior para tenacidade; faixa superior para dureza, resist\u00eancia ao desgaste e dureza a quente.<\/td><\/tr>\n            <tr><td>Tempo de imers\u00e3o<\/td><td>Geralmente, de 2 a 5 minutos ap\u00f3s a equaliza\u00e7\u00e3o.<\/td><td>Evite deixar de molho por muito tempo.<\/td><\/tr>\n            <tr><td>Resfriamento<\/td><td>Banho de \u00f3leo, ar ou sal<\/td><td>Resfrie rapidamente a uma temperatura entre 66 e 93 \u00b0C \/ 150 e 200 \u00b0F.<\/td><\/tr>\n            <tr><td>dureza ap\u00f3s t\u00eampera<\/td><td>Aproximadamente 64\u201366 HRC<\/td><td>Revenimento imediato. N\u00e3o deixe M2 no estado em que foi temperado.<\/td><\/tr>\n            <tr><td>Tratamento opcional para temperaturas abaixo de zero<\/td><td>-100 a -195 \u00b0C \/ -150 a -320 \u00b0F<\/td><td>Utilizado quando a estabilidade dimensional \u00e9 cr\u00edtica.<\/td><\/tr>\n            <tr><td>T\u00eampera<\/td><td>538\u2013595 \u00b0C \/ 1000\u20131105 \u00b0F<\/td><td>\u00c9 necess\u00e1rio um processo de t\u00eampera dupla. A t\u00eampera tripla \u00e9 frequentemente utilizada para ferramentas de alta exig\u00eancia.<\/td><\/tr>\n            <tr><td>dureza final t\u00edpica<\/td><td>Cerca de 60 a 65 HRC<\/td><td>Depende da temperatura de austenitiza\u00e7\u00e3o, do m\u00e9todo de t\u00eampera, da temperatura de revenido e do tamanho da se\u00e7\u00e3o transversal.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>O a\u00e7o M2 deve ser aquecido em forno a v\u00e1cuo, em atmosfera neutra controlada ou, quando poss\u00edvel, em banho de sal neutro. Nas temperaturas de t\u00eampera do M2, pode ocorrer descarboneta\u00e7\u00e3o superficial. Isso resulta em uma camada externa macia e reduz a resist\u00eancia ao desgaste.<\/p>\n\n      <h2>Como realizar o tratamento t\u00e9rmico do a\u00e7o ferramenta M2 passo a passo<\/h2>\n      <p>O tratamento t\u00e9rmico M2 deve ser gerenciado como um processo metal\u00fargico cont\u00ednuo; cada etapa se inter-relaciona e influencia as demais. O pr\u00e9-aquecimento inadequado aumenta a probabilidade de choque t\u00e9rmico e fissura\u00e7\u00e3o. A austenitiza\u00e7\u00e3o sub\u00f3tima interrompe a dissolu\u00e7\u00e3o de carbonetos e aumenta a austenita retida. O resfriamento inadequado prejudica a dureza alcan\u00e7\u00e1vel e causa distor\u00e7\u00e3o. O revenido em m\u00faltiplos est\u00e1gios insuficiente deixa a microestrutura metaest\u00e1vel.<\/p>\n\n      <h3>Passo 1: Al\u00edvio do estresse antes do endurecimento<\/h3>\n      <p>Recomenda-se o al\u00edvio de tens\u00f5es quando uma ferramenta M2 tiver sido submetida a usinagem intensa antes da t\u00eampera. Quando uma grande quantidade de material \u00e9 removida, as tens\u00f5es internas de usinagem podem causar movimenta\u00e7\u00e3o ou fissuras durante o tratamento t\u00e9rmico final.<\/p>\n      <p>Aque\u00e7a a ferramenta lentamente a 650\u2013675 \u00b0C (1200\u20131245 \u00b0F) e mantenha nessa temperatura por cerca de 1 a 2 horas por polegada de se\u00e7\u00e3o transversal. Resfrie a ferramenta lentamente at\u00e9 a temperatura ambiente. Esta etapa n\u00e3o endurece o a\u00e7o. Ela alivia a tens\u00e3o interna antes do ciclo de t\u00eampera em alta temperatura. Conclua o desbaste antes do al\u00edvio de tens\u00f5es. Deixe uma margem suficiente para a retifica\u00e7\u00e3o final ap\u00f3s a t\u00eampera e o revenimento.<\/p>\n\n      <h3>Etapa 2: Pr\u00e9-aquecimento duplo para a\u00e7o ferramenta M2<\/h3>\n      <p>O a\u00e7o M2 n\u00e3o deve ser colocado diretamente na faixa de austenitiza\u00e7\u00e3o. Devido ao seu alto teor de liga e alta temperatura de endurecimento, o aquecimento direto em alta temperatura pode causar choque t\u00e9rmico significativo e aumentar o risco de fissura\u00e7\u00e3o.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Etapa de pr\u00e9-aquecimento<\/th><th>Faixa de temperatura<\/th><th>Finalidade<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Primeiro, pr\u00e9-aque\u00e7a.<\/td><td>540\u2013650 \u00b0C \/ 1000\u20131200 \u00b0F<\/td><td>Reduz o choque t\u00e9rmico inicial e inicia um aquecimento uniforme.<\/td><\/tr>\n            <tr><td>Segundo pr\u00e9-aquecimento<\/td><td>845\u2013870 \u00b0C \/ 1555\u20131600 \u00b0F<\/td><td>Equaliza a ferramenta antes do aquecimento r\u00e1pido at\u00e9 a faixa de austenitiza\u00e7\u00e3o.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>O objetivo do pr\u00e9-aquecimento \u00e9 equalizar as temperaturas, n\u00e3o mant\u00ea-las aquecidas por muito tempo. Uma vez aquecidas uniformemente, austenitize a ferramenta imediatamente. Manter a ferramenta aquecida por tempo excessivo \u00e9 desnecess\u00e1rio e pode aumentar a descarboneta\u00e7\u00e3o se a atmosfera for mal protegida.<\/p>\n      <p>Algumas refer\u00eancias indicam uma faixa geral de pr\u00e9-aquecimento M2 de 730\u2013845 \u00b0C, ou um ciclo elevado de dois est\u00e1gios a 843 \u00b0C e 1010 \u00b0C. Para um processo claro e dividido em etapas, as sequ\u00eancias de 540\u2013650 \u00b0C e 845\u2013870 \u00b0C s\u00e3o mais f\u00e1ceis de seguir e explicam diretamente a ordem de aquecimento antes do endurecimento.<\/p>\n\n      <h3>Etapa 3: Temperatura de austenitiza\u00e7\u00e3o e tempo de perman\u00eancia<\/h3>\n      <p>A liga M2 \u00e9 tipicamente austenitizada a 1190\u20131230 \u00b0C (2175\u20132245 \u00b0F). Esta \u00e9 a etapa mais cr\u00edtica. A temperatura deve ser suficiente para dissolver os carbonetos de liga necess\u00e1rios, mas permanecer abaixo dos limites que causam crescimento de gr\u00e3o, excesso de austenita retida ou danos t\u00e9rmicos.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Alvo de austenitiza\u00e7\u00e3o<\/th><th>Faixa de temperatura<\/th><th>L\u00f3gica de aplica\u00e7\u00e3o<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Prioridade de resist\u00eancia<\/td><td>1175\u20131190 \u00b0C \/ 2150\u20132175 \u00b0F<\/td><td>Utilizado quando a resist\u00eancia e a durabilidade, especialmente em rela\u00e7\u00e3o \u00e0 resist\u00eancia a rachaduras, s\u00e3o mais importantes do que a dureza m\u00e1xima.<\/td><\/tr>\n            <tr><td>Faixa de t\u00eampera padr\u00e3o M2<\/td><td>1190\u20131230 \u00b0C \/ 2175\u20132245 \u00b0F<\/td><td>Gama geral de ferramentas de corte M2 e ferramentas resistentes ao desgaste.<\/td><\/tr>\n            <tr><td>Dureza e resist\u00eancia ao desgaste m\u00e1ximas<\/td><td>Aproximadamente 1230\u00b0C \/ 2245\u00b0F<\/td><td>Utilizado quando s\u00e3o necess\u00e1rias alta dureza, resist\u00eancia ao desgaste e dureza a vermelho.<\/td><\/tr>\n            <tr><td>Ajuste do banho de sal<\/td><td>Cerca de 14\u00b0C \/ 25\u00b0F mais baixo<\/td><td>Utilizado para endurecer tecidos ap\u00f3s banho de sal.<\/td><\/tr>\n            <tr><td>Ajuste M2 de alto carbono<\/td><td>Cerca de 14\u00b0C \/ 25\u00b0F mais baixo<\/td><td>Ajuda a reduzir o risco de sobreaquecimento e reten\u00e7\u00e3o de austenita.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>O tempo de perman\u00eancia na temperatura de austenitiza\u00e7\u00e3o deve ser curto. Ap\u00f3s a ferramenta atingir a temperatura, mantenha o M2 nessa temperatura por apenas 2 a 5 minutos. Este \u00e9 o tempo ap\u00f3s a equaliza\u00e7\u00e3o da temperatura na se\u00e7\u00e3o, e n\u00e3o o tempo total do ciclo do forno. O tempo gasto no aquecimento n\u00e3o \u00e9 contabilizado como tempo de perman\u00eancia na temperatura. Se\u00e7\u00f5es muito grandes podem necessitar de 5 a 7 minutos. N\u00e3o mantenha o M2 nessa temperatura como faria com um a\u00e7o de baixa liga.<\/p>\n      <p>O tempo excessivo de imers\u00e3o \u00e9 uma das causas mais comuns de falha no tratamento t\u00e9rmico M2. Muito tempo em alta temperatura dissolve muito carbono e liga na austenita. Isso aumenta a austenita retida, grosseira os gr\u00e3os e reduz a tenacidade. O aquecimento insuficiente tem o efeito oposto. Causa dissolu\u00e7\u00e3o insuficiente de carbonetos, menor dureza e endurecimento secund\u00e1rio mais fraco durante o revenido. O objetivo \u00e9 uma dissolu\u00e7\u00e3o controlada de carbonetos dentro de uma faixa estreita, e n\u00e3o o tempo m\u00e1ximo no forno.<\/p>\n\n      <h3>Etapa 4: M\u00e9todos de t\u00eampera: banho de \u00f3leo, ar e sal<\/h3>\n      <p>Ap\u00f3s a austenitiza\u00e7\u00e3o, resfrie a amostra M2 em \u00f3leo, ar ou banho de sal quente. O melhor m\u00e9todo depende do tamanho da ferramenta, da dureza desejada, da toler\u00e2ncia \u00e0 distor\u00e7\u00e3o e dos equipamentos dispon\u00edveis.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>M\u00e9todo de resfriamento<\/th><th>Melhor uso<\/th><th>Limita\u00e7\u00e3o principal<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>t\u00eampera de \u00f3leo<\/td><td>Resposta de maior dureza<\/td><td>Maior risco de distor\u00e7\u00e3o e fissuras do que o resfriamento a ar.<\/td><\/tr>\n            <tr><td>t\u00eampera por ar<\/td><td>Melhor estabilidade dimensional<\/td><td>A dureza pode ser menor em se\u00e7\u00f5es maiores ou com resfriamento mais lento.<\/td><\/tr>\n            <tr><td>banho de sal quente refrescante<\/td><td>Boa equaliza\u00e7\u00e3o de temperatura e redu\u00e7\u00e3o do choque t\u00e9rmico.<\/td><td>Requer equipamento adequado para banho de sal e controle rigoroso.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>A t\u00eampera em \u00f3leo \u00e9 frequentemente escolhida quando se exige a m\u00e1xima resposta de dureza, resfriando a ferramenta da austenitiza\u00e7\u00e3o at\u00e9 66\u201393 \u00b0C (150\u2013200 \u00b0F). A t\u00eampera ao ar \u00e9 mais suave e reduz o risco de distor\u00e7\u00e3o, sendo adequada para se\u00e7\u00f5es menores ou ferramentas onde a estabilidade dimensional \u00e9 mais importante do que um resfriamento agressivo. A t\u00eampera em banho de sal quente proporciona melhor controle da equaliza\u00e7\u00e3o da temperatura: a ferramenta \u00e9 mantida nessa temperatura at\u00e9 que a se\u00e7\u00e3o transversal se equalize, sendo ent\u00e3o resfriada ainda mais antes do revenimento, o que reduz o choque t\u00e9rmico e a distor\u00e7\u00e3o quando controlado adequadamente.<\/p>\n      <p>Independentemente do meio de t\u00eampera, o revenido deve come\u00e7ar assim que a ferramenta esfriar at\u00e9 66\u201393 \u00b0C. A perman\u00eancia prolongada no estado martens\u00edtico ap\u00f3s a t\u00eampera aumenta o risco de fissura\u00e7\u00e3o tardia ou distor\u00e7\u00e3o dimensional devido \u00e0 austenita retida n\u00e3o revenida e \u00e0 tens\u00e3o residual.<\/p>\n      <figure class=\"aobo-figure\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/12\/Time-temperature-transformation-diagram-for-M2-high-speed-tool-steel.avif\" alt=\"Diagrama de transforma\u00e7\u00e3o tempo-temperatura para a\u00e7o r\u00e1pido M2\" loading=\"lazy\">\n        <figcaption>\n          <strong>Figura: Diagrama de transforma\u00e7\u00e3o do a\u00e7o r\u00e1pido M2 austenitizado a 1230\u00b0C \/ 2250\u00b0F, com curvas de t\u00eampera em sal, t\u00eampera ao ar e resfriamento ao ar sobrepostas.<\/strong>\n          O diagrama mostra as regi\u00f5es de transforma\u00e7\u00e3o da perlita e da bainita, o in\u00edcio da martensita e as linhas de martensita 15%, 50% e 90%. Fonte: ASM Handbook, Volume 16, Machining, p\u00e1gina 121.\n        <\/figcaption>\n      <\/figure>\n\n      <h3>Etapa 5: Tratamento opcional para temperaturas abaixo de zero<\/h3>\n      <p>O tratamento subzero \u00e9 opcional. \u00c9 utilizado principalmente quando a estabilidade dimensional \u00e9 cr\u00edtica, como em ferramentas complexas, componentes de precis\u00e3o ou pe\u00e7as onde a austenita retida precisa ser ainda mais reduzida.<\/p>\n      <p>Uma faixa t\u00edpica de temperatura abaixo de zero \u00e9 de -100 a -195 \u00b0C (-150 a -320 \u00b0F). Ap\u00f3s a pe\u00e7a retornar \u00e0 temperatura ambiente, o revenimento deve come\u00e7ar imediatamente. Para formatos complexos, um breve revenimento de al\u00edvio de tens\u00f5es em baixa temperatura pode ser aplicado antes do congelamento para reduzir o risco de trincas. O tratamento abaixo de zero n\u00e3o substitui a austenitiza\u00e7\u00e3o, a t\u00eampera e os m\u00faltiplos revenimentos adequados. Trata-se apenas de uma etapa adicional de estabiliza\u00e7\u00e3o quando o projeto da ferramenta e as condi\u00e7\u00f5es de servi\u00e7o o exigem.<\/p>\n\n      <h3>Etapa 6: T\u00eampera dupla ou tripla<\/h3>\n      <p>O revenimento deve come\u00e7ar imediatamente ap\u00f3s a t\u00eampera. Se for utilizado um ciclo subzero, o revenimento deve ser iniciado assim que a pe\u00e7a retornar \u00e0 temperatura ambiente. O processo M2 depende do endurecimento secund\u00e1rio. O revenimento faz mais do que aliviar tens\u00f5es; ele controla a transforma\u00e7\u00e3o da austenita retida, a precipita\u00e7\u00e3o de carbonetos, a dureza final e a tenacidade.<\/p>\n      <p>A faixa de t\u00eampera comum para o a\u00e7o M2 \u00e9 de 538\u2013595 \u00b0C (1000\u20131105 \u00b0F). A t\u00eampera dupla \u00e9 o requisito m\u00ednimo pr\u00e1tico. A t\u00eampera tripla \u00e9 frequentemente utilizada para ferramentas de corte, ferramentas de precis\u00e3o e condi\u00e7\u00f5es de servi\u00e7o exigentes.<\/p>\n      <p>Cada ciclo de revenido deve ser seguido por um resfriamento \u00e0 temperatura ambiente antes do in\u00edcio do pr\u00f3ximo. Essa etapa de resfriamento \u00e9 importante porque a austenita retida pode se transformar em martensita fresca durante o resfriamento, e o pr\u00f3ximo revenido alivia a tens\u00e3o nessa martensita rec\u00e9m-formada. N\u00e3o confie em um \u00fanico revenido para a liga M2. Um ciclo geralmente n\u00e3o \u00e9 suficiente para estabilizar a estrutura.<\/p>\n\n      <h2>Tabela de temperatura de revenido e dureza M2<\/h2>\n      <p>O a\u00e7o M2 apresenta uma forte resposta de endurecimento secund\u00e1rio. Sua dureza n\u00e3o diminui simplesmente com o aumento da temperatura de revenido. Na faixa de alta temperatura de revenido, ocorre a precipita\u00e7\u00e3o de carbonetos finos de liga, e a dureza pode aumentar novamente.<\/p>\n      <p>O gr\u00e1fico abaixo mostra a dureza t\u00edpica ap\u00f3s revenimento duplo quando o a\u00e7o M2 \u00e9 austenitizado em torno de 1230\u00b0C \/ 2250\u00b0F.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Temperatura de t\u00eampera<\/th><th>Dureza temperada em \u00f3leo<\/th><th>Dureza ap\u00f3s t\u00eampera ao ar<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Como extinto<\/td><td>64,0\u201366,0 HRC<\/td><td>64,0\u201366,0 HRC<\/td><\/tr>\n            <tr><td>400\u00b0F \/ 204\u00b0C<\/td><td>63,0 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n            <tr><td>500\u00b0F \/ 260\u00b0C<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><\/tr>\n            <tr><td>600\u00b0F \/ 316\u00b0C<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><\/tr>\n            <tr><td>700\u00b0F \/ 371\u00b0C<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><\/tr>\n            <tr><td>800\u00b0F \/ 427\u00b0C<\/td><td>63,5 HRC<\/td><td>63,5 HRC<\/td><\/tr>\n            <tr><td>900\u00b0F \/ 482\u00b0C<\/td><td>64,0 HRC<\/td><td>64,0 HRC<\/td><\/tr>\n            <tr><td>1000\u00b0F \/ 540\u00b0C<\/td><td>64,5\u201365,5 HRC<\/td><td>62,0 HRC<\/td><\/tr>\n            <tr><td>1025\u00b0F \/ 550\u00b0C<\/td><td>65,0 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n            <tr><td>1050\u00b0F \/ 565\u00b0C<\/td><td>63,5\u201365,5 HRC<\/td><td>64,0 HRC<\/td><\/tr>\n            <tr><td>1100\u00b0F \/ 595\u00b0C<\/td><td>61,5\u201364,0 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n            <tr><td>1150\u00b0F \/ 620\u00b0C<\/td><td>60,0\u201362,0 HRC<\/td><td>60,0 HRC<\/td><\/tr>\n            <tr><td>1200\u00b0F \/ 650\u00b0C<\/td><td>53,0\u201353,5 HRC<\/td><td>53,0 HRC<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>Para muitas aplica\u00e7\u00f5es de corte e usinagem em a\u00e7o M2, o revenimento em torno de 540\u2013565 \u00b0C \u00e9 comum, pois situa-se pr\u00f3ximo \u00e0 faixa de endurecimento secund\u00e1rio e equilibra dureza, desempenho de corte, tenacidade e estabilidade.<\/p>\n      <p>O a\u00e7o M2 n\u00e3o deve ser subtemperado. Uma temperatura de revenido baixa ou um n\u00famero insuficiente de ciclos pode levar a tens\u00f5es internas elevadas e austenita retida inst\u00e1vel. O revenido duplo \u00e9 o m\u00ednimo, e o revenido triplo \u00e9 frequentemente utilizado para ferramentas mais exigentes.<\/p>\n\n      <h2>Efeito da temperatura de austenitiza\u00e7\u00e3o na dureza M2 revenida<\/h2>\n      <p>A temperatura de austenitiza\u00e7\u00e3o afeta a resposta final de dureza. Uma temperatura de t\u00eampera mais alta dissolve mais carbono e elementos de liga, fortalecendo o endurecimento secund\u00e1rio durante o revenido, mas tamb\u00e9m aumenta a austenita retida e o risco de superaquecimento.<\/p>\n      <p>A tabela abaixo utiliza um conjunto de dados separado, reportado em \u00b0C, portanto seus valores de pico diferem ligeiramente do gr\u00e1fico de revenido duplo em \u00b0F acima. Os dois n\u00e3o s\u00e3o contradit\u00f3rios. Eles prov\u00eam de diferentes lotes de a\u00e7o, condi\u00e7\u00f5es de austenitiza\u00e7\u00e3o e configura\u00e7\u00f5es de teste, e ambos mostram a mesma tend\u00eancia: um pico de endurecimento secund\u00e1rio pr\u00f3ximo a 525\u2013550 \u00b0C, seguido por uma queda acima de 575 \u00b0C.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Temperatura de t\u00eampera<\/th><th>Endurecido a 1180\u00b0C<\/th><th>Endurecido a 1200\u00b0C<\/th><th>Endurecido a 1220\u00b0C<\/th><th>Endurecido a 1240\u00b0C<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Como extinto<\/td><td>66,0 HRC<\/td><td>64,0 HRC<\/td><td>65,0 HRC<\/td><td>64,0 HRC<\/td><\/tr>\n            <tr><td>200\u00b0C<\/td><td>63,0 HRC<\/td><td>61,5 HRC<\/td><td>62,5 HRC<\/td><td>61,5 HRC<\/td><\/tr>\n            <tr><td>300\u00b0C<\/td><td>62,7 HRC<\/td><td>61,5 HRC<\/td><td>62,5 HRC<\/td><td>61,5 HRC<\/td><\/tr>\n            <tr><td>400\u00b0C<\/td><td>63,0 HRC<\/td><td>62,0 HRC<\/td><td>62,5 HRC<\/td><td>62,0 HRC<\/td><\/tr>\n            <tr><td>500\u00b0C<\/td><td>63,5 HRC<\/td><td>64,0 HRC<\/td><td>64,5 HRC<\/td><td>64,5 HRC<\/td><\/tr>\n            <tr><td>525\u00b0C<\/td><td>64,5 HRC<\/td><td>65,0 HRC<\/td><td>65,5 HRC<\/td><td>66,0 HRC<\/td><\/tr>\n            <tr><td>550\u00b0C<\/td><td>64,5 HRC<\/td><td>65,5 HRC<\/td><td>66,0 HRC<\/td><td>66,5 HRC<\/td><\/tr>\n            <tr><td>575\u00b0C<\/td><td>64,0 HRC<\/td><td>63,5 HRC<\/td><td>64,5 HRC<\/td><td>66,0 HRC<\/td><\/tr>\n            <tr><td>600\u00b0C<\/td><td>62,0 HRC<\/td><td>62,5 HRC<\/td><td>62,5 HRC<\/td><td>63,0 HRC<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>Por isso, o a\u00e7o M2 n\u00e3o deve ser tratado termicamente apenas para atingir o maior valor de dureza. Uma temperatura de t\u00eampera mais alta pode produzir um endurecimento secund\u00e1rio mais forte, mas a margem de seguran\u00e7a do processamento torna-se menor. Na produ\u00e7\u00e3o, o objetivo mais importante \u00e9 obter dureza est\u00e1vel com tenacidade aceit\u00e1vel, austenita retida controlada e vida \u00fatil da ferramenta confi\u00e1vel.<\/p>\n\n      <h2>Problemas de tratamento t\u00e9rmico M2<\/h2>\n      <p>A maioria das falhas no tratamento t\u00e9rmico M2 decorre de cinco \u00e1reas: austenitiza\u00e7\u00e3o incorreta, perman\u00eancia excessiva na atmosfera, prote\u00e7\u00e3o atmosf\u00e9rica inadequada, t\u00eampera incorreta e revenimento insuficiente.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Problema<\/th><th>Causa principal<\/th><th>Resultado<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Baixa dureza<\/td><td>Subaquecimento, dissolu\u00e7\u00e3o insuficiente de carbonetos, t\u00eampera inadequada ou excesso de austenita retida.<\/td><td>A ferramenta n\u00e3o consegue atingir a dureza de trabalho necess\u00e1ria.<\/td><\/tr>\n            <tr><td>Grossamento de gr\u00e3os<\/td><td>Superaquecimento ou imers\u00e3o excessiva<\/td><td>Menor resist\u00eancia e maior risco de fissuras.<\/td><\/tr>\n            <tr><td>Excesso de austenita retida<\/td><td>Alta temperatura de austenitiza\u00e7\u00e3o, longo tempo de perman\u00eancia na atmosfera ou revenimento insuficiente.<\/td><td>Altera\u00e7\u00e3o dimensional e dureza inst\u00e1vel.<\/td><\/tr>\n            <tr><td>Rachaduras por t\u00eampera<\/td><td>Choque t\u00e9rmico, estresse severo de t\u00eampera ou revenido retardado.<\/td><td>Rachaduras durante ou ap\u00f3s o endurecimento.<\/td><\/tr>\n            <tr><td>Descarboneta\u00e7\u00e3o<\/td><td>Aquecimento sem prote\u00e7\u00e3o atmosf\u00e9rica<\/td><td>Superf\u00edcie macia e baixa resist\u00eancia ao desgaste.<\/td><\/tr>\n            <tr><td>Subtemperagem<\/td><td>Temperatura de t\u00eampera baixa ou n\u00famero insuficiente de ciclos de t\u00eampera.<\/td><td>Fragilidade e estrutura inst\u00e1vel.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>O superaquecimento e o tempo de imers\u00e3o excessivo s\u00e3o problemas s\u00e9rios, pois o a\u00e7o M2 \u00e9 processado pr\u00f3ximo ao seu limite de alta temperatura. Temperaturas ou tempos excessivos causam o crescimento de gr\u00e3os grosseiros, aumentam a austenita retida, reduzem a tenacidade e diminuem a confiabilidade da ferramenta. O aquecimento insuficiente impede a dissolu\u00e7\u00e3o suficiente dos carbonetos da liga, reduzindo a dureza ap\u00f3s a t\u00eampera e enfraquecendo o endurecimento secund\u00e1rio durante o revenido.<\/p>\n      <p>A presen\u00e7a de austenita retida \u00e9 esperada no a\u00e7o M2, mas o excesso de austenita retida causa problemas. Ela pode se transformar posteriormente durante o servi\u00e7o, formando martensita fresca, causando crescimento dimensional e tens\u00f5es internas, al\u00e9m de aumentar o risco de trincas. A descarboneta\u00e7\u00e3o \u00e9 outra importante causa de falhas: quando aquecida sem v\u00e1cuo, em atmosfera neutra ou sem prote\u00e7\u00e3o de banho de sal, a superf\u00edcie perde carbono e permanece macia ap\u00f3s o endurecimento.<\/p>\n      <p>Erros de revenimento s\u00e3o especialmente dispendiosos. O a\u00e7o M2 requer m\u00faltiplos ciclos de revenimento, pois a transforma\u00e7\u00e3o da austenita retida e o revenimento da martensita fresca n\u00e3o podem ser conclu\u00eddos em um \u00fanico ciclo. Para um desempenho est\u00e1vel, a ferramenta deve resfriar at\u00e9 a temperatura ambiente entre os revenimentos.<\/p>\n\n      <div class=\"aobo-note-box\">\n        <p>A Aobo Steel fornece a\u00e7o r\u00e1pido M2 \/ DIN 1.3343 \/ JIS SKH51 na condi\u00e7\u00e3o recozida e n\u00e3o oferece servi\u00e7os de tratamento t\u00e9rmico final, como t\u00eampera, revenimento, tratamento subzero ou revenimento.<\/p>\n        <p>Os par\u00e2metros de tratamento t\u00e9rmico, os dados de dureza e as recomenda\u00e7\u00f5es de processo neste guia s\u00e3o fornecidos como refer\u00eancias gerais de suporte t\u00e9cnico para os clientes. Os resultados reais podem variar de acordo com a capacidade do forno, o tamanho da se\u00e7\u00e3o, a geometria da ferramenta, a condi\u00e7\u00e3o do a\u00e7o, a pr\u00e1tica de t\u00eampera, o controle da atmosfera e a aplica\u00e7\u00e3o final. Os procedimentos finais de tratamento t\u00e9rmico devem ser confirmados e validados pelo fornecedor de tratamento t\u00e9rmico do cliente antes da produ\u00e7\u00e3o.<\/p>\n      <\/div>\n\n      <section class=\"aobo-final-cta\">\n        <div>\n          <h2>Precisa de a\u00e7o r\u00e1pido M2 recozido para encomendas em grande quantidade?<\/h2>\n          <p>A Aobo Steel fornece barras redondas e chapas M2 \/ DIN 1.3343 \/ JIS SKH51 com certificados de f\u00e1brica e inspe\u00e7\u00e3o dimensional antes do envio.<\/p>\n        <\/div>\n        <div class=\"aobo-supply-actions\">\n          <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/pt\/m2-tool-steel\/\">Veja os detalhes de fornecimento do M2<\/a>\n        <\/div>\n      <\/section>\n    <\/main>\n  <\/div>\n<\/section>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/aobosteel.com\/pt\/h13-steel-heat-treatment\/\">Guia de Tratamento T\u00e9rmico H13 | Aobo Steel<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/420-stainless-steel-heat-treatment\/\">Guia de Tratamento T\u00e9rmico do A\u00e7o 420 | Endurecimento, T\u00eampera e Revenimento<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/h13-steel-hardness\/\">Dureza do a\u00e7o H13: Faixa HRC, tabela de revenimento e aplica\u00e7\u00f5es<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/h13-vs-h11-tool-steel\/\">A\u00e7o ferramenta H13 vs H11: desgaste t\u00e9rmico ou fissura\u00e7\u00e3o por impacto?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/s7-tool-steel-heat-treatment\/\">Guia de tratamento t\u00e9rmico do a\u00e7o ferramenta S7: temperatura, dureza e processo<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-faq\" class=\"wp-block-heading\">Perguntas frequentes<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1778225160324\"><strong class=\"schema-faq-question\">Qual \u00e9 o processo padr\u00e3o de tratamento t\u00e9rmico para o a\u00e7o ferramenta M2?<\/strong> <p class=\"schema-faq-answer\">O a\u00e7o ferramenta M2 \u00e9 geralmente tratado termicamente por meio de pr\u00e9-aquecimento duplo, austenitiza\u00e7\u00e3o, t\u00eampera e revenimento duplo ou triplo. Um processo comum utiliza um primeiro pr\u00e9-aquecimento a 540\u2013650 \u00b0C, um segundo pr\u00e9-aquecimento a 845\u2013870 \u00b0C, austenitiza\u00e7\u00e3o a 1190\u20131230 \u00b0C, t\u00eampera em \u00f3leo, ar ou banho de sal e revenimento a cerca de 538\u2013595 \u00b0C.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225180064\"><strong class=\"schema-faq-question\">Qual a dureza que o a\u00e7o ferramenta M2 pode atingir ap\u00f3s o tratamento t\u00e9rmico?<\/strong> <p class=\"schema-faq-answer\">Ap\u00f3s t\u00eampera e revenido adequados, o a\u00e7o ferramenta M2 normalmente atinge cerca de 60\u201365 HRC. A dureza final depende da temperatura de austenitiza\u00e7\u00e3o, do m\u00e9todo de t\u00eampera, da temperatura de revenido, da dimens\u00e3o da se\u00e7\u00e3o transversal e do controle do forno.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225180938\"><strong class=\"schema-faq-question\">Qual \u00e9 a temperatura de austenitiza\u00e7\u00e3o do a\u00e7o ferramenta M2?<\/strong> <p class=\"schema-faq-answer\">A temperatura padr\u00e3o de austenitiza\u00e7\u00e3o para o a\u00e7o ferramenta M2 geralmente fica entre 1190 e 1230 \u00b0C. Temperaturas mais baixas s\u00e3o utilizadas quando a tenacidade \u00e9 mais importante, enquanto temperaturas mais altas, pr\u00f3ximas a 1230 \u00b0C, s\u00e3o utilizadas quando se requer dureza m\u00e1xima, resist\u00eancia ao desgaste e dureza a quente.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225182490\"><strong class=\"schema-faq-question\">Por quanto tempo o a\u00e7o ferramenta M2 deve permanecer na temperatura de austenitiza\u00e7\u00e3o?<\/strong> <p class=\"schema-faq-answer\">O a\u00e7o ferramenta M2 deve ser mantido na temperatura de austenitiza\u00e7\u00e3o por um curto per\u00edodo, geralmente de 2 a 5 minutos ap\u00f3s a ferramenta atingir essa temperatura. Um per\u00edodo prolongado de austenitiza\u00e7\u00e3o pode causar crescimento de gr\u00e3os, excesso de austenita retida, redu\u00e7\u00e3o da tenacidade e instabilidade na dureza.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225183344\"><strong class=\"schema-faq-question\">O a\u00e7o ferramenta M2 pode ser temperado ao ar?<\/strong> <p class=\"schema-faq-answer\">Sim. O a\u00e7o M2 pode ser temperado ao ar, em \u00f3leo ou em banho de sal quente. A t\u00eampera ao ar \u00e9 mais suave e pode ajudar a reduzir a distor\u00e7\u00e3o, especialmente em se\u00e7\u00f5es menores. A t\u00eampera em \u00f3leo pode proporcionar uma resposta de dureza mais acentuada, enquanto a t\u00eampera em banho de sal oferece melhor equaliza\u00e7\u00e3o de temperatura e controle de distor\u00e7\u00e3o.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225223632\"><strong class=\"schema-faq-question\">Por que o a\u00e7o M2 precisa de t\u00eampera dupla ou tripla?<\/strong> <p class=\"schema-faq-answer\">O a\u00e7o M2 cont\u00e9m uma quantidade significativa de austenita retida ap\u00f3s a t\u00eampera. Durante o revenido e o resfriamento entre os revenidos, a austenita retida pode se transformar em martensita fresca. O segundo ou terceiro revenido \u00e9 necess\u00e1rio para revenir essa martensita fresca, reduzir a tens\u00e3o interna e estabilizar a dureza e a tenacidade finais.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225224577\"><strong class=\"schema-faq-question\">Qual \u00e9 a melhor temperatura de revenimento para o a\u00e7o ferramenta M2?<\/strong> <p class=\"schema-faq-answer\">Para muitas aplica\u00e7\u00f5es de corte e usinagem em a\u00e7o M2, o revenimento a 540\u2013565 \u00b0C \u00e9 comum, pois essa faixa de temperatura est\u00e1 pr\u00f3xima do pico de endurecimento secund\u00e1rio. Isso ajuda a equilibrar dureza, desempenho de corte, tenacidade e estabilidade dimensional.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225252503\"><strong class=\"schema-faq-question\">Por que o metal M2 deve ser temperado imediatamente ap\u00f3s o resfriamento brusco?<\/strong> <p class=\"schema-faq-answer\">O a\u00e7o M2 deve ser revenido imediatamente ap\u00f3s o resfriamento a cerca de 66\u201393 \u00b0C, pois a estrutura ap\u00f3s a t\u00eampera \u00e9 altamente tensionada e inst\u00e1vel. O revenido tardio pode aumentar o risco de fissuras, altera\u00e7\u00f5es dimensionais e instabilidade devido \u00e0 austenita retida.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778225253785\"><strong class=\"schema-faq-question\">Quais s\u00e3o as causas da baixa dureza ap\u00f3s o tratamento t\u00e9rmico M2?<\/strong> <p class=\"schema-faq-answer\">A baixa dureza pode resultar de aquecimento insuficiente, dissolu\u00e7\u00e3o inadequada dos carbonetos, t\u00eampera incorreta, excesso de austenita retida, descarboneta\u00e7\u00e3o ou revenido inadequado. Para o m\u00e9todo M2, tanto a temperatura quanto o tempo de perman\u00eancia devem ser cuidadosamente controlados, pois a faixa de tratamento t\u00e9rmico \u00e9 estreita.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>M2 Tool Steel Heat Treatment Guide M2 tool steel is heat-treated by double preheating, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or a salt bath, then double or triple tempering at 538\u2013595\u00b0C. Tempered correctly, M2 reaches about 60\u201365 HRC, with the high hardness, wear resistance, and red hardness expected from a high-speed steel. A typical [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15110,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"[]"},"class_list":["post-11688","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart<\/title>\n<meta name=\"description\" content=\"M2 heat treatment guide with preheating, austenitizing, quenching, tempering temperatures, and hardness chart. Learn how M2 reaches about 60\u201365 HRC.\" \/>\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\/pt\/m2-tool-steel-heat-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart\" \/>\n<meta property=\"og:description\" content=\"M2 heat treatment guide with preheating, austenitizing, quenching, tempering temperatures, and hardness chart. Learn how M2 reaches about 60\u201365 HRC.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/pt\/m2-tool-steel-heat-treatment\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-25T07:13:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"1254\" \/>\n\t<meta property=\"og:image:height\" content=\"1254\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data1\" content=\"13 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart\",\"datePublished\":\"2025-12-23T06:12:35+00:00\",\"dateModified\":\"2026-06-25T07:13:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/\"},\"wordCount\":2712,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/M2-heat-treatment-ad.avif\",\"inLanguage\":\"pt-BR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/\",\"name\":\"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/M2-heat-treatment-ad.avif\",\"datePublished\":\"2025-12-23T06:12:35+00:00\",\"dateModified\":\"2026-06-25T07:13:04+00:00\",\"description\":\"M2 heat treatment guide with preheating, austenitizing, quenching, tempering temperatures, and hardness chart. Learn how M2 reaches about 60\u201365 HRC.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225160324\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180064\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180938\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225182490\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225183344\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225223632\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225224577\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225252503\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225253785\"}],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/M2-heat-treatment-ad.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/M2-heat-treatment-ad.avif\",\"width\":1254,\"height\":1254},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/pt\\\/blog\\\/author\\\/admin\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225160324\",\"position\":1,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225160324\",\"name\":\"What is the standard heat treatment process for M2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"M2 tool steel is usually heat-treated by double preheating, austenitizing, quenching, and double- or triple-tempering. A common process uses first preheating at 540\u2013650\u00b0C, second preheating at 845\u2013870\u00b0C, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or salt bath, and tempering at about 538\u2013595\u00b0C.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180064\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180064\",\"name\":\"What hardness can M2 tool steel reach after heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"After proper hardening and tempering, M2 tool steel typically reaches about 60\u201365 HRC. The final hardness depends on the austenitizing temperature, quenching method, tempering temperature, section size, and furnace control.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180938\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225180938\",\"name\":\"What is the austenitizing temperature for M2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The standard austenitizing temperature for M2 tool steel is usually 1190\u20131230\u00b0C. Lower temperatures are used when toughness is more important, while higher temperatures near 1230\u00b0C are used when maximum hardness, wear resistance, and red hardness are required.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225182490\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225182490\",\"name\":\"How long should M2 tool steel be soaked at the austenitizing temperature?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"M2 tool steel should be soaked for only a short time at the austenitizing temperature, usually about 2\u20135 minutes after the tool reaches temperature. Long soaking can cause grain coarsening, excessive retained austenite, reduced toughness, and unstable hardness.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225183344\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225183344\",\"name\":\"Can M2 tool steel be air quenched?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. M2 can be quenched in air, oil, or a hot salt bath. Air quenching is milder and can help reduce distortion, especially for smaller sections. Oil quenching may give a stronger hardness response, while salt bath quenching offers better temperature equalization and distortion control.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225223632\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225223632\",\"name\":\"Why does M2 need double or triple tempering?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"M2 contains a significant amount of retained austenite after quenching. During tempering and cooling between tempers, retained austenite can transform into fresh martensite. The second or third temper is needed to temper this fresh martensite, reduce internal stress, and stabilize final hardness and toughness.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225224577\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225224577\",\"name\":\"What is the best tempering temperature for M2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For many M2 cutting and tooling applications, tempering at 540\u2013565\u00b0C is common because this range is near the secondary hardening peak. It helps balance hardness, cutting performance, toughness, and dimensional stability.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225252503\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225252503\",\"name\":\"Why should M2 be tempered immediately after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"M2 should be tempered immediately after cooling to about 66\u201393\u00b0C because the as-quenched structure is highly stressed and unstable. Delayed tempering can increase the risk of cracking, dimensional changes, and instability due to retained austenite.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225253785\",\"position\":9,\"url\":\"https:\\\/\\\/aobosteel.com\\\/m2-tool-steel-heat-treatment\\\/#faq-question-1778225253785\",\"name\":\"What causes low hardness after M2 heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Low hardness may result from underheating, insufficient carbide solution, incorrect quenching, excessive retained austenite, decarburization, or improper tempering. For M2, both temperature and soaking time must be carefully controlled because the heat-treatment window is narrow.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Tratamento t\u00e9rmico do a\u00e7o M2: t\u00eampera, revenido e tabela de dureza 60-65 HRC","description":"Guia de tratamento t\u00e9rmico M2 com temperaturas de pr\u00e9-aquecimento, austenitiza\u00e7\u00e3o, t\u00eampera, revenido e tabela de dureza. Aprenda como o M2 atinge cerca de 60\u201365 HRC.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/pt\/m2-tool-steel-heat-treatment\/","og_locale":"pt_BR","og_type":"article","og_title":"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart","og_description":"M2 heat treatment guide with preheating, austenitizing, quenching, tempering temperatures, and hardness chart. Learn how M2 reaches about 60\u201365 HRC.","og_url":"https:\/\/aobosteel.com\/pt\/m2-tool-steel-heat-treatment\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-06-25T07:13:04+00:00","og_image":[{"width":1254,"height":1254,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. tempo de leitura":"13 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart","datePublished":"2025-12-23T06:12:35+00:00","dateModified":"2026-06-25T07:13:04+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/"},"wordCount":2712,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif","inLanguage":"pt-BR"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/","url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/","name":"Tratamento t\u00e9rmico do a\u00e7o M2: t\u00eampera, revenido e tabela de dureza 60-65 HRC","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif","datePublished":"2025-12-23T06:12:35+00:00","dateModified":"2026-06-25T07:13:04+00:00","description":"Guia de tratamento t\u00e9rmico M2 com temperaturas de pr\u00e9-aquecimento, austenitiza\u00e7\u00e3o, t\u00eampera, revenido e tabela de dureza. Aprenda como o M2 atinge cerca de 60\u201365 HRC.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225160324"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180064"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180938"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225182490"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225183344"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225223632"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225224577"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225252503"},{"@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225253785"}],"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif","width":1254,"height":1254},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"M2 Steel Heat Treatment: Hardening, Tempering &amp; 60\u201365 HRC Chart"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"AoboSteel","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"AoboSteel","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"Evan","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225160324","position":1,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225160324","name":"Qual \u00e9 o processo padr\u00e3o de tratamento t\u00e9rmico para o a\u00e7o ferramenta M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"M2 tool steel is usually heat-treated by double preheating, austenitizing, quenching, and double- or triple-tempering. A common process uses first preheating at 540\u2013650\u00b0C, second preheating at 845\u2013870\u00b0C, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or salt bath, and tempering at about 538\u2013595\u00b0C.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180064","position":2,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180064","name":"Qual a dureza que o a\u00e7o ferramenta M2 pode atingir ap\u00f3s o tratamento t\u00e9rmico?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"After proper hardening and tempering, M2 tool steel typically reaches about 60\u201365 HRC. The final hardness depends on the austenitizing temperature, quenching method, tempering temperature, section size, and furnace control.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180938","position":3,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225180938","name":"Qual \u00e9 a temperatura de austenitiza\u00e7\u00e3o do a\u00e7o ferramenta M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The standard austenitizing temperature for M2 tool steel is usually 1190\u20131230\u00b0C. Lower temperatures are used when toughness is more important, while higher temperatures near 1230\u00b0C are used when maximum hardness, wear resistance, and red hardness are required.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225182490","position":4,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225182490","name":"Por quanto tempo o a\u00e7o ferramenta M2 deve permanecer na temperatura de austenitiza\u00e7\u00e3o?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"M2 tool steel should be soaked for only a short time at the austenitizing temperature, usually about 2\u20135 minutes after the tool reaches temperature. Long soaking can cause grain coarsening, excessive retained austenite, reduced toughness, and unstable hardness.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225183344","position":5,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225183344","name":"O a\u00e7o ferramenta M2 pode ser temperado ao ar?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. M2 can be quenched in air, oil, or a hot salt bath. Air quenching is milder and can help reduce distortion, especially for smaller sections. Oil quenching may give a stronger hardness response, while salt bath quenching offers better temperature equalization and distortion control.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225223632","position":6,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225223632","name":"Por que o a\u00e7o M2 precisa de t\u00eampera dupla ou tripla?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"M2 contains a significant amount of retained austenite after quenching. During tempering and cooling between tempers, retained austenite can transform into fresh martensite. The second or third temper is needed to temper this fresh martensite, reduce internal stress, and stabilize final hardness and toughness.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225224577","position":7,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225224577","name":"Qual \u00e9 a melhor temperatura de revenimento para o a\u00e7o ferramenta M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For many M2 cutting and tooling applications, tempering at 540\u2013565\u00b0C is common because this range is near the secondary hardening peak. It helps balance hardness, cutting performance, toughness, and dimensional stability.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225252503","position":8,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225252503","name":"Por que o metal M2 deve ser temperado imediatamente ap\u00f3s o resfriamento brusco?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"M2 should be tempered immediately after cooling to about 66\u201393\u00b0C because the as-quenched structure is highly stressed and unstable. Delayed tempering can increase the risk of cracking, dimensional changes, and instability due to retained austenite.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225253785","position":9,"url":"https:\/\/aobosteel.com\/m2-tool-steel-heat-treatment\/#faq-question-1778225253785","name":"Quais s\u00e3o as causas da baixa dureza ap\u00f3s o tratamento t\u00e9rmico M2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Low hardness may result from underheating, insufficient carbide solution, incorrect quenching, excessive retained austenite, decarburization, or improper tempering. For M2, both temperature and soaking time must be carefully controlled because the heat-treatment window is narrow.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"M2 Tool Steel Heat Treatment Guide M2 tool steel is heat-treated by double preheating, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or a salt bath, then double or triple tempering at 538\u2013595\u00b0C. Tempered correctly, M2 reaches about 60\u201365 HRC, with the high hardness, wear resistance, and red hardness expected from a high-speed steel. A typical&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/M2-heat-treatment-ad-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"M2 Tool Steel Heat Treatment Guide M2 tool steel is heat-treated by double preheating, austenitizing at 1190\u20131230\u00b0C, quenching in oil, air, or a salt bath, then double or triple tempering at 538\u2013595\u00b0C. Tempered correctly, M2 reaches about 60\u201365 HRC, with the high hardness, wear resistance, and red hardness expected from a high-speed steel. A typical&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/11688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/comments?post=11688"}],"version-history":[{"count":1,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/11688\/revisions"}],"predecessor-version":[{"id":16156,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/11688\/revisions\/16156"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/media\/15110"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/media?parent=11688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}