{"id":12240,"date":"2026-01-14T13:32:41","date_gmt":"2026-01-14T05:32:41","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=12240"},"modified":"2026-06-25T15:33:43","modified_gmt":"2026-06-25T07:33:43","slug":"s1-tool-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/s1-tool-steel-heat-treatment-guide\/","title":{"rendered":"Guia de Tratamento T\u00e9rmico do A\u00e7o Ferramenta S1"},"content":{"rendered":"<section class=\"aobo-s1-heat-treatment-page\">\n  <style>\n    .aobo-s1-heat-treatment-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-white: #ffffff;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      --aobo-page-width: 1180px;\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-s1-heat-treatment-page * {\n      box-sizing: border-box;\n    }\n\n    .aobo-wrap {\n      max-width: var(--aobo-page-width);\n      margin: 0 auto;\n      padding: 0;\n    }\n\n    .aobo-hero {\n      background: linear-gradient(135deg, #ffffff 0%, #f7fbff 58%, #eaf2ff 100%);\n      border: 1px solid var(--aobo-border);\n      border-radius: 26px;\n      padding: 42px 38px;\n      margin-bottom: 30px;\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: 1.06;\n      letter-spacing: 0;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero p {\n      max-width: 940px;\n      margin: 0;\n      font-size: 17px;\n      color: #314158;\n      position: relative;\n      z-index: 2;\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 30px;\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 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      align-items: center;\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      letter-spacing: 0;\n    }\n\n    .aobo-article h3 {\n      margin: 30px 0 10px;\n      color: #123f88;\n      font-size: 22px;\n      line-height: 1.3;\n      letter-spacing: 0;\n    }\n\n    .aobo-article p {\n      margin: 0 0 18px;\n      font-size: 17px;\n      color: var(--aobo-text);\n    }\n\n    .aobo-list {\n      margin: 0 0 20px;\n      padding-left: 22px;\n      color: var(--aobo-text);\n      font-size: 17px;\n    }\n\n    .aobo-list li {\n      margin: 0 0 10px;\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      border-collapse: collapse;\n      background: var(--aobo-white);\n      min-width: 760px;\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 {\n      margin: 24px 0 30px;\n      padding: 20px 22px;\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      box-shadow: 0 10px 24px rgba(12, 86, 208, 0.05);\n    }\n\n    .aobo-note h2 {\n      margin-top: 0;\n    }\n\n    .aobo-figure {\n      margin: 24px 0 30px;\n      padding: 18px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      background: var(--aobo-white);\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n    }\n\n    .aobo-figure img {\n      display: block;\n      width: 60%;\n      max-width: 100%;\n      height: auto;\n      margin: 0 auto;\n      border-radius: 12px;\n    }\n\n    .aobo-figure figcaption {\n      margin-top: 12px;\n      color: var(--aobo-muted);\n      font-size: 14px;\n      line-height: 1.55;\n      text-align: center;\n    }\n\n    .aobo-problem {\n      margin: 18px 0;\n      padding: 20px 22px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 16px;\n      background: #ffffff;\n      box-shadow: 0 10px 24px rgba(12, 86, 208, 0.05);\n    }\n\n    .aobo-problem h3 {\n      margin-top: 0;\n    }\n\n    .aobo-problem p {\n      margin-bottom: 0;\n    }\n\n    .aobo-cta {\n      margin-top: 34px;\n      padding: 32px 34px;\n      border-radius: 24px;\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-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-cta p {\n      margin: 0;\n      color: rgba(255, 255, 255, 0.92);\n      max-width: 820px;\n      font-size: 16px;\n    }\n\n    .aobo-btn {\n      display: inline-flex;\n      align-items: center;\n      justify-content: center;\n      text-align: center;\n      min-height: 42px;\n      padding: 10px 18px;\n      border-radius: 999px;\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      background: #ffffff;\n      border: 1px solid #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-btn:hover {\n      transform: translateY(-1px);\n      background: #fff7ed;\n      color: var(--aobo-blue-dark) !important;\n    }\n\n    .aobo-supply-block .aobo-btn {\n      background: var(--aobo-blue);\n      border-color: var(--aobo-blue);\n      color: #ffffff !important;\n    }\n\n    .aobo-supply-block .aobo-btn:hover {\n      background: var(--aobo-blue-dark);\n      color: #ffffff !important;\n    }\n\n    .aobo-supply-block .aobo-btn-detail {\n      background: #ffffff;\n      border-color: var(--aobo-border);\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-supply-block .aobo-btn-detail:hover {\n      background: var(--aobo-blue-soft);\n      border-color: var(--aobo-blue);\n      color: var(--aobo-blue-dark) !important;\n    }\n\n    @media (max-width: 760px) {\n      .aobo-hero {\n        padding: 30px 22px;\n        border-radius: 22px;\n      }\n\n      .aobo-article h2 {\n        font-size: 25px;\n      }\n\n      .aobo-article h3 {\n        font-size: 20px;\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-actions {\n        width: 100%;\n        flex-direction: column;\n        align-items: stretch;\n      }\n\n      .aobo-supply-actions .aobo-btn {\n        width: 100%;\n      }\n\n      .aobo-figure img {\n        width: 100%;\n      }\n\n      .aobo-cta {\n        padding: 26px 22px;\n        border-radius: 22px;\n      }\n\n      .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 do A\u00e7o Ferramenta S1<\/h1>\n      <p>O a\u00e7o ferramenta S1 (1.2550, SKS41) \u00e9 endurecido por pr\u00e9-aquecimento a cerca de 650 \u00b0C (1200 \u00b0F), austenitiza\u00e7\u00e3o a 900 \u00b0C a 955 \u00b0C (1650 \u00b0F a 1750 \u00b0F), t\u00eampera em \u00f3leo a 50 \u00b0C a 70 \u00b0C e revenimento imediato enquanto a pe\u00e7a ainda est\u00e1 quente. A dureza ap\u00f3s a t\u00eampera varia de 57 a 59 HRC, e um revenimento duplo entre 205 \u00b0C e 315 \u00b0C (400 \u00b0F e 600 \u00b0F) proporciona a alta tenacidade e resist\u00eancia ao choque pelas quais o S1 \u00e9 valorizado. Pe\u00e7as usinadas grosseiramente ou trabalhadas a frio devem ser submetidas a al\u00edvio de tens\u00f5es antes do endurecimento.<\/p>\n    <\/header>\n\n    <section class=\"aobo-supply-block\" aria-label=\"Consulta e detalhes do produto em a\u00e7o ferramenta S1\">\n      <div class=\"aobo-supply-image\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif\" alt=\"A\u00e7o ferramenta S1 fornecido pela Aobo Steel\" loading=\"lazy\">\n      <\/div>\n      <div class=\"aobo-supply-content\">\n        <p>A Aobo Steel fornece a\u00e7o ferramenta S1 (1.2550, SKS41) para aplica\u00e7\u00f5es resistentes a impactos. Envie-nos as dimens\u00f5es, a quantidade, a condi\u00e7\u00e3o e a aplica\u00e7\u00e3o desejadas para receber um or\u00e7amento.<\/p>\n        <div class=\"aobo-supply-actions\">\n          <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/s1-tool-steel\/\">Veja os detalhes do a\u00e7o ferramenta S1.<\/a>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n      <h2>Al\u00edvio do estresse<\/h2>\n      <p>O al\u00edvio de tens\u00f5es prepara os componentes S1 ap\u00f3s usinagem de desbaste ou trabalho a frio, reduzindo o risco de distor\u00e7\u00e3o e fissuras durante o endurecimento. As tens\u00f5es internas resultantes da usinagem, se n\u00e3o forem retidas, podem causar distor\u00e7\u00f5es microestruturais ou dimensionais severas quando a pe\u00e7a atinge a temperatura de endurecimento.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Temperatura de aquecimento:<\/strong> Aque\u00e7a uniformemente a uma temperatura entre 650\u00b0C e 675\u00b0C (1200\u00b0F e 1250\u00b0F).<\/li>\n        <li><strong>Tempo de imers\u00e3o:<\/strong> 1 hora por cada 25 mm (1 polegada) de espessura, com um m\u00ednimo de 1 hora.<\/li>\n        <li><strong>Resfriamento:<\/strong> Resfriamento lento por ar.<\/li>\n      <\/ul>\n\n      <h2>Pr\u00e9-aquecimento<\/h2>\n      <p>Para evitar choque t\u00e9rmico e deforma\u00e7\u00e3o excessiva, as pe\u00e7as frias S1 nunca devem ser colocadas diretamente em um forno j\u00e1 na temperatura de austenitiza\u00e7\u00e3o.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Temperatura de aquecimento:<\/strong> Aumente lentamente a temperatura para cerca de 650\u00b0C (1200\u00b0F).<\/li>\n        <li><strong>Deixe de molho:<\/strong> Mantenha pressionado at\u00e9 que a se\u00e7\u00e3o transversal esteja aquecida uniformemente.<\/li>\n      <\/ul>\n      <p>Para pe\u00e7as com geometria complexa ou grandes varia\u00e7\u00f5es na se\u00e7\u00e3o transversal, o pr\u00e9-aquecimento \u00e9 crucial. Ele sincroniza o aumento de temperatura entre o n\u00facleo e a superf\u00edcie durante o aquecimento final, o que reduz a tens\u00e3o t\u00e9rmica e evita fissuras.<\/p>\n\n      <h2>Austenitiza\u00e7\u00e3o (endurecimento)<\/h2>\n      <p>A austenitiza\u00e7\u00e3o \u00e9 a etapa de endurecimento do n\u00facleo. O aquecimento transforma a estrutura em austenita e dissolve os carbonetos na matriz. A temperatura de austenitiza\u00e7\u00e3o para S1 n\u00e3o deve ser nem muito alta nem muito baixa.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Temperatura de aquecimento:<\/strong> 900\u00b0C a 955\u00b0C (1650\u00b0F a 1750\u00b0F).<\/li>\n        <li><strong>Tempo de espera:<\/strong> De 15 a 45 minutos, ajustado de acordo com a espessura da se\u00e7\u00e3o, para que toda a se\u00e7\u00e3o transversal endure\u00e7a por completo.<\/li>\n        <li><strong>Atmosfera:<\/strong> Como o S1 apresenta apenas resist\u00eancia moderada \u00e0 descarboneta\u00e7\u00e3o, recomenda-se o aquecimento em atmosfera neutra controlada, v\u00e1cuo ou banho de sal neutro para evitar a oxida\u00e7\u00e3o superficial e a perda de carbono.<\/li>\n      <\/ul>\n\n      <h2>Resfriamento<\/h2>\n      <p>O a\u00e7o S1 \u00e9 um a\u00e7o de t\u00eampera em \u00f3leo. A t\u00eampera em \u00e1gua \u00e9 ocasionalmente utilizada para se\u00e7\u00f5es grandes ou simples, mas a t\u00eampera em \u00f3leo \u00e9 preferida devido \u00e0 sua melhor tenacidade e menor risco de fissura\u00e7\u00e3o.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Meio de resfriamento:<\/strong> \u00d3leo de t\u00eampera pr\u00e9-aquecido e em circula\u00e7\u00e3o.<\/li>\n        <li><strong>Procedimento:<\/strong> Resfrie rapidamente at\u00e9 que a pe\u00e7a atinja uma temperatura entre 50\u00b0C e 70\u00b0C (120\u00b0F e 160\u00b0F), momento em que ainda estar\u00e1 morna.<\/li>\n      <\/ul>\n      <p>Nunca deixe a pe\u00e7a esfriar at\u00e9 a temperatura ambiente antes do revenimento. A estrutura ap\u00f3s a t\u00eampera apresenta alta tens\u00e3o interna, e o revenimento tardio torna a condi\u00e7\u00e3o S1 altamente propensa \u00e0 fratura fr\u00e1gil espont\u00e2nea.<\/p>\n\n      <figure class=\"aobo-figure\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/S1-tool-steel-Isothermal-Transformation-Diagram.avif\" alt=\"diagrama de transforma\u00e7\u00e3o isot\u00e9rmica do a\u00e7o ferramenta S1\" loading=\"lazy\">\n        <figcaption>Diagrama de transforma\u00e7\u00e3o isot\u00e9rmica S1 para um grau com C 0,50%, Mn 0,25%, Si 0,75%, Cr 1,25%, V 0,20%, W 2,50%, austenitizado a 925\u00b0C (1695\u00b0F). Fonte: Uddeholm.<\/figcaption>\n      <\/figure>\n\n      <h2>T\u00eampera<\/h2>\n      <p>O revenimento deve ser feito imediatamente ap\u00f3s a t\u00eampera para restaurar a tenacidade e a ductilidade. O revenimento converte a estrutura temperada em martensita revenida, e a temperatura \u00e9 definida pela dureza desejada.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Tempo de imers\u00e3o:<\/strong> Pelo menos 2 horas por cada 25 mm (1 polegada) de espessura da se\u00e7\u00e3o.<\/li>\n        <li><strong>t\u00eampera secund\u00e1ria:<\/strong> Recomenda-se um segundo revenimento para remover a austenita retida inst\u00e1vel, melhorar a resist\u00eancia ao escoamento e as propriedades de impacto, e reduzir a probabilidade de distor\u00e7\u00e3o ou fissura\u00e7\u00e3o posteriores em servi\u00e7o.<\/li>\n        <li><strong>Resfriamento:<\/strong> Resfrie at\u00e9 a temperatura ambiente entre o primeiro e o segundo aquecimento.<\/li>\n      <\/ul>\n      <p>Dureza aproximada ap\u00f3s t\u00eampera em \u00f3leo de 900\u00b0C a 955\u00b0C (1650\u00b0F a 1750\u00b0F):<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>Temperatura de t\u00eampera<\/th><th>Dureza Aproximada (HRC)<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Como temperado<\/td><td>57 a 59<\/td><\/tr>\n            <tr><td>150\u00b0C (300\u00b0F)<\/td><td>56 a 58<\/td><\/tr>\n            <tr><td>205\u00b0C (400\u00b0F)<\/td><td>55 a 57<\/td><\/tr>\n            <tr><td>260\u00b0C (500\u00b0F)<\/td><td>54 a 56<\/td><\/tr>\n            <tr><td>315\u00b0C (600\u00b0F)<\/td><td>52 a 55<\/td><\/tr>\n            <tr><td>370\u00b0C (700\u00b0F)<\/td><td>50 a 53<\/td><\/tr>\n            <tr><td>425\u00b0C (800\u00b0F)<\/td><td>48 a 50<\/td><\/tr>\n            <tr><td>540\u00b0C (1000\u00b0F)<\/td><td>40 a 45<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>Para m\u00e1xima resist\u00eancia, como em cinz\u00e9is e pun\u00e7\u00f5es de alta resist\u00eancia, o a\u00e7o S1 geralmente \u00e9 temperado entre 205 \u00b0C e 315 \u00b0C (400 \u00b0F e 600 \u00b0F). Temperaturas de t\u00eampera mais altas podem ser usadas para condi\u00e7\u00f5es de servi\u00e7o mais quentes, mas a dureza diminui significativamente.<\/p>\n\n      <h2>Problemas comuns em tratamentos t\u00e9rmicos e suas solu\u00e7\u00f5es<\/h2>\n      <section class=\"aobo-problem\">\n        <h3>Resfriamento de rachaduras<\/h3>\n        <p>Duas causas predominam. A primeira \u00e9 o revenimento tardio, em que a pe\u00e7a permanece \u00e0 temperatura ambiente ap\u00f3s a t\u00eampera por tempo suficiente para que a tens\u00e3o exceda a resist\u00eancia do material. A segunda \u00e9 a concentra\u00e7\u00e3o de tens\u00e3o em cantos vivos, marcas de estampagem ou superf\u00edcies usinadas de forma grosseira. O revenimento deve ser imediato, transferindo a pe\u00e7a para o forno de revenimento enquanto ela ainda apresentar calor residual entre 50 \u00b0C e 70 \u00b0C. Nas fases de projeto e usinagem, utilize cantos arredondados em jun\u00e7\u00f5es cr\u00edticas e mantenha as superf\u00edcies com um alto grau de acabamento.<\/p>\n      <\/section>\n      <section class=\"aobo-problem\">\n        <h3>Baixa dureza<\/h3>\n        <p>As causas comuns s\u00e3o a descarboneta\u00e7\u00e3o superficial devido a uma atmosfera de austenitiza\u00e7\u00e3o inadequada, temperatura ou tempo de austenitiza\u00e7\u00e3o insuficientes e t\u00eampera deficiente causada por \u00f3leo muito quente ou com agita\u00e7\u00e3o inadequada.<\/p>\n      <\/section>\n      <section class=\"aobo-problem\">\n        <h3>Deforma\u00e7\u00e3o<\/h3>\n        <p>A deforma\u00e7\u00e3o geralmente resulta de choque t\u00e9rmico causado por aquecimento muito r\u00e1pido ou da libera\u00e7\u00e3o de tens\u00f5es residuais de usinagem durante o aquecimento. Pr\u00e9-aque\u00e7a a 650 \u00b0C antes da t\u00eampera, alivie as tens\u00f5es em pe\u00e7as com usinagem grosseira antes do resfriamento brusco e apoie pe\u00e7as longas ou complexas para evitar deforma\u00e7\u00f5es.<\/p>\n      <\/section>\n      <section class=\"aobo-problem\">\n        <h3>Camada macia descarbonizada<\/h3>\n        <p>Uma camada superficial macia se forma quando o oxig\u00eanio ou a umidade no forno reagem com o carbono da superf\u00edcie e o removem como mon\u00f3xido de carbono ou di\u00f3xido de carbono. Uma verifica\u00e7\u00e3o r\u00e1pida \u00e9 passar uma lima sobre a superf\u00edcie; se ela riscar facilmente, h\u00e1 uma camada macia presente. Para evitar isso, use um forno a v\u00e1cuo ou uma atmosfera de g\u00e1s inerte (nitrog\u00eanio ou arg\u00f4nio) para excluir o oxig\u00eanio, calibre os banhos de sal regularmente para mant\u00ea-los neutros e deixe uma margem de retifica\u00e7\u00e3o suficiente para que a camada descarbonetada possa ser removida ap\u00f3s o tratamento t\u00e9rmico.<\/p>\n      <\/section>\n\n      <section class=\"aobo-cta\">\n        <div>\n          <h2>Precisa de a\u00e7o ferramenta S1 para aplica\u00e7\u00f5es resistentes a impactos?<\/h2>\n          <p>O a\u00e7o ferramenta S1 (1.2550, SKS41) \u00e9 utilizado onde s\u00e3o necess\u00e1rias alta tenacidade e resist\u00eancia a impactos. Envie-nos as dimens\u00f5es, a quantidade, as condi\u00e7\u00f5es e a aplica\u00e7\u00e3o desejadas para recebermos um or\u00e7amento.<\/p>\n        <\/div>\n        <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\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\/s1-tool-steel\/\">A\u00e7o para ferramentas S1 | 1.2550<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/h11-tool-steel-heat-treatment\/\">Tabela de tratamento t\u00e9rmico e dureza do a\u00e7o ferramenta H11<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/s7-tool-steel-rockwell-hardness-chart\/\">Tabela de dureza Rockwell do a\u00e7o ferramenta S7 | HRC, HB e faixa de trabalho<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/o1-steel-hardness\/\">Dureza do a\u00e7o O1: Guia HRC para recozimento, t\u00eampera e revenido<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/pt\/h13-steel-heat-treatment\/\">Guia de Tratamento T\u00e9rmico H13 | Aobo Steel<\/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-1768368514600\"><strong class=\"schema-faq-question\">Qual \u00e9 a temperatura de endurecimento do a\u00e7o ferramenta S1?<\/strong> <p class=\"schema-faq-answer\">A temperatura de aquecimento para austenitiza\u00e7\u00e3o deve estar entre 900 \u00b0C e 955 \u00b0C (1650 \u00b0F e 1750 \u00b0F). Mantenha essa temperatura por 15 a 45 minutos, dependendo da espessura da pe\u00e7a, para garantir o endurecimento completo.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368531226\"><strong class=\"schema-faq-question\">Como realizar o al\u00edvio de tens\u00f5es em a\u00e7o ferramenta S1?<\/strong> <p class=\"schema-faq-answer\">Aque\u00e7a a pe\u00e7a uniformemente a 650 \u00b0C\u2013675 \u00b0C (1200 \u00b0F\u20131250 \u00b0F). Deixe atingir essa temperatura por 1 hora para cada 25 mm (1 polegada) de espessura (m\u00ednimo de 1 hora) e, em seguida, resfrie lentamente ao ar.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368533255\"><strong class=\"schema-faq-question\">Qual \u00e9 o m\u00e9todo de t\u00eampera recomendado para o a\u00e7o S1?<\/strong> <p class=\"schema-faq-answer\">O resfriamento em \u00f3leo \u00e9 fortemente recomendado para garantir a tenacidade ideal e minimizar o risco de trincas. Realize o resfriamento em \u00f3leo pr\u00e9-aquecido e em circula\u00e7\u00e3o at\u00e9 que a temperatura da pe\u00e7a caia para 50\u00b0C\u201370\u00b0C (120\u00b0F\u2013160\u00b0F).<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368534070\"><strong class=\"schema-faq-question\">Como prevenir fissuras de t\u00eampera no a\u00e7o S1?<\/strong> <p class=\"schema-faq-answer\">Ap\u00f3s a t\u00eampera, fa\u00e7a o revenimento da pe\u00e7a imediatamente, enquanto ela ainda estiver morna (50 \u00b0C a 70 \u00b0C); n\u00e3o a deixe esfriar at\u00e9 a temperatura ambiente. Al\u00e9m disso, certifique-se de que os projetos utilizem cantos arredondados em vez de pontos de tens\u00e3o agudos.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368534896\"><strong class=\"schema-faq-question\">Qual \u00e9 o processo de revenimento do a\u00e7o ferramenta S1?<\/strong> <p class=\"schema-faq-answer\">Revenimento imediato ap\u00f3s a t\u00eampera, com um tempo m\u00ednimo de perman\u00eancia de 2 horas por cada 25 mm (1 polegada) de espessura. Recomenda-se vivamente um revenimento secund\u00e1rio para obter a resist\u00eancia ao escoamento e a resist\u00eancia ao impacto ideais.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368535752\"><strong class=\"schema-faq-question\">Qual a dureza que o a\u00e7o ferramenta S1 pode atingir?<\/strong> <p class=\"schema-faq-answer\">Ap\u00f3s t\u00eampera em \u00f3leo, o a\u00e7o S1 normalmente atinge uma dureza de 57\u201359 HRC ap\u00f3s a t\u00eampera. O revenido a temperaturas entre 205\u00b0C (400\u00b0F) e 315\u00b0C (600\u00b0F) resulta em uma faixa de dureza de 52\u201357 HRC.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368604242\"><strong class=\"schema-faq-question\">Por que o pr\u00e9-aquecimento \u00e9 necess\u00e1rio para o a\u00e7o S1?<\/strong> <p class=\"schema-faq-answer\">O pr\u00e9-aquecimento a 650 \u00b0C (1200 \u00b0F) previne o choque t\u00e9rmico e a deforma\u00e7\u00e3o excessiva. Ele garante o aquecimento simult\u00e2neo do n\u00facleo e da superf\u00edcie durante a etapa final, reduzindo a tens\u00e3o t\u00e9rmica e o risco de fissuras em geometrias complexas.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768368605375\"><strong class=\"schema-faq-question\">Como evitar camadas moles ou descarboneta\u00e7\u00e3o no a\u00e7o S1?<\/strong> <p class=\"schema-faq-answer\">Aque\u00e7a o a\u00e7o em um forno a v\u00e1cuo, banho de sal neutro ou atmosfera neutra controlada para evitar a oxida\u00e7\u00e3o superficial. Caso ocorra descarboneta\u00e7\u00e3o, deixe uma toler\u00e2ncia suficiente para remover a camada afetada por esmerilhamento ap\u00f3s o tratamento t\u00e9rmico.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>S1 Tool Steel Heat Treatment Guide S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between [&hellip;]<\/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 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-12240","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>S1 Tool Steel Heat Treatment\u00a0Guide - AoboSteel<\/title>\n<meta name=\"description\" content=\"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.\" \/>\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\/s1-tool-steel-heat-treatment-guide\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S1 Tool Steel Heat Treatment\u00a0Guide\" \/>\n<meta property=\"og:description\" content=\"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/pt\/s1-tool-steel-heat-treatment-guide\/\" \/>\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=\"2026-06-25T07:33:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif\" \/>\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=\"6 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"S1 Tool Steel Heat Treatment\u00a0Guide\",\"datePublished\":\"2026-01-14T05:32:41+00:00\",\"dateModified\":\"2026-06-25T07:33:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\"},\"wordCount\":1214,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\",\"inLanguage\":\"pt-BR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\",\"name\":\"S1 Tool Steel Heat Treatment\u00a0Guide - AoboSteel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\",\"datePublished\":\"2026-01-14T05:32:41+00:00\",\"dateModified\":\"2026-06-25T07:33:43+00:00\",\"description\":\"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368514600\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368531226\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368533255\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368534070\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368534896\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368535752\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368604242\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368605375\"}],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"S1 Tool Steel Heat Treatment\u00a0Guide\"}]},{\"@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\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368514600\",\"position\":1,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368514600\",\"name\":\"What is the hardening temperature for S1 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The austenitizing heating temperature should be between 900\u00b0C and 955\u00b0C (1650\u00b0F and 1750\u00b0F). Hold this temperature for 15 to 45 minutes, depending on the workpiece thickness, to ensure complete through-hardening.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368531226\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368531226\",\"name\":\"How to perform stress relief on S1 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Heat the workpiece uniformly to 650\u00b0C\u2013675\u00b0C (1200\u00b0F\u20131250\u00b0F). Allow a soak time of 1 hour per 25 mm (1 inch) of thickness (minimum 1 hour), then cool slowly in air.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368533255\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368533255\",\"name\":\"What is the recommended quenching method for S1 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Oil quenching is strongly recommended to ensure optimal toughness and minimize cracking. Quench in preheated, circulating oil until the workpiece temperature drops to 50\u00b0C\u201370\u00b0C (120\u00b0F\u2013160\u00b0F).\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368534070\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368534070\",\"name\":\"How to prevent quenching cracks in S1 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Temper the workpiece immediately after quenching while it is still warm (50\u00b0C\u201370\u00b0C); do not let it cool to room temperature. Additionally, ensure designs use rounded corners rather than sharp stress points.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368534896\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368534896\",\"name\":\"What is the tempering process for S1 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Temper immediately after quenching with a minimum soak time of 2 hours per 25 mm (1 inch) of thickness. Secondary tempering is strongly recommended to achieve optimal yield strength and impact resistance.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368535752\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368535752\",\"name\":\"What hardness can S1 tool steel achieve?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"After oil quenching, S1 steel typically reaches an as-quenched hardness of 57\u201359 HRC. Tempering at temperatures between 205\u00b0C (400\u00b0F) and 315\u00b0C (600\u00b0F) results in a hardness range of 52\u201357 HRC.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368604242\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368604242\",\"name\":\"Why is preheating necessary for S1 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Preheating to 650\u00b0C (1200\u00b0F) prevents thermal shock and excessive deformation. It ensures synchronous core and surface heating during the final stage, reducing thermal stress and cracking risk for complex geometries.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368605375\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#faq-question-1768368605375\",\"name\":\"How to avoid soft layers or decarburization in S1 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Heat the steel in a vacuum furnace, neutral salt bath, or controlled neutral atmosphere to prevent surface oxidation. If decarburization occurs, leave sufficient tolerance to grind off the affected layer after heat treatment.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Guia de Tratamento T\u00e9rmico do A\u00e7o Ferramenta S1 - AoboSteel","description":"Domine o processo de tratamento t\u00e9rmico do a\u00e7o ferramenta S1. Aprenda as etapas avan\u00e7adas de al\u00edvio de tens\u00f5es, t\u00eampera (900-955 \u00b0C), resfriamento em \u00f3leo e revenimento para atingir uma dureza de 54-59 HRC. Previna trincas e otimize a tenacidade para ferramentas resistentes a impactos.","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\/s1-tool-steel-heat-treatment-guide\/","og_locale":"pt_BR","og_type":"article","og_title":"S1 Tool Steel Heat Treatment\u00a0Guide","og_description":"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.","og_url":"https:\/\/aobosteel.com\/pt\/s1-tool-steel-heat-treatment-guide\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-06-25T07:33:43+00:00","og_image":[{"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. tempo de leitura":"6 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"S1 Tool Steel Heat Treatment\u00a0Guide","datePublished":"2026-01-14T05:32:41+00:00","dateModified":"2026-06-25T07:33:43+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/"},"wordCount":1214,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","inLanguage":"pt-BR"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/","url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/","name":"Guia de Tratamento T\u00e9rmico do A\u00e7o Ferramenta S1 - AoboSteel","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","datePublished":"2026-01-14T05:32:41+00:00","dateModified":"2026-06-25T07:33:43+00:00","description":"Domine o processo de tratamento t\u00e9rmico do a\u00e7o ferramenta S1. Aprenda as etapas avan\u00e7adas de al\u00edvio de tens\u00f5es, t\u00eampera (900-955 \u00b0C), resfriamento em \u00f3leo e revenimento para atingir uma dureza de 54-59 HRC. Previna trincas e otimize a tenacidade para ferramentas resistentes a impactos.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368514600"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368531226"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368533255"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368534070"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368534896"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368535752"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368604242"},{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368605375"}],"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif"},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"S1 Tool Steel Heat Treatment\u00a0Guide"}]},{"@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\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368514600","position":1,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368514600","name":"Qual \u00e9 a temperatura de endurecimento do a\u00e7o ferramenta S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The austenitizing heating temperature should be between 900\u00b0C and 955\u00b0C (1650\u00b0F and 1750\u00b0F). Hold this temperature for 15 to 45 minutes, depending on the workpiece thickness, to ensure complete through-hardening.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368531226","position":2,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368531226","name":"Como realizar o al\u00edvio de tens\u00f5es em a\u00e7o ferramenta S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Heat the workpiece uniformly to 650\u00b0C\u2013675\u00b0C (1200\u00b0F\u20131250\u00b0F). Allow a soak time of 1 hour per 25 mm (1 inch) of thickness (minimum 1 hour), then cool slowly in air.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368533255","position":3,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368533255","name":"Qual \u00e9 o m\u00e9todo de t\u00eampera recomendado para o a\u00e7o S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Oil quenching is strongly recommended to ensure optimal toughness and minimize cracking. Quench in preheated, circulating oil until the workpiece temperature drops to 50\u00b0C\u201370\u00b0C (120\u00b0F\u2013160\u00b0F).","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368534070","position":4,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368534070","name":"Como prevenir fissuras de t\u00eampera no a\u00e7o S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Temper the workpiece immediately after quenching while it is still warm (50\u00b0C\u201370\u00b0C); do not let it cool to room temperature. Additionally, ensure designs use rounded corners rather than sharp stress points.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368534896","position":5,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368534896","name":"Qual \u00e9 o processo de revenimento do a\u00e7o ferramenta S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Temper immediately after quenching with a minimum soak time of 2 hours per 25 mm (1 inch) of thickness. Secondary tempering is strongly recommended to achieve optimal yield strength and impact resistance.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368535752","position":6,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368535752","name":"Qual a dureza que o a\u00e7o ferramenta S1 pode atingir?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"After oil quenching, S1 steel typically reaches an as-quenched hardness of 57\u201359 HRC. Tempering at temperatures between 205\u00b0C (400\u00b0F) and 315\u00b0C (600\u00b0F) results in a hardness range of 52\u201357 HRC.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368604242","position":7,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368604242","name":"Por que o pr\u00e9-aquecimento \u00e9 necess\u00e1rio para o a\u00e7o S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Preheating to 650\u00b0C (1200\u00b0F) prevents thermal shock and excessive deformation. It ensures synchronous core and surface heating during the final stage, reducing thermal stress and cracking risk for complex geometries.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368605375","position":8,"url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#faq-question-1768368605375","name":"Como evitar camadas moles ou descarboneta\u00e7\u00e3o no a\u00e7o S1?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Heat the steel in a vacuum furnace, neutral salt bath, or controlled neutral atmosphere to prevent surface oxidation. If decarburization occurs, leave sufficient tolerance to grind off the affected layer after heat treatment.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"S1 Tool Steel Heat Treatment Guide S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between&hellip;","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"S1 Tool Steel Heat Treatment Guide S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/12240","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=12240"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/12240\/revisions"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/media?parent=12240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}