{"id":15614,"date":"2026-05-22T16:17:03","date_gmt":"2026-05-22T08:17:03","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15614"},"modified":"2026-06-25T15:32:12","modified_gmt":"2026-06-25T07:32:12","slug":"s-series-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/s-series-tool-steel\/","title":{"rendered":"A\u00e7o ferramenta da s\u00e9rie S | Guia de a\u00e7o ferramenta resistente a impactos"},"content":{"rendered":"<section class=\"aobo-s-series-page\">\n\n  <style>\n    .aobo-s-series-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-blue-line: #c9dcff;\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      font-family: Arial, Helvetica, sans-serif;\n      color: var(--aobo-text);\n      line-height: 1.7;\n      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border-color: #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    @media (max-width: 980px) {\n      .aobo-product-grid {\n        grid-template-columns: repeat(2, minmax(0, 1fr));\n      }\n    }\n\n    @media (max-width: 620px) {\n      .aobo-wrap {\n        padding: 0;\n      }\n\n      .aobo-hero {\n        padding: 30px 22px;\n      }\n\n      .aobo-product-grid {\n        grid-template-columns: 1fr;\n      }\n\n      .aobo-product-strip {\n        padding: 20px;\n      }\n\n      .aobo-buttons {\n        flex-direction: column;\n      }\n\n      .aobo-article h2 {\n        font-size: 25px;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-wrap\">\n\n    <header class=\"aobo-hero\">\n      <span class=\"aobo-eyebrow\">Guia de a\u00e7o ferramenta resistente a choques<\/span>\n      <h1>A\u00e7o ferramenta da s\u00e9rie S<\/h1>\n      <p>\n        O a\u00e7o ferramenta da s\u00e9rie S \u00e9 o grupo resistente a choques no sistema de classifica\u00e7\u00e3o de a\u00e7os ferramenta AISI. A designa\u00e7\u00e3o &quot;S&quot; refere-se \u00e0 resist\u00eancia a choques, o que torna esses a\u00e7os adequados para ferramentas expostas a impactos repetidos, cargas repentinas, lascamento, fissuras ou quebras.\n      <\/p>\n    <\/header>\n\n    <section class=\"aobo-product-strip\" aria-label=\"A\u00e7os para ferramentas da s\u00e9rie S dispon\u00edveis na Aobo Steel.\">\n      <h2>A\u00e7os para ferramentas da s\u00e9rie S dispon\u00edveis na Aobo Steel.<\/h2>\n      <p class=\"aobo-strip-intro\">\n        A Aobo Steel fornece a\u00e7o ferramenta resistente a choques da s\u00e9rie S em barras redondas e planas a granel para compradores de ferramentas industriais, distribuidores, armazenistas e empresas de usinagem.\n      <\/p>\n\n      <div class=\"aobo-product-grid\">\n        <article class=\"aobo-product-card\">\n          <div class=\"aobo-product-image\">\n            <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif\" alt=\"Barra de a\u00e7o ferramenta S1\" loading=\"lazy\" decoding=\"async\">\n          <\/div>\n          <h3>S1 | 1,2550<\/h3>\n          <p class=\"aobo-card-note\">A\u00e7o ferramenta resistente a choques para aplica\u00e7\u00f5es que podem exigir resist\u00eancia a impactos, dureza a quente moderada ou op\u00e7\u00f5es de endurecimento superficial.<\/p>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/s1-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div class=\"aobo-product-image\">\n            <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/S7.webp\" alt=\"Barra de a\u00e7o ferramenta S7\" loading=\"lazy\" decoding=\"async\">\n          <\/div>\n          <h3>S7 | 1,2355<\/h3>\n          <p class=\"aobo-card-note\">A\u00e7o ferramenta amplamente utilizado, resistente a choques, com comportamento de endurecimento ao ar, boa temperabilidade e melhor estabilidade dimensional.<\/p>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/s7-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n\n      <p>\n        O a\u00e7o ferramenta da s\u00e9rie S \u00e9 o grupo resistente a choques no sistema de classifica\u00e7\u00e3o de a\u00e7os ferramenta AISI. A designa\u00e7\u00e3o &quot;S&quot; refere-se \u00e0 resist\u00eancia a choques, o que torna esses a\u00e7os adequados para ferramentas expostas a impactos repetidos, cargas repentinas, lascamento, fissuras ou quebras.\n      <\/p>\n      <p>\n        Ao contr\u00e1rio dos a\u00e7os-ferramenta para trabalho a frio com alto teor de carbono, os a\u00e7os da s\u00e9rie S n\u00e3o s\u00e3o projetados principalmente para m\u00e1xima resist\u00eancia ao desgaste abrasivo. Eles geralmente utilizam uma faixa de carbono mais baixa e uma matriz mais resistente, tratada termicamente, permitindo que a ferramenta absorva a energia do impacto em vez de falhar repentinamente.\n      <\/p>\n      <p>\n        A maioria dos a\u00e7os da s\u00e9rie S cont\u00e9m combina\u00e7\u00f5es de sil\u00edcio, mangan\u00eas, cromo, molibd\u00eanio, tungst\u00eanio ou van\u00e1dio. Esses elementos de liga controlam a temperabilidade, a resposta ao revenido, a resist\u00eancia, a tenacidade e a resist\u00eancia ao calor. Como a composi\u00e7\u00e3o da liga varia de acordo com a classe, os a\u00e7os S1, S2, S5 e S7 podem apresentar comportamentos muito diferentes durante o tratamento t\u00e9rmico e em servi\u00e7o.\n      <\/p>\n      <p>\n        Entre as classes comuns da s\u00e9rie S, a S7 \u00e9 amplamente utilizada por combinar alta resist\u00eancia a impactos, comportamento de endurecimento ao ar e melhor estabilidade dimensional. A S5 \u00e9 frequentemente usada em ferramentas de alto impacto. A S1 pode ser selecionada quando se necessita de resist\u00eancia a impactos e dureza a quente moderada. A S2 \u00e9 mais adequada para ferramentas espec\u00edficas que exigem uma camada externa dura e um n\u00facleo resistente.\n      <\/p>\n      <p>\n        As aplica\u00e7\u00f5es t\u00edpicas incluem cinz\u00e9is, pun\u00e7\u00f5es, l\u00e2minas de corte, ferramentas de rebitagem, rompedores de concreto, ferramentas de moldagem e algumas ferramentas para trabalhos a quente em temperaturas moderadas.\n      <\/p>\n\n      <h2>Por que o a\u00e7o ferramenta da s\u00e9rie S \u00e9 usado para resist\u00eancia a choques?<\/h2>\n      <p>\n        A resist\u00eancia ao choque do a\u00e7o ferramenta da s\u00e9rie S prov\u00e9m de sua composi\u00e7\u00e3o qu\u00edmica e microestrutura tratada termicamente.\n      <\/p>\n      <p>\n        O teor de carbono geralmente varia entre 0,40% e 0,65%. Essa faixa permite que o a\u00e7o desenvolva alta resist\u00eancia ap\u00f3s t\u00eampera e revenido, limitando a forma\u00e7\u00e3o de carbonetos grandes e fr\u00e1geis. Carbonetos grandes melhoram a resist\u00eancia \u00e0 abras\u00e3o, mas tamb\u00e9m podem se tornar pontos de inicia\u00e7\u00e3o de trincas sob cargas de impacto.\n      <\/p>\n      <p>\n        Os elementos de liga ajustam as propriedades do a\u00e7o. O sil\u00edcio melhora a resist\u00eancia ao revenimento. Cromo, molibd\u00eanio, mangan\u00eas, tungst\u00eanio e van\u00e1dio podem melhorar a temperabilidade, a resist\u00eancia mec\u00e2nica, a dureza a quente ou a resist\u00eancia ao desgaste, dependendo da classe do a\u00e7o.\n      <\/p>\n      <p>\n        Ap\u00f3s tratamento t\u00e9rmico adequado, os a\u00e7os da s\u00e9rie S formam uma estrutura martens\u00edtica resistente com carbonetos finos. Essa estrutura \u00e9 mais adequada para absorver impactos repetidos do que uma estrutura rica em carbonetos. Essa \u00e9 a raz\u00e3o metal\u00fargica pela qual os a\u00e7os da s\u00e9rie S s\u00e3o usados em ferramentas sujeitas a impacto.\n      <\/p>\n\n      <h2>Principais propriedades do a\u00e7o ferramenta da s\u00e9rie S<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Propriedade<\/th>\n              <th>Caracter\u00edsticas do a\u00e7o ferramenta da s\u00e9rie S<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Robustez<\/td><td>Alto a muito alto. Esta \u00e9 a propriedade que define o grupo.<\/td><\/tr>\n            <tr><td>Dureza<\/td><td>Selecionado de acordo com a carga da ferramenta, a classe e as condi\u00e7\u00f5es do tratamento t\u00e9rmico.<\/td><\/tr>\n            <tr><td>Resist\u00eancia ao desgaste<\/td><td>A\u00e7os para ferramentas de trabalho a frio com baixo a m\u00e9dio teor de carbono em compara\u00e7\u00e3o com a\u00e7os de alto teor de carbono.<\/td><\/tr>\n            <tr><td>Temperabilidade<\/td><td>Varia conforme a classe. S2 tem endurecimento superficial; S7 tem endurecimento muito mais profundo.<\/td><\/tr>\n            <tr><td>Estabilidade dimensional<\/td><td>Fortemente influenciado pelo m\u00e9todo de t\u00eampera. Os a\u00e7os endurecidos ao ar geralmente s\u00e3o mais est\u00e1veis.<\/td><\/tr>\n            <tr><td>Resist\u00eancia ao calor<\/td><td>Algumas classes de a\u00e7o podem trabalhar em condi\u00e7\u00f5es moderadas de alta temperatura, at\u00e9 cerca de 1000\u00b0F a 1050\u00b0F, ou 540\u00b0C a 565\u00b0C.<\/td><\/tr>\n            <tr><td>Usinabilidade<\/td><td>Geralmente moderado em condi\u00e7\u00e3o recozida.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>A\u00e7o ferramenta da s\u00e9rie S vs. <a href=\"https:\/\/aobosteel.com\/pt\/d-series-tool-steels\/\">A\u00e7o ferramenta S\u00e9rie D<\/a><\/h2>\n      <p>\n        A principal diferen\u00e7a na sele\u00e7\u00e3o reside no modo de falha.\n      <\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Item de compara\u00e7\u00e3o<\/th>\n              <th>A\u00e7o ferramenta da s\u00e9rie S<\/th>\n              <th>A\u00e7o ferramenta S\u00e9rie D<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>tipo a\u00e7o ferramenta<\/td><td>A\u00e7o ferramenta resistente a choques<\/td><td>A\u00e7o para ferramentas de trabalho a frio com alto teor de carbono e alto teor de cromo<\/td><\/tr>\n            <tr><td>Objetivo principal<\/td><td>Resist\u00eancia sob impacto<\/td><td>Resist\u00eancia ao desgaste e reten\u00e7\u00e3o de fio<\/td><\/tr>\n            <tr><td>Dire\u00e7\u00e3o do carbono<\/td><td>Menor teor de carbono do que a s\u00e9rie D<\/td><td>Alto teor de carbono<\/td><\/tr>\n            <tr><td>Estrutura de carboneto<\/td><td>Menos carbonetos grosseiros<\/td><td>Alto volume de carbonetos duros ricos em cromo<\/td><\/tr>\n            <tr><td>Robustez<\/td><td>Mais alto<\/td><td>Inferior<\/td><\/tr>\n            <tr><td>resist\u00eancia ao desgaste abrasivo<\/td><td>Inferior<\/td><td>Mais alto<\/td><\/tr>\n            <tr><td>Comportamento do tratamento t\u00e9rmico<\/td><td>Depende muito da qualidade: endurecimento em \u00e1gua, \u00f3leo ou ar.<\/td><td>Muitas classes de a\u00e7o s\u00e3o de endurecimento ao ar, exceto classes como a D3.<\/td><\/tr>\n            <tr><td>Uso t\u00edpico<\/td><td>Cinz\u00e9is, pun\u00e7\u00f5es, l\u00e2minas de corte, ferramentas de impacto<\/td><td>Matrizes de estampagem, facas de corte longitudinal, matrizes de conforma\u00e7\u00e3o, ferramentas de desgaste<\/td><\/tr>\n            <tr><td>Melhor escolha quando<\/td><td>A ferramenta quebra, lasca ou racha.<\/td><td>A ferramenta se desgasta principalmente<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>Tratamento t\u00e9rmico do a\u00e7o ferramenta da s\u00e9rie S<\/h2>\n      <p>\n        O tratamento t\u00e9rmico do a\u00e7o ferramenta da s\u00e9rie S deve controlar quatro riscos: descarboneta\u00e7\u00e3o superficial, grafitiza\u00e7\u00e3o, fissura\u00e7\u00e3o por t\u00eampera e fragilidade excessiva.\n      <\/p>\n      <p>\n        Muitos a\u00e7os da s\u00e9rie S cont\u00eam sil\u00edcio. Durante o aquecimento, uma atmosfera inadequada no forno pode causar a descarboneta\u00e7\u00e3o da superf\u00edcie. Uma superf\u00edcie descarbonetada perde carbono e torna-se mais fr\u00e1gil que o n\u00facleo. Isso pode reduzir a resist\u00eancia \u00e0 fadiga, a resist\u00eancia das bordas e a vida \u00fatil.\n      <\/p>\n      <p>\n        A\u00e7os com alto teor de sil\u00edcio tamb\u00e9m podem sofrer grafitiza\u00e7\u00e3o se superaquecidos ou mantidos em altas temperaturas por muito tempo. Isso danifica a estrutura do a\u00e7o e reduz a confiabilidade em servi\u00e7o. O aquecimento em atmosfera controlada, v\u00e1cuo ou banho de sal neutro \u00e9 prefer\u00edvel quando a qualidade da superf\u00edcie \u00e9 importante.\n      <\/p>\n      <p>\n        O procedimento usual de tratamento t\u00e9rmico \u00e9 mostrado abaixo.\n      <\/p>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Est\u00e1gio de tratamento t\u00e9rmico<\/th>\n              <th>Finalidade<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Recozimento<\/td><td>Produz uma estrutura macia e uniforme para usinagem.<\/td><\/tr>\n            <tr><td>Pr\u00e9-aquecimento<\/td><td>Reduz o choque t\u00e9rmico antes da austenitiza\u00e7\u00e3o.<\/td><\/tr>\n            <tr><td>Austenitiza\u00e7\u00e3o<\/td><td>Prepara o a\u00e7o para o endurecimento.<\/td><\/tr>\n            <tr><td>Resfriamento<\/td><td>Endurece o a\u00e7o de acordo com a classe e a dimens\u00e3o da se\u00e7\u00e3o.<\/td><\/tr>\n            <tr><td>T\u00eampera<\/td><td>Reduz a fragilidade e define o equil\u00edbrio final entre dureza e tenacidade.<\/td><\/tr>\n            <tr><td>t\u00eampera dupla<\/td><td>Frequentemente utilizado em classes como S5 e S7 para melhorar a estabilidade e a resist\u00eancia.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        O m\u00e9todo de t\u00eampera \u00e9 uma das maiores diferen\u00e7as entre os a\u00e7os da classe S.\n      <\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>M\u00e9todo de resfriamento<\/th>\n              <th>Significado t\u00edpico<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>resfriamento com \u00e1gua<\/td><td>Resfriamento r\u00e1pido, alto efeito de endurecimento, maior risco de fissuras e deforma\u00e7\u00f5es.<\/td><\/tr>\n            <tr><td>t\u00eampera de \u00f3leo<\/td><td>Mais seguro do que o resfriamento em \u00e1gua e comum para a\u00e7os de dureza m\u00e9dia.<\/td><\/tr>\n            <tr><td>Endurecimento ao ar<\/td><td>Melhoria da estabilidade dimensional e redu\u00e7\u00e3o do risco de fissura\u00e7\u00e3o por t\u00eampera em se\u00e7\u00f5es transversais adequadas.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <div class=\"aobo-note-box\">\n        <p>\n          Os intervalos a seguir devem ser considerados como valores de refer\u00eancia t\u00edpicos, e n\u00e3o como substitutos da ficha t\u00e9cnica de tratamento t\u00e9rmico do fabricante de a\u00e7o. A pr\u00e1tica final deve levar em conta o tamanho da ferramenta, o tipo de forno, a prote\u00e7\u00e3o da superf\u00edcie, a espessura da se\u00e7\u00e3o e a dureza de trabalho necess\u00e1ria.\n        <\/p>\n      <\/div>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Grau<\/th>\n              <th>Pr\u00e9-aquecimento t\u00edpico<\/th>\n              <th>Faixa de austenitiza\u00e7\u00e3o<\/th>\n              <th>M\u00e9todo de resfriamento<\/th>\n              <th>Dire\u00e7\u00e3o t\u00edpica de revenimento\/endurecimento<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>S1<\/td>\n              <td>~1200\u00b0F \/ 650\u00b0C<\/td>\n              <td>1650\u20131750\u00b0F \/ 900\u2013955\u00b0C<\/td>\n              <td>Resfriamento de \u00f3leo<\/td>\n              <td>Revenimento a 205\u2013650 \u00b0C (400\u20131200 \u00b0F). A dureza de trabalho pode variar de cerca de 58 HRC a 40 HRC, dependendo da temperatura de revenimento.<\/td>\n            <\/tr>\n            <tr>\n              <td>S5<\/td>\n              <td>~1400\u00b0F \/ 760\u00b0C<\/td>\n              <td>1600\u20131695\u00b0F \/ 870\u2013925\u00b0C<\/td>\n              <td>Resfriamento de \u00f3leo<\/td>\n              <td>Recomenda-se t\u00eampera dupla. Uma dureza de cerca de 40\u201344 HRC \u00e9 t\u00edpica para aplica\u00e7\u00f5es de choque m\u00e1ximo.<\/td>\n            <\/tr>\n            <tr>\n              <td>S7<\/td>\n              <td>1200\u20131300\u00b0F \/ 650\u2013705\u00b0C<\/td>\n              <td>1695\u20131750\u00b0F \/ 925\u2013955\u00b0C<\/td>\n              <td>Resfriamento a ar em se\u00e7\u00f5es adequadas<\/td>\n              <td>A t\u00eampera dupla a 482\u2013516 \u00b0C (900\u2013960 \u00b0F) \u00e9 comumente utilizada. A dureza final fica em torno de 58\u201360 HRC nessa faixa de temperatura.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        O a\u00e7o S7 \u00e9 comumente tratado como um a\u00e7o ferramenta resistente a choques e endurec\u00edvel ao ar. \u00c9 frequentemente preferido para ferramentas que necessitam de maior estabilidade dimensional ou que possuem formatos mais complexos. O a\u00e7o S5 \u00e9 geralmente temperado em \u00f3leo. O a\u00e7o S2 geralmente apresenta maior risco de tratamento t\u00e9rmico devido \u00e0 sua maior rapidez de t\u00eampera.\n      <\/p>\n      <p>\n        O revenimento deve ser feito imediatamente ap\u00f3s a t\u00eampera. Os a\u00e7os-ferramenta resistentes a choques n\u00e3o devem permanecer no estado em que foram temperados. Em toda a s\u00e9rie S e em suas diversas aplica\u00e7\u00f5es, a dureza final de trabalho geralmente se situa em uma ampla faixa de aproximadamente 40 a 60 HRC.\n      <\/p>\n\n      <h2>Aplica\u00e7\u00f5es do a\u00e7o ferramenta da s\u00e9rie S<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>\u00c1rea de aplica\u00e7\u00e3o<\/th>\n              <th>Ferramentas t\u00edpicas<\/th>\n              <th>Principal risco de falha<\/th>\n              <th>Dire\u00e7\u00e3o adequada da s\u00e9rie S<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Ferramentas de percuss\u00e3o e de ataque<\/td><td>Cinz\u00e9is manuais, cinz\u00e9is pneum\u00e1ticos, conjuntos de rebites, rompedores de concreto<\/td><td>Fratura por impacto, deforma\u00e7\u00e3o em forma de cogumelo, quebra<\/td><td>S5, S7, S2<\/td><\/tr>\n            <tr><td>Perfura\u00e7\u00e3o de alta resist\u00eancia<\/td><td>Pun\u00e7\u00f5es a frio, pun\u00e7\u00f5es de cabe\u00e7alho, pinos de nocaute<\/td><td>Rachaduras por pun\u00e7\u00e3o, lascas nas bordas, carga repentina<\/td><td>S7, S5<\/td><\/tr>\n            <tr><td>Ferramentas de corte<\/td><td>L\u00e2minas de corte, cortadores a frio, cortadores de tubos<\/td><td>lascamento de borda e carga de impacto<\/td><td>S7, S5<\/td><\/tr>\n            <tr><td>Ferramentas de conforma\u00e7\u00e3o e prensagem<\/td><td>Matrizes de dobra, matrizes de cunhagem, matrizes de conforma\u00e7\u00e3o<\/td><td>Tens\u00e3o localizada, fissura\u00e7\u00e3o, carga repetida<\/td><td>S7, S5<\/td><\/tr>\n            <tr><td>Trabalho a quente moderado<\/td><td>Pun\u00e7\u00f5es a quente, l\u00e2minas de corte a quente, insertos de forjamento<\/td><td>Amolecimento, fissuras, tens\u00e3o termomec\u00e2nica<\/td><td>S1, S7<\/td><\/tr>\n            <tr><td>Suporte para moldagem e ferramentas de pl\u00e1stico<\/td><td>Componentes de moldes, fresas-mestre, insertos de ferramentas<\/td><td>Resist\u00eancia, polimento e estabilidade dimensional<\/td><td>S7<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>Como escolher o a\u00e7o ferramenta da s\u00e9rie S<\/h2>\n      <p>\n        Ap\u00f3s decidir que um a\u00e7o da s\u00e9rie S \u00e9 adequado, o pr\u00f3ximo passo \u00e9 escolher a classe correta. A escolha depende da estabilidade dimensional, do m\u00e9todo de t\u00eampera, da dimens\u00e3o da se\u00e7\u00e3o transversal, da temperatura de trabalho e do desempenho superficial exigido.\n      <\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Necessidade de sele\u00e7\u00e3o<\/th>\n              <th>Melhor Dire\u00e7\u00e3o de Notas<\/th>\n              <th>Raz\u00e3o<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Melhor estabilidade dimensional<\/td><td>S7<\/td><td>O comportamento de endurecimento ao ar reduz o risco de distor\u00e7\u00e3o em se\u00e7\u00f5es adequadas.<\/td><\/tr>\n            <tr><td>Formato complexo da ferramenta ou cantos afiados<\/td><td>S7<\/td><td>Endurecimento mais seguro do que o obtido com a\u00e7os temperados em \u00e1gua.<\/td><\/tr>\n            <tr><td>Ferramentas gerais de impacto pesado<\/td><td>S5 ou S7<\/td><td>Ambos s\u00e3o usados em ferramentas sujeitas a impactos; o S7 oferece maior seguran\u00e7a devido ao endurecimento.<\/td><\/tr>\n            <tr><td>Ferramentas de impacto com endurecimento por \u00f3leo<\/td><td>S5<\/td><td>Indicado para aplica\u00e7\u00f5es onde o resfriamento r\u00e1pido do \u00f3leo e a economia s\u00e3o importantes.<\/td><\/tr>\n            <tr><td>Aplica\u00e7\u00f5es moderadas de choque em trabalhos a quente<\/td><td>S1 ou S7<\/td><td>Essas classes oferecem melhor resist\u00eancia ao amolecimento em temperaturas elevadas.<\/td><\/tr>\n            <tr><td>Melhor resist\u00eancia ao desgaste da superf\u00edcie com n\u00facleo robusto.<\/td><td>S1<\/td><td>A classe S1 pode ser considerada em situa\u00e7\u00f5es onde a cementa\u00e7\u00e3o ou o endurecimento superficial sejam \u00fateis.<\/td><\/tr>\n            <tr><td>Ferramentas simples que precisam de um estojo r\u00edgido e um n\u00facleo resistente.<\/td><td>S2<\/td><td>Mais adequado para formas simples, pois o resfriamento mais r\u00e1pido aumenta o risco de danos ao tratamento t\u00e9rmico.<\/td><\/tr>\n            <tr><td>Ferramentas de grande se\u00e7\u00e3o transversal<\/td><td>S7 ou classes de endurecimento profundo<\/td><td>A temperabilidade deve ser suficiente em toda a se\u00e7\u00e3o transversal.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        Para a maioria das ferramentas de resist\u00eancia a choques em geral, o a\u00e7o S7 costuma ser a primeira op\u00e7\u00e3o a ser avaliada, pois combina tenacidade, temperabilidade e estabilidade dimensional. O a\u00e7o S5 continua sendo \u00fatil para ferramentas de impacto de alta resist\u00eancia, onde a t\u00eampera em \u00f3leo \u00e9 aceit\u00e1vel. O a\u00e7o S1 \u00e9 adequado para aplica\u00e7\u00f5es que exigem resist\u00eancia a choques, com op\u00e7\u00f5es de dureza a quente moderada ou t\u00eampera superficial. O a\u00e7o S2 deve ser usado com mais cautela, pois seus requisitos de t\u00eampera limitam a complexidade dos projetos de ferramentas.\n      <\/p>\n\n    <\/main>\n\n    <section class=\"aobo-final-cta\">\n      <div>\n        <h2>Precisa de fornecimento em grande quantidade de a\u00e7o ferramenta da s\u00e9rie S?<\/h2>\n        <p>\n          A Aobo Steel fornece barras redondas e barras chatas de a\u00e7o ferramenta S1, S7 e outros a\u00e7os resistentes a impactos para grandes encomendas industriais. Envie-nos a especifica\u00e7\u00e3o, o tamanho, a quantidade e a aplica\u00e7\u00e3o desejadas.\n        <\/p>\n      <\/div>\n      <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n    <\/section>\n\n  <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Shock-Resisting Tool Steel Guide S Series Tool Steel S series tool steel is the shock-resisting group in the AISI tool steel classification system. The \u201cS\u201d designation refers to shock resistance, which makes these steels suitable for tools exposed to repeated impact, sudden load, chipping, cracking, or breakage. S Series Tool Steels Available from Aobo Steel [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15615,"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-15614","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) - 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