{"id":15553,"date":"2026-05-20T12:08:17","date_gmt":"2026-05-20T04:08:17","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15553"},"modified":"2026-06-25T14:10:24","modified_gmt":"2026-06-25T06:10:24","slug":"h-series-tool-steels","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/h-series-tool-steels\/","title":{"rendered":"Fornecedor de a\u00e7os-ferramenta da s\u00e9rie H | H10, H11, H13, H21"},"content":{"rendered":"<section class=\"aobo-h-series-page\">\n\n  <style>\n    .aobo-h-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      background: 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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 para ferramentas de trabalho a quente<\/span>\n      <h1>A\u00e7os para ferramentas da s\u00e9rie H<\/h1>\n      <p>\n        Os a\u00e7os ferramenta da s\u00e9rie H s\u00e3o a\u00e7os para trabalho a quente utilizados em matrizes e ferramentas expostas a calor, press\u00e3o, impacto, desgaste a quente e ciclos t\u00e9rmicos repetidos. S\u00e3o comumente usados em fundi\u00e7\u00e3o sob press\u00e3o, forjamento a quente, extrus\u00e3o a quente, corte a quente, estampagem e recalque.\n      <\/p>\n    <\/header>\n\n    <section class=\"aobo-product-strip\" aria-label=\"A\u00e7os para ferramentas da s\u00e9rie H dispon\u00edveis na Aobo Steel.\">\n      <h2>A\u00e7os para ferramentas da s\u00e9rie H dispon\u00edveis na Aobo Steel.<\/h2>\n      <p class=\"aobo-strip-intro\">\n        A Aobo Steel fornece a\u00e7os-ferramenta para trabalho a quente da s\u00e9rie H, em barras redondas e planas, para aplica\u00e7\u00f5es de fundi\u00e7\u00e3o sob press\u00e3o, forjamento a quente, extrus\u00e3o a quente, corte a quente, estampagem e recalque.\n      <\/p>\n\n      <div class=\"aobo-product-grid\">\n\n        <article class=\"aobo-product-card\">\n          <div class=\"aobo-product-image\">\n            <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/H10-tool-steel.avif\" alt=\"Barra de a\u00e7o ferramenta H10\" loading=\"lazy\" decoding=\"async\">\n          <\/div>\n          <h3>H10 | 1,2365 | SKD7<\/h3>\n          <p class=\"aobo-card-note\">A\u00e7o para trabalho a quente, com alta resist\u00eancia a altas temperaturas, condutividade t\u00e9rmica e ferramentas de extrus\u00e3o selecionadas.<\/p>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/h10-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\/H11-TOOL-STEEL-FLAT.avif\" alt=\"Barra plana de a\u00e7o ferramenta H11\" loading=\"lazy\" decoding=\"async\">\n          <\/div>\n          <h3>H11 | 1,2343 | SKD6<\/h3>\n          <p class=\"aobo-card-note\">A\u00e7o cromo para trabalho a quente com alta tenacidade e resist\u00eancia a fissuras.<\/p>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/h11-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\/H13-STEEL-FLAT-BAR.avif\" alt=\"Barra plana de a\u00e7o ferramenta H13\" loading=\"lazy\" decoding=\"async\">\n          <\/div>\n          <h3>H13 | 1,2344 | SKD61<\/h3>\n          <p class=\"aobo-card-note\">A\u00e7o ferramenta balanceado para trabalho a quente, indicado para fundi\u00e7\u00e3o sob press\u00e3o, forjamento, extrus\u00e3o e resist\u00eancia \u00e0 fadiga t\u00e9rmica.<\/p>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/h13-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\/07\/H21-TOOL-STEEL.avif\" alt=\"Barra de a\u00e7o ferramenta H21\" loading=\"lazy\" decoding=\"async\">\n          <\/div>\n          <h3>H21 | 1.2581 | SKD5<\/h3>\n          <p class=\"aobo-card-note\">A\u00e7o tungst\u00eanio para trabalho a quente, proporcionando alta dureza e resist\u00eancia ao desgaste em altas temperaturas.<\/p>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/h21-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      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n\n      <p>\n        Na sele\u00e7\u00e3o pr\u00e1tica de a\u00e7os para ferramentas, as classes mais comumente utilizadas s\u00e3o H10, H11, H13 e H21. Essas classes atendem aos principais requisitos para trabalho a quente: resist\u00eancia \u00e0 fissura\u00e7\u00e3o t\u00e9rmica, dureza a quente, tenacidade, estabilidade t\u00e9rmica e resist\u00eancia ao desgaste a quente.\n      <\/p>\n\n      <h2>O que s\u00e3o a\u00e7os ferramenta da s\u00e9rie H?<\/h2>\n      <p>\n        Os a\u00e7os-ferramenta da s\u00e9rie H s\u00e3o a\u00e7os-ferramenta ligados, projetados para trabalho a quente. A superf\u00edcie da ferramenta deve manter dureza e resist\u00eancia suficientes ao entrar em contato com metal quente ou material fundido. O corpo da ferramenta tamb\u00e9m deve resistir a trincas sob press\u00e3o, impacto e ciclos repetidos de aquecimento e resfriamento.\n      <\/p>\n      <p>\n        A maioria dos a\u00e7os da s\u00e9rie H possui teor m\u00e9dio de carbono e cont\u00e9m cromo, molibd\u00eanio, van\u00e1dio, tungst\u00eanio ou uma combina\u00e7\u00e3o desses elementos. Os a\u00e7os para trabalho a quente com cromo, como o H11 e o H13, oferecem tenacidade e resist\u00eancia \u00e0 fissura\u00e7\u00e3o t\u00e9rmica. Os a\u00e7os para trabalho a quente com tungst\u00eanio, como o H21, proporcionam maior dureza a quente e melhor resist\u00eancia ao amolecimento em altas temperaturas.\n      <\/p>\n      <p>\n        A principal diferen\u00e7a entre os a\u00e7os da s\u00e9rie H n\u00e3o reside apenas na dureza. Cada a\u00e7o apresenta um equil\u00edbrio diferente entre tenacidade, resist\u00eancia \u00e0 fadiga t\u00e9rmica, dureza a quente e resist\u00eancia ao desgaste.\n      <\/p>\n\n      <h2>A\u00e7os para ferramentas da s\u00e9rie H com classes equivalentes<\/h2>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Grau AISI<\/th>\n              <th>DIN \/ EN<\/th>\n              <th>JIS<\/th>\n              <th>Classifica\u00e7\u00e3o GB\/Chinesa<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>H10<\/td>\n              <td>1,2365 \/ X32CrMoV3-3<\/td>\n              <td>SKD7<\/td>\n              <td>4Cr3Mo3SiV<\/td>\n            <\/tr>\n            <tr>\n              <td>H11<\/td>\n              <td>1,2343 \/ X37CrMoV5-1<\/td>\n              <td>SKD6<\/td>\n              <td>4Cr5MoSiV<\/td>\n            <\/tr>\n            <tr>\n              <td>H13<\/td>\n              <td>1,2344 \/ X40CrMoV5-1<\/td>\n              <td>SKD61<\/td>\n              <td>4Cr5MoSiV1<\/td>\n            <\/tr>\n            <tr>\n              <td>H21<\/td>\n              <td>1.2581 \/ X30WCrV9-3<\/td>\n              <td>SKD5<\/td>\n              <td>3Cr2W8V<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        O a\u00e7o H13 \/ 1.2344 \/ SKD61 \u00e9 o mais comum no fornecimento internacional de a\u00e7os para ferramentas de trabalho a quente. O H11 \/ 1.2343 \/ SKD6 \u00e9 semelhante ao H13, mas prioriza a tenacidade. O H21 \/ 1.2581 \/ SKD5 segue uma composi\u00e7\u00e3o de liga diferente, pois a adi\u00e7\u00e3o de tungst\u00eanio melhora a resist\u00eancia ao amolecimento em altas temperaturas.\n      <\/p>\n\n      <h2>Composi\u00e7\u00e3o qu\u00edmica e elementos de liga dos a\u00e7os ferramenta da s\u00e9rie H<\/h2>\n      <p>\n        A composi\u00e7\u00e3o qu\u00edmica dos a\u00e7os ferramenta da s\u00e9rie H determina sua resposta \u00e0 t\u00eampera, dureza a quente, tenacidade, resist\u00eancia ao revenido e resist\u00eancia ao desgaste a quente. A tabela abaixo mostra as faixas t\u00edpicas de composi\u00e7\u00e3o qu\u00edmica. Os valores exatos devem seguir a norma exigida, a especifica\u00e7\u00e3o de compra e o certificado de ensaio de f\u00e1brica.\n      <\/p>\n\n      <h3>Composi\u00e7\u00e3o qu\u00edmica t\u00edpica<\/h3>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Grau<\/th>\n              <th>C<\/th>\n              <th>Cr<\/th>\n              <th>Mo<\/th>\n              <th>V<\/th>\n              <th>W<\/th>\n              <th>Si<\/th>\n              <th>Mn<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>H10 \/ 1,2365<\/td>\n              <td>0.28-0.35<\/td>\n              <td>2.70-3.20<\/td>\n              <td>2.50-3.00<\/td>\n              <td>0.40-0.70<\/td>\n              <td>N\u00e3o \u00e9 prim\u00e1rio<\/td>\n              <td>0.10-0.40<\/td>\n              <td>0.15-0.45<\/td>\n            <\/tr>\n            <tr>\n              <td>H11 \/ 1,2343<\/td>\n              <td>0.33-0.41<\/td>\n              <td>4.80-5.50<\/td>\n              <td>1.10-1.60<\/td>\n              <td>0.30-0.60<\/td>\n              <td>N\u00e3o \u00e9 prim\u00e1rio<\/td>\n              <td>0.80-1.20<\/td>\n              <td>0.20-0.50<\/td>\n            <\/tr>\n            <tr>\n              <td>H13 \/ 1,2344<\/td>\n              <td>0.35-0.42<\/td>\n              <td>4.80-5.50<\/td>\n              <td>1.20-1.75<\/td>\n              <td>0.80-1.20<\/td>\n              <td>N\u00e3o \u00e9 prim\u00e1rio<\/td>\n              <td>0.80-1.20<\/td>\n              <td>0.20-0.50<\/td>\n            <\/tr>\n            <tr>\n              <td>H21 \/ 1,2581<\/td>\n              <td>0.26-0.36<\/td>\n              <td>2.50-3.50<\/td>\n              <td>N\u00e3o \u00e9 prim\u00e1rio<\/td>\n              <td>0.30-0.60<\/td>\n              <td>8.50-10.00<\/td>\n              <td>0.15-0.50<\/td>\n              <td>0.15-0.45<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        Os a\u00e7os H11 e H13 s\u00e3o a\u00e7os para trabalho a quente \u00e0 base de cromo-molibd\u00eanio-van\u00e1dio. O H13 geralmente possui maior teor de van\u00e1dio que o H11, apresentando, portanto, maior resist\u00eancia ao desgaste e maior capacidade de endurecimento secund\u00e1rio. O H11, por sua vez, mant\u00e9m melhor tenacidade devido ao seu menor teor de van\u00e1dio.\n      <\/p>\n      <p>\n        O a\u00e7o H21 utiliza tungst\u00eanio como principal elemento de liga. Isso melhora a dureza a quente e a resist\u00eancia ao amolecimento em altas temperaturas, mas reduz a tenacidade em compara\u00e7\u00e3o com os a\u00e7os para trabalho a quente com cromo.\n      <\/p>\n\n      <h3>Como os elementos de liga afetam o desempenho<\/h3>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Elemento<\/th>\n              <th>Fun\u00e7\u00e3o em a\u00e7os ferramenta da s\u00e9rie H<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Carbono<\/td>\n              <td>Favorece a resposta ao endurecimento e a resist\u00eancia ao desgaste. O teor m\u00e9dio de carbono ajuda a manter a tenacidade.<\/td>\n            <\/tr>\n            <tr>\n              <td>Cromo<\/td>\n              <td>Melhora a temperabilidade, a resist\u00eancia \u00e0 oxida\u00e7\u00e3o e a resist\u00eancia ao amolecimento t\u00e9rmico.<\/td>\n            <\/tr>\n            <tr>\n              <td>Molibd\u00eanio<\/td>\n              <td>Melhora a resist\u00eancia a quente, a resist\u00eancia \u00e0 revenida e a resposta ao endurecimento secund\u00e1rio.<\/td>\n            <\/tr>\n            <tr>\n              <td>Van\u00e1dio<\/td>\n              <td>Forma carbonetos duros e melhora a resist\u00eancia ao desgaste em condi\u00e7\u00f5es de alta temperatura.<\/td>\n            <\/tr>\n            <tr>\n              <td>Tungst\u00eanio<\/td>\n              <td>Melhora a dureza a quente e a resist\u00eancia ao amolecimento em altas temperaturas.<\/td>\n            <\/tr>\n            <tr>\n              <td>Sil\u00edcio<\/td>\n              <td>Em algumas classes de a\u00e7o, proporciona resist\u00eancia \u00e0 oxida\u00e7\u00e3o e contribui para a resist\u00eancia a altas temperaturas.<\/td>\n            <\/tr>\n            <tr>\n              <td>Mangan\u00eas<\/td>\n              <td>Auxilia no controle da temperabilidade e da produ\u00e7\u00e3o de a\u00e7o.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>Propriedades dos a\u00e7os ferramenta da s\u00e9rie H<\/h2>\n      <p>\n        Os a\u00e7os ferramenta da s\u00e9rie H s\u00e3o selecionados para matrizes de trabalho a quente por combinarem dureza a quente, tenacidade, resist\u00eancia \u00e0 fadiga t\u00e9rmica, temperabilidade e resist\u00eancia ao revenido. Essas propriedades devem funcionar em conjunto. Uma matriz com alta dureza, mas baixa tenacidade, pode trincar prematuramente. Uma matriz com boa tenacidade, mas baixa dureza a quente, pode deformar-se ou amolecer durante o uso.\n      <\/p>\n\n      <h3>Principais propriedades em ferramentas para trabalho a quente<\/h3>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Propriedade<\/th>\n              <th>Significado pr\u00e1tico em ferramentas para trabalho a quente<\/th>\n              <th>Dire\u00e7\u00e3o t\u00edpica de inclina\u00e7\u00e3o<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Dureza quente<\/td>\n              <td>Ajuda a ferramenta a resistir ao amolecimento e \u00e0 deforma\u00e7\u00e3o em temperaturas elevadas.<\/td>\n              <td>H13, H21<\/td>\n            <\/tr>\n            <tr>\n              <td>resist\u00eancia \u00e0 fadiga t\u00e9rmica<\/td>\n              <td>Reduz o risco de fissuras t\u00e9rmicas durante ciclos repetidos de aquecimento e resfriamento.<\/td>\n              <td>H13, H11<\/td>\n            <\/tr>\n            <tr>\n              <td>Robustez<\/td>\n              <td>Reduz rachaduras, lascas e quebras sob impacto ou press\u00e3o.<\/td>\n              <td>H11, H13<\/td>\n            <\/tr>\n            <tr>\n              <td>Resist\u00eancia \u00e0 t\u00eampera<\/td>\n              <td>Ajuda o a\u00e7o a manter a dureza ap\u00f3s repetidas exposi\u00e7\u00f5es ao calor.<\/td>\n              <td>H13, H21<\/td>\n            <\/tr>\n            <tr>\n              <td>resist\u00eancia ao desgaste a quente<\/td>\n              <td>Resiste \u00e0 eros\u00e3o, abras\u00e3o e desgaste por deforma\u00e7\u00e3o pl\u00e1stica em altas temperaturas.<\/td>\n              <td>H13, H21<\/td>\n            <\/tr>\n            <tr>\n              <td>Temperabilidade<\/td>\n              <td>Auxilia ferramentas de grande porte a atingirem uma dureza mais uniforme ap\u00f3s o tratamento t\u00e9rmico.<\/td>\n              <td>H11, H13<\/td>\n            <\/tr>\n            <tr>\n              <td>Condutividade t\u00e9rmica<\/td>\n              <td>Ajuda a ferramenta a remover o calor da superf\u00edcie de trabalho.<\/td>\n              <td>H10<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h3>Dire\u00e7\u00e3o da propriedade por n\u00edvel<\/h3>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Grau<\/th>\n              <th>Dureza a quente<\/th>\n              <th>Robustez<\/th>\n              <th>Resist\u00eancia \u00e0 fadiga t\u00e9rmica<\/th>\n              <th>Resist\u00eancia ao desgaste a quente<\/th>\n              <th>Melhor Dire\u00e7\u00e3o para o Im\u00f3vel<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>H10 \/ 1,2365<\/td>\n              <td>Bom<\/td>\n              <td>Bom<\/td>\n              <td>Bom<\/td>\n              <td>M\u00e9dio<\/td>\n              <td>Transfer\u00eancia de calor e resist\u00eancia a altas temperaturas<\/td>\n            <\/tr>\n            <tr>\n              <td>H11 \/ 1,2343<\/td>\n              <td>Bom<\/td>\n              <td>Muito bom<\/td>\n              <td>Bom<\/td>\n              <td>M\u00e9dio<\/td>\n              <td>Resist\u00eancia e durabilidade<\/td>\n            <\/tr>\n            <tr>\n              <td>H13 \/ 1,2344<\/td>\n              <td>Bom<\/td>\n              <td>Bom<\/td>\n              <td>Muito bom<\/td>\n              <td>Bom<\/td>\n              <td>Desempenho equilibrado em trabalhos a quente<\/td>\n            <\/tr>\n            <tr>\n              <td>H21 \/ 1,2581<\/td>\n              <td>Muito bom<\/td>\n              <td>M\u00e9dio<\/td>\n              <td>M\u00e9dio<\/td>\n              <td>Muito bom<\/td>\n              <td>Dureza a quente e resist\u00eancia ao desgaste em altas temperaturas<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h3>Dureza a quente e resist\u00eancia ao amolecimento<\/h3>\n      <p>\n        A dureza a quente mede a capacidade do a\u00e7o de manter sua dureza e resist\u00eancia em altas temperaturas. Essa propriedade \u00e9 importante quando a ferramenta est\u00e1 em contato prolongado com metal quente ou opera em altas temperaturas superficiais.\n      <\/p>\n      <p>\n        Os a\u00e7os H11 e H13 suportam muitas condi\u00e7\u00f5es comuns de trabalho a quente. O H21 oferece maior resist\u00eancia ao amolecimento devido ao seu alto teor de tungst\u00eanio. Isso torna o H21 \u00fatil para condi\u00e7\u00f5es de usinagem em temperaturas mais elevadas, especialmente onde abras\u00e3o e eros\u00e3o ocorrem simultaneamente.\n      <\/p>\n      <p>\n        A dureza a quente n\u00e3o deve ser considerada isoladamente. Em matrizes de alto impacto, um a\u00e7o cromo para trabalho a quente mais resistente pode ter um desempenho melhor do que um a\u00e7o tungst\u00eanio de liga mais alta.\n      <\/p>\n\n      <h3>Resist\u00eancia e durabilidade<\/h3>\n      <p>\n        A tenacidade ajuda uma ferramenta a resistir a rachaduras sob impacto, press\u00e3o, cantos vivos e espessura de se\u00e7\u00e3o irregular. Matrizes de forjamento a quente, mandris, pun\u00e7\u00f5es e ferramentas de suporte geralmente precisam dessa propriedade.\n      <\/p>\n      <p>\n        O H11 possui um alto n\u00edvel de tenacidade entre os a\u00e7os da s\u00e9rie H mais comuns. O H13 tamb\u00e9m apresenta boa tenacidade, mas oferece uma combina\u00e7\u00e3o mais equilibrada de resist\u00eancia \u00e0 fissura\u00e7\u00e3o t\u00e9rmica e ao desgaste. O H21 requer maior cuidado no uso em ferramentas sujeitas a impactos, pois sua composi\u00e7\u00e3o met\u00e1lica prioriza a dureza a quente em detrimento da tenacidade.\n      <\/p>\n\n      <h3>Resist\u00eancia \u00e0 fadiga t\u00e9rmica e fissura\u00e7\u00e3o por calor<\/h3>\n      <p>\n        A fadiga t\u00e9rmica ocorre quando a superf\u00edcie da ferramenta aquece e esfria repetidamente. Com o tempo, isso pode produzir microfissuras superficiais, conhecidas como trincas t\u00e9rmicas. Matrizes de fundi\u00e7\u00e3o sob press\u00e3o, matrizes de forjamento a quente e ferramentas de extrus\u00e3o frequentemente falham dessa maneira.\n      <\/p>\n      <p>\n        O a\u00e7o H13 \u00e9 amplamente utilizado por combinar resist\u00eancia \u00e0 fissura\u00e7\u00e3o t\u00e9rmica com tenacidade e resist\u00eancia ao desgaste. O a\u00e7o H11 pode ser \u00fatil quando o risco de fissura\u00e7\u00e3o \u00e9 maior. Tratamento t\u00e9rmico adequado, condi\u00e7\u00e3o da superf\u00edcie, pr\u00e1ticas de resfriamento e dureza de trabalho influenciam a resist\u00eancia \u00e0 fissura\u00e7\u00e3o t\u00e9rmica.\n      <\/p>\n      <p>\n        Uma dureza de trabalho moderada geralmente proporciona uma vida \u00fatil da matriz melhor do que a dureza m\u00e1xima. Dureza excessiva pode aumentar o risco de fissuras, especialmente em matrizes ou ferramentas grandes submetidas a ciclos t\u00e9rmicos severos.\n      <\/p>\n\n      <h3>Temperabilidade e Estabilidade Dimensional<\/h3>\n      <p>\n        Muitas ligas da s\u00e9rie H possuem boa temperabilidade e podem ser endurecidas por resfriamento ao ar ou resfriamento controlado. Isso reduz a distor\u00e7\u00e3o em compara\u00e7\u00e3o com m\u00e9todos de t\u00eampera mais severos.\n      <\/p>\n      <p>\n        Os a\u00e7os H11 e H13 s\u00e3o amplamente utilizados em ferramentas de trabalho a quente de grande porte, pois desenvolvem dureza relativamente uniforme ap\u00f3s tratamento t\u00e9rmico adequado. O al\u00edvio de tens\u00f5es ap\u00f3s o desbaste pode reduzir a distor\u00e7\u00e3o durante o endurecimento final, especialmente em ferramentas com cavidades profundas ou se\u00e7\u00f5es irregulares.\n      <\/p>\n      <p>\n        A estabilidade dimensional ainda depende do tamanho da ferramenta, do controle do forno, do pr\u00e9-aquecimento, do m\u00e9todo de t\u00eampera e das pr\u00e1ticas de revenimento.\n      <\/p>\n\n      <h2>Tratamento t\u00e9rmico de a\u00e7os ferramenta da s\u00e9rie H<\/h2>\n      <p>\n        O tratamento t\u00e9rmico controla a dureza final, a tenacidade, a resist\u00eancia \u00e0 fadiga t\u00e9rmica e a vida \u00fatil da matriz dos a\u00e7os ferramenta da s\u00e9rie H. O tratamento t\u00e9rmico em alta temperatura deve ser realizado em um ambiente controlado, como um forno a v\u00e1cuo, um forno de atmosfera controlada ou um banho de sal neutro. O controle inadequado da atmosfera pode causar oxida\u00e7\u00e3o, cementa\u00e7\u00e3o ou descarboneta\u00e7\u00e3o.\n      <\/p>\n\n      <h3>Principais processos de tratamento t\u00e9rmico<\/h3>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Processo<\/th>\n              <th>Finalidade<\/th>\n              <th>Nota pr\u00e1tica<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Recozimento<\/td>\n              <td>Amolece o a\u00e7o para usinagem<\/td>\n              <td>Common annealing range for chromium hot work steels is about 845-900 \u00b0C<\/td>\n            <\/tr>\n            <tr>\n              <td>Al\u00edvio do estresse<\/td>\n              <td>Reduz a tens\u00e3o de usinagem antes do endurecimento.<\/td>\n              <td>Frequentemente utilizado ap\u00f3s usinagem de desbaste<\/td>\n            <\/tr>\n            <tr>\n              <td>Pr\u00e9-aquecimento<\/td>\n              <td>Reduz o choque t\u00e9rmico antes da austenitiza\u00e7\u00e3o.<\/td>\n              <td>Importante para ferramentas grandes ou complexas.<\/td>\n            <\/tr>\n            <tr>\n              <td>Austenitiza\u00e7\u00e3o<\/td>\n              <td>Forma a estrutura endurec\u00edvel<\/td>\n              <td>A temperatura depende da inclina\u00e7\u00e3o e do tamanho da se\u00e7\u00e3o.<\/td>\n            <\/tr>\n            <tr>\n              <td>Resfriamento<\/td>\n              <td>Desenvolve dureza<\/td>\n              <td>Dependendo do tamanho e da qualidade, podem ser utilizados ar comprimido, jato de ar, \u00f3leo ou banho de sal.<\/td>\n            <\/tr>\n            <tr>\n              <td>T\u00eampera<\/td>\n              <td>Ajusta a dureza e a resist\u00eancia.<\/td>\n              <td>A t\u00eampera dupla ou tripla \u00e9 comumente utilizada.<\/td>\n            <\/tr>\n            <tr>\n              <td>Nitreta\u00e7\u00e3o<\/td>\n              <td>Melhora a resist\u00eancia ao desgaste da superf\u00edcie<\/td>\n              <td>Opcional ap\u00f3s o endurecimento e revenimento finais.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        A normaliza\u00e7\u00e3o geralmente n\u00e3o \u00e9 recomendada para a\u00e7os ferramenta da s\u00e9rie H. Muitos desses a\u00e7os possuem alta temperabilidade e podem sofrer endurecimento parcial durante o resfriamento ao ar.\n      <\/p>\n\n      <h3>Faixas t\u00edpicas de tratamento t\u00e9rmico<\/h3>\n      <p>\n        Os valores a seguir s\u00e3o faixas de refer\u00eancia t\u00edpicas. O processo real deve ser ajustado pela instala\u00e7\u00e3o de tratamento t\u00e9rmico de acordo com o tamanho da ferramenta, o tipo de forno, o m\u00e9todo de t\u00eampera e a dureza de trabalho necess\u00e1ria.\n      <\/p>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Grau<\/th>\n              <th>Dureza Recozida<\/th>\n              <th>Faixa t\u00edpica de austenitiza\u00e7\u00e3o<\/th>\n              <th>Dire\u00e7\u00e3o de t\u00eampera<\/th>\n              <th>Dire\u00e7\u00e3o de t\u00eampera<\/th>\n              <th>Dureza de trabalho t\u00edpica<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>H10 \/ 1,2365<\/td>\n              <td>Usually \u2264229 HB<\/td>\n              <td>1010-1050 \u00b0C<\/td>\n              <td>Arrefecimento por ar, \u00f3leo ou controlado<\/td>\n              <td>Recomenda-se t\u00eampera m\u00faltipla<\/td>\n              <td>44-52 HRC<\/td>\n            <\/tr>\n            <tr>\n              <td>H11 \/ 1,2343<\/td>\n              <td>Usually \u2264229 HB<\/td>\n              <td>995-1025 \u00b0C<\/td>\n              <td>Ar, ar comprimido, \u00f3leo ou resfriamento controlado<\/td>\n              <td>Recomenda-se t\u00eampera m\u00faltipla<\/td>\n              <td>44-52 HRC<\/td>\n            <\/tr>\n            <tr>\n              <td>H13 \/ 1,2344<\/td>\n              <td>Usually \u2264229 HB<\/td>\n              <td>995-1025 \u00b0C<\/td>\n              <td>Ar, ar comprimido, \u00f3leo ou resfriamento controlado<\/td>\n              <td>Recomenda-se t\u00eampera m\u00faltipla<\/td>\n              <td>44-52 HRC<\/td>\n            <\/tr>\n            <tr>\n              <td>H21 \/ 1,2581<\/td>\n              <td>Usually \u2264255 HB<\/td>\n              <td>1095-1150 \u00b0C<\/td>\n              <td>Banho de ar, \u00f3leo ou sal<\/td>\n              <td>Recomenda-se t\u00eampera em alta temperatura.<\/td>\n              <td>45-55 HRC<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>\n        After hardening, tools should be tempered promptly. Double or triple tempering helps reduce retained austenite, internal stresses, and the risk of cracking. Many H-series tools are tempered at high temperature, often around 540-650 \u00b0C, depending on grade and required hardness.\n      <\/p>\n\n      <h2>Aplica\u00e7\u00f5es e Sele\u00e7\u00e3o de Notas<\/h2>\n      <p>\n        A melhor classe da s\u00e9rie H depende do material da pe\u00e7a, da temperatura da superf\u00edcie, da carga de impacto, das pr\u00e1ticas de refrigera\u00e7\u00e3o e do principal modo de falha. A tabela abaixo re\u00fane a l\u00f3gica de aplica\u00e7\u00e3o e sele\u00e7\u00e3o em um s\u00f3 lugar para evitar a repeti\u00e7\u00e3o das descri\u00e7\u00f5es das classes em se\u00e7\u00f5es separadas.\n      <\/p>\n\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr>\n              <th>Aplicativo<\/th>\n              <th>Principal risco de falha<\/th>\n              <th>Dire\u00e7\u00e3o de inclina\u00e7\u00e3o adequada<\/th>\n              <th>Nota de sele\u00e7\u00e3o<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Matrizes de fundi\u00e7\u00e3o de alum\u00ednio<\/td>\n              <td>Rachaduras t\u00e9rmicas, eros\u00e3o, fadiga t\u00e9rmica<\/td>\n              <td>H13, H11<\/td>\n              <td>H13 \u00e9 a op\u00e7\u00e3o padr\u00e3o. H11 \u00e9 \u00fatil quando o risco de fissuras \u00e9 mais s\u00e9rio.<\/td>\n            <\/tr>\n            <tr>\n              <td>Matrizes de fundi\u00e7\u00e3o de magn\u00e9sio e zinco<\/td>\n              <td>Ciclos t\u00e9rmicos e desgaste superficial<\/td>\n              <td>H13<\/td>\n              <td>O H13 oferece um equil\u00edbrio pr\u00e1tico entre resist\u00eancia e durabilidade em caso de fissuras t\u00e9rmicas.<\/td>\n            <\/tr>\n            <tr>\n              <td>Ferramentas de lat\u00e3o e liga de cobre<\/td>\n              <td>Amolecimento em altas temperaturas, desgaste a quente<\/td>\n              <td>H21<\/td>\n              <td>O H21 \u00e9 adequado para condi\u00e7\u00f5es de alta temperatura, onde a dureza a quente proporcionada pelo tungst\u00eanio \u00e9 \u00fatil.<\/td>\n            <\/tr>\n            <tr>\n              <td>Matrizes de extrus\u00e3o de alum\u00ednio<\/td>\n              <td>Press\u00e3o, desgaste a quente, fadiga t\u00e9rmica<\/td>\n              <td>H13, H11, H10<\/td>\n              <td>H13 e H11 atendem \u00e0 maioria das necessidades de ferramentas. H10 pode ser \u00fatil onde a transfer\u00eancia de calor \u00e9 importante.<\/td>\n            <\/tr>\n            <tr>\n              <td>Matrizes de forjamento a quente<\/td>\n              <td>Impacto, fissuras, deforma\u00e7\u00e3o, trincas t\u00e9rmicas<\/td>\n              <td>H13, H11<\/td>\n              <td>H11 favorece a resist\u00eancia a fissuras. H13 proporciona um desempenho geral mais amplo.<\/td>\n            <\/tr>\n            <tr>\n              <td>L\u00e2minas de corte a quente<\/td>\n              <td>Amaciamento das bordas, desgaste a quente<\/td>\n              <td>H13, H21<\/td>\n              <td>O modelo H13 \u00e9 adequado para cisalhamento a quente em geral. O modelo H21 \u00e9 adequado para condi\u00e7\u00f5es mais quentes ou abrasivas.<\/td>\n            <\/tr>\n            <tr>\n              <td>Mandris e ferramentas de suporte<\/td>\n              <td>Alto estresse, rachaduras<\/td>\n              <td>H11, H10<\/td>\n              <td>O H11 oferece resist\u00eancia. O H10 pode ser usado onde a dissipa\u00e7\u00e3o de calor \u00e9 importante.<\/td>\n            <\/tr>\n            <tr>\n              <td>Ferramentas para desbaste e alargamento a quente<\/td>\n              <td>Press\u00e3o superficial, desgaste a quente<\/td>\n              <td>H13, H21<\/td>\n              <td>H13 \u00e9 a op\u00e7\u00e3o equilibrada. H21 \u00e9 usado quando o desgaste a quente \u00e9 predominante.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\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 H?<\/h2>\n        <p>\n          A Aobo Steel fornece barras redondas e barras chatas de a\u00e7o ferramenta para trabalho a quente nos graus H10, H11, H13, H21 e outros, para pedidos industriais em grande quantidade. 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>Hot Work Tool Steel Guide H-Series Tool Steels H-series tool steels are hot work tool steels used for dies and tooling exposed to heat, pressure, impact, hot wear, and repeated thermal cycling. They are commonly used in die casting, hot forging, hot extrusion, hot shearing, heading, and upsetting. H-Series Tool Steels Available from Aobo Steel [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15554,"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-15553","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>H-Series Tool Steels Supplier | H10, H11, H13, H21 - AoboSteel<\/title>\n<meta name=\"description\" content=\"Compare common H-series tool steels including H10, H11, H13 and H21. 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