{"id":15684,"date":"2026-05-27T11:39:55","date_gmt":"2026-05-27T03:39:55","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15684"},"modified":"2026-10-19T22:38:45","modified_gmt":"2026-10-19T14:38:45","slug":"d2-vs-s7-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/d2-vs-s7-tool-steel\/","title":{"rendered":"A\u00e7o ferramenta D2 versus S7: resist\u00eancia ao desgaste ou tenacidade ao impacto?"},"content":{"rendered":"<h1 class=\"wp-block-heading has-text-align-center\" id=\"h-d2-vs-s7-tool-steel\">A\u00e7o ferramenta D2 vs S7<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/pt\/d2-steel-properties\/\">a\u00e7o ferramenta D2<\/a> \u00e9 um produto com alto teor de carbono e alto teor de cromo. <a href=\"https:\/\/aobosteel.com\/pt\/cold-work-tool-steels\/\">A\u00e7o Ferramenta para Trabalho a Frio<\/a>. Selecione-o quando desgaste abrasivo, reten\u00e7\u00e3o de fio e estabilidade dimensional forem os requisitos principais. S7 \u00e9 um <a href=\"https:\/\/aobosteel.com\/pt\/s-series-tool-steel\/\">a\u00e7o ferramenta resistente a choques<\/a>. Selecione-o quando carga de impacto, lascamento, trincas ou quebra s\u00fabita forem o risco principal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Selecione D2 quando a ferramenta se desgastar antes de quebrar. Selecione S7 quando a ferramenta lascar, rachar ou quebrar antes de se desgastar.<\/p>\n\n\n\n<h2 id=\"h-d2-vs-s7-quick-selection-guide\" class=\"wp-block-heading\">Guia de sele\u00e7\u00e3o r\u00e1pida D2 vs S7<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Requisito principal<\/th><th class=\"has-text-align-left\" data-align=\"left\">Melhor escolha<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">resist\u00eancia ao desgaste abrasivo<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Longa vida \u00fatil da ponta de corte<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Alta dureza de trabalho<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Estabilidade dimensional em ferramentas de trabalho a frio<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">resist\u00eancia ao impacto<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Resist\u00eancia a lascas e rachaduras<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Ferramentas submetidas a impactos<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">N\u00facleo resistente com resist\u00eancia moderada ao desgaste<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-chemical-composition-comparison\" class=\"wp-block-heading\">Compara\u00e7\u00e3o da composi\u00e7\u00e3o qu\u00edmica<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O a\u00e7o D2 utiliza alto teor de carbono e alto teor de cromo para formar um grande volume de carbonetos duros. O a\u00e7o S7 utiliza menor teor de carbono e teor moderado de liga para manter o a\u00e7o mais resistente sob cargas de impacto.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Elemento<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta D2<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta S7<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Carbono<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.50\u20131.60%<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.45\u20130.55%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cromo<\/td><td class=\"has-text-align-left\" data-align=\"left\">11.00\u201312.05%<\/td><td class=\"has-text-align-left\" data-align=\"left\">3.00\u20133.50%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Molibd\u00eanio<\/td><td class=\"has-text-align-left\" data-align=\"left\">0,70\u20131,20%<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.30\u20131.80%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Van\u00e1dio<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.25\u20131.00%<\/td><td class=\"has-text-align-left\" data-align=\"left\">Geralmente 0,20\u20130,30%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Silicon<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 0,30%<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.20\u20131.00%<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Manganese<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 0,30%<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.20\u20130.90%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">As maiores diferen\u00e7as s\u00e3o carbono e cromo. D2 tem aproximadamente <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-composition-chart\/\">tr\u00eas vezes o teor de carbono<\/a> do S7 e mais de tr\u00eas vezes o teor de cromo. Essa composi\u00e7\u00e3o qu\u00edmica confere ao D2 uma estrutura rica em carbonetos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S7 mant\u00e9m o carbono muito mais baixo e utiliza um sistema de liga mais equilibrado. Seu maior teor de molibd\u00eanio tamb\u00e9m auxilia a temperabilidade e <a href=\"https:\/\/aobosteel.com\/pt\/hot-work-tool-steel-softening-resistance\/\">resist\u00eancia ao amolecimento<\/a> em temperaturas moderadamente elevadas.<\/p>\n\n\n\n<h2 id=\"h-equivalent-grades-comparison\" class=\"wp-block-heading\">Compara\u00e7\u00e3o de notas equivalentes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D2 tem muitos equivalentes reconhecidos porque \u00e9 amplamente utilizado em normas internacionais de a\u00e7os-ferramenta para trabalho a frio. S7 tem menos equivalentes internacionais diretos e geralmente \u00e9 especificado pela designa\u00e7\u00e3o AISI ou UNS.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Padr\u00e3o<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta D2<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta S7<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">AISI \/ SAE<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">UNS<\/td><td class=\"has-text-align-left\" data-align=\"left\">T30402<\/td><td class=\"has-text-align-left\" data-align=\"left\">T41907<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">DIN \/ W.Nr.<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.2379<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">JIS<\/td><td class=\"has-text-align-left\" data-align=\"left\">SKD11<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">BS<\/td><td class=\"has-text-align-left\" data-align=\"left\">BD2 \/ 4659 BD2<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">AFNOR<\/td><td class=\"has-text-align-left\" data-align=\"left\">Z160CDV12<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2013<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Para compras internacionais, o D2 \u00e9 comumente solicitado como AISI D2, <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-equivalent-grades\/\">1.2379 ou SKD11<\/a>. O S7 \u00e9 geralmente solicitado diretamente como AISI S7 ou UNS T41907.<\/p>\n\n\n\n<h2 id=\"h-properties-comparison\" class=\"wp-block-heading\">Compara\u00e7\u00e3o de Propriedades<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o compare D2 e S7 apenas pela dureza. D2 normalmente trabalha em dureza mais alta e oferece melhor resist\u00eancia ao desgaste. S7 tem dureza ligeiramente menor, mas oferece tenacidade ao impacto muito melhor.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Propriedade<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta D2<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta S7<\/th><th class=\"has-text-align-left\" data-align=\"left\">Significado da sele\u00e7\u00e3o<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Dureza de trabalho t\u00edpica<\/td><td class=\"has-text-align-left\" data-align=\"left\">58\u201360 HRC para muitas aplica\u00e7\u00f5es de trabalho a frio<\/td><td class=\"has-text-align-left\" data-align=\"left\">56\u201358 HRC para aplica\u00e7\u00f5es resistentes a choques<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 normalmente trabalha mais. O S7 equilibra dureza com resist\u00eancia.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Dureza ap\u00f3s t\u00eampera<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 61\u201363 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">Depende do tamanho da se\u00e7\u00e3o e das condi\u00e7\u00f5es de t\u00eampera.<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 atinge uma dureza muito elevada ap\u00f3s t\u00eampera ao ar.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Resist\u00eancia ao desgaste<\/td><td class=\"has-text-align-left\" data-align=\"left\">Alto<\/td><td class=\"has-text-align-left\" data-align=\"left\">Moderado<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 \u00e9 melhor para desgaste abrasivo e maior vida \u00fatil da l\u00e2mina.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tenacidade<\/td><td class=\"has-text-align-left\" data-align=\"left\">Razo\u00e1vel em compara\u00e7\u00e3o com S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Alto<\/td><td class=\"has-text-align-left\" data-align=\"left\">O S7 \u00e9 melhor quando as ferramentas lascam, racham ou quebram.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Usinabilidade<\/td><td class=\"has-text-align-left\" data-align=\"left\">Cerca de 45, podendo chegar a 65 dependendo do estado de conserva\u00e7\u00e3o.<\/td><td class=\"has-text-align-left\" data-align=\"left\">Cerca de 70<\/td><td class=\"has-text-align-left\" data-align=\"left\">O a\u00e7o S7 \u00e9 mais f\u00e1cil de usinar na condi\u00e7\u00e3o recozida.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Estabilidade dimensional<\/td><td class=\"has-text-align-left\" data-align=\"left\">Muito bom<\/td><td class=\"has-text-align-left\" data-align=\"left\">Bom<\/td><td class=\"has-text-align-left\" data-align=\"left\">Ambos s\u00e3o a\u00e7os de endurecimento ao ar, mas o D2 geralmente apresenta menor movimenta\u00e7\u00e3o.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Varia\u00e7\u00e3o dimensional t\u00edpica no endurecimento<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 0,0005 pol.\/pol.<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 0,001 pol.\/pol.<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 apresenta uma vantagem onde o controle dimensional \u00e9 cr\u00edtico.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">resist\u00eancia \u00e0 compress\u00e3o<\/td><td class=\"has-text-align-left\" data-align=\"left\">Mais alto<\/td><td class=\"has-text-align-left\" data-align=\"left\">Menor que D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">O a\u00e7o D2 \u00e9 mais adequado para matrizes de trabalho a frio de alta press\u00e3o quando o impacto \u00e9 controlado.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O alto teor de carbonetos do D2 melhora a resist\u00eancia ao desgaste, mas reduz a tenacidade. O controle geral \u00e9 importante porque o tratamento t\u00e9rmico, a geometria da aresta de corte, o acabamento superficial e as condi\u00e7\u00f5es de suporte afetam a confiabilidade da ferramenta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S7 cont\u00e9m menos carbonetos grandes, por isso absorve melhor o impacto. \u00c9 mais f\u00e1cil de usinar no estado recozido e \u00e9 mais tolerante sob cargas de choque ou concentra\u00e7\u00f5es de tens\u00e3o. D2 geralmente tem a vantagem quando precis\u00e3o e movimento m\u00ednimo s\u00e3o cr\u00edticos.<\/p>\n\n\n\n<h2 id=\"h-heat-treatment-differences\" class=\"wp-block-heading\">Diferen\u00e7as no tratamento t\u00e9rmico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os a\u00e7os D2 e S7 s\u00e3o ambos a\u00e7os ferramenta de t\u00eampera ao ar, mas seus objetivos de tratamento t\u00e9rmico diferem. O tratamento t\u00e9rmico do a\u00e7o S7 prioriza a tenacidade com dureza suficiente para uso em servi\u00e7o.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Fator de tratamento t\u00e9rmico<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta D2<\/th><th class=\"has-text-align-left\" data-align=\"left\">A\u00e7o ferramenta S7<\/th><th class=\"has-text-align-left\" data-align=\"left\">Impacto pr\u00e1tico<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Pr\u00e9-aquecimento<\/td><td class=\"has-text-align-left\" data-align=\"left\">1200\u20131300\u00b0F \/ 650\u2013705\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">1200\u20131300\u00b0F \/ 650\u2013705\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">Ambas as classes de materiais necessitam de aquecimento controlado antes do endurecimento.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">temperatura de austenitiza\u00e7\u00e3o<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 1850\u00b0F \/ 1010\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 1725\u00b0F \/ 940\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 requer uma temperatura de endurecimento mais alta devido ao seu maior teor de liga e carbonetos.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Dimens\u00e3o da se\u00e7\u00e3o de endurecimento ao ar<\/td><td class=\"has-text-align-left\" data-align=\"left\">At\u00e9 cerca de 5 polegadas \/ 127 mm<\/td><td class=\"has-text-align-left\" data-align=\"left\">At\u00e9 aproximadamente 2,5 polegadas \/ 63,5 mm<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 possui maior capacidade de endurecimento profundo em se\u00e7\u00f5es maiores.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Diretrizes comuns de t\u00eampera para trabalho a frio<\/td><td class=\"has-text-align-left\" data-align=\"left\">Revenimento duplo em alta temperatura, geralmente em torno de 900\u2013960\u00b0F \/ 480\u2013515\u00b0C.<\/td><td class=\"has-text-align-left\" data-align=\"left\">Revenimento duplo a baixa temperatura, geralmente em torno de 220\u2013230 \u00b0C (425\u2013450 \u00b0F).<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2 visa a resist\u00eancia ao desgaste. S7 visa a resist\u00eancia ao impacto.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Dureza de trabalho t\u00edpica<\/td><td class=\"has-text-align-left\" data-align=\"left\">58\u201360 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">56\u201358 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2 geralmente trabalha mais. S7 mant\u00e9m mais resist\u00eancia.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Temperatura de recozimento<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 1650\u00b0F \/ 899\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">Aproximadamente 1550\u00b0F \/ 843\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2 requer uma temperatura de recozimento mais alta.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D2 requer temperatura de austenitiza\u00e7\u00e3o mais alta que S7. Controle cuidadosamente a janela de t\u00eampera, pois o superaquecimento pode reduzir a tenacidade e aumentar o <a href=\"https:\/\/aobosteel.com\/pt\/quench-cracking-tool-steel\/\">risco de trincamento<\/a>. Se\u00e7\u00f5es grandes podem precisar de t\u00eampera mais r\u00e1pida para atingir a dureza total.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A estrat\u00e9gia de revenimento tamb\u00e9m difere. D2 \u00e9 geralmente revenido para manter alta resist\u00eancia ao desgaste e dureza de trabalho. S7 \u00e9 revenido para equilibrar dureza e <a href=\"https:\/\/aobosteel.com\/pt\/impact-wear-and-spalling\/\">tenacidade ao impacto<\/a>. Para uso em trabalho a quente ou corte a quente, o S7 pode exigir temperaturas de revenimento mais altas dependendo da temperatura de trabalho da ferramenta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para usu\u00e1rios e projetistas de ferramentas, o ponto principal n\u00e3o \u00e9 o procedimento completo de tratamento t\u00e9rmico. O ponto principal \u00e9 como o tratamento t\u00e9rmico afeta a dureza final, a tenacidade, a varia\u00e7\u00e3o dimensional e a adequa\u00e7\u00e3o ao tamanho da se\u00e7\u00e3o.<\/p>\n\n\n\n<h2 id=\"h-typical-applications\" class=\"wp-block-heading\">Aplica\u00e7\u00f5es t\u00edpicas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D2 e S7 podem aparecer em categorias de ferramentas semelhantes, mas voc\u00ea os seleciona para condi\u00e7\u00f5es de trabalho diferentes. D2 \u00e9 comum em ferramentas de trabalho a frio que precisam de longa vida ao desgaste. S7 \u00e9 comum em ferramentas expostas a impacto ou carga de choque.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Aplica\u00e7\u00e3o<\/th><th class=\"has-text-align-left\" data-align=\"left\">Escolha comum<\/th><th class=\"has-text-align-left\" data-align=\"left\">Raz\u00e3o<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-for-stamping-blanking-piercing-dies\/\">Matrizes de corte de longo prazo<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Alta resist\u00eancia ao desgaste e reten\u00e7\u00e3o de fio.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Matrizes de estampagem para chapas finas<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Boa estabilidade dimensional e longa vida \u00fatil da ferramenta.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Conforma\u00e7\u00e3o de matrizes sob impacto controlado<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Boa resist\u00eancia ao desgaste e \u00e0 compress\u00e3o.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cortadores de corte<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Melhor reten\u00e7\u00e3o da l\u00e2mina de corte<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Placas de desgaste<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Melhor resist\u00eancia ao desgaste abrasivo<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Medidores de precis\u00e3o<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Baixa distor\u00e7\u00e3o durante o tratamento t\u00e9rmico.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">socos de impacto<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Melhor resist\u00eancia a choques e lascas.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cinz\u00e9is<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Alta resist\u00eancia a impactos<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">ferramentas para quebrar concreto<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Design em a\u00e7o resistente a impactos<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-for-shear-blades-slitter-knives-industrial-knives\/\">L\u00e2minas de corte refor\u00e7adas<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Maior resist\u00eancia a impactos fortes<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/pt\/selection-of-tool-steel-for-hot-shear-blades\/\">Pun\u00e7\u00f5es quentes e l\u00e2minas de corte quentes<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Melhor resist\u00eancia e resist\u00eancia moderada ao calor.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Ferramentas de moldagem de pl\u00e1stico que exigem alta resist\u00eancia<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Boa resist\u00eancia e capacidade de polimento com dureza adequada.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Um pun\u00e7\u00e3o usado em uma chapa fina e limpa em uma longa s\u00e9rie de produ\u00e7\u00e3o pode usar a\u00e7o D2 para maior durabilidade da l\u00e2mina. Uma l\u00e2mina usada para chapas grossas, impactos fortes ou corte a quente pode precisar de a\u00e7o S7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O a\u00e7o D2 tamb\u00e9m \u00e9 usado em pe\u00e7as de desgaste, calibradores de plugue, calibradores de anel, facas de corte e matrizes de trabalho a frio, onde o controle dimensional e a resist\u00eancia ao desgaste s\u00e3o importantes. O a\u00e7o S7 \u00e9 usado em cinz\u00e9is, ferramentas pneum\u00e1ticas, conjuntos de rebites, ferramentas de impacto, pun\u00e7\u00f5es para servi\u00e7o pesado e ferramentas selecionadas para trabalho a quente.<\/p>\n\n\n\n<h2 id=\"h-failure-mode-selection-guide\" class=\"wp-block-heading\">Guia de Sele\u00e7\u00e3o de Modos de Falha<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O modo de falha \u00e9 a maneira mais clara de escolher entre D2 e S7. O material deve corresponder \u00e0 forma como a ferramenta realmente falha em servi\u00e7o.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Modo de falha de servi\u00e7o<\/th><th class=\"has-text-align-left\" data-align=\"left\">Melhor escolha<\/th><th class=\"has-text-align-left\" data-align=\"left\">Raz\u00e3o<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Desgaste Abrasivo<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Um maior volume de carboneto melhora a resist\u00eancia ao desgaste.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Arredondamento de bordas<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2 mant\u00e9m o fio de trabalho em contato por mais tempo.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Perda de precis\u00e3o dimensional por desgaste<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">Uma melhor resist\u00eancia ao desgaste ajuda a manter as dimens\u00f5es da ferramenta.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Lascamento<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">Uma maior resist\u00eancia reduz a quebra das bordas.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Rachaduras sob impacto<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">O S7 absorve melhor os impactos.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Quebra repentina<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">O S7 foi projetado para ferramentas sujeitas a impactos.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Deforma\u00e7\u00e3o pl\u00e1stica sob alta press\u00e3o<\/td><td class=\"has-text-align-left\" data-align=\"left\">Normalmente D2 se o impacto for controlado.<\/td><td class=\"has-text-align-left\" data-align=\"left\">O D2 normalmente apresenta maior dureza e resist\u00eancia \u00e0 compress\u00e3o.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Impacto forte com desgaste moderado<\/td><td class=\"has-text-align-left\" data-align=\"left\">S7<\/td><td class=\"has-text-align-left\" data-align=\"left\">A resist\u00eancia \u00e9 mais importante do que a m\u00e1xima resist\u00eancia ao desgaste.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Desgaste severo com baixo impacto<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">A resist\u00eancia ao desgaste \u00e9 mais importante do que a tenacidade m\u00e1xima.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Se uma ferramenta de D2 <a href=\"https:\/\/aobosteel.com\/pt\/tool-and-die-failure-analysis\/\">lascas ou trincar antes de se desgastar<\/a>, a aplica\u00e7\u00e3o provavelmente precisa de mais tenacidade. O S7 costuma ser a escolha mais segura. Se uma ferramenta de S7 <a href=\"https:\/\/aobosteel.com\/pt\/abrasive-wear-resistant-tool-steels\/\">se desgastar muito rapidamente<\/a> sem lascamento ou trincamento, a aplica\u00e7\u00e3o pode precisar de maior resist\u00eancia ao desgaste. O D2 pode funcionar se a carga de impacto for suficientemente baixa.<\/p>\n\n\n\n<h2 id=\"h-final-selection-advice\" class=\"wp-block-heading\">Recomenda\u00e7\u00f5es finais de sele\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Escolha D2 quando desgaste abrasivo, reten\u00e7\u00e3o de fio, alta dureza de trabalho, resist\u00eancia \u00e0 compress\u00e3o e estabilidade dimensional forem os requisitos principais.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Escolha S7 quando tenacidade ao impacto, resist\u00eancia a lascamento, trincas, quebra s\u00fabita ou um n\u00facleo tenaz importarem mais que a resist\u00eancia m\u00e1xima ao desgaste.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A regra mais simples \u00e9 esta: escolha D2 quando a ferramenta se desgastar antes de quebrar e escolha S7 quando a ferramenta lascar, rachar ou quebrar antes de se desgastar.<\/p>\n\n\n\n<h3 id=\"h-related-pages\" class=\"wp-block-heading\">P\u00e1ginas relacionadas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Compara\u00e7\u00f5es D2:<\/strong> <a href=\"https:\/\/aobosteel.com\/pt\/d2-vs-m2-tool-steel\/\">D2 vs M2<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/d2-steel-vs-4140\/\">D2 vs 4140<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/o1-vs-d2-tool-steel\/\">D2 vs O1<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/d2-vs-a2-tool-steel\/\">D2 vs A2<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/dc53-vs-d2-tool-steel\/\">D2 vs DC53<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/d2-vs-d3-tool-steel\/\">D2 vs D3<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/d2-steel-vs-440c\/\">D2 vs 440C<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P\u00e1ginas de refer\u00eancia:<\/strong> <a href=\"https:\/\/aobosteel.com\/pt\/s7-tool-steel-heat-treatment\/\">Tratamento t\u00e9rmico de a\u00e7o ferramenta S7<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/d2-tool-steel-heat-treatment-guide\/\">Guia de tratamento t\u00e9rmico de a\u00e7o para ferramentas D2<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-size-change-in-heat-treatment\/\">Varia\u00e7\u00e3o dimensional no tratamento t\u00e9rmico<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Fam\u00edlias de s\u00e9ries:<\/strong> <a href=\"https:\/\/aobosteel.com\/pt\/tool-steels\/\">Classes de a\u00e7o para ferramentas<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/d-series-tool-steels\/\">A\u00e7os ferramenta da s\u00e9rie D<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-material-finder\/\">Localizador de materiais de a\u00e7o ferramenta<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os valores de composi\u00e7\u00e3o, dureza e tratamento t\u00e9rmico s\u00e3o valores t\u00edpicos publicados para D2 \/ 1.2379 \/ SKD11 e S7 \/ 1.2355. Confirme a faixa exata com o certificado do fabricante para o lote entregue.<\/p>","protected":false},"excerpt":{"rendered":"<p>D2 vs S7 Tool Steel D2 tool steel is a high-carbon, high-chromium cold work tool steel. Select it when abrasive wear, edge retention, and dimensional stability are the main requirements. S7 is a shock-resisting tool steel. Select it when impact load, chipping, cracking, or sudden breakage is the main risk. Choose D2 when the tool [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15685,"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-15684","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>D2 vs S7 Tool Steel: Wear Resistance or Impact Toughness<\/title>\n<meta name=\"description\" content=\"D2 vs S7 tool steel: abrasive wear resistance against impact toughness. 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Select it when abrasive wear, edge retention, and dimensional stability are the main requirements. S7 is a shock-resisting tool steel. Select it when impact load, chipping, cracking, or sudden breakage is the main risk. 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Select it when abrasive wear, edge retention, and dimensional stability are the main requirements. S7 is a shock-resisting tool steel. Select it when impact load, chipping, cracking, or sudden breakage is the main risk. 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