Propriedades gerais dos a\u00e7os para ferramentas | Refer\u00eancia de grau AISI<\/title>\n<meta name=\"description\" content=\"Wear resistance, toughness, hot hardness, working hardness, depth of hardening and grain size for 75 AISI tool steel grades, with heat-treatment notes and hardness data.\">\n<style>\n:root{\n --aobo-accent:#2563eb; --aobo-accent-dark:#1e1e2e; --aobo-blue:#0c56d0; --aobo-blue-dark:#073b91;\n --aobo-text:#333; --aobo-muted:#888; --aobo-border:#e5e7eb; --aobo-border-dark:#ddd;\n --aobo-stripe:#f7f7f9; --aobo-hover:#e8f0fe; --aobo-radius:8px; --aobo-radius-sm:6px;\n --aobo-orange:#f59e0b; --aobo-fill:#e9ecef;\n }*{box-sizing:border-box;}html{-webkit-text-size-adjust:100%;}body{margin:0;background:#fff;color:var(--aobo-text);\n font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,sans-serif;\n font-size:15px;line-height:1.6;}\/* Root scope \u2014 WordPress theme guard *\/ 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ts-props\"><div class=\"aobo-wrap\"><div class=\"ts-hero\"><div class=\"ts-hero-top\"><div class=\"ts-kicker\"><\/span>Dados de sele\u00e7\u00e3o de a\u00e7o ferramenta<\/div><h1>Propriedades gerais dos a\u00e7os para ferramentas<\/h1>Tabela de refer\u00eancia das principais classes de a\u00e7o ferramenta AISI, abrangendo resist\u00eancia ao desgaste, tenacidade, dureza a quente, dureza de trabalho usual, profundidade de t\u00eampera, tamanho de gr\u00e3o e dureza ap\u00f3s t\u00eampera. As classifica\u00e7\u00f5es s\u00e3o compara\u00e7\u00f5es relativas em uma escala de 1 (baixo) a 9 (alto) e representam um ponto de partida pr\u00e1tico na sele\u00e7\u00e3o de uma classe para uma determinada aplica\u00e7\u00e3o em ferramentas.<\/p><\/div><div class=\"ts-tool-area\"><div class=\"ts-legend\"> <\/span>Classifica\u00e7\u00e3o de 1 a 9<\/b> Relativo: 1 = baixo, 9 = alto<\/span> Profundidade de endurecimento:<\/b> S = shallow, M = medium, D = deep · section sizes in the <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-hardenability-chart\/\">hardenability chart<\/a><\/span> Tamanho do gr\u00e3o:<\/b> Padr\u00e3o Shepherd, em dureza m\u00e1xima<\/span> Dureza do n\u00facleo:<\/b> redondo com 25 mm (1 pol.) de di\u00e2metro<\/span><\/div>\n <div class=\"ts-table-wrap\"><table class=\"ts-table\"><thead><tr><th>Grau<\/th><th>Vestir (b)<\/sup><\/th><th>Robustez (c)<\/sup><\/th><th>Dureza quente<\/th><th>Dureza de trabalho, HRC<\/th><th>Profundidade (d)<\/sup><\/th><th>Tamanho do gr\u00e3o (Pastor)<\/sup><\/th><th>HRC de superf\u00edcie<\/th><th>Recursos Humanos Essenciais<\/th><\/tr><\/thead><tbody><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os r\u00e1pidos com molibd\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\">M1<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/m2-tool-steel\/\">M2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, classe 1<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, classe 2<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M4<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">65\u201367<\/td><\/tr><tr><td class=\"ts-grade\">M7<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M10<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M30<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M33<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M34<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/m35-tool-steel\/\">M35<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M36<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M41<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/m42-tool-steel\/\">M42<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M43<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M44<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M46<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201369<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M47<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os r\u00e1pidos intermedi\u00e1rios<\/td><\/tr><tr><td class=\"ts-grade\">M50<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M52<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">62\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os r\u00e1pidos de tungst\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\">T1<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T2<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">65\u201367<\/td><\/tr><tr><td class=\"ts-grade\">T4<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-hr\">63\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T5<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T6<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T8<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T15<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65\u201368<\/td><td class=\"ts-hr\">65\u201368<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os cromados para trabalho a quente<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h10-tool-steel\/\">H10<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">39\u201356<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">52\u201359<\/td><td class=\"ts-hr\">52\u201359<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h11-tool-steel\/\">H11<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201355<\/td><td class=\"ts-hr\">53\u201355<\/td><\/tr><tr><td class=\"ts-grade\">H12<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201355<\/td><td class=\"ts-hr\">53\u201355<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h13-tool-steel\/\">H13<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40\u201353<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">51\u201354<\/td><td class=\"ts-hr\">51\u201354<\/td><\/tr><tr><td class=\"ts-grade\">H14<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40\u201354<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201357<\/td><td class=\"ts-hr\">53\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H19<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">48\u201357<\/td><td class=\"ts-hr\">48\u201357<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a quente com tungst\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h21-tool-steel\/\">H21<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">45\u201363<\/td><td class=\"ts-hr\">45\u201363<\/td><\/tr><tr><td class=\"ts-grade\">H22<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">36\u201354<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">48\u201356<\/td><td class=\"ts-hr\">48\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H23<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">38\u201348<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7<\/td><td class=\"ts-hr\">34\u201340<\/td><td class=\"ts-hr\">34\u201340<\/td><\/tr><tr><td class=\"ts-grade\">H24<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">52\u201356<\/td><td class=\"ts-hr\">52\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H25<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">35\u201345<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">33\u201346<\/td><td class=\"ts-hr\">33\u201346<\/td><\/tr><tr><td class=\"ts-grade\">H26<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">50\u201358<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">51\u201359<\/td><td class=\"ts-hr\">51\u201359<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a quente com molibd\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\">H42<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">45\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-hr\">54\u201362<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os de endurecimento ao ar, de m\u00e9dia liga e para trabalho a frio<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/a2-tool-steel\/\">A2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A3<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A4<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">61\u201363<\/td><\/tr><tr><td class=\"ts-grade\">A5<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201360<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60\u201362<\/td><td class=\"ts-hr\">60\u201362<\/td><\/tr><tr><td class=\"ts-grade\">A6<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201360<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60\u201362<\/td><td class=\"ts-hr\">60\u201362<\/td><\/tr><tr><td class=\"ts-grade\">A7<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">A8<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">48\u201357<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60\u201362<\/td><td class=\"ts-hr\">60\u201362<\/td><\/tr><tr><td class=\"ts-grade\">A9<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40\u201356<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55\u201357<\/td><td class=\"ts-hr\">55\u201357<\/td><\/tr><tr><td class=\"ts-grade\">A10<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">55\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60\u201363<\/td><td class=\"ts-hr\">60\u201363<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a frio com alto teor de carbono e cromo<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/d2-tool-steel\/\">D2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/d3-tool-steel\/\">D3<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">D4<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">D5<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\">D7<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-hr\">64\u201368<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a frio com t\u00eampera em \u00f3leo<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/o1-tool-steel\/\">O1<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/o2-tool-steel\/\">O2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\">O6<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">50\u201355<\/td><\/tr><tr><td class=\"ts-grade\">O7<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os resistentes a choques<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/s1-tool-steel\/\">S1<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">50\u201358<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55\u201358<\/td><td class=\"ts-hr\">55\u201358<\/td><\/tr><tr><td class=\"ts-grade\">S2<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">50\u201360<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">56\u201360<\/td><\/tr><tr><td class=\"ts-grade\">S5<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50\u201360<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">58\u201362<\/td><\/tr><tr><td class=\"ts-grade\">S6<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50\u201356<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">56\u201358<\/td><td class=\"ts-hr\">56\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/s7-tool-steel\/\">S7<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">47\u201357<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">59\u201361<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os especiais de baixa liga<\/td><\/tr><tr><td class=\"ts-grade\">L2<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">56\u201362<\/td><td class=\"ts-hr\">54\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/l6-tool-steel\/\">L6<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-hr\">58\u201362<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para moldes com baixo teor de carbono<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">Para cavidades com cubo e\/ou cementadas<\/td><\/tr><tr><td class=\"ts-grade\">P2 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201364 (e)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (um)<\/span><\/td><td class=\"ts-hr\">15\u201321<\/td><\/tr><tr><td class=\"ts-grade\">P3 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201364 (e)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201364 (um)<\/span><\/td><td class=\"ts-hr\">15\u201321<\/td><\/tr><tr><td class=\"ts-grade\">P4 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201364 (e)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (um)<\/span><\/td><td class=\"ts-hr\">33\u201335<\/td><\/tr><tr><td class=\"ts-grade\">P5 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">50\u201364 (e)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (um)<\/span><\/td><td class=\"ts-hr\">20\u201325<\/td><\/tr><tr><td class=\"ts-grade\">P6 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201361 (e)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">60\u201362 (um)<\/span><\/td><td class=\"ts-hr\">35\u201337<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">Para cavidades usinadas<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/p20-tool-steel\/\">P20 (e)<\/span><\/a><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">30\u201350<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">52\u201354<\/td><td class=\"ts-hr\">45\u201350<\/td><\/tr><tr><td class=\"ts-grade\">P21<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">36\u201339 (e)<\/span><\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">22\u201326<\/td><td class=\"ts-hr\">22\u201326<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para ferramentas de t\u00eampera em \u00e1gua<\/td><\/tr><tr><td class=\"ts-grade\">W1<\/td><td class=\"ts-num\"><\/b><\/i>2\u20134<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3\u20137<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58\u201365<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">38\u201343<\/td><\/tr><tr><td class=\"ts-grade\">W2<\/td><td class=\"ts-num\"><\/b><\/i>2\u20134<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3\u20137<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58\u201365<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">38\u201343<\/td><\/tr><tr><td class=\"ts-grade\">W5<\/td><td class=\"ts-num\"><\/b><\/i>3\u20134<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3\u20137<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58\u201365<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">38\u201343<\/td><\/tr><\/tbody><\/table><\/div><h3 style=\"font-size:1em;margin:1.2em 0 .3em;color:var(--aobo-text);\">Notas e refer\u00eancias<\/h3><ol class=\"ts-notes-list\"><li>(um)<\/sup> A classifica\u00e7\u00e3o varia de 1 (baixo) a 9 (alto).<\/li><li>(b)<\/sup> A resist\u00eancia ao desgaste aumenta com o aumento do teor de carbono.<\/li><li>(c)<\/sup> A tenacidade diminui com o aumento do teor de carbono e da profundidade de endurecimento.<\/li><li>(d)<\/sup> S, raso; M, m\u00e9dio; e D, profundo.<\/li><li>(e)<\/sup> Ap\u00f3s a cementa\u00e7\u00e3o.<\/li><\/ol><figure class=\"ts-fig\"> <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\" alt=\"Gr\u00e1fico da tenacidade em fun\u00e7\u00e3o da dureza a quente e da resist\u00eancia ao desgaste para a\u00e7os ferramenta (Manual ASM, Fig. 6)\" decoding=\"async\" loading=\"lazy\"><figcaption>Gr\u00e1fico da tenacidade em fun\u00e7\u00e3o de (a) dureza a quente e (b) resist\u00eancia ao desgaste para a\u00e7os ferramenta. Os tipos sublinhados indicam a\u00e7os ferramenta com t\u00eampera superficial. A \u00e1rea entre as linhas tracejadas em (b) representa os valores m\u00e9dios.<\/figcaption><\/figure><div class=\"ts-grid\"><div class=\"ts-card\"><h2>M\u00f3dulo de elasticidade dos a\u00e7os para ferramentas<\/h2>Para todos os efeitos pr\u00e1ticos, o m\u00f3dulo de elasticidade de todos os a\u00e7os para ferramentas, em todas as condi\u00e7\u00f5es, \u00e9 de aproximadamente 210 GPa (30 \u00d7 106<\/sup> psi)<\/b> \u00e0 temperatura ambiente. Diminui uniformemente para cerca de 185 GPa (27 \u00d7 106<\/sup> psi)<\/b> a 260 \u00b0C (500 \u00b0F) e cerca de 150 GPa (22 \u00d7 106<\/sup> psi)<\/b> a 540 \u00b0C (1000 \u00b0F).<\/p><\/div><div class=\"ts-card\"><h2>Resist\u00eancia ao desgaste<\/h2>Wear resistance increases with carbon content. At a given hardness, however, it may vary widely depending on the wear mechanism and heat treatment used. Steels with similar hardness can behave very differently under identical wear conditions. The grades that resist wear best are also the hardest to machine, and the <a href=\"\/pt\/tool-steel-machinability-rating-chart\/\">machinability rating chart<\/a> puts a number on that trade-off.<\/p><\/div><div class=\"ts-card\"><h2>Resist\u00eancia e testes<\/h2>At maximum hardness, most tool steels are brittle, so tensile testing rarely gives reliable strength values. Compression, bending and torsion tests are more useful; torsion impact testing gives reproducible data on the effect of composition and heat treatment, particularly for drills and tools loaded in torsion. Where toughness and wear resistance pull in opposite directions, <a href=\"\/pt\/tool-steel-selection-by-application\/\">sele\u00e7\u00e3o por aplica\u00e7\u00e3o<\/a> is the faster route to a grade.<\/p><\/div><\/div><div class=\"ts-disclaimer\"><h3>Escopo do Fornecimento e Nota de Refer\u00eancia T\u00e9cnica<\/h3>Aobo Steel supplies tool steel in round bar and plate form, in annealed condition. Hardening, quenching and tempering are performed by the customer’s heat-treatment facility. The <a href=\"\/pt\/tool-steel-heat-treatment-guide\/\">tool steel heat treatment guide<\/a> covers austenitizing temperatures, soak times and tempering windows for these grades.<\/p>As classifica\u00e7\u00f5es de propriedades e os dados de dureza nesta refer\u00eancia s\u00e3o compara\u00e7\u00f5es relativas compiladas a partir do Manual ASM, Volume 1, Tabela 13. O desempenho real depende do tratamento t\u00e9rmico, da dimens\u00e3o da se\u00e7\u00e3o transversal, da geometria da ferramenta e das condi\u00e7\u00f5es de servi\u00e7o. Sempre verifique as propriedades finais e os procedimentos de tratamento t\u00e9rmico com a sua empresa de tratamento t\u00e9rmico.<\/p><\/div>\n <div class=\"ts-rel\">\n <h3>P\u00e1ginas de refer\u00eancia relacionadas<\/h3>\n <a href=\"\/pt\/tool-steel-composition-chart\/\">Tool steel composition chart<\/a> \u00b7 <a href=\"\/pt\/tool-steel-hot-hardness-chart\/\">Tabela de dureza a quente do a\u00e7o ferramenta<\/a> \u00b7 <a href=\"\/pt\/tool-steel-hardening-tempering-chart\/\">Temperaturas de t\u00eampera e revenido<\/a> \u00b7 <a href=\"\/pt\/tool-steel-machinability-rating-chart\/\">Machinability ratings<\/a> \u00b7 <a href=\"\/pt\/tool-steel-selection-by-application\/\">Selection by application<\/a> \u00b7 <a href=\"\/pt\/tool-steel-equivalent-grades\/\">Grade comparison and equivalents<\/a> \u00b7 <a href=\"\/pt\/tool-steel-hardness-conversion-calculator\/\">Calculadora de convers\u00e3o de dureza<\/a> \u00b7 <a href=\"\/pt\/tool-steel-heat-treatment-guide\/\">Tool steel heat treatment guide<\/a> \u00b7 <a href=\"\/pt\/tool-steel-thermal-conductivity\/\">Tool steel thermal conductivity chart<\/a><\/p>\n <\/div>\n\n <\/div><\/div><\/div>Fonte: Manual da ASM, Volume 1 \u2014 Propriedades e Sele\u00e7\u00e3o: Ferros, A\u00e7os e Ligas de Alto Desempenho, Tabela 13 \u201cPropriedades gerais dos a\u00e7os-ferramenta\u201d (dados para as classes marcadas com \u201ce\u201d ap\u00f3s cementa\u00e7\u00e3o). Dados de refer\u00eancia para compara\u00e7\u00e3o \u2014 verifique o tratamento t\u00e9rmico final com o fornecedor da classe.<\/p><\/section>\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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b{color:var(--aobo-text);font-weight:600;}\/* Disclaimer *\/ .ts-disclaimer{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-accent);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;\n padding:1em 1.2em;}.ts-disclaimer h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);display:flex;align-items:center;gap:6px;}.ts-disclaimer h3::before{content:\"\\2139\";font-size:1em;color:var(--aobo-accent);}.ts-disclaimer p{margin:0 0 .5em;max-width:none;color:var(--aobo-muted);line-height:1.7;}.ts-disclaimer p:last-child{margin-bottom:0;}.ts-source{margin-top:.8em;color:var(--aobo-muted);font-size:.82em;line-height:1.58;}@media (max-width:860px){\n .ts-hero-top,.ts-tool-area{padding:1em;}.ts-hero h1{font-size:1.5rem;}} @media (max-width:520px){\n .ts-hero-top,.ts-tool-area{padding:.8em;}table.ts-table{font-size:.82em;}.ts-table thead th, .ts-table tbody td{padding:.4em .4em;}\n }\n.ts-rel{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-blue);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;padding:1em 1.2em;}\n .ts-rel h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);}\n .ts-rel p{margin:0;font-size:.85em;line-height:1.9;color:var(--aobo-muted);}\n .ts-rel p a{font-weight:600;}\n\n<\/style>\n<\/head>\n<body>\n<section class=\"aobo-ht-ref ts-props\"><div class=\"aobo-wrap\"><div class=\"ts-hero\"><div class=\"ts-hero-top\"><div class=\"ts-kicker\"><\/span>Dados de sele\u00e7\u00e3o de a\u00e7o ferramenta<\/div><h1>Propriedades gerais dos a\u00e7os para ferramentas<\/h1>Tabela de refer\u00eancia das principais classes de a\u00e7o ferramenta AISI, abrangendo resist\u00eancia ao desgaste, tenacidade, dureza a quente, dureza de trabalho usual, profundidade de t\u00eampera, tamanho de gr\u00e3o e dureza ap\u00f3s t\u00eampera. As classifica\u00e7\u00f5es s\u00e3o compara\u00e7\u00f5es relativas em uma escala de 1 (baixo) a 9 (alto) e representam um ponto de partida pr\u00e1tico na sele\u00e7\u00e3o de uma classe para uma determinada aplica\u00e7\u00e3o em ferramentas.<\/p><\/div><div class=\"ts-tool-area\"><div class=\"ts-legend\"> <\/span>Classifica\u00e7\u00e3o de 1 a 9<\/b> Relativo: 1 = baixo, 9 = alto<\/span> Profundidade de endurecimento:<\/b> S = shallow, M = medium, D = deep · section sizes in the <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-hardenability-chart\/\">hardenability chart<\/a><\/span> Tamanho do gr\u00e3o:<\/b> Padr\u00e3o Shepherd, em dureza m\u00e1xima<\/span> Dureza do n\u00facleo:<\/b> redondo com 25 mm (1 pol.) de di\u00e2metro<\/span><\/div>\n <div class=\"ts-table-wrap\"><table class=\"ts-table\"><thead><tr><th>Grau<\/th><th>Vestir (b)<\/sup><\/th><th>Robustez (c)<\/sup><\/th><th>Dureza quente<\/th><th>Dureza de trabalho, HRC<\/th><th>Profundidade (d)<\/sup><\/th><th>Tamanho do gr\u00e3o (Pastor)<\/sup><\/th><th>HRC de superf\u00edcie<\/th><th>Recursos Humanos Essenciais<\/th><\/tr><\/thead><tbody><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os r\u00e1pidos com molibd\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\">M1<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/m2-tool-steel\/\">M2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, classe 1<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, classe 2<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M4<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">65\u201367<\/td><\/tr><tr><td class=\"ts-grade\">M7<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M10<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M30<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M33<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M34<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/m35-tool-steel\/\">M35<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M36<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M41<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/m42-tool-steel\/\">M42<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M43<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M44<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M46<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201369<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M47<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201370<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os r\u00e1pidos intermedi\u00e1rios<\/td><\/tr><tr><td class=\"ts-grade\">M50<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M52<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">62\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os r\u00e1pidos de tungst\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\">T1<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T2<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">65\u201367<\/td><\/tr><tr><td class=\"ts-grade\">T4<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-hr\">63\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T5<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T6<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T8<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">T15<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65\u201368<\/td><td class=\"ts-hr\">65\u201368<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os cromados para trabalho a quente<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h10-tool-steel\/\">H10<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">39\u201356<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">52\u201359<\/td><td class=\"ts-hr\">52\u201359<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h11-tool-steel\/\">H11<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201355<\/td><td class=\"ts-hr\">53\u201355<\/td><\/tr><tr><td class=\"ts-grade\">H12<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201355<\/td><td class=\"ts-hr\">53\u201355<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h13-tool-steel\/\">H13<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40\u201353<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">51\u201354<\/td><td class=\"ts-hr\">51\u201354<\/td><\/tr><tr><td class=\"ts-grade\">H14<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40\u201354<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201357<\/td><td class=\"ts-hr\">53\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H19<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">48\u201357<\/td><td class=\"ts-hr\">48\u201357<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a quente com tungst\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/h21-tool-steel\/\">H21<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">45\u201363<\/td><td class=\"ts-hr\">45\u201363<\/td><\/tr><tr><td class=\"ts-grade\">H22<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">36\u201354<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">48\u201356<\/td><td class=\"ts-hr\">48\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H23<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">38\u201348<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7<\/td><td class=\"ts-hr\">34\u201340<\/td><td class=\"ts-hr\">34\u201340<\/td><\/tr><tr><td class=\"ts-grade\">H24<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40\u201355<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">52\u201356<\/td><td class=\"ts-hr\">52\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H25<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">35\u201345<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">33\u201346<\/td><td class=\"ts-hr\">33\u201346<\/td><\/tr><tr><td class=\"ts-grade\">H26<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">50\u201358<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">51\u201359<\/td><td class=\"ts-hr\">51\u201359<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a quente com molibd\u00eanio<\/td><\/tr><tr><td class=\"ts-grade\">H42<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">45\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-hr\">54\u201362<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os de endurecimento ao ar, de m\u00e9dia liga e para trabalho a frio<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/a2-tool-steel\/\">A2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A3<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A4<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">61\u201363<\/td><\/tr><tr><td class=\"ts-grade\">A5<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201360<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60\u201362<\/td><td class=\"ts-hr\">60\u201362<\/td><\/tr><tr><td class=\"ts-grade\">A6<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201360<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60\u201362<\/td><td class=\"ts-hr\">60\u201362<\/td><\/tr><tr><td class=\"ts-grade\">A7<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">A8<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">48\u201357<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60\u201362<\/td><td class=\"ts-hr\">60\u201362<\/td><\/tr><tr><td class=\"ts-grade\">A9<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40\u201356<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55\u201357<\/td><td class=\"ts-hr\">55\u201357<\/td><\/tr><tr><td class=\"ts-grade\">A10<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">55\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60\u201363<\/td><td class=\"ts-hr\">60\u201363<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a frio com alto teor de carbono e cromo<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/d2-tool-steel\/\">D2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/d3-tool-steel\/\">D3<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">D4<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">D5<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\">D7<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-hr\">64\u201368<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para trabalho a frio com t\u00eampera em \u00f3leo<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/o1-tool-steel\/\">O1<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/o2-tool-steel\/\">O2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\">O6<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">50\u201355<\/td><\/tr><tr><td class=\"ts-grade\">O7<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">58\u201364<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os resistentes a choques<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/s1-tool-steel\/\">S1<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">50\u201358<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55\u201358<\/td><td class=\"ts-hr\">55\u201358<\/td><\/tr><tr><td class=\"ts-grade\">S2<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">50\u201360<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">56\u201360<\/td><\/tr><tr><td class=\"ts-grade\">S5<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50\u201360<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">58\u201362<\/td><\/tr><tr><td class=\"ts-grade\">S6<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50\u201356<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">56\u201358<\/td><td class=\"ts-hr\">56\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/s7-tool-steel\/\">S7<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">47\u201357<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">59\u201361<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os especiais de baixa liga<\/td><\/tr><tr><td class=\"ts-grade\">L2<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">56\u201362<\/td><td class=\"ts-hr\">54\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/l6-tool-steel\/\">L6<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">58\u201363<\/td><td class=\"ts-hr\">58\u201362<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para moldes com baixo teor de carbono<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">Para cavidades com cubo e\/ou cementadas<\/td><\/tr><tr><td class=\"ts-grade\">P2 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201364 (e)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (um)<\/span><\/td><td class=\"ts-hr\">15\u201321<\/td><\/tr><tr><td class=\"ts-grade\">P3 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201364 (e)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201364 (um)<\/span><\/td><td class=\"ts-hr\">15\u201321<\/td><\/tr><tr><td class=\"ts-grade\">P4 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201364 (e)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (um)<\/span><\/td><td class=\"ts-hr\">33\u201335<\/td><\/tr><tr><td class=\"ts-grade\">P5 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">50\u201364 (e)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (um)<\/span><\/td><td class=\"ts-hr\">20\u201325<\/td><\/tr><tr><td class=\"ts-grade\">P6 (e)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201361 (e)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">60\u201362 (um)<\/span><\/td><td class=\"ts-hr\">35\u201337<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">Para cavidades usinadas<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/pt\/p20-tool-steel\/\">P20 (e)<\/span><\/a><\/td><td class=\"ts-num\"><\/b><\/i>1(e)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(e)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">30\u201350<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">52\u201354<\/td><td class=\"ts-hr\">45\u201350<\/td><\/tr><tr><td class=\"ts-grade\">P21<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">36\u201339 (e)<\/span><\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">22\u201326<\/td><td class=\"ts-hr\">22\u201326<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">A\u00e7os para ferramentas de t\u00eampera em \u00e1gua<\/td><\/tr><tr><td class=\"ts-grade\">W1<\/td><td class=\"ts-num\"><\/b><\/i>2\u20134<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3\u20137<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58\u201365<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">38\u201343<\/td><\/tr><tr><td class=\"ts-grade\">W2<\/td><td class=\"ts-num\"><\/b><\/i>2\u20134<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3\u20137<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58\u201365<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">38\u201343<\/td><\/tr><tr><td class=\"ts-grade\">W5<\/td><td class=\"ts-num\"><\/b><\/i>3\u20134<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3\u20137<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58\u201365<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65\u201367<\/td><td class=\"ts-hr\">38\u201343<\/td><\/tr><\/tbody><\/table><\/div><h3 style=\"font-size:1em;margin:1.2em 0 .3em;color:var(--aobo-text);\">Notas e refer\u00eancias<\/h3><ol class=\"ts-notes-list\"><li>(um)<\/sup> A classifica\u00e7\u00e3o varia de 1 (baixo) a 9 (alto).<\/li><li>(b)<\/sup> A resist\u00eancia ao desgaste aumenta com o aumento do teor de carbono.<\/li><li>(c)<\/sup> A tenacidade diminui com o aumento do teor de carbono e da profundidade de endurecimento.<\/li><li>(d)<\/sup> S, raso; M, m\u00e9dio; e D, profundo.<\/li><li>(e)<\/sup> Ap\u00f3s a cementa\u00e7\u00e3o.<\/li><\/ol><figure class=\"ts-fig\"> <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\" alt=\"Gr\u00e1fico da tenacidade em fun\u00e7\u00e3o da dureza a quente e da resist\u00eancia ao desgaste para a\u00e7os ferramenta (Manual ASM, Fig. 6)\" decoding=\"async\" loading=\"lazy\"><figcaption>Gr\u00e1fico da tenacidade em fun\u00e7\u00e3o de (a) dureza a quente e (b) resist\u00eancia ao desgaste para a\u00e7os ferramenta. Os tipos sublinhados indicam a\u00e7os ferramenta com t\u00eampera superficial. A \u00e1rea entre as linhas tracejadas em (b) representa os valores m\u00e9dios.<\/figcaption><\/figure><div class=\"ts-grid\"><div class=\"ts-card\"><h2>M\u00f3dulo de elasticidade dos a\u00e7os para ferramentas<\/h2>Para todos os efeitos pr\u00e1ticos, o m\u00f3dulo de elasticidade de todos os a\u00e7os para ferramentas, em todas as condi\u00e7\u00f5es, \u00e9 de aproximadamente 210 GPa (30 \u00d7 106<\/sup> psi)<\/b> \u00e0 temperatura ambiente. Diminui uniformemente para cerca de 185 GPa (27 \u00d7 106<\/sup> psi)<\/b> a 260 \u00b0C (500 \u00b0F) e cerca de 150 GPa (22 \u00d7 106<\/sup> psi)<\/b> a 540 \u00b0C (1000 \u00b0F).<\/p><\/div><div class=\"ts-card\"><h2>Resist\u00eancia ao desgaste<\/h2>Wear resistance increases with carbon content. At a given hardness, however, it may vary widely depending on the wear mechanism and heat treatment used. Steels with similar hardness can behave very differently under identical wear conditions. The grades that resist wear best are also the hardest to machine, and the <a href=\"\/pt\/tool-steel-machinability-rating-chart\/\">machinability rating chart<\/a> puts a number on that trade-off.<\/p><\/div><div class=\"ts-card\"><h2>Resist\u00eancia e testes<\/h2>At maximum hardness, most tool steels are brittle, so tensile testing rarely gives reliable strength values. Compression, bending and torsion tests are more useful; torsion impact testing gives reproducible data on the effect of composition and heat treatment, particularly for drills and tools loaded in torsion. Where toughness and wear resistance pull in opposite directions, <a href=\"\/pt\/tool-steel-selection-by-application\/\">sele\u00e7\u00e3o por aplica\u00e7\u00e3o<\/a> is the faster route to a grade.<\/p><\/div><\/div><div class=\"ts-disclaimer\"><h3>Escopo do Fornecimento e Nota de Refer\u00eancia T\u00e9cnica<\/h3>Aobo Steel supplies tool steel in round bar and plate form, in annealed condition. Hardening, quenching and tempering are performed by the customer’s heat-treatment facility. The <a href=\"\/pt\/tool-steel-heat-treatment-guide\/\">tool steel heat treatment guide<\/a> covers austenitizing temperatures, soak times and tempering windows for these grades.<\/p>As classifica\u00e7\u00f5es de propriedades e os dados de dureza nesta refer\u00eancia s\u00e3o compara\u00e7\u00f5es relativas compiladas a partir do Manual ASM, Volume 1, Tabela 13. O desempenho real depende do tratamento t\u00e9rmico, da dimens\u00e3o da se\u00e7\u00e3o transversal, da geometria da ferramenta e das condi\u00e7\u00f5es de servi\u00e7o. Sempre verifique as propriedades finais e os procedimentos de tratamento t\u00e9rmico com a sua empresa de tratamento t\u00e9rmico.<\/p><\/div>\n <div class=\"ts-rel\">\n <h3>P\u00e1ginas de refer\u00eancia relacionadas<\/h3>\n <a href=\"\/pt\/tool-steel-composition-chart\/\">Tool steel composition chart<\/a> \u00b7 <a href=\"\/pt\/tool-steel-hot-hardness-chart\/\">Tabela de dureza a quente do a\u00e7o ferramenta<\/a> \u00b7 <a href=\"\/pt\/tool-steel-hardening-tempering-chart\/\">Temperaturas de t\u00eampera e revenido<\/a> \u00b7 <a href=\"\/pt\/tool-steel-machinability-rating-chart\/\">Machinability ratings<\/a> \u00b7 <a href=\"\/pt\/tool-steel-selection-by-application\/\">Selection by application<\/a> \u00b7 <a href=\"\/pt\/tool-steel-equivalent-grades\/\">Grade comparison and equivalents<\/a> \u00b7 <a href=\"\/pt\/tool-steel-hardness-conversion-calculator\/\">Calculadora de convers\u00e3o de dureza<\/a> \u00b7 <a href=\"\/pt\/tool-steel-heat-treatment-guide\/\">Tool steel heat treatment guide<\/a> \u00b7 <a href=\"\/pt\/tool-steel-thermal-conductivity\/\">Tool steel thermal conductivity chart<\/a><\/p>\n <\/div>\n\n <\/div><\/div><\/div>Fonte: Manual da ASM, Volume 1 \u2014 Propriedades e Sele\u00e7\u00e3o: Ferros, A\u00e7os e Ligas de Alto Desempenho, Tabela 13 \u201cPropriedades gerais dos a\u00e7os-ferramenta\u201d (dados para as classes marcadas com \u201ce\u201d ap\u00f3s cementa\u00e7\u00e3o). Dados de refer\u00eancia para compara\u00e7\u00e3o \u2014 verifique o tratamento t\u00e9rmico final com o fornecedor da classe.<\/p><\/section>\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9 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