{"id":9559,"date":"2025-08-05T15:26:19","date_gmt":"2025-08-05T07:26:19","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9559"},"modified":"2026-04-02T13:34:48","modified_gmt":"2026-04-02T05:34:48","slug":"selection-of-steels-for-shears","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/selection-of-steels-for-shears\/","title":{"rendered":"A\u00e7o ferramenta para sele\u00e7\u00e3o de tesouras (S7, D2, H13) | Fornecedor de a\u00e7o Aobo"},"content":{"rendered":"
\n

Sele\u00e7\u00e3o de a\u00e7o ferramenta para tesouras<\/h1>\n\n\n\n

O corte por cisalhamento \u00e9 um processo utilizado para separar chapas, placas ou barras, for\u00e7ando o material a fraturar ao longo de uma linha definida. Durante a opera\u00e7\u00e3o, as l\u00e2minas de corte s\u00e3o submetidas a alta press\u00e3o de contato e deslizamento repetido contra a pe\u00e7a de trabalho.<\/p>\n\n\n\n

Na maioria dos casos, a falha da l\u00e2mina \u00e9 causada por dois mecanismos: desgaste da borda por abras\u00e3o e danos na borda, como lascamento ou desprendimento, devido ao impacto. Sob condi\u00e7\u00f5es de cisalhamento a quente, a exposi\u00e7\u00e3o t\u00e9rmica adicional leva ao amolecimento e ao aparecimento de fissuras na superf\u00edcie, acelerando ainda mais a degrada\u00e7\u00e3o da borda.<\/p>\n\n\n\n

Fatores de sele\u00e7\u00e3o<\/h2>\n\n\n\n

A sele\u00e7\u00e3o de a\u00e7o ferramenta para tesouras requer a adequa\u00e7\u00e3o das propriedades do material ao modo de falha predominante na aplica\u00e7\u00e3o, em vez de buscar apenas a dureza m\u00e1xima.<\/p>\n\n\n\n

Resist\u00eancia ao impacto versus resist\u00eancia ao desgaste
<\/strong>As l\u00e2minas de corte sofrem impactos intermitentes durante o corte, especialmente ao processar se\u00e7\u00f5es espessas ou materiais de alta resist\u00eancia. Se a tenacidade for insuficiente, a aresta de corte pode lascar ou fraturar.
Ao mesmo tempo, o contato deslizante cont\u00ednuo causa desgaste abrasivo. O aumento da dureza melhora a resist\u00eancia ao desgaste, mas reduz a tenacidade. O equil\u00edbrio correto depende de se a falha \u00e9 dominada por lascamento da borda ou por desgaste gradual.<\/p>\n\n\n\n

Resist\u00eancia \u00e0 compress\u00e3o
<\/strong>Durante o corte, a aresta da l\u00e2mina \u00e9 submetida a tens\u00f5es compressivas localizadas extremamente elevadas. Se o a\u00e7o n\u00e3o tiver resist\u00eancia \u00e0 compress\u00e3o suficiente, a aresta deforma-se plasticamente, resultando em arredondamento e perda de precis\u00e3o de corte.<\/p>\n\n\n\n

Estabilidade t\u00e9rmica e resist\u00eancia \u00e0 fadiga
<\/strong>No corte a quente, as l\u00e2minas s\u00e3o repetidamente aquecidas e resfriadas. O a\u00e7o deve manter a dureza em altas temperaturas para evitar desgaste r\u00e1pido e resistir \u00e0 fadiga t\u00e9rmica para prevenir fissuras superficiais. Sem essas propriedades, a falha da borda ocorre rapidamente, mesmo que a dureza inicial seja adequada.<\/p>\n\n\n\n

A\u00e7os para ferramentas recomendados<\/h2>\n\n\n\n
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Fornecedor de a\u00e7o ferramenta AISI S7 | DIN 1.2355<\/h3>\n\n\n\n

O a\u00e7o S7 \u00e9 utilizado em aplica\u00e7\u00f5es onde o impacto \u00e9 a principal causa de falhas. Ele oferece alta tenacidade, o que reduz o risco de lascamento e quebra das arestas sob condi\u00e7\u00f5es de corte intensas ou intermitentes.<\/p>\n\n\n\n

Com uma dureza t\u00edpica de 56\u201358 HRC, o a\u00e7o S7 mant\u00e9m a integridade estrutural sob carga. \u00c9 adequado para se\u00e7\u00f5es espessas, cisalhamento de alto impacto e condi\u00e7\u00f5es em que a falha da l\u00e2mina ocorre repentinamente, em vez de por desgaste gradual. Sua resist\u00eancia ao desgaste \u00e9 inferior \u00e0 dos a\u00e7os de alto carbono para trabalho a frio, portanto, n\u00e3o \u00e9 ideal para materiais altamente abrasivos.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento de materiais S7<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n

A\u00e7o ferramenta AISI D2 | 1.2379 | SKD11<\/h3>\n\n\n\n

O a\u00e7o D2 \u00e9 escolhido quando o desgaste abrasivo \u00e9 o principal fator que limita a vida \u00fatil da l\u00e2mina. Seu alto teor de carbono e cromo forma um grande volume de carbonetos duros, que resistem ao desgaste e mant\u00eam o fio da l\u00e2mina.<\/p>\n\n\n\n

Com dureza de 58\u201360 HRC, o a\u00e7o D2 oferece alta resist\u00eancia \u00e0 compress\u00e3o e forte resist\u00eancia \u00e0 deforma\u00e7\u00e3o da aresta de corte. \u00c9 adequado para longas produ\u00e7\u00f5es envolvendo materiais abrasivos ou condi\u00e7\u00f5es de corte limpas e est\u00e1veis com impacto limitado. Devido \u00e0 sua menor tenacidade, n\u00e3o \u00e9 recomendado para aplica\u00e7\u00f5es onde o lascamento \u00e9 uma falha frequente.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento de materiais D2<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n

A\u00e7o ferramenta AISI S1 | 1.2550 | SKS41<\/h3>\n\n\n\n

O a\u00e7o S1 \u00e9 utilizado quando h\u00e1 presen\u00e7a tanto de cargas de impacto quanto de temperaturas moderadas. Ele oferece um equil\u00edbrio entre tenacidade e resist\u00eancia ao amolecimento em altas temperaturas.<\/p>\n\n\n\n

Dependendo da aplica\u00e7\u00e3o, o a\u00e7o S1 \u00e9 normalmente utilizado com dureza de 54\u201357 HRC para cisalhamento a frio ou 44\u201352 HRC para condi\u00e7\u00f5es mais quentes. \u00c9 adequado para cen\u00e1rios de uso misto onde nem o desgaste nem o impacto, isoladamente, predominam, e onde a\u00e7os para trabalho a frio ou a quente, isoladamente, n\u00e3o proporcionam um desempenho est\u00e1vel.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento de material S1<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n

Fornecedor de a\u00e7o ferramenta H13 | 1.2344 | SKD61<\/h3>\n\n\n\n

O H13 \u00e9 utilizado em opera\u00e7\u00f5es cont\u00ednuas de corte a quente, onde os efeitos da temperatura controlam a vida \u00fatil da ferramenta. Ele mant\u00e9m a dureza em altas temperaturas e resiste \u00e0 fadiga t\u00e9rmica causada por ciclos repetidos de aquecimento e resfriamento.<\/p>\n\n\n\n

Com dureza de 44\u201352 HRC, o a\u00e7o H13 oferece uma combina\u00e7\u00e3o de resist\u00eancia a quente e tenacidade. \u00c9 adequado para contato prolongado com materiais aquecidos, onde a\u00e7os para trabalho a frio amoleceriam rapidamente ou desenvolveriam trincas t\u00e9rmicas.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento de materiais H13<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n

Tabela Resumo<\/h2>\n\n\n\n
A\u00e7o ferramenta de alta qualidade<\/td>Dureza t\u00edpica<\/td>Principal vantagem das tesouras<\/td><\/tr>
AISI S7<\/td>56\u201358 HRC<\/td>Alta resist\u00eancia para aplica\u00e7\u00f5es sujeitas a impactos severos.<\/td><\/tr>
AISI D2<\/td>58\u201360 HRC<\/td>Alta resist\u00eancia ao desgaste para materiais abrasivos<\/td><\/tr>
AISI S1<\/td>44\u201357 HRC<\/td>Desempenho equilibrado em condi\u00e7\u00f5es mistas.<\/td><\/tr>
AISI H13<\/td>44\u201352 HRC<\/td>Estabilidade em ambientes de cisalhamento a quente<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Selection of Tool Steel for Shears Shearing is a process used to separate sheet, plate, or bar stock by forcing material to fracture along a defined line. In operation, shear blades are subjected to high contact pressure and repeated sliding against the workpiece. In most cases, blade failure is driven by two mechanisms: edge wear […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"landing-page","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-9559","page","type-page","status-publish","hentry"],"yoast_head":"\nTool Steel for Shears Selection (S7, D2, H13) | Aobo Steel Supplier<\/title>\n<meta name=\"description\" content=\"Learn how to select tool steel for shear blades based on impact, wear, and temperature conditions. Compare S7, D2, S1, and H13 for different shearing applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/pt\/selection-of-steels-for-shears\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tool Steel for Shears Selection (S7, D2, H13) | Aobo Steel Supplier\" \/>\n<meta property=\"og:description\" content=\"Learn how to select tool steel for shear blades based on impact, wear, and temperature conditions. 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