{"id":6438,"date":"2020-10-20T06:29:04","date_gmt":"2020-10-20T06:29:04","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=6438"},"modified":"2025-06-19T06:46:30","modified_gmt":"2025-06-19T06:46:30","slug":"tipo-de-aco-inoxidavel-dividido-por-estrutura-metalografica","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/tipo-de-aco-inoxidavel-dividido-por-estrutura-metalografica\/","title":{"rendered":"Tipo de a\u00e7o inoxid\u00e1vel: dividido por estrutura metalogr\u00e1fica"},"content":{"rendered":"<p>De modo geral, exceto para algumas ligas, a resist\u00eancia \u00e0 corros\u00e3o do a\u00e7o inoxid\u00e1vel austen\u00edtico \u00e9 relativamente excelente. Em um ambiente de baixa corros\u00e3o, o tipo de a\u00e7o inoxid\u00e1vel ferr\u00edtico pode ser usado. Em um ambiente levemente corrosivo, se for necess\u00e1rio que o material tenha Para alta resist\u00eancia ou alta dureza, podem ser usados a\u00e7o inoxid\u00e1vel martens\u00edtico e a\u00e7o inoxid\u00e1vel endurecido por precipita\u00e7\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"839\" height=\"518\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/stainless-steel-pipe-fittings-supplier.jpg\" alt=\"fornecedor de acess\u00f3rios para tubos de a\u00e7o inoxid\u00e1vel\" class=\"wp-image-6193\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/stainless-steel-pipe-fittings-supplier.jpg 839w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/stainless-steel-pipe-fittings-supplier-300x185.jpg 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/stainless-steel-pipe-fittings-supplier-768x474.jpg 768w\" sizes=\"(max-width: 839px) 100vw, 839px\" \/><\/figure>\n\n\n\n<h2 style=\" font-size:14px\">De acordo com a diferen\u00e7a da estrutura metalogr\u00e1fica, o tipo de a\u00e7o inoxid\u00e1vel pode ser dividido nos seguintes tipos:<\/h2>\n\n\n\n<p><strong>A\u00e7o inoxid\u00e1vel austen\u00edtico<\/strong><br \/>A matriz \u00e9 principalmente de a\u00e7o inoxid\u00e1vel com estrutura de cristal c\u00fabico de face centrada (fase CY) austen\u00edtica, n\u00e3o magn\u00e9tica e principalmente refor\u00e7ada por trabalho a frio (e pode levar a certas propriedades magn\u00e9ticas). O American Iron and Steel Institute usa n\u00fameros nas s\u00e9ries 200 e 300, como 304.<\/p>\n\n\n\n<p><strong>A\u00e7o inoxid\u00e1vel ferr\u00edtico<\/strong><br \/>A matriz \u00e9 principalmente uma estrutura de ferrita com estrutura de cristal c\u00fabico centrado no corpo ((fase a), que \u00e9 magn\u00e9tica e geralmente n\u00e3o pode ser endurecida por tratamento t\u00e9rmico, mas pode ser ligeiramente refor\u00e7ada por trabalho a frio. The American Iron and Steel Institute usa 430 e 446 como r\u00f3tulos.<\/p>\n\n\n\n<p><strong>A\u00e7o inoxid\u00e1vel martens\u00edtico<\/strong><br \/>A matriz \u00e9 um a\u00e7o inoxid\u00e1vel com estrutura de martensita (c\u00fabica ou c\u00fabica centrada no corpo), que \u00e9 magn\u00e9tica, e suas propriedades mec\u00e2nicas podem ser ajustadas por tratamento t\u00e9rmico. O American Iron and Steel Institute \u00e9 marcado com n\u00fameros 410, 420 e 440. A martensita tem uma estrutura de austenita em altas temperaturas e, quando resfriada \u00e0 temperatura ambiente em uma taxa apropriada, a estrutura de austenita pode ser transformada em martensita (isto \u00e9, endurecida).<\/p>\n\n\n\n<p><strong>Austen\u00edtico-ferr\u00edtico (a\u00e7o inoxid\u00e1vel duplex)<\/strong>) <br \/>A matriz tem uma estrutura de duas fases de austenita e ferrita. O conte\u00fado da matriz de fase menor \u00e9 geralmente maior do que o 15%. \u00c9 um a\u00e7o inoxid\u00e1vel que pode ser refor\u00e7ado pelo trabalho a frio. O 329 \u00e9 um a\u00e7o inoxid\u00e1vel duplex t\u00edpico. Em compara\u00e7\u00e3o com o a\u00e7o inoxid\u00e1vel austen\u00edtico, o a\u00e7o de fase dupla tem maior resist\u00eancia e melhorou significativamente a resist\u00eancia a <a href=\"https:\/\/www.kaysuns.com\/pt\/perigo-oculto-da-corrosao-intergranular\/\" target=\"_blank\">corros\u00e3o intergranular<\/a>corros\u00e3o sob tens\u00e3o por cloreto e corros\u00e3o por pite.<\/p>\n\n\n\n<p><strong>A\u00e7o inoxid\u00e1vel endurecido por precipita\u00e7\u00e3o<\/strong><br \/>Um a\u00e7o inoxid\u00e1vel cuja matriz \u00e9 austenita ou martensita e pode ser endurecido por tratamento de endurecimento por precipita\u00e7\u00e3o. O American Iron and Steel Institute usa a s\u00e9rie 600 de n\u00fameros, como 630 ou 17-4PH.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p>Postado por <a href=\"https:\/\/www.kaysuns.com\/pt\/\" target=\"_blank\">fornecedor de acess\u00f3rios para tubos de a\u00e7o inoxid\u00e1vel<\/a>KAYSUNS<\/p>","protected":false},"featured_media":6193,"template":"","categories":[186],"tags":[],"class_list":["post-6438","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Stainless Steel Type: Divided By Metallographic Structure - KAYSUNS<\/title>\n<meta name=\"description\" content=\"According to the difference of metallographic structure, stainless steel type can be divided into austenitic, duplex, etc.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kaysuns.com\/pt\/blog\/tipo-de-aco-inoxidavel-dividido-por-estrutura-metalografica\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stainless Steel Type: Divided By Metallographic Structure - 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