{"id":5257,"date":"2019-09-12T02:32:48","date_gmt":"2019-09-12T02:32:48","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=5257"},"modified":"2025-10-09T06:43:32","modified_gmt":"2025-10-09T06:43:32","slug":"caracteristicas-dos-acos-inoxidaveis-da-serie-300","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/caracteristicas-dos-acos-inoxidaveis-da-serie-300\/","title":{"rendered":"Caracter\u00edsticas dos a\u00e7os inoxid\u00e1veis da s\u00e9rie 300"},"content":{"rendered":"<h2>O tubo Duplex 2205 \u00e9 mais resistente \u00e0 corros\u00e3o do que o a\u00e7o inoxid\u00e1vel da s\u00e9rie 300<\/h2>\n<p><a href=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/09\/IMG_20160713_0917291.jpg\" target=\"_blank\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-5258\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/09\/IMG_20160713_0917291.jpg\" alt=\"tubo duplex 2205\" width=\"1000\" height=\"534\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/09\/IMG_20160713_0917291.jpg 1000w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/09\/IMG_20160713_0917291-300x160.jpg 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/09\/IMG_20160713_0917291-768x410.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<h3><strong>Resist\u00eancia \u00e0 corros\u00e3o<\/strong><\/h3>\n<p>Resist\u00eancia \u00e0 corros\u00e3o de <a href=\"https:\/\/www.kaysuns.com\/pt\/duplex-2205-stainless-steel-pipe\/\" target=\"_blank\">tubo duplex 2205<\/a> \u00e9 melhor que o tubo de a\u00e7o inoxid\u00e1vel 304, com boa resist\u00eancia \u00e0 corros\u00e3o na produ\u00e7\u00e3o de celulose e papel. Al\u00e9m disso, o a\u00e7o inoxid\u00e1vel 316 tamb\u00e9m \u00e9 resistente \u00e0 eros\u00e3o por ambientes marinhos e industriais agressivos.<\/p>\n<h3><strong>Resist\u00eancia ao calor<\/strong><\/h3>\n<p>O a\u00e7o inoxid\u00e1vel 316 tem boa resist\u00eancia \u00e0 oxida\u00e7\u00e3o em uso intermitente abaixo de 1600 \u00b0 C e uso cont\u00ednuo abaixo de 1700 \u00b0 C. Na faixa de 800-1575 graus, \u00e9 prefer\u00edvel n\u00e3o aplicar continuamente o a\u00e7o inoxid\u00e1vel 316, mas quando o a\u00e7o inoxid\u00e1vel 316 \u00e9 usado continuamente fora dessa faixa de temperatura, o a\u00e7o inoxid\u00e1vel tem boa resist\u00eancia ao calor. O a\u00e7o inoxid\u00e1vel 316L tem melhor resist\u00eancia \u00e0 precipita\u00e7\u00e3o de carboneto do que o a\u00e7o inoxid\u00e1vel 316 e pode ser usado na faixa de temperatura acima.<\/p>\n<h3><strong>Tratamento t\u00e9rmico<\/strong><\/h3>\n<p>O recozimento \u00e9 realizado a uma temperatura variando de 1850 a 2050 graus, seguido por recozimento r\u00e1pido e resfriamento r\u00e1pido. O a\u00e7o inoxid\u00e1vel 316 n\u00e3o pode ser endurecido por tratamento t\u00e9rmico.<\/p>\n<h3><strong>Soldagem<\/strong><\/h3>\n<p>O a\u00e7o inoxid\u00e1vel 316 tem boas propriedades de soldagem. Todos os m\u00e9todos de soldagem padr\u00e3o podem ser usados para soldagem. Na soldagem, podem ser usadas hastes de enchimento ou hastes de solda de a\u00e7o inoxid\u00e1vel 316Cb, 316L ou 309Cb, de acordo com a aplica\u00e7\u00e3o. Para obter a melhor resist\u00eancia \u00e0 corros\u00e3o, a se\u00e7\u00e3o soldada do a\u00e7o inoxid\u00e1vel 316 requer <a href=\"https:\/\/www.kaysuns.com\/pt\/corrosao-pos-soldagem\/\" target=\"_blank\" rel=\"noopener\">p\u00f3s-soldagem<\/a> recozimento. Se for usado a\u00e7o inoxid\u00e1vel 316L, o recozimento p\u00f3s-soldagem n\u00e3o \u00e9 necess\u00e1rio.<\/p>\n<p>304 \u00e9 um a\u00e7o inoxid\u00e1vel vers\u00e1til amplamente utilizado para fazer equipamentos e pe\u00e7as que requerem bom desempenho geral (resist\u00eancia \u00e0 corros\u00e3o e conformabilidade).<\/p>\n<p>O a\u00e7o inoxid\u00e1vel 301 exibe um endurecimento por trabalho significativo durante a deforma\u00e7\u00e3o e \u00e9 usado em uma variedade de aplica\u00e7\u00f5es onde \u00e9 necess\u00e1ria maior resist\u00eancia.<\/p>\n<p>O a\u00e7o inoxid\u00e1vel 302 \u00e9 essencialmente uma variante do a\u00e7o inoxid\u00e1vel 304 com um teor de carbono mais elevado, o que lhe confere uma maior resist\u00eancia. <a href=\"https:\/\/www.kaysuns.com\/pt\/processo-de-laminacao-a-frio\/\" target=\"_blank\" rel=\"noopener\">lamina\u00e7\u00e3o a frio<\/a>.<\/p>\n<p>302B \u00e9 um a\u00e7o inoxid\u00e1vel com alto teor de sil\u00edcio com alta resist\u00eancia \u00e0 oxida\u00e7\u00e3o em alta temperatura.<\/p>\n<p>303 e 303Se s\u00e3o a\u00e7os inoxid\u00e1veis de corte livre contendo enxofre e sel\u00eanio, respectivamente, para aplica\u00e7\u00f5es onde os principais requisitos s\u00e3o corte f\u00e1cil e alto brilho. O a\u00e7o inoxid\u00e1vel 303Se tamb\u00e9m \u00e9 utilizado para fazer pe\u00e7as que exigem entusiasmo, pois nessas condi\u00e7\u00f5es esse a\u00e7o inoxid\u00e1vel apresenta boa trabalhabilidade a quente.<\/p>\n<p>O 304L \u00e9 uma variante do a\u00e7o inoxid\u00e1vel 304 com menor teor de carbono para aplica\u00e7\u00f5es que exigem solda. O menor teor de carbono minimiza a precipita\u00e7\u00e3o de carbonetos na zona afetada pelo calor perto da solda, o que pode resultar em <a href=\"https:\/\/www.kaysuns.com\/pt\/perigo-oculto-da-corrosao-intergranular\/\" target=\"_blank\" rel=\"noopener\">corros\u00e3o intergranular<\/a> (eros\u00e3o da solda) em determinados ambientes.<\/p>\n<p>304N \u00e9 um a\u00e7o inoxid\u00e1vel contendo nitrog\u00eanio adicionado para aumentar a resist\u00eancia do a\u00e7o.<\/p>\n<p>Os a\u00e7os inoxid\u00e1veis 305 e 384 cont\u00eam alto teor de n\u00edquel e baixa taxa de endurecimento por trabalho, tornando-os adequados para uma ampla gama de aplica\u00e7\u00f5es onde a conformabilidade a frio \u00e9 cr\u00edtica.<\/p>\n<p>O a\u00e7o inoxid\u00e1vel 308 \u00e9 usado para fazer eletrodos.<\/p>\n<p>Os teores de n\u00edquel e cromo dos a\u00e7os inoxid\u00e1veis 309, 310, 314 e 330 s\u00e3o relativamente altos para melhorar a resist\u00eancia \u00e0 oxida\u00e7\u00e3o e a resist\u00eancia \u00e0 flu\u00eancia do a\u00e7o em altas temperaturas. Os a\u00e7os 30S5 e <a href=\"https:\/\/www.kaysuns.com\/pt\/o-que-e-o-aco-inoxidavel-310s\/\" target=\"_blank\" rel=\"noopener\">310S<\/a> s\u00e3o variantes dos a\u00e7os inoxid\u00e1veis 309 e 310, exceto pelo menor teor de carbono, a fim de minimizar os carbonetos precipitados perto da solda. O a\u00e7o inoxid\u00e1vel 330 tem uma resist\u00eancia particularmente alta \u00e0 cementa\u00e7\u00e3o e ao choque t\u00e9rmico.<\/p>\n<p>Os tipos 316 e 317 de a\u00e7o inoxid\u00e1vel cont\u00eam alum\u00ednio e, portanto, s\u00e3o muito mais resistentes \u00e0 corros\u00e3o por pite em ambientes marinhos e industriais qu\u00edmicos do que o a\u00e7o inoxid\u00e1vel 304. Entre eles, 316 variantes de a\u00e7o inoxid\u00e1vel incluem a\u00e7o inoxid\u00e1vel de baixo carbono 316L, a\u00e7o inoxid\u00e1vel de alta resist\u00eancia contendo nitrog\u00eanio 316N e a\u00e7o inoxid\u00e1vel de corte livre com alto teor de enxofre 316F.<\/p>\n<p>321, 347 e 348 s\u00e3o de a\u00e7o inoxid\u00e1vel estabilizado por tit\u00e2nio, ni\u00f3bio e t\u00e2ntalo, respectivamente, e s\u00e3o adequados para uso como membros soldados em altas temperaturas. 348 \u00e9 um a\u00e7o inoxid\u00e1vel adequado para a ind\u00fastria de energia nuclear, que possui certas restri\u00e7\u00f5es quanto \u00e0 combina\u00e7\u00e3o de sondagem e perfura\u00e7\u00e3o.<\/p>","protected":false},"featured_media":5258,"template":"","categories":[186],"tags":[],"class_list":["post-5257","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>Characteristics of 300 Series Stainless Steels - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\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\/caracteristicas-dos-acos-inoxidaveis-da-serie-300\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Characteristics of 300 Series Stainless Steels - Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"og:description\" content=\"Duplex 2205 pipe is more corrosion resistant than 300 series stainless steel Corrosion resistance Corrosion resistance of duplex 2205 pipe is better than 304 stainless steel pipe, with good corrosion resistance in the production of pulp and paper. 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