{"id":4239,"date":"2026-03-25T08:40:25","date_gmt":"2026-03-25T08:40:25","guid":{"rendered":"https:\/\/pfmscreen.com\/?p=4239"},"modified":"2026-03-31T07:56:33","modified_gmt":"2026-03-31T07:56:33","slug":"composicao-quimica-propriedades-mecanicas-e-especificacoes-da-malha-de-arame-de-aco-inoxidavel-duplex","status":"publish","type":"post","link":"https:\/\/pfmscreen.com\/pt\/blogs\/duplex-stainless-steel-wire-mesh-chemical-composition-mechanical-properties-specifications\/","title":{"rendered":"Tela de arame duplex de a\u00e7o inoxid\u00e1vel: composi\u00e7\u00e3o qu\u00edmica, propriedades mec\u00e2nicas e especifica\u00e7\u00f5es."},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-introduction\">Introdu\u00e7\u00e3o<\/h2>\n\n\n\n<p>A tela de arame duplex de a\u00e7o inoxid\u00e1vel \u00e9 um material de alto desempenho amplamente utilizado em aplica\u00e7\u00f5es industriais exigentes. Este guia completo aborda sua composi\u00e7\u00e3o qu\u00edmica, propriedades mec\u00e2nicas e especifica\u00e7\u00f5es t\u00e9cnicas para ajud\u00e1-lo a entender por que ela \u00e9 a escolha preferida para aplica\u00e7\u00f5es cr\u00edticas de filtra\u00e7\u00e3o e estruturais.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"600\" src=\"https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1.jpg\" alt=\"Malha de arame duplex de a\u00e7o inoxid\u00e1vel\" class=\"wp-image-4241\" srcset=\"https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1.jpg 1000w, https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1-300x180.jpg 300w, https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1-768x461.jpg 768w, https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1-18x12.jpg 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Malha de arame duplex de a\u00e7o inoxid\u00e1vel<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-duplex-stainless-steel-wire-mesh\">O que \u00e9 uma tela de arame de a\u00e7o inoxid\u00e1vel duplex?<\/h2>\n\n\n\n<p>A tela de arame duplex de a\u00e7o inoxid\u00e1vel \u00e9 tecida a partir de fios de liga que combinam microestruturas austen\u00edticas e ferr\u00edticas. Essa estrutura bif\u00e1sica exclusiva proporciona resist\u00eancia superior e maior resist\u00eancia \u00e0 corros\u00e3o em compara\u00e7\u00e3o com os a\u00e7os inoxid\u00e1veis padr\u00e3o. A adi\u00e7\u00e3o de molibd\u00eanio (Mo) aprimora ainda mais seu desempenho em ambientes agressivos.<\/p>\n\n\n\n<p>As duas s\u00e9ries principais s\u00e3o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>UNS S32750 (2507)<\/strong>Super duplex com excelente resist\u00eancia \u00e0 corros\u00e3o por cloretos<\/li>\n\n\n\n<li><strong>UNS S31803 (2205)<\/strong>Duplex padr\u00e3o com propriedades equilibradas<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-chemical-composition\">Composi\u00e7\u00e3o Qu\u00edmica<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Elemento<\/th><th>UNS S32750 (%)<\/th><th>UNS S31803 (%)<\/th><\/tr><tr><td>Cromo (Cr)<\/td><td>24,0 \u2013 26,0<\/td><td>21,0 \u2013 23,0<\/td><\/tr><tr><td>N\u00edquel (Ni)<\/td><td>6,0 \u2013 8,0<\/td><td>4,5 \u2013 6,5<\/td><\/tr><tr><td>Molibd\u00eanio (Mo)<\/td><td>3,0 \u2013 5,0<\/td><td>2,5 \u2013 3,5<\/td><\/tr><tr><td>Nitrog\u00eanio (N)<\/td><td>0,24 \u2013 0,32<\/td><td>0,08 \u2013 0,20<\/td><\/tr><tr><td>Mangan\u00eas (Mn)<\/td><td>\u2264 1,2<\/td><td>\u2264 2,0<\/td><\/tr><tr><td>Carbono (C)<\/td><td>\u2264 0,030<\/td><td>\u2264 0,030<\/td><\/tr><tr><td>Sil\u00edcio (Si)<\/td><td>\u2264 0,8<\/td><td>\u2264 1,0<\/td><\/tr><tr><td>F\u00f3sforo (P)<\/td><td>\u2264 0,035<\/td><td>\u2264 0,030<\/td><\/tr><tr><td>Enxofre (S)<\/td><td>\u2264 0,020<\/td><td>\u2264 0,020<\/td><\/tr><tr><td>Ferro (Fe)<\/td><td>Equil\u00edbrio<\/td><td>Equil\u00edbrio<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>O elevado teor de cr\u00f3mio, molibd\u00e9nio e azoto proporciona uma resist\u00eancia excecional \u00e0 corros\u00e3o por pites, \u00e0 corros\u00e3o em frestas e ao fissuramento por corros\u00e3o sob tens\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-mechanical-properties\">Propriedades Mec\u00e2nicas<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Propriedade<\/th><th>UNS S32750<\/th><th>UNS S31803<\/th><th>Unidade<\/th><\/tr><tr><td>Resist\u00eancia \u00e0 trac\u00e7\u00e3o<\/td><td>\u2265 795<\/td><td>\u2265 620<\/td><td>MPa<\/td><\/tr><tr><td>Limite de escoamento (deslocamento de 0,2%)<\/td><td>\u2265 550<\/td><td>\u2265 450<\/td><td>MPa<\/td><\/tr><tr><td>Alongamento (em 50 mm)<\/td><td>\u2265 15<\/td><td>\u2265 25<\/td><td>%<\/td><\/tr><tr><td>Dureza (Brinell)<\/td><td>\u2264 293<\/td><td>\u2264 290<\/td><td>HB<\/td><\/tr><tr><td>Resist\u00eancia ao impacto (Charpy V)<\/td><td>\u2265 60<\/td><td>\u2265 45<\/td><td>J a -46\u00b0C<\/td><\/tr><tr><td>M\u00f3dulo de Elasticidade<\/td><td>~200<\/td><td>~200<\/td><td>GPa<\/td><\/tr><tr><td>Condutividade t\u00e9rmica<\/td><td>14<\/td><td>19<\/td><td>W\/m\u00b7K a 100\u00b0C<\/td><\/tr><tr><td>Coeficiente de Expans\u00e3o T\u00e9rmica<\/td><td>13.5<\/td><td>13<\/td><td>\u00b5m\/m\u00b7K (20\u2013100\u00b0C)<\/td><\/tr><tr><td>Densidade<\/td><td>7.8<\/td><td>7.8<\/td><td>g\/cm\u00b3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>O a\u00e7o UNS S32750 oferece maior resist\u00eancia e melhor tenacidade a baixas temperaturas, enquanto o UNS S31803 proporciona alongamento e condutividade t\u00e9rmica superiores.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-weave-patterns\">Padr\u00f5es de tecelagem<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-plain-weave\">Ponto de tafet\u00e1<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Padr\u00e3o mais simples e mais comum<\/li>\n\n\n\n<li>Cada fio passa alternadamente por cima e por baixo de um fio.<\/li>\n\n\n\n<li>Bom equil\u00edbrio entre filtra\u00e7\u00e3o e vaz\u00e3o.<\/li>\n\n\n\n<li>Adequado para aplica\u00e7\u00f5es de uso geral.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-twill-weave\">Tecido sarja<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cada fio passa por cima de dois fios e por baixo de dois fios.<\/li>\n\n\n\n<li>Cria uma apar\u00eancia diagonal<\/li>\n\n\n\n<li>Malha mais fechada com aberturas menores<\/li>\n\n\n\n<li>Taxas de fluxo mais elevadas devido ao aumento da \u00e1rea aberta.<\/li>\n\n\n\n<li>Ideal para melhorar a reten\u00e7\u00e3o de part\u00edculas.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-advantages\">Principais vantagens<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Resist\u00eancia excepcional \u00e0 corros\u00e3o<\/strong><br><br>Excelente resist\u00eancia a \u00e1cidos org\u00e2nicos e inorg\u00e2nicos, especialmente cloretos e \u00e1cido clor\u00eddrico dilu\u00eddo.<\/li>\n\n\n\n<li><strong>Resist\u00eancia mec\u00e2nica excepcional<\/strong><br><br>Alta resist\u00eancia \u00e0 tra\u00e7\u00e3o e compress\u00e3o, adequada para ambientes de alta press\u00e3o e impacto.<\/li>\n\n\n\n<li><strong>Resist\u00eancia superior \u00e0 corros\u00e3o por pites e frestas<\/strong><br><br>Ideal para ambientes marinhos e qu\u00edmicos propensos \u00e0 corros\u00e3o localizada.<\/li>\n\n\n\n<li><strong>Boa soldabilidade e fabrica\u00e7\u00e3o<\/strong><br><br>Facilmente mold\u00e1vel e sold\u00e1vel para estruturas e sistemas complexos.<\/li>\n\n\n\n<li><strong>Estabilidade t\u00e9rmica<\/strong><br><br>Baixa expans\u00e3o t\u00e9rmica e alta condutividade t\u00e9rmica para uso em ambientes de alta temperatura ou com ciclos t\u00e9rmicos.<\/li>\n\n\n\n<li><strong>Longa vida \u00fatil<\/strong><br><br>Redu\u00e7\u00e3o dos custos de manuten\u00e7\u00e3o e substitui\u00e7\u00e3o em opera\u00e7\u00f5es industriais cr\u00edticas.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-applications-by-grade\">Aplica\u00e7\u00f5es por n\u00edvel de escolaridade<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-uns-s32750-applications\">Aplica\u00e7\u00f5es UNS S32750<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Componentes estruturais e de filtragem para a ind\u00fastria de petr\u00f3leo e g\u00e1s<\/li>\n\n\n\n<li>Filtros e bombas para dessaliniza\u00e7\u00e3o de \u00e1gua do mar<\/li>\n\n\n\n<li>Unidades de usinas de energia e torres de absor\u00e7\u00e3o qu\u00edmica<\/li>\n\n\n\n<li>Vasos de press\u00e3o e tanques de armazenamento<\/li>\n\n\n\n<li>Plataformas offshore e sistemas de \u00e1gua do mar<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-uns-s31803-applications\">Aplica\u00e7\u00f5es UNS S31803<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filtra\u00e7\u00e3o na ind\u00fastria de celulose e papel<\/li>\n\n\n\n<li>filtros de processo petroqu\u00edmico<\/li>\n\n\n\n<li>Equipamentos e componentes para processamento de alimentos<\/li>\n\n\n\n<li>Sistemas de tratamento e purifica\u00e7\u00e3o de \u00e1guas residuais<\/li>\n\n\n\n<li>Sistemas de branqueamento e secagem de papel<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>A tela de arame duplex de a\u00e7o inoxid\u00e1vel oferece uma combina\u00e7\u00e3o ideal de resist\u00eancia, resist\u00eancia \u00e0 corros\u00e3o e custo-benef\u00edcio. Seja qual for a sua escolha, UNS S32750 para ambientes extremos ou UNS S31803 para aplica\u00e7\u00f5es industriais em geral, este material proporciona desempenho confi\u00e1vel em condi\u00e7\u00f5es exigentes.<\/p>\n\n\n\n<p>Para solu\u00e7\u00f5es personalizadas e suporte t\u00e9cnico, entre em contato com nossa equipe de engenharia para discutir suas necessidades espec\u00edficas.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Sobre a tela PFM<\/strong><\/p>\n\n\n\n<p>A PFM SCREEN \u00e9 uma fabricante l\u00edder de telas met\u00e1licas industriais e elementos filtrantes. Com mais de 30 anos de experi\u00eancia, fornecemos telas de a\u00e7o inoxid\u00e1vel duplex de alta qualidade para as ind\u00fastrias de petr\u00f3leo e g\u00e1s, processamento qu\u00edmico, mar\u00edtima e aliment\u00edcia em todo o mundo.<\/p>\n\n\n\n<p>\ud83d\udcde <strong>Telefone<\/strong>: +86-316-2188808<br>\n\ud83d\udcf1 <strong>WhatsApp<\/strong>: +86-15369379157<br>\n\ud83d\udce7 <strong>E-mail<\/strong>: sales@pfmscreen.com<br>\n\ud83c\udf10 <strong>Site<\/strong>: https:\/\/www.pfmscreen.com\/<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Duplex stainless steel wire mesh is a high-performance material widely used in demanding industrial applications. This comprehensive guide covers its chemical composition, mechanical properties, and technical specifications to help you understand why it&#8217;s the preferred choice for critical filtration and structural applications. What is Duplex Stainless Steel Wire Mesh? Duplex stainless steel wire mesh [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4241,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-4239","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Duplex Stainless Steel Wire Mesh: Chemical Composition, Mechanical Properties &amp; Specifications - PFM Screen | Industrial Metal Wire Mesh &amp; Mesh Filters Manufacturer<\/title>\n<meta name=\"description\" content=\"Duplex stainless steel wire mesh is a high-performance material widely used in demanding industrial applications. 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