{"id":15193,"date":"2024-07-06T03:26:56","date_gmt":"2024-07-06T03:26:56","guid":{"rendered":"https:\/\/daxuns.com\/?p=15193"},"modified":"2025-04-24T14:43:08","modified_gmt":"2025-04-24T06:43:08","slug":"detailed-introduction-to-types-and-types-of-stainless-steel","status":"publish","type":"post","link":"https:\/\/daxuns.com\/pt\/detailed-introduction-to-types-and-types-of-stainless-steel\/","title":{"rendered":"Introdu\u00e7\u00e3o pormenorizada aos tipos e tipos de a\u00e7o inoxid\u00e1vel"},"content":{"rendered":"

O a\u00e7o inoxid\u00e1vel \u00e9 uma liga \u00e0 base de ferro que cont\u00e9m pelo menos 10,5% de cr\u00f3mio. O cr\u00f3mio forma uma camada protetora de \u00f3xido de cr\u00f3mio na superf\u00edcie, impedindo a penetra\u00e7\u00e3o da ferrugem no ferro.\u00a0classes de estrutura duplex<\/strong>\u00a0e\u00a0classes \u00fanicas de tratamento t\u00e9rmico<\/strong>, que se enquadram na mesma categoria geral para a maioria dos tipos. O sistema de numera\u00e7\u00e3o divide o a\u00e7o inoxid\u00e1vel em cinco categorias: martens\u00edticos, austen\u00edticos, ferr\u00edticos, duplex e de endurecimento por precipita\u00e7\u00e3o<\/strong>.Neste artigo, vamos analisar os diferentes tipos de a\u00e7o inoxid\u00e1vel.<\/p>\n

A\u00e7o inoxid\u00e1vel martens\u00edtico<\/strong><\/span><\/h3>\n

Os a\u00e7os inoxid\u00e1veis martens\u00edticos s\u00e3o uma classe de a\u00e7o inoxid\u00e1vel cujas propriedades podem ser ajustadas atrav\u00e9s de tratamento t\u00e9rmico (t\u00eampera, revenido). Estes a\u00e7os s\u00e3o constitu\u00eddos principalmente por ferro e carbono (at\u00e9 ~2 wt.%), com um teor de cr\u00f3mio que varia entre 10,5% e 18% e um teor de carbono que n\u00e3o excede 1,2%.<\/p>\n

Para\u00a0Grau 403<\/strong>, Se o a\u00e7o inoxid\u00e1vel da s\u00e9rie 403 for endurec\u00edvel, n\u00e3o s\u00e3o especificados par\u00e2metros adicionais - \u00e9 um a\u00e7o inoxid\u00e1vel martens\u00edtico b\u00e1sico. Outros a\u00e7os martens\u00edticos (por exemplo, 403, 410 e a s\u00e9rie 400) s\u00e3o considerados endurec\u00edveis.<\/p>\n

Aplica\u00e7\u00f5es:<\/strong><\/p>\n

    \n
  • \n

    Motores a jato<\/p>\n<\/li>\n

  • \n

    Turbinas a g\u00e1s<\/p>\n<\/li>\n

  • \n

    Componentes da v\u00e1lvula<\/p>\n<\/li>\n

  • \n

    Talheres<\/p>\n<\/li>\n

  • \n

    Equipamento petroqu\u00edmico<\/p>\n<\/li>\n<\/ul>\n

    Principais propriedades mec\u00e2nicas:<\/strong><\/p>\n

      \n
    • \n

      Taxa moderada de endurecimento por trabalho<\/p>\n<\/li>\n

    • \n

      Trat\u00e1vel termicamente<\/p>\n<\/li>\n

    • \n

      Boa ductilidade e tenacidade<\/p>\n<\/li>\n

    • \n

      Elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/p>\n<\/li>\n

    • \n

      Boa resist\u00eancia \u00e0 flu\u00eancia e \u00e0 fadiga<\/p>\n<\/li>\n

    • \n

      Magn\u00e9tico<\/p>\n<\/li>\n<\/ul>\n

      \n

      A\u00e7o inoxid\u00e1vel austen\u00edtico<\/strong><\/span><\/h3>\n

      O a\u00e7o inoxid\u00e1vel austen\u00edtico, o tipo mais comum de liga de cr\u00f3mio, tem uma\u00a0c\u00fabico de face centrada (FCC)<\/strong>\u00a0estrutura cristalina, semelhante \u00e0 do ferro de alta temperatura. Os principais elementos de liga s\u00e3o\u00a0cr\u00f3mio-n\u00edquel (Cr-Ni)<\/strong>\u00a0e\u00a0cr\u00f3mio-mangan\u00eas-nitrog\u00e9nio (Cr-Mn-N)<\/strong>, categorizados por aplica\u00e7\u00e3o.<\/p>\n

      Composi\u00e7\u00e3o:<\/strong><\/p>\n

        \n
      • \n

        16-26% cr\u00f3mio<\/p>\n<\/li>\n

      • \n

        \u22640,15% carbono<\/p>\n<\/li>\n

      • \n

        N\u00edquel at\u00e9 35% (para trabalho a frio e endurecimento por deforma\u00e7\u00e3o)<\/p>\n<\/li>\n

      • \n

        Mangan\u00eas (\u22641\/7 Mn por norma)<\/p>\n<\/li>\n

      • \n

        Sil\u00edcio (0,75-3% para refor\u00e7o a altas temperaturas)<\/p>\n<\/li>\n

      • \n

        Elementos adicionais (por exemplo, enxofre, azoto, molibd\u00e9nio, sel\u00e9nio, cobre)<\/p>\n<\/li>\n<\/ul>\n

        Classes austen\u00edticas magn\u00e9ticas<\/strong>: 201, 202, 205.
        \nClasses n\u00e3o magn\u00e9ticas<\/strong>: 304 (norma industrial, \u22658% n\u00edquel).<\/p>\n

        Aplica\u00e7\u00f5es:<\/strong><\/p>\n

          \n
        • \n

          Electrodom\u00e9sticos<\/p>\n<\/li>\n

        • \n

          Parafusos e componentes de corte inferior<\/p>\n<\/li>\n

        • \n

          Tanques de mistura qu\u00edmica<\/p>\n<\/li>\n

        • \n

          Recipientes sob press\u00e3o<\/p>\n<\/li>\n<\/ul>\n

          Propriedades mec\u00e2nicas:<\/strong><\/p>\n

            \n
          • \n

            Excelente taxa de endurecimento por trabalho<\/p>\n<\/li>\n

          • \n

            Ductilidade e tenacidade superiores<\/p>\n<\/li>\n

          • \n

            Elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/p>\n<\/li>\n

          • \n

            Boa resist\u00eancia \u00e0 flu\u00eancia e \u00e0 fadiga<\/p>\n<\/li>\n

          • \n

            Resist\u00eancia de escala (at\u00e9 650\u00b0C)<\/p>\n<\/li>\n

          • \n

            Resist\u00eancia moderada ao calor (\u2264650\u00b0C)<\/p>\n<\/li>\n

          • \n

            Excelente soldabilidade<\/p>\n<\/li>\n<\/ul>\n

            \n

            A\u00e7o inoxid\u00e1vel ferr\u00edtico<\/strong><\/span><\/h3>\n

            O a\u00e7o inoxid\u00e1vel ferr\u00edtico tem uma\u00a0c\u00fabico centrado no corpo (BCC)<\/strong>\u00a0estrutura, com 10,5-30% de cr\u00f3mio e \u22640,2% de carbono. Os elementos de liga comuns incluem o molibd\u00e9nio, o sil\u00edcio, o alum\u00ednio, o tit\u00e2nio e o ni\u00f3bio.<\/p>\n

            Grau de base<\/strong>: 430.
            \nNotas melhoradas<\/strong>: 434 (padr\u00e3o), 409 (estabilizado com tit\u00e2nio), 439, 444 (super ferr\u00edtico).<\/p>\n

              \n
            • \u00a0Equipamento de processamento de alimentos<\/span><\/li>\n
            • Condutas de solu\u00e7\u00e3o de cloreto<\/li>\n
            • Permutadores de calor (\u2264250\u00b0C)<\/li>\n
            • \n

              Interiores de autom\u00f3veis<\/p>\n<\/li>\n<\/ul>\n

              Propriedades mec\u00e2nicas:<\/strong><\/p>\n

                \n
              • \n

                Baixa taxa de endurecimento por trabalho<\/p>\n<\/li>\n

              • \n

                Ductilidade e tenacidade moderadas<\/p>\n<\/li>\n

              • \n

                Elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/p>\n<\/li>\n

              • \n

                Boa resist\u00eancia \u00e0 flu\u00eancia\/fadiga a baixas temperaturas<\/p>\n<\/li>\n

              • \n

                Resist\u00eancia moderada \u00e0 corros\u00e3o<\/p>\n<\/li>\n

              • \n

                Boa resist\u00eancia ao calor<\/p>\n<\/li>\n

              • \n

                M\u00e1 soldabilidade<\/p>\n<\/li>\n

              • \n

                Magn\u00e9tico<\/p>\n<\/li>\n<\/ul>\n

                \n

                A\u00e7o inoxid\u00e1vel duplex<\/strong><\/span><\/h3>\n

                Combina\u00e7\u00f5es de a\u00e7o inoxid\u00e1vel duplex\u00a0ferr\u00edtico (BCC)<\/strong>\u00a0e\u00a0austen\u00edtico (FCC)<\/strong>\u00a0estruturas. Oferece uma resist\u00eancia \u00e0 corros\u00e3o compar\u00e1vel a\u00a0A\u00e7o austen\u00edtico de grau 316<\/strong>\u00a0mas com maior resist\u00eancia \u00e0 tra\u00e7\u00e3o e melhor resist\u00eancia \u00e0 fissura\u00e7\u00e3o por corros\u00e3o sob tens\u00e3o.<\/p>\n

                Composi\u00e7\u00e3o:<\/strong><\/p>\n

                  \n
                • \n

                  22-26% cr\u00f3mio<\/p>\n<\/li>\n

                • \n

                  4-7% n\u00edquel<\/p>\n<\/li>\n

                • \n

                  \u22640,6% cobre<\/p>\n<\/li>\n

                • \n

                  0,15-0,25% azoto<\/p>\n<\/li>\n<\/ul>\n

                  Categorias:<\/strong><\/p>\n

                    \n
                  • \n

                    Duplex magro (2304)<\/p>\n<\/li>\n

                  • \n

                    Duplex standard (2205)<\/p>\n<\/li>\n

                  • \n

                    Super duplex (2507)<\/p>\n<\/li>\n

                  • \n

                    Hiper duplex (Zeron 100)<\/p>\n<\/li>\n<\/ul>\n

                    Aplica\u00e7\u00f5es:<\/strong><\/p>\n

                      \n
                    • \n

                      Petr\u00f3leo e g\u00e1s<\/p>\n<\/li>\n

                    • \n

                      Tratamento de \u00e1guas com cloretos<\/p>\n<\/li>\n

                    • \n

                      Dessaliniza\u00e7\u00e3o da \u00e1gua do mar<\/p>\n<\/li>\n<\/ul>\n

                      Propriedades mec\u00e2nicas:<\/strong><\/p>\n

                        \n
                      • \n

                        Elevada taxa de endurecimento por trabalho<\/p>\n<\/li>\n

                      • \n

                        N\u00e3o trat\u00e1vel termicamente<\/p>\n<\/li>\n

                      • \n

                        Boa ductilidade\/resist\u00eancia<\/p>\n<\/li>\n

                      • \n

                        Excelente resist\u00eancia \u00e0 corros\u00e3o<\/p>\n<\/li>\n

                      • \n

                        Soldabilidade moderada<\/p>\n<\/li>\n<\/ul>\n

                        \n

                        Outras classifica\u00e7\u00f5es dignas de nota<\/strong><\/span><\/h3>\n

                        A\u00e7o inoxid\u00e1vel 201<\/strong><\/h4>\n
                          \n
                        • \n

                          Composi\u00e7\u00e3o<\/strong>: Liga Cr-Mn-N (16-18% Cr, 3,5-5,5% Ni).<\/p>\n<\/li>\n

                        • \n

                          Aplica\u00e7\u00f5es<\/strong>: Manuseamento de alimentos, componentes arquitect\u00f3nicos.<\/p>\n<\/li>\n

                        • \n

                          Propriedades<\/strong>: N\u00e3o magn\u00e9tico (recozido), endurec\u00edvel por trabalho a frio.<\/p>\n<\/li>\n<\/ul>\n

                          2507 (Super Duplex)<\/strong><\/h4>\n
                            \n
                          • \n

                            Composi\u00e7\u00e3o<\/strong>: 25% Cr, 7% Ni, 4% Mo.<\/p>\n<\/li>\n

                          • \n

                            Aplica\u00e7\u00f5es<\/strong>: Instala\u00e7\u00f5es de dessaliniza\u00e7\u00e3o, transforma\u00e7\u00e3o qu\u00edmica.<\/p>\n<\/li>\n<\/ul>\n

                            304\/304L\/304H<\/strong><\/h4>\n
                              \n
                            • \n

                              304<\/strong>: Objetivo geral (18% Cr, 8% Ni).<\/p>\n<\/li>\n

                            • \n

                              304L<\/strong>: Variante com baixo teor de carbono para soldadura.<\/p>\n<\/li>\n

                            • \n

                              304H<\/strong>: Estabilidade a altas temperaturas.<\/p>\n<\/li>\n<\/ul>\n

                              316\/316L<\/strong><\/h4>\n
                                \n
                              • \n

                                Refor\u00e7ado com molibd\u00e9nio<\/strong>\u00a0para resist\u00eancia \u00e0 corros\u00e3o.<\/p>\n<\/li>\n

                              • \n

                                Aplica\u00e7\u00f5es<\/strong>: Marinha, processamento qu\u00edmico.<\/p>\n<\/li>\n<\/ul>\n

                                430 (ferr\u00edtico)<\/strong><\/h4>\n
                                  \n
                                • \n

                                  Rent\u00e1vel<\/strong>, resist\u00eancia moderada \u00e0 corros\u00e3o.<\/p>\n<\/li>\n

                                • \n

                                  Aplica\u00e7\u00f5es<\/strong>: Escapes de autom\u00f3veis, permutadores de calor.<\/p>\n<\/li>\n<\/ul>\n

                                  \n

                                  Resumo<\/strong><\/h3>\n

                                  Este artigo descreve em pormenor os tipos, as qualidades e as propriedades do a\u00e7o inoxid\u00e1vel. Para mais informa\u00e7\u00f5es, contactar\u00a0DAXUN<\/strong>\u00a0para servi\u00e7os de fabrico ou um or\u00e7amento gratuito.<\/p>\n

                                  Declara\u00e7\u00e3o de exonera\u00e7\u00e3o de responsabilidade<\/strong>: O conte\u00fado tem um car\u00e1cter meramente informativo. A DAXUN n\u00e3o garante a exatid\u00e3o. As especifica\u00e7\u00f5es dependem da conformidade do fornecedor. Consulte os nossos Termos e Condi\u00e7\u00f5es para obter mais informa\u00e7\u00f5es.<\/p>","protected":false},"excerpt":{"rendered":"

                                  Stainless steel is an iron-based alloy containing at least 10.5% chromium. Chromium forms a protective chromium oxide layer on the surface, preventing rust from penetrating the iron.Stainless steel can be classified into\u00a0duplex structure classes\u00a0and\u00a0single heat-treatment classes, which fall under the same general category for most types. The numbering system divides […]<\/p>\n","protected":false},"author":1,"featured_media":15194,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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":""},"categories":[1],"tags":[],"class_list":["post-15193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nDetailed introduction to types and types of stainless steel - Daxun<\/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:\/\/daxuns.com\/pt\/detailed-introduction-to-types-and-types-of-stainless-steel\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Detailed introduction to types and types of stainless steel - Daxun\" \/>\n<meta property=\"og:description\" content=\"Stainless steel is an iron-based alloy containing at least 10.5% chromium. Chromium forms a protective chromium oxide layer on the surface, preventing rust from penetrating the iron.Stainless steel can be classified into\u00a0duplex structure classes\u00a0and\u00a0single heat-treatment classes, which fall under the same general category for most types. The numbering system divides […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/daxuns.com\/pt\/detailed-introduction-to-types-and-types-of-stainless-steel\/\" \/>\n<meta property=\"og:site_name\" content=\"Daxun\" \/>\n<meta property=\"article:published_time\" content=\"2024-07-06T03:26:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-24T06:43:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/daxuns.com\/wp-content\/uploads\/2024\/07\/melting-700x350-1-jpg.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u5927\u62a5\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5927\u62a5\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Detailed introduction to types and types of stainless steel - Daxun","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/daxuns.com\/pt\/detailed-introduction-to-types-and-types-of-stainless-steel\/","og_locale":"pt_PT","og_type":"article","og_title":"Detailed introduction to types and types of stainless steel - Daxun","og_description":"Stainless steel is an iron-based alloy containing at least 10.5% chromium. Chromium forms a protective chromium oxide layer on the surface, preventing rust from penetrating the iron.Stainless steel can be classified into\u00a0duplex structure classes\u00a0and\u00a0single heat-treatment classes, which fall under the same general category for most types. The numbering system divides […]","og_url":"https:\/\/daxuns.com\/pt\/detailed-introduction-to-types-and-types-of-stainless-steel\/","og_site_name":"Daxun","article_published_time":"2024-07-06T03:26:56+00:00","article_modified_time":"2025-04-24T06:43:08+00:00","og_image":[{"width":700,"height":400,"url":"https:\/\/daxuns.com\/wp-content\/uploads\/2024\/07\/melting-700x350-1-jpg.webp","type":"image\/jpeg"}],"author":"\u5927\u62a5","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"\u5927\u62a5","Tempo estimado de leitura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/daxuns.com\/detailed-introduction-to-types-and-types-of-stainless-steel\/#article","isPartOf":{"@id":"https:\/\/daxuns.com\/detailed-introduction-to-types-and-types-of-stainless-steel\/"},"author":{"name":"\u5927\u62a5","@id":"https:\/\/daxuns.com\/#\/schema\/person\/de54877afc2565a9ca1fbbfc7f40eeab"},"headline":"Detailed introduction to types and types of stainless steel","datePublished":"2024-07-06T03:26:56+00:00","dateModified":"2025-04-24T06:43:08+00:00","mainEntityOfPage":{"@id":"https:\/\/daxuns.com\/detailed-introduction-to-types-and-types-of-stainless-steel\/"},"wordCount":550,"publisher":{"@id":"https:\/\/daxuns.com\/#organization"},"image":{"@id":"https:\/\/daxuns.com\/detailed-introduction-to-types-and-types-of-stainless-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/daxuns.com\/wp-content\/uploads\/2024\/07\/melting-700x350-1-jpg.webp","articleSection":["Blog"],"inLanguage":"pt-PT"},{"@type":"WebPage","@id":"https:\/\/daxuns.com\/detailed-introduction-to-types-and-types-of-stainless-steel\/","url":"https:\/\/daxuns.com\/detailed-introduction-to-types-and-types-of-stainless-steel\/","name":"Detailed introduction to types and types of stainless steel - 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