{"id":9241,"date":"2025-04-15T10:23:10","date_gmt":"2025-04-15T07:23:10","guid":{"rendered":"https:\/\/hursan.com\/en\/?p=9241"},"modified":"2025-05-05T10:27:14","modified_gmt":"2025-05-05T07:27:14","slug":"what-is-duplex-2205-uns-s31803-and-where-is-it-used","status":"publish","type":"post","link":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/","title":{"rendered":"What is Duplex 2205 (UNS S31803) and Where is it Used?"},"content":{"rendered":"<section class=\"l-section wpb_row height_custom\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_grid cols_1 laptops-cols_inherit tablets-cols_inherit mobiles-cols_1 valign_top type_default stacking_default\"><div class=\"wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><b>Duplex 2205 (UNS S31803)<\/b><span style=\"font-weight: 400;\"> is a type of stainless steel that stands out with its excellent mechanical strength and corrosion resistance. Often preferred by those seeking a material that offers both high strength and corrosion resistance in industrial applications, duplex stainless steel is commonly used in chemical processes, marine industries, petrochemical sectors, and energy systems.<\/span><\/p>\n<h2><b>What is Duplex 2205 (UNS S31803) Stainless Steel, and what is it Used For?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Duplex 2205 (UNS S31803) stainless steel is a special duplex alloy formed by the combination of ferritic and austenitic steel phases. Thanks to this dual-phase structure, it provides high mechanical strength as well as superior corrosion resistance. Compared to conventional stainless steels, it stands out with more balanced and enhanced properties.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The main chemical composition of duplex stainless steel includes:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">18\u201322% Chromium (Cr),<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">4\u20137% Nickel (Ni),<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">1\u20133% Molybdenum (Mo),<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Small amounts of Nitrogen and Manganese.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This composition provides the steel with high strength and exceptional resistance to harsh environmental conditions.<\/span><\/p>\n<h3><b>Where is Duplex 2205 (UNS S31803) Used? Areas of Application<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Duplex stainless steel is known for its wide range of industrial applications. Some common areas include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chemical and petrochemical plants:<\/b><span style=\"font-weight: 400;\"> Provide high resistance against acids, bases, and aggressive chemicals.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Heat exchangers and pressure vessels:<\/b><span style=\"font-weight: 400;\"> Maintains shape and strength under high temperature and pressure.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Marine and shipbuilding industry:<\/b><span style=\"font-weight: 400;\"> Offers long-lasting performance due to its excellent resistance to saltwater.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Food and beverage industry:<\/b><span style=\"font-weight: 400;\"> Safe to use in hygiene-sensitive environments.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Construction and infrastructure:<\/b><span style=\"font-weight: 400;\"> Used in industrial structures, tanks, piping systems, building facades, railings, and bridge components as a long-lasting solution.<\/span><\/li>\n<\/ul>\n<h3><b>What are the Advantages of Duplex 2205 (UNS S31803) Stainless Steel?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Duplex steel is preferred, especially for the following superior features:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>High Mechanical Strength:<\/b><span style=\"font-weight: 400;\"> Offers twice the mechanical strength of carbon steel, allowing thinner materials to be used, reducing weight and cost.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Superior Corrosion Resistance:<\/b><span style=\"font-weight: 400;\"> Thanks to its high chromium, molybdenum, and nitrogen content, Duplex 2205 stainless steel provides outstanding corrosion resistance in seawater, chemical facilities, and acidic environments. It is an ideal choice for aggressive environments.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Resistance to Stress Corrosion Cracking:<\/b><span style=\"font-weight: 400;\"> Performs exceptionally well under dynamic loads and mechanical stress. This makes it ideal for machinery and structural components operating under constant stress, particularly in pressurized systems.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Cost-Effective:<\/b><span style=\"font-weight: 400;\"> Contains less nickel and molybdenum compared to austenitic stainless steels, offering a cost advantage. It is a durable and more affordable alternative to specially alloyed stainless steels.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Good Weldability:<\/b><span style=\"font-weight: 400;\"> With its low carbon content and optimized alloy composition, it offers excellent weldability, saving time and cost during assembly and production. When proper techniques are applied, welding can be performed successfully.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Thanks to these advantageous properties, duplex stainless steel can safely operate for long periods even under harsh conditions.<\/span><\/p>\n<h3><b>Why Should You Choose Duplex Stainless Steel?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Duplex steel provides excellent performance in even the most challenging conditions due to its mechanical strength and chemical resistance. Especially its ability to reduce maintenance costs and extend service life makes it an attractive investment.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">High strength enables the use of thinner cross-sections, which results in weight savings and cost efficiency. Its resistance to high temperature and pressure combinations makes it indispensable in tough sectors such as energy.<\/span><\/p>\n<h3><b>For Your Duplex Steel Needs: Hursan Stainless<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Standing out with its reliability and expertise, <\/span><b>Hursan Stainless<\/b><span style=\"font-weight: 400;\"> is a solution partner for industrial projects with its high-quality duplex stainless steel products. With a wide product stock, fast delivery capabilities, and an experienced technical team, Hursan provides customized solutions to meet your specific needs.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hursan Stainless not only supplies products but also offers technical support to help you choose the right material. If you&#8217;re looking for certified, durable, and high-performance duplex steel, Hursan is your trusted partner.<\/span><\/p>\n<p><b>For more information:<\/b> <a href=\"https:\/\/hursanstainless.com\/en\/\" target=\"_blank\" rel=\"noopener\"><b>https:\/\/hursanstainless.com\/en\/<\/b><\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"Duplex 2205 (UNS S31803) is a type of stainless steel that stands out with its excellent mechanical strength and corrosion resistance. Often preferred by those seeking a material that offers both high strength and corrosion resistance in industrial applications, duplex stainless steel is commonly used in chemical processes, marine industries, petrochemical sectors, and energy systems....","protected":false},"author":1,"featured_media":9242,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-9241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Duplex 2205 (UNS S31803) and Where is it Used? | HURSAN<\/title>\n<meta name=\"description\" content=\"What is Duplex 2205 (UNS S31803) and Where is it Used? What are its Advantages? For Your Duplex Steel Needs: Hursan Stainless.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Duplex 2205 (UNS S31803) and Where is it Used? | HURSAN\" \/>\n<meta property=\"og:description\" content=\"What is Duplex 2205 (UNS S31803) and Where is it Used? What are its Advantages? For Your Duplex Steel Needs: Hursan Stainless.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/\" \/>\n<meta property=\"og:site_name\" content=\"HURSAN\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-15T07:23:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-05T07:27:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"990\" \/>\n\t<meta property=\"og:image:height\" content=\"743\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Tmsh-Admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tmsh-Admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/\",\"url\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/\",\"name\":\"What is Duplex 2205 (UNS S31803) and Where is it Used? | HURSAN\",\"isPartOf\":{\"@id\":\"https:\/\/hursan.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp\",\"datePublished\":\"2025-04-15T07:23:10+00:00\",\"dateModified\":\"2025-05-05T07:27:14+00:00\",\"author\":{\"@id\":\"https:\/\/hursan.com\/en\/#\/schema\/person\/3fc611a261040c0d814dc7d8cc86df2e\"},\"description\":\"What is Duplex 2205 (UNS S31803) and Where is it Used? What are its Advantages? For Your Duplex Steel Needs: Hursan Stainless.\",\"breadcrumb\":{\"@id\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#primaryimage\",\"url\":\"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp\",\"contentUrl\":\"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp\",\"width\":990,\"height\":743,\"caption\":\"What is Duplex 2205 (UNS S31803) and Where is it Used\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\/\/hursan.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is Duplex 2205 (UNS S31803) and Where is it Used?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/hursan.com\/en\/#website\",\"url\":\"https:\/\/hursan.com\/en\/\",\"name\":\"HURSAN\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/hursan.com\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/hursan.com\/en\/#\/schema\/person\/3fc611a261040c0d814dc7d8cc86df2e\",\"name\":\"Tmsh-Admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/hursan.com\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8d0f62de0452c09512765a9963702ecf978927e599d857da9e228966fcaaaa8a?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8d0f62de0452c09512765a9963702ecf978927e599d857da9e228966fcaaaa8a?s=96&d=mm&r=g\",\"caption\":\"Tmsh-Admin\"},\"sameAs\":[\"http:\/\/hursan.com\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What is Duplex 2205 (UNS S31803) and Where is it Used? | HURSAN","description":"What is Duplex 2205 (UNS S31803) and Where is it Used? What are its Advantages? For Your Duplex Steel Needs: Hursan Stainless.","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:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/","og_locale":"en_US","og_type":"article","og_title":"What is Duplex 2205 (UNS S31803) and Where is it Used? | HURSAN","og_description":"What is Duplex 2205 (UNS S31803) and Where is it Used? What are its Advantages? For Your Duplex Steel Needs: Hursan Stainless.","og_url":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/","og_site_name":"HURSAN","article_published_time":"2025-04-15T07:23:10+00:00","article_modified_time":"2025-05-05T07:27:14+00:00","og_image":[{"width":990,"height":743,"url":"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp","type":"image\/webp"}],"author":"Tmsh-Admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Tmsh-Admin","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/","url":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/","name":"What is Duplex 2205 (UNS S31803) and Where is it Used? | HURSAN","isPartOf":{"@id":"https:\/\/hursan.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#primaryimage"},"image":{"@id":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#primaryimage"},"thumbnailUrl":"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp","datePublished":"2025-04-15T07:23:10+00:00","dateModified":"2025-05-05T07:27:14+00:00","author":{"@id":"https:\/\/hursan.com\/en\/#\/schema\/person\/3fc611a261040c0d814dc7d8cc86df2e"},"description":"What is Duplex 2205 (UNS S31803) and Where is it Used? What are its Advantages? For Your Duplex Steel Needs: Hursan Stainless.","breadcrumb":{"@id":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#primaryimage","url":"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp","contentUrl":"https:\/\/hursan.com\/en\/wp-content\/uploads\/2025\/05\/what-is-duplex-2205-uns-s31803-and-where-is-it-used.webp","width":990,"height":743,"caption":"What is Duplex 2205 (UNS S31803) and Where is it Used"},{"@type":"BreadcrumbList","@id":"https:\/\/hursan.com\/en\/what-is-duplex-2205-uns-s31803-and-where-is-it-used\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Anasayfa","item":"https:\/\/hursan.com\/en\/"},{"@type":"ListItem","position":2,"name":"What is Duplex 2205 (UNS S31803) and Where is it Used?"}]},{"@type":"WebSite","@id":"https:\/\/hursan.com\/en\/#website","url":"https:\/\/hursan.com\/en\/","name":"HURSAN","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/hursan.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/hursan.com\/en\/#\/schema\/person\/3fc611a261040c0d814dc7d8cc86df2e","name":"Tmsh-Admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/hursan.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/8d0f62de0452c09512765a9963702ecf978927e599d857da9e228966fcaaaa8a?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8d0f62de0452c09512765a9963702ecf978927e599d857da9e228966fcaaaa8a?s=96&d=mm&r=g","caption":"Tmsh-Admin"},"sameAs":["http:\/\/hursan.com"]}]}},"_links":{"self":[{"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/posts\/9241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/comments?post=9241"}],"version-history":[{"count":1,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/posts\/9241\/revisions"}],"predecessor-version":[{"id":9243,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/posts\/9241\/revisions\/9243"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/media\/9242"}],"wp:attachment":[{"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/media?parent=9241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/categories?post=9241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hursan.com\/en\/wp-json\/wp\/v2\/tags?post=9241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}