{"id":5541,"date":"2026-08-01T00:05:36","date_gmt":"2026-07-31T16:05:36","guid":{"rendered":"https:\/\/yunming-metal.com\/?p=5541"},"modified":"2026-08-01T00:09:21","modified_gmt":"2026-07-31T16:09:21","slug":"2205-duplex-stainless-steel-applications","status":"publish","type":"post","link":"https:\/\/yunming-metal.com\/en\/2205-duplex-stainless-steel-applications\/","title":{"rendered":"2205 Duplex Stainless Steel Applications"},"content":{"rendered":"<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"rzkdgm\" data-start=\"229\" data-end=\"240\">Overview<\/h2>\n<p data-start=\"242\" data-end=\"752\">2205 duplex stainless steel (UNS S32205\/S31803) is a high-performance duplex stainless steel that combines the advantages of austenitic and ferritic stainless steels. It offers excellent corrosion resistance, high mechanical strength, outstanding resistance to chloride stress corrosion cracking (SCC), and good weldability. These properties make 2205 an ideal material for demanding industries such as offshore engineering, oil &amp; gas, chemical processing, desalination, marine equipment, and pressure vessels.<\/p>\n<p data-start=\"754\" data-end=\"1052\">At Yunming Metal, we supply a complete range of <strong data-start=\"802\" data-end=\"842\">2205 duplex stainless steel products<\/strong>, including seamless tubes, welded tubes, pipes, plates, bars, flanges, and fittings. All products are manufactured in accordance with international standards and can be customized to meet project requirements.<\/p>\n<hr data-start=\"1054\" data-end=\"1057\" \/>\n<h1 data-section-id=\"196j1zo\" data-start=\"1059\" data-end=\"1100\">Why Choose 2205 Duplex Stainless Steel?<\/h1>\n<p data-start=\"1102\" data-end=\"1240\">Compared with conventional stainless steels such as 304 and 316L, 2205 duplex stainless steel provides significant performance advantages.<\/p>\n<h3 data-section-id=\"1lgsni1\" data-start=\"1242\" data-end=\"1276\">Excellent Corrosion Resistance<\/h3>\n<p data-start=\"1278\" data-end=\"1420\">2205 offers superior resistance to pitting, crevice corrosion, and chloride-induced corrosion, making it suitable for aggressive environments.<\/p>\n<h3 data-section-id=\"1wy3za\" data-start=\"1422\" data-end=\"1450\">High Mechanical Strength<\/h3>\n<p data-start=\"1452\" data-end=\"1589\">Its yield strength is approximately twice that of 304 and 316L stainless steel, allowing thinner wall designs and reduced overall weight.<\/p>\n<h3 data-section-id=\"ix0u5i\" data-start=\"1591\" data-end=\"1630\">Outstanding Chloride SCC Resistance<\/h3>\n<p data-start=\"1632\" data-end=\"1751\">2205 performs exceptionally well in chloride-rich environments where conventional austenitic stainless steels may fail.<\/p>\n<h3 data-section-id=\"2pi7st\" data-start=\"1753\" data-end=\"1773\">Good Weldability<\/h3>\n<p data-start=\"1775\" data-end=\"1864\">Suitable for various welding processes while maintaining excellent mechanical properties.<\/p>\n<h3 data-section-id=\"116dbp0\" data-start=\"1866\" data-end=\"1893\">Cost-Effective Solution<\/h3>\n<p data-start=\"1895\" data-end=\"2007\">Its higher strength often allows reduced material thickness, helping lower fabrication and transportation costs.<\/p>\n<hr data-start=\"2009\" data-end=\"2012\" \/>\n<h1 data-section-id=\"gassve\" data-start=\"2014\" data-end=\"2067\">Typical Applications of 2205 Duplex Stainless Steel<\/h1>\n<h2 data-section-id=\"16zke1y\" data-start=\"2069\" data-end=\"2090\"><a href=\"https:\/\/yunming-metal.com\/stainless-steel-tubes-for-oil-gas-industry\/\">Oil &amp; Gas Industry<\/a><\/h2>\n<p data-start=\"2092\" data-end=\"2116\">2205 is widely used for:<\/p>\n<ul data-start=\"2118\" data-end=\"2209\">\n<li data-section-id=\"1ft5hka\" data-start=\"2118\" data-end=\"2134\">Process piping<\/li>\n<li data-section-id=\"1y6pb9o\" data-start=\"2135\" data-end=\"2157\">Heat exchanger tubes<\/li>\n<li data-section-id=\"ar5414\" data-start=\"2158\" data-end=\"2178\">Offshore platforms<\/li>\n<li data-section-id=\"1l07txj\" data-start=\"2179\" data-end=\"2190\">Flowlines<\/li>\n<li data-section-id=\"8nwp7f\" data-start=\"2191\" data-end=\"2209\">Pressure systems<\/li>\n<\/ul>\n<hr data-start=\"2211\" data-end=\"2214\" \/>\n<h2 data-section-id=\"lk0tai\" data-start=\"2216\" data-end=\"2248\">Offshore &amp; Marine Engineering<\/h2>\n<p data-start=\"2250\" data-end=\"2313\">Its excellent seawater corrosion resistance makes it ideal for:<\/p>\n<ul data-start=\"2315\" data-end=\"2418\">\n<li data-section-id=\"1ehtqxv\" data-start=\"2315\" data-end=\"2332\">Seawater piping<\/li>\n<li data-section-id=\"fvg936\" data-start=\"2333\" data-end=\"2354\">Offshore structures<\/li>\n<li data-section-id=\"16gu6ws\" data-start=\"2355\" data-end=\"2369\">Shipbuilding<\/li>\n<li data-section-id=\"1dtd2qe\" data-start=\"2370\" data-end=\"2394\">Marine heat exchangers<\/li>\n<li data-section-id=\"8vf7gk\" data-start=\"2395\" data-end=\"2418\">Cooling water systems<\/li>\n<\/ul>\n<hr data-start=\"2420\" data-end=\"2423\" \/>\n<h2 data-section-id=\"d6w8cq\" data-start=\"2425\" data-end=\"2447\">Chemical Processing<\/h2>\n<p data-start=\"2449\" data-end=\"2515\">2205 performs well in aggressive chemical environments, including:<\/p>\n<ul data-start=\"2517\" data-end=\"2617\">\n<li data-section-id=\"1wehxdv\" data-start=\"2517\" data-end=\"2536\">Chemical reactors<\/li>\n<li data-section-id=\"as2qhe\" data-start=\"2537\" data-end=\"2552\">Storage tanks<\/li>\n<li data-section-id=\"xpwng2\" data-start=\"2553\" data-end=\"2572\">Process pipelines<\/li>\n<li data-section-id=\"1n0h37o\" data-start=\"2573\" data-end=\"2591\">Pressure vessels<\/li>\n<li data-section-id=\"1bdthgi\" data-start=\"2592\" data-end=\"2617\">Acid handling equipment<\/li>\n<\/ul>\n<hr data-start=\"2619\" data-end=\"2622\" \/>\n<h2 data-section-id=\"hsh46v\" data-start=\"2624\" data-end=\"2657\">Water Treatment &amp; Desalination<\/h2>\n<p data-start=\"2659\" data-end=\"2672\">Suitable for:<\/p>\n<ul data-start=\"2674\" data-end=\"2777\">\n<li data-section-id=\"1yb07s9\" data-start=\"2674\" data-end=\"2699\">Reverse osmosis systems<\/li>\n<li data-section-id=\"vi9aex\" data-start=\"2700\" data-end=\"2721\">Desalination plants<\/li>\n<li data-section-id=\"mm8n8s\" data-start=\"2722\" data-end=\"2739\">Water pipelines<\/li>\n<li data-section-id=\"acygyu\" data-start=\"2740\" data-end=\"2754\">Pump systems<\/li>\n<li data-section-id=\"1ij6hwa\" data-start=\"2755\" data-end=\"2777\">Filtration equipment<\/li>\n<\/ul>\n<hr data-start=\"2779\" data-end=\"2782\" \/>\n<h2 data-section-id=\"2piu0m\" data-start=\"2784\" data-end=\"2808\">Pulp &amp; Paper Industry<\/h2>\n<p data-start=\"2810\" data-end=\"2827\">Commonly used in:<\/p>\n<ul data-start=\"2829\" data-end=\"2904\">\n<li data-section-id=\"aad0kj\" data-start=\"2829\" data-end=\"2850\">Bleaching equipment<\/li>\n<li data-section-id=\"1nhu6hw\" data-start=\"2851\" data-end=\"2862\">Digesters<\/li>\n<li data-section-id=\"mtmupi\" data-start=\"2863\" data-end=\"2887\">Chemical storage tanks<\/li>\n<li data-section-id=\"1ft5hka\" data-start=\"2888\" data-end=\"2904\">Process piping<\/li>\n<\/ul>\n<hr data-start=\"2906\" data-end=\"2909\" \/>\n<h2 data-section-id=\"1djbxek\" data-start=\"2911\" data-end=\"2930\">Power Generation<\/h2>\n<p data-start=\"2932\" data-end=\"2943\">Applied in:<\/p>\n<ul data-start=\"2945\" data-end=\"3029\">\n<li data-section-id=\"1nhxdfz\" data-start=\"2945\" data-end=\"2969\">Heat exchanger systems<\/li>\n<li data-section-id=\"dof3si\" data-start=\"2970\" data-end=\"2982\">Condensers<\/li>\n<li data-section-id=\"ikfsnl\" data-start=\"2983\" data-end=\"3000\">Cooling systems<\/li>\n<li data-section-id=\"y8dtsn\" data-start=\"3001\" data-end=\"3029\">Boiler auxiliary equipment<\/li>\n<\/ul>\n<hr data-start=\"3031\" data-end=\"3034\" \/>\n<h1 data-section-id=\"1m0qark\" data-start=\"3036\" data-end=\"3078\">Our 2205 Duplex Stainless Steel Products<\/h1>\n<p data-start=\"3080\" data-end=\"3103\">Yunming Metal supplies:<\/p>\n<ul data-start=\"3105\" data-end=\"3289\">\n<li data-section-id=\"1yf2cce\" data-start=\"3105\" data-end=\"3128\">Duplex Seamless Tubes<\/li>\n<li data-section-id=\"1mutbrq\" data-start=\"3129\" data-end=\"3150\">Duplex Welded Tubes<\/li>\n<li data-section-id=\"1uvrj10\" data-start=\"3151\" data-end=\"3174\"><a href=\"https:\/\/yunming-metal.com\/en\/product-category\/stainless-steel-pipe-tube\/\">Stainless Steel Pipes<\/a><\/li>\n<li data-section-id=\"5ncxou\" data-start=\"3175\" data-end=\"3208\"><a href=\"https:\/\/yunming-metal.com\/en\/product-category\/stainless-steel-sheet-plate-coil\/\">Stainless Steel Plates &amp; Sheets<\/a><\/li>\n<li data-section-id=\"1jtvf61\" data-start=\"3209\" data-end=\"3231\"><a href=\"https:\/\/yunming-metal.com\/en\/product-category\/stainless-steel-bar-profile\/\">Stainless Steel Bars<\/a><\/li>\n<li data-section-id=\"mc8a2n\" data-start=\"3232\" data-end=\"3257\"><a href=\"https:\/\/yunming-metal.com\/en\/product-category\/stainless-steel-flange\/\">Stainless Steel Flanges<\/a><\/li>\n<li data-section-id=\"2lyaez\" data-start=\"3258\" data-end=\"3289\"><a href=\"https:\/\/yunming-metal.com\/en\/product-category\/stainless-steel-pipe-fittings\/\">Stainless Steel Pipe Fittings<\/a><\/li>\n<\/ul>\n<p data-start=\"3291\" data-end=\"3404\">Customized dimensions, wall thicknesses, and surface finishes are available according to customer specifications.<\/p>\n<hr data-start=\"3406\" data-end=\"3409\" \/>\n<h1 data-section-id=\"zjxypn\" data-start=\"3411\" data-end=\"3437\">Technical Specifications<\/h1>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3439\" data-end=\"3728\">\n<thead data-start=\"3439\" data-end=\"3463\">\n<tr data-start=\"3439\" data-end=\"3463\">\n<th class=\"last:pe-10\" data-start=\"3439\" data-end=\"3446\" data-col-size=\"sm\">Item<\/th>\n<th class=\"last:pe-10\" data-start=\"3446\" data-end=\"3463\" data-col-size=\"sm\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3489\" data-end=\"3728\">\n<tr data-start=\"3489\" data-end=\"3521\">\n<td data-start=\"3489\" data-end=\"3506\" data-col-size=\"sm\">Material Grade<\/td>\n<td data-start=\"3506\" data-end=\"3521\" data-col-size=\"sm\">Duplex 2205<\/td>\n<\/tr>\n<tr data-start=\"3522\" data-end=\"3547\">\n<td data-start=\"3522\" data-end=\"3528\" data-col-size=\"sm\">UNS<\/td>\n<td data-start=\"3528\" data-end=\"3547\" data-col-size=\"sm\">S32205 \/ S31803<\/td>\n<\/tr>\n<tr data-start=\"3548\" data-end=\"3563\">\n<td data-start=\"3548\" data-end=\"3553\" data-col-size=\"sm\">EN<\/td>\n<td data-start=\"3553\" data-end=\"3563\" data-col-size=\"sm\">1.4462<\/td>\n<\/tr>\n<tr data-start=\"3564\" data-end=\"3601\">\n<td data-start=\"3564\" data-end=\"3576\" data-col-size=\"sm\">ASTM Pipe<\/td>\n<td data-col-size=\"sm\" data-start=\"3576\" data-end=\"3601\">ASTM A790 \/ ASTM A789<\/td>\n<\/tr>\n<tr data-start=\"3602\" data-end=\"3628\">\n<td data-start=\"3602\" data-end=\"3615\" data-col-size=\"sm\">ASTM Plate<\/td>\n<td data-start=\"3615\" data-end=\"3628\" data-col-size=\"sm\">ASTM A240<\/td>\n<\/tr>\n<tr data-start=\"3629\" data-end=\"3660\">\n<td data-start=\"3629\" data-end=\"3643\" data-col-size=\"sm\">ASTM Flange<\/td>\n<td data-start=\"3643\" data-end=\"3660\" data-col-size=\"sm\">ASTM A182 F51<\/td>\n<\/tr>\n<tr data-start=\"3661\" data-end=\"3695\">\n<td data-start=\"3661\" data-end=\"3672\" data-col-size=\"sm\">Standard<\/td>\n<td data-start=\"3672\" data-end=\"3695\" data-col-size=\"sm\">ASME, ASTM, EN, DIN<\/td>\n<\/tr>\n<tr data-start=\"3696\" data-end=\"3728\">\n<td data-start=\"3696\" data-end=\"3702\" data-col-size=\"sm\">MTC<\/td>\n<td data-start=\"3702\" data-end=\"3728\" data-col-size=\"sm\">EN 10204 3.1 Available<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"3730\" data-end=\"3733\" \/>\n<h1 data-section-id=\"oh4fz0\" data-start=\"3735\" data-end=\"3762\">Why Choose Yunming Metal?<\/h1>\n<p data-start=\"3764\" data-end=\"3862\">At Yunming Metal, we provide high-quality duplex stainless steel products for customers worldwide.<\/p>\n<p data-start=\"3864\" data-end=\"3873\">We offer:<\/p>\n<ul data-start=\"3875\" data-end=\"4067\">\n<li data-section-id=\"1pl8634\" data-start=\"3875\" data-end=\"3902\">Strict quality inspection<\/li>\n<li data-section-id=\"123cn9n\" data-start=\"3903\" data-end=\"3949\">EN 10204 3.1 Material Test Certificate (MTC)<\/li>\n<li data-section-id=\"zmyj49\" data-start=\"3950\" data-end=\"3976\">Customized manufacturing<\/li>\n<li data-section-id=\"1i6rd5z\" data-start=\"3977\" data-end=\"3998\">Competitive pricing<\/li>\n<li data-section-id=\"nnfpn8\" data-start=\"3999\" data-end=\"4014\">Fast delivery<\/li>\n<li data-section-id=\"sb2g1k\" data-start=\"4015\" data-end=\"4046\">Professional export packaging<\/li>\n<li data-section-id=\"1yefu7b\" data-start=\"4047\" data-end=\"4067\">Worldwide shipping<\/li>\n<\/ul>\n<p data-start=\"4069\" data-end=\"4205\">Our duplex stainless steel products are widely supplied to customers in the oil &amp; gas, marine, chemical, and water treatment industries.<\/p>\n<hr data-start=\"4207\" data-end=\"4210\" \/>\n<h1 data-section-id=\"hkd5a4\" data-start=\"4212\" data-end=\"4240\">Frequently Asked Questions<\/h1>\n<h2 data-section-id=\"vt471c\" data-start=\"4242\" data-end=\"4290\">What is 2205 duplex stainless steel used for?<\/h2>\n<p data-start=\"4292\" data-end=\"4453\">2205 is widely used in offshore engineering, oil &amp; gas, marine equipment, chemical processing, desalination plants, pressure vessels, and heat exchanger systems.<\/p>\n<hr data-start=\"4455\" data-end=\"4458\" \/>\n<h2 data-section-id=\"x53jni\" data-start=\"4460\" data-end=\"4488\">Is 2205 better than 316L?<\/h2>\n<p data-start=\"4490\" data-end=\"4680\">In chloride-containing environments, 2205 provides significantly better corrosion resistance and approximately twice the strength of 316L, making it suitable for more demanding applications.<\/p>\n<hr data-start=\"4682\" data-end=\"4685\" \/>\n<h2 data-section-id=\"xlllrj\" data-start=\"4687\" data-end=\"4709\">Can 2205 be welded?<\/h2>\n<p data-start=\"4711\" data-end=\"4866\">Yes. 2205 duplex stainless steel has good weldability and is suitable for TIG, MIG, and other common welding processes when proper procedures are followed.<\/p>\n<hr data-start=\"4868\" data-end=\"4871\" \/>\n<h2 data-section-id=\"1yv2vm9\" data-start=\"4873\" data-end=\"4944\">Can Yunming Metal supply customized duplex stainless steel products?<\/h2>\n<p data-start=\"4946\" data-end=\"5077\">Yes. We manufacture customized tubes, pipes, plates, bars, flanges, and fittings according to customer drawings and specifications.<\/p>\n<hr data-start=\"5079\" data-end=\"5082\" \/>\n<h1 data-section-id=\"fsb6xx\" data-start=\"5084\" data-end=\"5096\">Conclusion<\/h1>\n<p data-start=\"5098\" data-end=\"5484\">2205 duplex stainless steel combines high strength with exceptional corrosion resistance, making it one of the most reliable materials for harsh industrial environments. Whether your project involves offshore engineering, chemical processing, marine applications, or water treatment, Yunming Metal can provide high-quality duplex stainless steel solutions tailored to your requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview 2205 duplex stainless steel (UNS S32205\/S31803) is a high-performance duplex stainless steel that combines the advantages of austenitic and ferritic stainless steels. It offers excellent corrosion resistance, high mechanical strength, outstanding resistance to chloride stress corrosion cracking (SCC), and good weldability. These properties make 2205 an ideal material for demanding industries such as offshore [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5543,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","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":[80],"tags":[],"class_list":["post-5541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.9 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>2205 Duplex Stainless Steel Applications - Yunming Metal - Stainless Steel Manufacturer &amp; Supplier<\/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:\/\/yunming-metal.com\/en\/2205-duplex-stainless-steel-applications\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2205 Duplex Stainless Steel Applications\" \/>\n<meta property=\"og:description\" content=\"Overview 2205 duplex stainless steel (UNS S32205\/S31803) is a high-performance duplex stainless steel that combines the advantages of austenitic and ferritic stainless steels. 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