{"id":4097,"date":"2025-06-20T16:40:39","date_gmt":"2025-06-20T13:40:39","guid":{"rendered":"https:\/\/www.defencemetal.com\/?p=4097"},"modified":"2026-09-24T19:45:18","modified_gmt":"2026-09-24T16:45:18","slug":"aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel","status":"publish","type":"post","link":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/","title":{"rendered":"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel"},"content":{"rendered":"<p><!-- dm-urun-link --><\/p>\n<div style=\"border:1px solid #d7dfe4;border-left:3px solid #DD3333;background:#F7FAFB;padding:11px 15px;margin:0 0 20px;font-size:14px;line-height:1.55\"><strong style=\"color:#12303f\">We supply AISI 431.<\/strong> For dimensions, standard equivalents, stock and quotations, take a look at the <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/aisi-431\/\"><strong>AISI 431 product page<\/strong><\/a>.<\/div>\n<p><!-- \/dm-urun-link --><\/p>\n<h3><b>AISI 431<\/b><\/h3>\n<h3><b>AISI 431 Stainless Steel: The Industrial Strength of a High Strength Martensitic Stainless Alloy<\/b><\/h3>\n<p class=\"p3\"><span class=\"s2\"><b>AISI 431 stainless steel<\/b><\/span> is a nickel-alloyed, high strength representative of the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Martensitik_paslanmaz_%C3%A7elik#:~:text=Martensitik%20paslanmaz%20%C3%A7elik%2C%20martensit%20i%C3%A7,olup%20ferritik%20paslanmaz%20%C3%A7eliklere%20benzerler.\">martensitic<\/a> stainless group. This alloy shows superior performance to similar martensitic classes such as AISI 410 and AISI 420 in terms of both mechanical strength and corrosion resistance. While the nickel addition increases the impact strength of the steel, the chromium content provides an above-average corrosion resistance. For these reasons AISI 431 is preferred across a broad industrial spectrum, from aerospace to automotive and from petrochemical equipment to marine components.<\/p>\n<p class=\"p3\">This article addresses the chemical composition of AISI 431, its heat treatment behaviour, its mechanical properties and its classifications according to standards at a technical level; at the same time it speaks to the industrial reader in the context of the expressions encountered in purchasing processes and the areas of use.<\/p>\n<hr>\n<h3><b>AISI 431 Chemical Composition and Microstructural Properties<\/b><\/h3>\n<p class=\"p3\">AISI 431 is a <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/martensitic-steels\/\">martensitic stainless<\/a> steel in which chromium and nickel are present together. Its difference from other martensitic grades is its nickel content of approximately 1.25\u20132.0%. This nickel contributes to both toughening and corrosion resistance, giving the material a more balanced behaviour.<\/p>\n<p class=\"p3\">Approximate chemical composition:<\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>Carbon (C)<\/b><\/span>: 0.16% \u2013 0.25%<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Chromium (Cr)<\/b><\/span>: 15.0% \u2013 17.0%<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Nickel (Ni)<\/b><\/span>: 1.25% \u2013 2.50%<\/li>\n<li class=\"p1\"><b>Manganese (Mn)<\/b><span class=\"s1\">: Max. 1.0%<\/span><\/li>\n<li class=\"p1\"><b>Silicon (Si)<\/b><span class=\"s1\">: Max. 1.0%<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Phosphorus (P)<\/b><\/span>: Max. 0.04%<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Sulphur (S)<\/b><\/span>: Max. 0.03%<\/li>\n<\/ul>\n<p class=\"p3\">This composition allows the steel both to reach high hardness after quenching and to be more resistant to the risk of cracking after heat treatment. The nickel content is the most distinctive property setting AISI 431 apart from the other martensitic classes.<\/p>\n<hr>\n<h3><b>AISI 431 Heat Treatment and Mechanical Properties<\/b><\/h3>\n<p class=\"p3\">One of the most important advantages of AISI 431 is that it offers versatile mechanical properties that can be optimised by heat treatment. The quenching temperature is in the range of 980\u20131050 \u00b0C. A martensitic structure is obtained after rapid cooling in water or oil. Tempering is then applied between 150\u2013400 \u00b0C to establish the desired balance between toughness and hardness.<\/p>\n<p class=\"p4\"><b>Typical mechanical properties after heat treatment<\/b><span class=\"s3\">:<\/span><\/p>\n<ul>\n<li class=\"p1\"><b>Tensile Strength (UTS)<\/b><span class=\"s1\">: 850 \u2013 1200 MPa<\/span><\/li>\n<li class=\"p1\"><b>Yield Strength (0.2% offset)<\/b><span class=\"s1\">: 550 \u2013 950 MPa<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Hardness<\/b><\/span>: 28 \u2013 45 HRC (depending on the tempering degree)<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Elongation<\/b><\/span>: 10% \u2013 18%<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Resistance to impact<\/b><\/span>: High (especially in the annealed and tempered condition)<\/li>\n<\/ul>\n<p class=\"p3\">These values make AISI 431 a material preferred in parts requiring both high strength and acceptable ductility.<\/p>\n<hr>\n<h3><b>ASTM, AMS and Other International Standards<\/b><\/h3>\n<p class=\"p3\">AISI 431 has been defined by many international standards bodies and its use technically regulated. These norms are of great importance for technical alignment between producers and users.<\/p>\n<p class=\"p4\"><b>ASTM Standards<\/b><span class=\"s3\">:<\/span><\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM A276<\/b><\/span> \u2013 Stainless steel bars and section products<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM A479<\/b><\/span> \u2013 Bar products for pressure vessel applications<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM A314<\/b><\/span> \u2013 Industrial type stainless bars<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM A182<\/b><\/span> \u2013 Forged flanges and fittings<\/li>\n<\/ul>\n<p class=\"p4\"><b>AMS Standards<\/b><span class=\"s3\">:<\/span><\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>AMS 5628<\/b><\/span> \u2013 Annealed or hardened AISI 431 bar, forging and ring products<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>AMS 5625<\/b><\/span> \u2013 Special quality 431 stainless steel for aircraft components<\/li>\n<\/ul>\n<p class=\"p4\"><b>EN\/DIN Equivalent<\/b><span class=\"s3\">:<\/span><\/p>\n<ul>\n<li class=\"p1\"><b>DIN 1.4057 \/ X17CrNi16-2<\/b><\/li>\n<li class=\"p1\"><b><\/b><span class=\"s1\"><b>EN 10088-3<\/b><\/span> semi-finished products compliant with the standard<\/li>\n<\/ul>\n<p class=\"p3\">These standards play a determining role in terms of quality assurance, especially in the aerospace, marine and energy sectors. In supply contracts, expressions such as &#8220;AMS 5628 certified 431 bar&#8221; are used to document the source and the quality of the material.<\/p>\n<hr>\n<h3><b>Application Areas and Industrial Use<\/b><\/h3>\n<p class=\"p3\">AISI 431 is widely used in parts requiring both structural strength and corrosion resistance. Its application areas concentrate in environments where mechanical loading and environmental effects are present together.<\/p>\n<ul>\n<li class=\"p4\"><b>Marine and Offshore Industry: <\/b>Thanks to its high chromium content, AISI 431 is resistant to salt water corrosion at a medium level. This property provides an important advantage in applications such as sea water pump shafts, propeller shafts, spindles and connection parts.<\/li>\n<li class=\"p4\"><b>Aerospace: <\/b>Because of its high strength and hardness properties it is preferred in landing gear components, engine parts and fasteners. The term &#8220;431 stainless steel aerospace grade&#8221; is a typical expression of this area of use.<\/li>\n<li class=\"p4\"><b>Chemical and Petrochemical: <\/b>Although its resistance to acids and alkalis is limited, it is suitable for valve parts, shaft systems and gaskets in mildly corrosive environments. ASTM A479 431 material is widespread in this type of application.<\/li>\n<li class=\"p4\"><b>Automotive and Machinery Industry: <\/b>It is used in applications such as parts operating under high torque, gears, crankshafts and fasteners requiring high strength.<\/li>\n<li class=\"p4\"><b>Food Industry: <\/b>Thanks to its medium resistance to corrosion, AISI 431 finds a place in components such as meat processing machines, blade systems and conveyor shafts.<\/li>\n<\/ul>\n<hr>\n<h3><b>Advantages and Disadvantages of AISI 431<\/b><\/h3>\n<p class=\"p4\"><b>Advantages<\/b><span class=\"s3\">:<\/span><\/p>\n<ul>\n<li class=\"p1\">High mechanical strength<\/li>\n<li class=\"p1\">Medium level corrosion resistance (especially in the tempered condition)<\/li>\n<li class=\"p1\">Configurability by heat treatment<\/li>\n<li class=\"p1\">Good polishability (decorative and functional surfaces)<\/li>\n<li class=\"p1\">Standards compliance and widespread availability<\/li>\n<\/ul>\n<p class=\"p4\"><b>Disadvantages<\/b><span class=\"s3\">:<\/span><\/p>\n<ul>\n<li class=\"p1\">Lower general corrosion resistance compared with austenitic stainless steels<\/li>\n<li class=\"p1\">Its weldability is low because of the high carbon content<\/li>\n<li class=\"p1\">It carries a risk of cracking in chlorinated environments<\/li>\n<li class=\"p1\">Its low temperature strength is limited; it may become brittle in very cold environments<\/li>\n<\/ul>\n<hr>\n<h3><b>Conclusion: The Place of AISI 431 in Supply and Application Decisions<\/b><\/h3>\n<p class=\"p3\">AISI 431 is one of the stainless steel grades that provides an optimum balance between high strength, heat treatment capability and medium level corrosion resistance. This alloy can be preferred with confidence in engineering projects where both <span class=\"s2\"><b>structural strength<\/b><\/span> and <span class=\"s2\"><b>environmental resistance requirements<\/b><\/span> are met together.<\/p>\n<p class=\"p3\">From a purchasing point of view, technical terms such as &#8220;DIN 1.4057 stainless bar&#8221;, &#8220;431 round bar compliant with the AMS 5628 standard&#8221; and &#8220;431 stainless shaft steel&#8221; offer a clear and standard language when requesting material from a supplier. It is critical for correct material decisions that users take criteria such as service conditions, surface finishing needs and welded fabrication into account during product selection.<\/p>\n<h5>#AISI431<br \/>\n#UNS S43100<br \/>\n#DIN X17CrNi16-2<br \/>\n#1.4057<br \/>\n#ASTMA276<br \/>\n#ASTMA314<br \/>\n#ASTMA484<br \/>\n#ASTMA580<br \/>\n#AMS5628 Bars \/ wire \/ forgings<br \/>\n#AMS-S-18732<\/h5>\n<p><!-- dm-tablo --><\/p>\n<div class=\"dm-tablo\" style=\"border:1px solid #d7dfe4;background:#ffffff;margin:24px 0 18px;\">\n<div style=\"background:#DD3333;color:#ffffff;font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:10px 12px;line-height:1.35;\">Chemical Composition \u00b7 AISI 431 (1.4057)<\/div>\n<div style=\"padding:2px 12px 8px;\">\n<table id=\"tablepress-25\" class=\"tablepress tablepress-id-25\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Kimyasal \u00d6zellikler <strong><\/th><th class=\"column-2\">Min.<\/th><th class=\"column-3\">Max.<\/th><td class=\"column-4\"><\/td><th class=\"column-5\">Mekanik \u00d6zellikler<\/th><th class=\"column-6\">De\u011fer<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">C<\/td><td class=\"column-2\">-<\/td><td class=\"column-3\">0.20<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Tensile Strength (MPa)<\/td><td class=\"column-6\">862<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Mn<\/td><td class=\"column-2\">-<\/td><td class=\"column-3\">1.00<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Proof Stress (MPa)<\/td><td class=\"column-6\">-<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Si<\/td><td class=\"column-2\">-<\/td><td class=\"column-3\">1.00<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Elongation A50 mm<\/td><td class=\"column-6\">20<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">P<\/td><td class=\"column-2\">-<\/td><td class=\"column-3\">0.04<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Hardness Brinell<\/td><td class=\"column-6\">285 Max HB<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">S<\/td><td class=\"column-2\">-<\/td><td class=\"column-3\">0.03<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Density<\/td><td class=\"column-6\">7.80 g\/cm3<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Cr<\/td><td class=\"column-2\">15<\/td><td class=\"column-3\">17<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Melting Point<\/td><td class=\"column-6\">1698 \u00b0C<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Ni<\/td><td class=\"column-2\">1.25<\/td><td class=\"column-3\">2.50<\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Modulus of Elasticity<\/td><td class=\"column-6\">200 kN\/mm\u00b2<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\"><\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Electrical Resistivity<\/td><td class=\"column-6\">0.72 x 10-6 \u03a9.m<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\"><\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Thermal Conductivity<\/td><td class=\"column-6\">20.2 W\/m.K<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\"><\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td><td class=\"column-5\">Thermal Expansion<\/td><td class=\"column-6\">10.2-12.1 x 10-6\/K<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-25 from cache --><\/div>\n<\/div>\n<p><!-- \/dm-tablo --><\/p>\n<p><!-- dm-ic-baglanti --><\/p>\n<div class=\"dm-ic-baglanti\" style=\"margin:28px 0 0;border:1px solid #e0e0e0;border-left:4px solid #DD3333;background:#FAFAFA;padding:16px 18px;\">\n<p style=\"font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#DD3333;margin:0 0 6px;line-height:1.4;\">We supply this material<\/p>\n<p style=\"margin:0 0 12px;font-size:15px;line-height:1.65;color:#333;\">We supply AISI 431 (1.4057) \u2014 to the AMS 5628 standard, in the dimensions and forms required. For stock availability and pricing:<\/p>\n<p><a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/aisi-431\/\" style=\"display:inline-block;color:#ffffff;background:#24BEE5;text-decoration:none;font-weight:600;font-size:14px;padding:10px 17px;line-height:1.2;\">AISI 431 product page \u2192<\/a>\n<\/div>\n<p><!-- \/dm-ic-baglanti --><\/p>\n<p><!-- dm-benzer --><\/p>\n<div class=\"dm-benzer\" style=\"margin:22px 0 0;padding:14px 16px;border:1px solid #e0e0e0;background:#FBFCFD;\">\n<p style=\"font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#9aa3a8;margin:0 0 8px;line-height:1.4;\">Similar products<\/p>\n<p style=\"margin:0;font-size:15px;line-height:2;color:#333;\"><a href=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-440c-1-4125-uns-s44004-ams-5618-ams-5630-ams-5880-stainless-steel\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">AISI 440C<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/aisi-410\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">AISI 410<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/aisi-415\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">AISI 415<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/aisi-416\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">AISI 416<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/martensitic-steels\/\" style=\"color:#666;font-weight:600;text-decoration:none;\">Martensitic steels \u2192<\/a><\/p>\n<\/div>\n<p><!-- \/dm-benzer --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>AISI 431 (1.4057 \/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel. Chemical composition, quenching and tempering, mechanical properties, ASTM A276 \/ A479 \/ A182 and AMS 5628, AMS 5625 standards, marine, aerospace and machinery applications.<\/p>\n","protected":false},"author":1,"featured_media":2149,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-4097","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel - Defence Metal<\/title>\n<meta name=\"description\" content=\"AISI 431 (1.4057 \/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel.\" \/>\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.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel - Defence Metal\" \/>\n<meta property=\"og:description\" content=\"AISI 431 (1.4057 \/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/\" \/>\n<meta property=\"og:site_name\" content=\"Defence Metal\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-20T13:40:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-24T16:45:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2025\/06\/AISI431-1-scaled-e1767365279724.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1638\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Defence Metal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Defence Metal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/\"},\"author\":{\"name\":\"Defence Metal\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#\\\/schema\\\/person\\\/94280a98e3bea4aa8b76811f913b167a\"},\"headline\":\"AISI 431 (1.4057 \\\/ UNS S43100) \u2014 AMS 5628 Stainless Steel\",\"datePublished\":\"2025-06-20T13:40:39+00:00\",\"dateModified\":\"2026-09-24T16:45:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/\"},\"wordCount\":968,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/AISI431-1-scaled-e1767365279724.avif\",\"articleSection\":[\"Articles\"],\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/\",\"url\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/\",\"name\":\"AISI 431 (1.4057 \\\/ UNS S43100) \u2014 AMS 5628 Stainless Steel - Defence Metal\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/AISI431-1-scaled-e1767365279724.avif\",\"datePublished\":\"2025-06-20T13:40:39+00:00\",\"dateModified\":\"2026-09-24T16:45:18+00:00\",\"description\":\"AISI 431 (1.4057 \\\/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/AISI431-1-scaled-e1767365279724.avif\",\"contentUrl\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/AISI431-1-scaled-e1767365279724.avif\",\"width\":2560,\"height\":1638,\"caption\":\"AISI 431 paslanmaz \u00e7elik \u2014 1.4057 \\\/ UNS S43100 \\\/ AMS 5628\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/index.php\\\/2025\\\/06\\\/20\\\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\\\/\\\/www.defencemetal.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AISI 431 (1.4057 \\\/ UNS S43100) \u2014 AMS 5628 Stainless Steel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#website\",\"url\":\"https:\\\/\\\/www.defencemetal.com\\\/\",\"name\":\"Defence Metal\",\"description\":\"for better produce !\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.defencemetal.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"tr\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#organization\",\"name\":\"Defence Metal\",\"url\":\"https:\\\/\\\/www.defencemetal.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/uploads\\\/2024\\\/12\\\/cropped-logopngson.png\",\"contentUrl\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/uploads\\\/2024\\\/12\\\/cropped-logopngson.png\",\"width\":3846,\"height\":649,\"caption\":\"Defence Metal\"},\"image\":{\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"http:\\\/\\\/www.linkedin.com\\\/company\\\/defencemetal\"],\"description\":\"Havac\u0131l\u0131k, savunma, enerji ve makine sekt\u00f6rleri i\u00e7in paslanmaz \u00e7elik, nikel ala\u015f\u0131mlar\u0131, titanyum, al\u00fcminyum ve ala\u015f\u0131ml\u0131 \u00e7elik tedarik eden \u00f6zel ala\u015f\u0131m tedarik\u00e7isi.\",\"email\":\"info@defencemetal.com\",\"telephone\":\"+90 216 709 74 41\",\"legalName\":\"Defence Metal\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"Cevizli Mah. Mustafa Kemal Cad. Hukuk\u00e7ular Towers A Blok No:66A \u0130\u00e7 Kap\u0131 No:111\",\"addressLocality\":\"Kartal\",\"addressRegion\":\"\u0130stanbul\",\"postalCode\":\"34865\",\"addressCountry\":\"TR\"},\"contactPoint\":{\"@type\":\"ContactPoint\",\"contactType\":\"sales\",\"telephone\":\"+90 216 709 74 41\",\"email\":\"info@defencemetal.com\",\"areaServed\":\"TR\",\"availableLanguage\":[\"Turkish\",\"English\"]}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/#\\\/schema\\\/person\\\/94280a98e3bea4aa8b76811f913b167a\",\"name\":\"Defence Metal\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/litespeed\\\/avatar\\\/d36320f98f6cf76cbd3866cdf50d95f3.jpg?ver=1790799820\",\"url\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/litespeed\\\/avatar\\\/d36320f98f6cf76cbd3866cdf50d95f3.jpg?ver=1790799820\",\"contentUrl\":\"https:\\\/\\\/www.defencemetal.com\\\/wp-content\\\/litespeed\\\/avatar\\\/d36320f98f6cf76cbd3866cdf50d95f3.jpg?ver=1790799820\",\"caption\":\"Defence Metal\"},\"sameAs\":[\"https:\\\/\\\/www.defencemetal.com\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel - Defence Metal","description":"AISI 431 (1.4057 \/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel.","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:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/","og_locale":"tr_TR","og_type":"article","og_title":"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel - Defence Metal","og_description":"AISI 431 (1.4057 \/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel.","og_url":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/","og_site_name":"Defence Metal","article_published_time":"2025-06-20T13:40:39+00:00","article_modified_time":"2026-09-24T16:45:18+00:00","og_image":[{"width":2560,"height":1638,"url":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2025\/06\/AISI431-1-scaled-e1767365279724.avif","type":"image\/jpeg"}],"author":"Defence Metal","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Defence Metal","Tahmini okuma s\u00fcresi":"5 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#article","isPartOf":{"@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/"},"author":{"name":"Defence Metal","@id":"https:\/\/www.defencemetal.com\/#\/schema\/person\/94280a98e3bea4aa8b76811f913b167a"},"headline":"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel","datePublished":"2025-06-20T13:40:39+00:00","dateModified":"2026-09-24T16:45:18+00:00","mainEntityOfPage":{"@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/"},"wordCount":968,"commentCount":0,"publisher":{"@id":"https:\/\/www.defencemetal.com\/#organization"},"image":{"@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2025\/06\/AISI431-1-scaled-e1767365279724.avif","articleSection":["Articles"],"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/","url":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/","name":"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel - Defence Metal","isPartOf":{"@id":"https:\/\/www.defencemetal.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#primaryimage"},"image":{"@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2025\/06\/AISI431-1-scaled-e1767365279724.avif","datePublished":"2025-06-20T13:40:39+00:00","dateModified":"2026-09-24T16:45:18+00:00","description":"AISI 431 (1.4057 \/ X17CrNi16-2) is a nickel-alloyed, high strength martensitic stainless steel.","breadcrumb":{"@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#breadcrumb"},"inLanguage":"tr","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/"]}]},{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#primaryimage","url":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2025\/06\/AISI431-1-scaled-e1767365279724.avif","contentUrl":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2025\/06\/AISI431-1-scaled-e1767365279724.avif","width":2560,"height":1638,"caption":"AISI 431 paslanmaz \u00e7elik \u2014 1.4057 \/ UNS S43100 \/ AMS 5628"},{"@type":"BreadcrumbList","@id":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/20\/aisi-431-1-4057-uns-s43100-ams-5628-stainless-steel\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Anasayfa","item":"https:\/\/www.defencemetal.com\/"},{"@type":"ListItem","position":2,"name":"AISI 431 (1.4057 \/ UNS S43100) \u2014 AMS 5628 Stainless Steel"}]},{"@type":"WebSite","@id":"https:\/\/www.defencemetal.com\/#website","url":"https:\/\/www.defencemetal.com\/","name":"Defence Metal","description":"for better produce !","publisher":{"@id":"https:\/\/www.defencemetal.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.defencemetal.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"tr"},{"@type":"Organization","@id":"https:\/\/www.defencemetal.com\/#organization","name":"Defence Metal","url":"https:\/\/www.defencemetal.com\/","logo":{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/www.defencemetal.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2024\/12\/cropped-logopngson.png","contentUrl":"https:\/\/www.defencemetal.com\/wp-content\/uploads\/2024\/12\/cropped-logopngson.png","width":3846,"height":649,"caption":"Defence Metal"},"image":{"@id":"https:\/\/www.defencemetal.com\/#\/schema\/logo\/image\/"},"sameAs":["http:\/\/www.linkedin.com\/company\/defencemetal"],"description":"Havac\u0131l\u0131k, savunma, enerji ve makine sekt\u00f6rleri i\u00e7in paslanmaz \u00e7elik, nikel ala\u015f\u0131mlar\u0131, titanyum, al\u00fcminyum ve ala\u015f\u0131ml\u0131 \u00e7elik tedarik eden \u00f6zel ala\u015f\u0131m tedarik\u00e7isi.","email":"info@defencemetal.com","telephone":"+90 216 709 74 41","legalName":"Defence Metal","address":{"@type":"PostalAddress","streetAddress":"Cevizli Mah. Mustafa Kemal Cad. Hukuk\u00e7ular Towers A Blok No:66A \u0130\u00e7 Kap\u0131 No:111","addressLocality":"Kartal","addressRegion":"\u0130stanbul","postalCode":"34865","addressCountry":"TR"},"contactPoint":{"@type":"ContactPoint","contactType":"sales","telephone":"+90 216 709 74 41","email":"info@defencemetal.com","areaServed":"TR","availableLanguage":["Turkish","English"]}},{"@type":"Person","@id":"https:\/\/www.defencemetal.com\/#\/schema\/person\/94280a98e3bea4aa8b76811f913b167a","name":"Defence Metal","image":{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/www.defencemetal.com\/wp-content\/litespeed\/avatar\/d36320f98f6cf76cbd3866cdf50d95f3.jpg?ver=1790799820","url":"https:\/\/www.defencemetal.com\/wp-content\/litespeed\/avatar\/d36320f98f6cf76cbd3866cdf50d95f3.jpg?ver=1790799820","contentUrl":"https:\/\/www.defencemetal.com\/wp-content\/litespeed\/avatar\/d36320f98f6cf76cbd3866cdf50d95f3.jpg?ver=1790799820","caption":"Defence Metal"},"sameAs":["https:\/\/www.defencemetal.com"]}]}},"_links":{"self":[{"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/posts\/4097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/comments?post=4097"}],"version-history":[{"count":3,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/posts\/4097\/revisions"}],"predecessor-version":[{"id":5831,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/posts\/4097\/revisions\/5831"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/media\/2149"}],"wp:attachment":[{"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/media?parent=4097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/categories?post=4097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.defencemetal.com\/index.php\/wp-json\/wp\/v2\/tags?post=4097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}