{"id":4113,"date":"2025-06-24T09:47:13","date_gmt":"2025-06-24T06:47:13","guid":{"rendered":"https:\/\/www.defencemetal.com\/?p=4113"},"modified":"2026-09-24T14:46:46","modified_gmt":"2026-09-24T11:46:46","slug":"monel-400-2-4360-uns-n04400-ams-5511-ams-5513-ams-5639-nickel-copper-alloy","status":"publish","type":"post","link":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/24\/monel-400-2-4360-uns-n04400-ams-5511-ams-5513-ams-5639-nickel-copper-alloy\/","title":{"rendered":"Monel 400 (2.4360 \/ UNS N04400) \u2014 AMS 4544 \/ AMS 4675 Nickel-Copper Alloy"},"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 Monel 400.<\/strong> For dimensions, standard equivalents, stock and quotations, take a look at the <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/monel-400\/\"><strong>Monel 400 product page<\/strong><\/a>.<\/div>\n<p><!-- \/dm-urun-link --><\/p>\n<h3><b>Monel 400 (UNS N04400 \/ ASTM B127): A Nickel-Copper Alloy with High Corrosion Resistance<\/b><\/h3>\n<h3><b>Alloy Definition and Chemical Composition<\/b><\/h3>\n<p class=\"p3\"><span class=\"s2\">Monel 400<\/span> is an alloy consisting essentially of <span class=\"s2\">nickel and copper<\/span>, with a nickel content in the range of approximately 63\u201370%. This alloy is known for its excellent <a href=\"https:\/\/en.wikipedia.org\/wiki\/Korozyon\">corrosion<\/a> resistance to sea water and chemical environments, its high strength and its ductility. Monel 400 shows excellent resistance especially to <span class=\"s2\">hydrofluoric acid<\/span>, <span class=\"s2\">sea water<\/span>, <span class=\"s2\">acids<\/span>, <span class=\"s2\">alkalis<\/span> and <span class=\"s2\">neutral salt solutions<\/span>.<\/p>\n<p class=\"p4\"><b>Chemical composition (typical):<\/b><b><\/b><\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>Nickel (Ni)<\/b><\/span>: 63.0% min<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Copper (Cu)<\/b><\/span>: 28.0\u201334.0%<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Iron (Fe)<\/b><\/span>: 2.5% max<\/li>\n<li class=\"p1\"><b>Manganese (Mn)<\/b><span class=\"s1\">: 2.0% max<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Carbon (C)<\/b><\/span>: 0.3% max<\/li>\n<li class=\"p1\"><b>Silicon (Si)<\/b><span class=\"s1\">: 0.5% max<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Sulphur (S)<\/b><\/span>: 0.024% max<\/li>\n<\/ul>\n<p class=\"p3\">This simple, solid solution alloy cannot be hardened by precipitation hardening; instead its mechanical strength is increased by cold forming.<\/p>\n<hr>\n<h3><b>Monel 400 <\/b><b>Standards and Specifications<\/b><\/h3>\n<p class=\"p3\"><span class=\"s2\"><b>Monel 400<\/b><\/span> appears in many international standards. These standards set out both the chemical and the mechanical properties of the material:<\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM B127<\/b><\/span> \u2013 For Monel 400 plate, sheet and strip<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM B164<\/b><\/span> \u2013 For Monel 400 bar and wire products<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM B165<\/b><\/span> \u2013 Seamless pipes<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>UNS N04400<\/b><\/span> \u2013 Unified Numbering System code<\/li>\n<li class=\"p1\"><b>AMS 4675<\/b><span class=\"s1\">, <\/span><b>AMS 4574<\/b><\/li>\n<li class=\"p1\"><b><\/b><b>ISO 6208<\/b><\/li>\n<li class=\"p1\"><b><\/b><b>DIN 2.4360 \/ 2.4361<\/b><\/li>\n<\/ul>\n<p class=\"p3\">Monel 400 products manufactured within the framework of these standards show suitability for high performance applications in the chemical, energy and marine sectors.<\/p>\n<hr>\n<h3><b>Monel 400 <\/b><b>Trade Names and Equivalent Materials<\/b><\/h3>\n<p class=\"p3\">Monel 400 is marketed under various trade names by specialist producers:<\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>Monel\u00ae 400<\/b><\/span> \u2013 Registered brand of Special Metals Corporation (SMC)<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Alloy 400<\/b><\/span> \u2013 Common synonymous name<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Nicrofer 3826<\/b><\/span> \u2013 Thyssenkrupp VDM equivalent<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Nicorros\u00ae 400<\/b><\/span> \u2013 Haynes International<\/li>\n<li class=\"p1\"><b>2.4360 (bar, pipe)<\/b><span class=\"s1\">, <\/span><b>2.4361 (sheet, plate)<\/b><span class=\"s1\"> \u2013 DIN\/Werkstoff numbers<\/span><\/li>\n<\/ul>\n<p class=\"p3\">These trade names may appear as different variants in the product catalogues encountered during the purchasing process. All of them, however, share the same technical properties as UNS N04400.<\/p>\n<hr>\n<h3><b>Mechanical and Physical Properties<\/b><\/h3>\n<p class=\"p3\">Monel 400 stands out with both its mechanical strength and its excellent ductility. It offers high tensile strength at room temperature and is suitable for cold forming.<\/p>\n<ul>\n<li class=\"p1\"><b>Tensile Strength:<\/b><span class=\"s1\"> 480\u2013620 MPa<\/span><\/li>\n<li class=\"p1\"><b>Yield Strength (0.2% offset):<\/b><span class=\"s1\"> 170\u2013275 MPa<\/span><\/li>\n<li class=\"p1\"><b>Elongation (%):<\/b><span class=\"s1\"> 30\u201340%<\/span><\/li>\n<li class=\"p1\"><b>Brinell Hardness (HB):<\/b><span class=\"s1\"> 110\u2013180<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Density:<\/b><\/span> 8.80 g\/cm\u00b3<\/li>\n<li class=\"p1\"><b>Melting range:<\/b><span class=\"s1\"> 1300\u20131350 \u00b0C<\/span><\/li>\n<li class=\"p1\"><b>Thermal conductivity:<\/b><span class=\"s1\"> ~22 W\/m\u00b7K<\/span><\/li>\n<li class=\"p1\"><b>Electrical conductivity:<\/b><span class=\"s1\"> ~34% IACS<\/span><\/li>\n<\/ul>\n<p class=\"p3\">Monel 400 preserves its mechanical and chemical strength in the temperature range from -200 \u00b0C to 550 \u00b0C. That it shows no embrittlement at low temperatures provides an advantage for cryogenic applications.<\/p>\n<hr>\n<h3><b>Application Areas<\/b><\/h3>\n<p class=\"p3\">The principal reason Monel 400 is preferred is the durability it shows in chemically aggressive environments. Its application areas are summarised below:<\/p>\n<p class=\"p1\"><b>1.Chemical and Petrochemical Industry<\/b><b><\/b><\/p>\n<p class=\"p1\">*Hydrofluoric acid transport and storage tanks<br \/>\n*Reactors and exchangers working with alkaline solutions<br \/>\n*Chemical pump and valve components<\/p>\n<p class=\"p1\"><b>2.Marine and Shipbuilding<\/b><b><\/b><\/p>\n<p class=\"p1\">*Sea water pipelines, condensers<br \/>\n*Pump shafts, propeller shafts<br \/>\n*Desalination systems<\/p>\n<p class=\"p1\"><b>3.Energy and Nuclear Industry<\/b><b><\/b><\/p>\n<p class=\"p1\">*Nuclear reactor water systems<br \/>\n*Heat exchanger tubes<br \/>\n*Fuel processing equipment<\/p>\n<p class=\"p1\"><b>4.Aerospace<\/b><b><\/b><\/p>\n<p class=\"p1\">*Fuel tanks and connection equipment<br \/>\n*Exhaust and heat transfer systems<\/p>\n<p class=\"p1\"><b>5.Food and Beverage Industry<\/b><b><\/b><\/p>\n<p class=\"p1\">*Process lines using caustic soda in sugar production<br \/>\n*Agitators and tanks in contact with acidic media<\/p>\n<p class=\"p3\">Monel 400 differs from its alternatives especially through its durability against sea water and alkaline solutions.<\/p>\n<hr>\n<h3><b>Advantages<\/b><\/h3>\n<ul>\n<li class=\"p1\"><b>High Corrosion Resistance: <\/b>It shows top level durability in sea water, saline solutions, acids and alkaline environments.<\/li>\n<li class=\"p1\"><b>Remaining Ductile at Low Temperature: <\/b>It preserves its ductility without embrittlement even in cryogenic conditions.<\/li>\n<li class=\"p1\"><b>High Strength-Ductility Balance: <\/b>Thanks to its high tensile strength and elongation value above 30% it can be formed under difficult conditions.<\/li>\n<li class=\"p1\"><b>Weldability: <\/b>It can be welded with nickel-based welding electrodes. It has a low tendency to cracking.<\/li>\n<li class=\"p1\"><b>Good Mechanical Machinability: <\/b>With attention to tool life, it can be machined with high surface quality under suitable conditions.<\/li>\n<\/ul>\n<hr>\n<h3><b>Disadvantages<\/b><\/h3>\n<ul>\n<li class=\"p1\"><b>High Cost: <\/b>Because of its nickel-based structure it is expensive compared with carbon steels and stainless steels.<\/li>\n<li class=\"p1\"><b>Sensitivity to Acid Oxidation: <\/b>It has low resistance in the face of oxidising acids such as nitric acid.<\/li>\n<li class=\"p1\"><b>Not Suitable for Precipitation Hardening: <\/b>Strength cannot be increased by heat treatment. It gains strength only by cold forming.<\/li>\n<li class=\"p1\"><b>High Density: <\/b>Its density of 8.8 g\/cm\u00b3 may be limiting in systems where the weight criterion is critical in the design.<\/li>\n<\/ul>\n<hr>\n<h3><b>Conclusion and Engineering Evaluation<\/b><\/h3>\n<p class=\"p3\"><span class=\"s2\"><b>Monel 400<\/b><\/span> offers a critical engineering solution in the <span class=\"s2\"><b>chemical process<\/b><\/span>, <span class=\"s2\"><b>marine<\/b><\/span>, <span class=\"s2\"><b>energy<\/b><\/span> and <span class=\"s2\"><b>aerospace<\/b><\/span> sectors thanks to its high corrosion durability and ductility. Its <span class=\"s2\"><b>unrivalled durability<\/b><\/span> in non-oxidising chemical environments and in sea water makes it longer-lived and more reliable than <span class=\"s2\"><b>stainless steel and bronze alloys<\/b><\/span>.<\/p>\n<p class=\"p3\">However costly an alloy it may be, the advantage of <span class=\"s2\"><b>the low maintenance and high performance Monel 400 offers throughout its service life<\/b><\/span> reduces the total cost of ownership and thereby makes it the preferred choice. Especially for designers seeking a nickel-based high performance solution, Monel 400 is technically an optimum choice.<\/p>\n<p>&nbsp;<\/p>\n<h5>#Monel400<br \/>\n#Alloy400<br \/>\n#UNSN04400<br \/>\n#2.4360<br \/>\n#2.4361<br \/>\n#ASTMB164<br \/>\n#ASTMB127<br \/>\n#ASTMB165<br \/>\n#ASTMB564<br \/>\n#AMS4544<br \/>\n#AMS4675<br \/>\n#AMS4574<\/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 Monel 400 (2.4360)<\/div>\n<div style=\"padding:2px 12px 8px;\">\n<table id=\"tablepress-60\" class=\"tablepress tablepress-id-60\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Kimyasal Bile\u015fimi<br \/>\n(Monel 400)<br \/>\n<strong><\/th><td class=\"column-2\"><\/td><th class=\"column-3\">Oda S\u0131cakl\u0131\u011f\u0131ndaki<br \/>\nMekanik \u00d6zellikleri<br \/>\n<strong><\/th><td class=\"column-4\"><\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<th class=\"column-1\">Kalite <strong><\/th><th class=\"column-2\">Monel 400 (2.4360 \u2013 2.4361)<\/th><th class=\"column-3\">\u00d6zellikler<\/th><th class=\"column-4\">De\u011ferler<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-hover\">\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Ni<\/td><td class=\"column-2\">min %63.0<\/td><td class=\"column-3\">\u00d6z k\u00fctlesi (\u00d6zg\u00fcl a\u011f\u0131rl\u0131\u011f\u0131)<\/td><td class=\"column-4\">8800 kg\/m\u00b3<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Fe<\/td><td class=\"column-2\">max %2.50<\/td><td class=\"column-3\">Erime S\u0131cakl\u0131\u011f\u0131<\/td><td class=\"column-4\">1300-1350\u00b0C aras\u0131<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">C<\/td><td class=\"column-2\">max %0.30<\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Mn<\/td><td class=\"column-2\">max %2.00<\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Si<\/td><td class=\"column-2\">max %0.50<\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">S<\/td><td class=\"column-2\">max %0.024<\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">Cu<\/td><td class=\"column-2\">%28.0-34.0<\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-60 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 Monel 400 (2.4360) \u2014 to AMS 4675, AMS 4544 standards, in the dimensions and forms required. For stock availability and pricing:<\/p>\n<p><a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/monel-400\/\" style=\"display:inline-block;color:#ffffff;background:#24BEE5;text-decoration:none;font-weight:600;font-size:14px;padding:10px 17px;line-height:1.2;\">Monel 400 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\/en\/monel-k500\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Monel K-500<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/24\/waspaloy-2-4654-uns-n07001-ams-5544-ams-5706-nickel-super-alloy\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Waspaloy<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/24\/nimonic-80a-uns-n07080-ams-4378-ams-5829-nickel-super-alloy\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Nimonic 80A<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/01\/haynes-25-l-605-ams-5537-ams-5759-cobalt-superalloy\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Haynes 25<\/a>  \u00b7  <a href=\"https:\/\/www.defencemetal.com\/index.php\/en\/nickel-alloys\/\" style=\"color:#666;font-weight:600;text-decoration:none;\">All nickel alloys \u2192<\/a><\/p>\n<\/div>\n<p><!-- \/dm-benzer --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Monel 400 (2.4360 \/ UNS N04400 \/ ASTM B127) is a nickel-copper alloy with excellent resistance to sea water, hydrofluoric acid and alkalis. Chemical composition, mechanical and physical properties, ASTM B127 \/ B164 \/ B165 and AMS standards, trade names, chemical, marine, nuclear and food industry applications.<\/p>\n","protected":false},"author":1,"featured_media":2128,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-4113","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>Monel 400 (2.4360 \/ UNS N04400) \u2014 AMS 4544 \/ AMS 4675 Nickel-Copper Alloy - Defence Metal<\/title>\n<meta name=\"description\" content=\"Monel 400 (2.4360 \/ UNS N04400 \/ ASTM B127) is a nickel-copper alloy with excellent resistance to sea water, hydrofluoric acid and alkalis.\" \/>\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\/24\/monel-400-2-4360-uns-n04400-ams-5511-ams-5513-ams-5639-nickel-copper-alloy\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Monel 400 (2.4360 \/ UNS N04400) \u2014 AMS 4544 \/ AMS 4675 Nickel-Copper Alloy - 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