{"id":538,"date":"2025-06-16T07:54:24","date_gmt":"2025-06-16T07:54:24","guid":{"rendered":"https:\/\/dura-alloy.com\/?post_type=product&p=538"},"modified":"2025-06-16T07:54:24","modified_gmt":"2025-06-16T07:54:24","slug":"254smo","status":"publish","type":"product","link":"https:\/\/www.dura-alloy.com\/fr\/produit\/254smo\/","title":{"rendered":"254SMO"},"content":{"rendered":"

L'offre de notre soci\u00e9t\u00e9 comprend<\/span><\/strong><\/p>\n

Pi\u00e8ces forg\u00e9es non standard, barres rondes, plaques\/ceintures en acier, raccords de tuyauterie \u00e0 bride, tuyaux sans soudure, capillaires, etc. N'h\u00e9sitez pas \u00e0 vous renseigner !<\/span><\/strong><\/p>\n

1. Introduction to 254SMO materials<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 254SMO is an austenitic stainless steel. Due to its high molybdenum content, it has extremely high resistance to pit corrosion and crevice corrosion. Such grades of stainless steel are developed and developed for use in environments containing halides such as sea water. 254SMO also has good resistance to uniform corrosion. Especially among halide-containing acids, this steel is better than ordinary stainless steel.<\/span><\/p>\n

2. 254SMO chemical composition<\/span><\/strong><\/p>\n\n\n\n\n\n
alliage<\/span><\/td>\n%<\/td>\nChrome Cr<\/span><\/td>\nCarbone C<\/span><\/td>\nSilicium Si<\/span><\/td>\nPhosphore P<\/span><\/td>\nSoufre S<\/span><\/td>\nNi<\/span><\/td>\nStone Mo<\/span><\/td>\n\u94dc avec<\/span><\/td>\nNitrogen N<\/span><\/td>\n\u94c8 What<\/span><\/td>\n<\/tr>\n
254smo<\/span><\/td>\nValeur minimale<\/span><\/td>\n19.5<\/td>\n–<\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n17.5<\/td>\n6.0<\/td>\n0.5<\/td>\n0.18<\/td>\n0.03<\/td>\n<\/tr>\n
Valeur maximale<\/span><\/td>\n20.5<\/td>\n0.02<\/td>\n0.80<\/td>\n0.030<\/td>\n0.010<\/td>\n18.5<\/td>\n6.5<\/td>\n1.0<\/td>\n0.20<\/td>\n0.08<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3. 254SMO physical properties<\/span><\/strong><\/p>\n

Density: 8.24g\/cm3,<\/span><\/p>\n

Melting point: 1320-1390 \u2103,<\/span><\/p>\n

Magnetic: None<\/span><\/p>\n

4. 254SMO corrosion resistance<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 254SMO also has good resistance to uniform corrosion. Especially among halide-containing acids, this steel is better than ordinary stainless steel. Its C content is <0.03%, so it is called pure austenitic stainless steel (<0.01% is also called super austenitic stainless steel).<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 Super stainless steel is a special stainless steel. First of all, it is different from ordinary stainless steel in terms of chemical composition. It refers to a high alloy stainless steel containing high nickel, high chromium and high molybdenum. Among them, the more famous is 254SMo containing 6%Mo. This type of steel has very good local corrosion resistance. It has good pitting resistance (PI \u226540) and good stress corrosion resistance under seawater, inflation, gaps, and low-speed erosion conditions. It is a substitute for Ni-based alloys and titanium alloys. Secondly, in terms of high temperature or corrosion resistance, it has better high temperature or corrosion resistance, and is irreplaceable to 304 stainless steel. In addition, in terms of stainless steel classification, the metallographic structure of special stainless steel is a stable austenite metallographic structure.<\/span><\/p>\n

V. 254SMO application fields<\/span><\/strong><\/p>\n

    \n
  • Ocean: marine structures of the sea environment, seawater desalination, seawater aquaculture, seawater heat exchange, etc.<\/span><\/li>\n
  • Environmental protection field: flue gas desulfurization devices for thermal power generation, wastewater treatment, etc.<\/span><\/li>\n
  • Energy field: atomic power generation, comprehensive utilization of coal, tide power generation, etc.<\/span><\/li>\n
  • Petrochemical field: oil refining, chemical and chemical equipment, etc.<\/span><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

    Our company’s scope of supply includes Non-standard forgings, round rods, steel plates\/steel belts, flange pipe fittings, seamless pipes, capillaries, etc. […]<\/p>","protected":false},"featured_media":539,"template":"","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":"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":"","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-4)","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-4)","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-4)","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":""}}},"product_brand":[],"product_cat":[30],"product_tag":[],"class_list":{"0":"post-538","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-advanced-stainless-steel","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product\/538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product\/538\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/media\/539"}],"wp:attachment":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/media?parent=538"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product_brand?post=538"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product_cat?post=538"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product_tag?post=538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}