{"id":4239,"date":"2026-03-25T08:40:25","date_gmt":"2026-03-25T08:40:25","guid":{"rendered":"https:\/\/pfmscreen.com\/?p=4239"},"modified":"2026-03-31T07:56:33","modified_gmt":"2026-03-31T07:56:33","slug":"composition-chimique-proprietes-mecaniques-et-specifications-du-treillis-metallique-en-acier-inoxydable-duplex","status":"publish","type":"post","link":"https:\/\/pfmscreen.com\/fr\/blogs\/duplex-stainless-steel-wire-mesh-chemical-composition-mechanical-properties-specifications\/","title":{"rendered":"Treillis m\u00e9tallique en acier inoxydable duplex\u00a0: composition chimique, propri\u00e9t\u00e9s m\u00e9caniques et sp\u00e9cifications"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-introduction\">Introduction<\/h2>\n\n\n\n<p>Le treillis m\u00e9tallique en acier inoxydable duplex est un mat\u00e9riau haute performance largement utilis\u00e9 dans les applications industrielles exigeantes. Ce guide complet pr\u00e9sente sa composition chimique, ses propri\u00e9t\u00e9s m\u00e9caniques et ses sp\u00e9cifications techniques afin de vous aider \u00e0 comprendre pourquoi il est le mat\u00e9riau de choix pour les applications critiques de filtration et de structure.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"600\" src=\"https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1.jpg\" alt=\"Treillis m\u00e9tallique en acier inoxydable duplex\" class=\"wp-image-4241\" srcset=\"https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1.jpg 1000w, https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1-300x180.jpg 300w, https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1-768x461.jpg 768w, https:\/\/pfmscreen.com\/wp-content\/uploads\/2026\/03\/Duplex-Stainless-Steel-Wire-Mesh-1-18x12.jpg 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Treillis m\u00e9tallique en acier inoxydable duplex<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-duplex-stainless-steel-wire-mesh\">Qu&#039;est-ce que le treillis m\u00e9tallique en acier inoxydable duplex\u00a0?<\/h2>\n\n\n\n<p>Le treillis m\u00e9tallique en acier inoxydable duplex est tiss\u00e9 \u00e0 partir de fils d&#039;alliage combinant des microstructures aust\u00e9nitiques et ferritiques. Cette structure biphas\u00e9e unique lui conf\u00e8re une r\u00e9sistance m\u00e9canique et une protection contre la corrosion sup\u00e9rieures \u00e0 celles des aciers inoxydables standards. L&#039;ajout de molybd\u00e8ne (Mo) renforce encore ses performances en milieux agressifs.<\/p>\n\n\n\n<p>Les deux niveaux primaires sont\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>UNS S32750 (2507)<\/strong>Super duplex avec une excellente r\u00e9sistance \u00e0 la corrosion par les chlorures<\/li>\n\n\n\n<li><strong>UNS S31803 (2205)<\/strong>: Duplex standard avec des propri\u00e9t\u00e9s \u00e9quilibr\u00e9es<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-chemical-composition\">Composition chimique<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u00c9l\u00e9ment<\/th><th>UNS S32750 (%)<\/th><th>UNS S31803 (%)<\/th><\/tr><tr><td>Chrome (Cr)<\/td><td>24,0 \u2013 26,0<\/td><td>21.0 \u2013 23.0<\/td><\/tr><tr><td>Nickel (Ni)<\/td><td>6.0 \u2013 8.0<\/td><td>4,5 \u2013 6,5<\/td><\/tr><tr><td>Molybd\u00e8ne (Mo)<\/td><td>3.0 \u2013 5.0<\/td><td>2,5 \u2013 3,5<\/td><\/tr><tr><td>Azote (N)<\/td><td>0,24 \u2013 0,32<\/td><td>0,08 \u2013 0,20<\/td><\/tr><tr><td>Mangan\u00e8se (Mn)<\/td><td>\u2264 1,2<\/td><td>\u2264 2.0<\/td><\/tr><tr><td>Carbone (C)<\/td><td>\u2264 0,030<\/td><td>\u2264 0,030<\/td><\/tr><tr><td>Silicium (Si)<\/td><td>\u2264 0,8<\/td><td>\u2264 1,0<\/td><\/tr><tr><td>Phosphore (P)<\/td><td>\u2264 0,035<\/td><td>\u2264 0,030<\/td><\/tr><tr><td>Soufre (S)<\/td><td>\u2264 0,020<\/td><td>\u2264 0,020<\/td><\/tr><tr><td>Fer (Fe)<\/td><td>\u00c9quilibre<\/td><td>\u00c9quilibre<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>La teneur \u00e9lev\u00e9e en chrome, en molybd\u00e8ne et en azote offre une r\u00e9sistance exceptionnelle \u00e0 la corrosion par piq\u00fbres, \u00e0 la corrosion caverneuse et \u00e0 la fissuration par corrosion sous contrainte.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-mechanical-properties\">Propri\u00e9t\u00e9s m\u00e9caniques<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Propri\u00e9t\u00e9<\/th><th>UNS S32750<\/th><th>UNS S31803<\/th><th>Unit\u00e9<\/th><\/tr><tr><td>R\u00e9sistance \u00e0 la traction<\/td><td>\u2265 795<\/td><td>\u2265 620<\/td><td>MPa<\/td><\/tr><tr><td>Limite d&#039;\u00e9lasticit\u00e9 (d\u00e9calage 0,2%)<\/td><td>\u2265 550<\/td><td>\u2265 450<\/td><td>MPa<\/td><\/tr><tr><td>Allongement (en 50 mm)<\/td><td>\u2265 15<\/td><td>\u2265 25<\/td><td>%<\/td><\/tr><tr><td>Duret\u00e9 (Brinell)<\/td><td>\u2264 293<\/td><td>\u2264 290<\/td><td>HB<\/td><\/tr><tr><td>R\u00e9sistance aux chocs (Charpy V)<\/td><td>\u2265 60<\/td><td>\u2265 45<\/td><td>J \u00e0 -46\u00b0C<\/td><\/tr><tr><td>Module d&#039;\u00e9lasticit\u00e9<\/td><td>~200<\/td><td>~200<\/td><td>GPa<\/td><\/tr><tr><td>Conductivit\u00e9 thermique<\/td><td>14<\/td><td>19<\/td><td>W\/m\u00b7K \u00e0 100 \u00b0C<\/td><\/tr><tr><td>Coefficient de dilatation thermique<\/td><td>13.5<\/td><td>13<\/td><td>\u00b5m\/m\u00b7K (20\u2013100\u00b0C)<\/td><\/tr><tr><td>Densit\u00e9<\/td><td>7.8<\/td><td>7.8<\/td><td>g\/cm\u00b3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>L&#039;UNS S32750 offre une r\u00e9sistance plus \u00e9lev\u00e9e et une meilleure t\u00e9nacit\u00e9 \u00e0 basse temp\u00e9rature, tandis que l&#039;UNS S31803 offre un allongement et une conductivit\u00e9 thermique sup\u00e9rieurs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-weave-patterns\">Motifs de tissage<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-plain-weave\">Tissage uni<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mod\u00e8le le plus simple et le plus courant<\/li>\n\n\n\n<li>Chaque fil passe alternativement au-dessus et en dessous d&#039;un autre fil.<\/li>\n\n\n\n<li>Bon \u00e9quilibre entre filtration et d\u00e9bit<\/li>\n\n\n\n<li>Convient aux applications \u00e0 usage g\u00e9n\u00e9ral<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-twill-weave\">Tissage serg\u00e9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chaque fil passe au-dessus et en dessous de deux fils.<\/li>\n\n\n\n<li>Cr\u00e9e un aspect diagonal<\/li>\n\n\n\n<li>Maille plus serr\u00e9e avec des ouvertures plus petites<\/li>\n\n\n\n<li>D\u00e9bits plus \u00e9lev\u00e9s gr\u00e2ce \u00e0 une surface ouverte accrue<\/li>\n\n\n\n<li>Id\u00e9al pour une meilleure r\u00e9tention des particules<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-advantages\">Principaux avantages<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>R\u00e9sistance exceptionnelle \u00e0 la corrosion<\/strong><br><br>Excellente r\u00e9sistance aux acides organiques et inorganiques, notamment aux chlorures et \u00e0 l&#039;acide chlorhydrique dilu\u00e9.<\/li>\n\n\n\n<li><strong>R\u00e9sistance m\u00e9canique exceptionnelle<\/strong><br><br>R\u00e9sistance \u00e9lev\u00e9e \u00e0 la traction et \u00e0 la compression, adapt\u00e9e aux environnements \u00e0 haute pression et \u00e0 fort impact.<\/li>\n\n\n\n<li><strong>R\u00e9sistance sup\u00e9rieure \u00e0 la corrosion par piq\u00fbres et \u00e0 la corrosion caverneuse<\/strong><br><br>Id\u00e9al pour les environnements marins et chimiques sujets \u00e0 la corrosion localis\u00e9e.<\/li>\n\n\n\n<li><strong>Bonne soudabilit\u00e9 et fabrication<\/strong><br><br>Facile \u00e0 former et \u00e0 souder pour les structures et syst\u00e8mes complexes.<\/li>\n\n\n\n<li><strong>Stabilit\u00e9 thermique<\/strong><br><br>Faible dilatation thermique et conductivit\u00e9 thermique \u00e9lev\u00e9e pour une utilisation dans des environnements \u00e0 haute temp\u00e9rature ou cycliques.<\/li>\n\n\n\n<li><strong>Longue dur\u00e9e de vie<\/strong><br><br>R\u00e9duction des co\u00fbts de maintenance et de remplacement dans les op\u00e9rations industrielles critiques.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-applications-by-grade\">Candidatures par niveau<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-uns-s32750-applications\">Demandes UNS S32750<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Composants de filtration et de structure pour l&#039;industrie p\u00e9troli\u00e8re et gazi\u00e8re<\/li>\n\n\n\n<li>Filtres et pompes de dessalement d&#039;eau de mer<\/li>\n\n\n\n<li>centrale \u00e9lectrique et tour d&#039;absorption chimique<\/li>\n\n\n\n<li>R\u00e9cipients sous pression et r\u00e9servoirs de stockage<\/li>\n\n\n\n<li>Plateformes offshore et syst\u00e8mes d&#039;eau de mer<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-uns-s31803-applications\">Demandes UNS S31803<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filtration dans l&#039;industrie des p\u00e2tes et papiers<\/li>\n\n\n\n<li>Filtres pour proc\u00e9d\u00e9s p\u00e9trochimiques<\/li>\n\n\n\n<li>\u00c9quipements et composants pour la transformation des aliments<\/li>\n\n\n\n<li>syst\u00e8mes de traitement et de purification des eaux us\u00e9es<\/li>\n\n\n\n<li>Syst\u00e8mes de blanchiment et de s\u00e9chage du papier<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Le treillis m\u00e9tallique en acier inoxydable duplex offre une combinaison optimale de r\u00e9sistance, de protection contre la corrosion et de rentabilit\u00e9. Que vous optiez pour l&#039;UNS S32750 pour les environnements extr\u00eames ou l&#039;UNS S31803 pour les applications industrielles courantes, ce mat\u00e9riau garantit des performances fiables m\u00eame dans des conditions exigeantes.<\/p>\n\n\n\n<p>Pour des solutions personnalis\u00e9es et une assistance technique, contactez notre \u00e9quipe d&#039;ing\u00e9nieurs afin de discuter de vos besoins sp\u00e9cifiques.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\u00c0 propos de PFM SCREEN<\/strong><\/p>\n\n\n\n<p>PFM SCREEN est un fabricant de premier plan de treillis m\u00e9talliques industriels et d&#039;\u00e9l\u00e9ments filtrants. Forts de plus de 30 ans d&#039;exp\u00e9rience, nous fournissons des treillis m\u00e9talliques duplex en acier inoxydable de haute qualit\u00e9 aux industries p\u00e9troli\u00e8re et gazi\u00e8re, chimique, maritime et agroalimentaire du monde entier.<\/p>\n\n\n\n<p>\ud83d\udcde <strong>T\u00e9l\u00e9phone<\/strong>: +86-316-2188808<br>\n\ud83d\udcf1 <strong>WhatsApp<\/strong>: +86-15369379157<br>\n\ud83d\udce7 <strong>E-mail<\/strong>: ventes@pfmscreen.com<br>\n\ud83c\udf10 <strong>Site web<\/strong>: https:\/\/www.pfmscreen.com\/<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Duplex stainless steel wire mesh is a high-performance material widely used in demanding industrial applications. This comprehensive guide covers its chemical composition, mechanical properties, and technical specifications to help you understand why it&#8217;s the preferred choice for critical filtration and structural applications. What is Duplex Stainless Steel Wire Mesh? Duplex stainless steel wire mesh [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4241,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-4239","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Duplex Stainless Steel Wire Mesh: Chemical Composition, Mechanical Properties &amp; Specifications - PFM Screen | Industrial Metal Wire Mesh &amp; Mesh Filters Manufacturer<\/title>\n<meta name=\"description\" content=\"Duplex stainless steel wire mesh is a high-performance material widely used in demanding industrial applications. 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