{"id":6988,"date":"2024-07-09T10:10:00","date_gmt":"2024-07-09T08:10:00","guid":{"rendered":"https:\/\/mfinox.com\/classes-de-resistance-a-la-corrosion-crc-des-aciers-inoxydables\/"},"modified":"2024-07-09T10:10:00","modified_gmt":"2024-07-09T08:10:00","slug":"classes-de-resistance-a-la-corrosion-crc-des-aciers-inoxydables","status":"publish","type":"post","link":"https:\/\/mfinox.com\/fr\/classes-de-resistance-a-la-corrosion-crc-des-aciers-inoxydables\/","title":{"rendered":"Classes de r\u00e9sistance \u00e0 la corrosion (CRC) des aciers inoxydables"},"content":{"rendered":"<h2>Classes de r\u00e9sistance \u00e0 la corrosion des aciers inoxydables<\/h2>\n<p>La norme europ\u00e9enne EN 1993-1-4 d\u00e9finit les classes de r\u00e9sistance \u00e0 la corrosion des aciers inoxydables afin de garantir l&rsquo;int\u00e9grit\u00e9 structurelle dans diff\u00e9rents environnements. La norme classe les aciers inoxydables en diff\u00e9rentes cat\u00e9gories en fonction de leur r\u00e9sistance \u00e0 la corrosion atmosph\u00e9rique et aqueuse. <\/p>\n<ol>\n<li><strong>Classe 1 (CR Class 1) :<\/strong> cette classe comprend les aciers inoxydables pr\u00e9sentant une r\u00e9sistance limit\u00e9e \u00e0 la corrosion, g\u00e9n\u00e9ralement utilis\u00e9s dans des applications internes ou dans des environnements pr\u00e9sentant un faible risque de corrosion.<br \/>\nLes exemples incluent les aciers inoxydables ferritiques et martensitiques tels que 1.4003 (X2CrNi12) et 1.4016 (X6Cr17). <\/li>\n<li><strong>Classe 2 (CR Class 2) :<\/strong> les aciers de cette classe offrent une r\u00e9sistance mod\u00e9r\u00e9e \u00e0 la corrosion et conviennent aux environnements ruraux et urbains faiblement pollu\u00e9s.<br \/>\nLes qualit\u00e9s courantes comprennent les aciers inoxydables aust\u00e9nitiques tels que 1.4301 (X5CrNi18-10) et 1.4307 (X2CrNi18-9). <\/li>\n<li><strong>Classe 3 (CR Classe 3) :<\/strong> les aciers inoxydables de cette classe offrent une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la corrosion et sont utilis\u00e9s dans des environnements plus agressifs, tels que les atmosph\u00e8res industrielles ou les zones c\u00f4ti\u00e8res avec une exposition mod\u00e9r\u00e9e aux chlorures.<br \/>\nLes nuances typiques sont 1.4401 (X5CrNiMo17-12-2) et 1.4404 (X2CrNiMo17-12-2). <\/li>\n<li><strong>Classe 4 (CR Class 4) :<\/strong> ces aciers offrent une tr\u00e8s grande r\u00e9sistance \u00e0 la corrosion et conviennent aux environnements tr\u00e8s corrosifs, y compris les atmosph\u00e8res marines et les environnements charg\u00e9s en chlorure.<br \/>\nLes exemples incluent 1.4432 (X2CrNiMo17-12-3) et 1.4435 (X2CrNiMo18-14-3). <\/li>\n<li><strong>Classe 5 (CR Classe 5) :<\/strong> cette classe sup\u00e9rieure comprend les aciers inoxydables pr\u00e9sentant une r\u00e9sistance exceptionnelle \u00e0 la corrosion, utilis\u00e9s dans des environnements extr\u00eamement agressifs tels que l&rsquo;exposition \u00e0 l&rsquo;eau de mer ou les usines de traitement chimique. Les aciers inoxydables super aust\u00e9nitiques et duplex tels que 1.4547 (X1CrNiMoCuN20-18-7) et 1.4462 (X2CrNiMoN22-5-3) entrent dans cette cat\u00e9gorie. <\/li>\n<\/ol>\n<h3>Exemples d&rsquo;application :<\/h3>\n<ul>\n<li><strong>Classe 1 et 2 :<\/strong> composants structurels dans des applications int\u00e9rieures et ext\u00e9rieures \u00e0 faible risque.<\/li>\n<li><strong>Classe 3 :<\/strong> infrastructures urbaines, environnements industriels mod\u00e9r\u00e9s.<\/li>\n<li><strong>Classe 4 :<\/strong> Infrastructures c\u00f4ti\u00e8res, applications industrielles avec une exposition mod\u00e9r\u00e9e au chlorure.<\/li>\n<li><strong>Classe 5 :<\/strong> Structures marines, \u00e9quipements de traitement chimique, environnements industriels hautement corrosifs.<\/li>\n<\/ul>\n<p>En r\u00e9sum\u00e9, la norme EN 1993-1-4 fournit une classification syst\u00e9matique pour guider la s\u00e9lection des aciers inoxydables en fonction de leur r\u00e9sistance \u00e0 la corrosion, garantissant ainsi la durabilit\u00e9 et la s\u00e9curit\u00e9 dans des conditions environnementales variables.<\/p>\n<h3>Liste des mat\u00e9riaux :<\/h3>\n<table width=\"670\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" colspan=\"5\" width=\"670\">\n<h4><strong>Classes de r\u00e9sistance \u00e0 la corrosion CRC<\/strong><\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">\n<h5><strong>I  <\/strong><\/h5>\n<p><strong>(CRF=1)<\/strong><\/td>\n<td style=\"text-align: center;\">\n<h5><strong>II  <\/strong><\/h5>\n<p><strong>(CRF -7 \u00e0 0)<\/strong><\/td>\n<td style=\"text-align: center;\">\n<h5><strong>III  <\/strong><\/h5>\n<p><strong>(CRF -7 \u00e0 -15)<\/strong><\/td>\n<td style=\"text-align: center;\">\n<h5><strong>IV  <\/strong><\/h5>\n<p><strong>(CRF -15 \u00e0 -20)<\/strong><\/td>\n<td style=\"text-align: center;\">\n<h5><strong>V<\/strong><\/h5>\n<p><strong>&lt;(CRF -20)<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"color: #ff9900;\">1.4003<\/span><\/td>\n<td style=\"text-align: center;\" width=\"134\"><a href=\"https:\/\/mfinox.com\/materiali\/14301-X5-Cr-Ni-18-10-S30403\"><span style=\"color: #33cccc;\">1.4301<\/span><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14401-X5-CrNiMo-17-12-2-S31600\"><span style=\"color: #000080;\">1.4401<\/span><\/a><\/td>\n<td style=\"text-align: center;\" width=\"134\"><span style=\"color: #008000;\">1.4439<\/span><\/td>\n<td style=\"text-align: center;\" width=\"134\"><span style=\"color: #008000;\">1.4565<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"color: #ff9900;\">1.4016<\/span><\/td>\n<td style=\"text-align: center;\" width=\"134\"><a href=\"https:\/\/mfinox.com\/materiali\/14307-X2CrNi19-11-304L-S30403-A193-B8-A320-B8\"><span style=\"color: #33cccc;\">1.4307<\/span><\/a><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #000080;\">1.4404<\/span><\/td>\n<td style=\"text-align: center;\" width=\"134\"><a href=\"https:\/\/mfinox.com\/materiali\/14539-X1-NiCrMoCu-25-20-5-B649-N08904-UranusB6\"><span style=\"color: #008000;\">1.4539<\/span><\/a><\/td>\n<td style=\"text-align: center;\" width=\"134\"><a href=\"https:\/\/mfinox.com\/materiali\/14529-X1-NiCrMoCuN-25-20-7-N08926\"><span style=\"color: #008000;\">1.4529<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"color: #ff9900;\">1.4512<\/span><\/td>\n<td style=\"text-align: center;\" width=\"134\"><span style=\"color: #33cccc;\">1.4311<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14435-X2-CrNiMo-17-12-2-S31603\"><span style=\"color: #000080;\">1.4435<\/span><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14462-X3CrNiMoN22-5-3-Alloy-2205-A182-F51-S31803-SAF-2205\"><span style=\"color: #993300;\">1.4462<\/span><\/a><\/td>\n<td style=\"text-align: center;\" width=\"134\"><a href=\"https:\/\/mfinox.com\/materiali\/14547-X1CrNiMoCuN20-18-7-A182-F44-S31254-254-SMO\"><span style=\"color: #008000;\">1.4547<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td style=\"text-align: center;\" width=\"134\"><a href=\"https:\/\/mfinox.com\/materiali\/14441-X6-CrNiTi-18-10-S32100\"><span style=\"color: #33cccc;\">1.4541<\/span><\/a><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14571-X6-CrNiMoTi-17-12-2-S31635\"><span style=\"color: #000080;\">1.4571<\/span><\/a><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/114410-x3-x2-crnimon25-7-4-alloy-2507-a182-f53-s32750-saf-2507\/\"><span style=\"color: #993300;\">1.4410<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td style=\"text-align: center;\" width=\"134\"><span style=\"color: #33cccc;\">1.4318<\/span><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14429-X6-CrNiMoTi-17-12-2-A240-S31653\"><span style=\"color: #000080;\">1.4429<\/span><\/a><\/td>\n<td><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14501-X2CrNiMoCuWN15-7-4-A182-F55-S32760-Zeron-100\"><span style=\"color: #993300;\">1.4501<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\" width=\"134\"><span style=\"color: #33cccc;\">1.4306<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #000080;\">1.4432<\/span><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/mfinox.com\/materiali\/14507-DIN-X2-CrNiMoCuN-25-6-3-A182-F61-S32550-Ferralium-255\"><span style=\"color: #993300;\">1.4507<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\" width=\"134\"><span style=\"color: #33cccc;\">1.4567<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #000080;\">1.4578<\/span><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #ff00ff;\">1.4482<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #ff00ff;\">1.4662<\/span><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #ff00ff;\">1.4362<\/span><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #ff00ff;\">1.4062<\/span><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><span style=\"color: #ff00ff;\">1.4162<\/span><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Famille de mat\u00e9riaux par couleur :<\/p>\n<table width=\"134\">\n<tbody>\n<tr>\n<td width=\"134\"><span style=\"color: #ff9900;\">Ferritici<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #33cccc;\">Aust\u00e9rit\u00e9s<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"134\"><span style=\"color: #33cccc;\"><span style=\"color: #ff00ff;\">Duplex maigre  <\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"134\"><span style=\"color: #000080;\">Super Austenitics<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #008080;\">Aust\u00e9nitique + Mo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"color: #800000;\">Duplex\/superduplex<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Classes de r\u00e9sistance \u00e0 la corrosion des aciers inoxydables La norme europ\u00e9enne EN 1993-1-4 d\u00e9finit les classes de r\u00e9sistance \u00e0 la corrosion des aciers inoxydables afin de garantir l&rsquo;int\u00e9grit\u00e9 structurelle dans diff\u00e9rents environnements. La norme classe les aciers inoxydables en diff\u00e9rentes cat\u00e9gories en fonction de leur r\u00e9sistance \u00e0 la corrosion atmosph\u00e9rique et aqueuse. Classe 1 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-6988","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Classes de r\u00e9sistance \u00e0 la corrosion (CRC) des aciers inoxydables - M.F. 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