{"id":18592,"date":"2021-12-20T13:41:45","date_gmt":"2021-12-20T13:41:45","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=18592"},"modified":"2025-12-10T06:09:06","modified_gmt":"2025-12-10T06:09:06","slug":"inox-904l","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/inox-904l\/","title":{"rendered":"Acier inoxydable 904L"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"18592\" class=\"elementor elementor-18592\" data-elementor-post-type=\"blog\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f06c8fc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f06c8fc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bca44cb\" data-id=\"bca44cb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe5d752 elementor-widget elementor-widget-image\" data-id=\"fe5d752\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"840\" height=\"370\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883.jpg\" class=\"attachment-full size-full wp-image-18595\" alt=\"Tuyau en acier inoxydable 904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883.jpg 840w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883-300x132.jpg 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883-768x338.jpg 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883-18x8.jpg 18w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3259347 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3259347\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0d5aed7\" data-id=\"0d5aed7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c4446bc elementor-widget elementor-widget-heading\" data-id=\"c4446bc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que l'acier inoxydable 904L ?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4b3d6df elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4b3d6df\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0379479\" data-id=\"0379479\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c4859fb elementor-widget elementor-widget-text-editor\" data-id=\"c4859fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L'alliage 904L est un acier inoxydable super aust\u00e9nitique con\u00e7u pour une vari\u00e9t\u00e9 de milieux n\u00e9cessitant une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la corrosion. Cet alliage contient une teneur \u00e9lev\u00e9e en chrome et en nickel, et avec <a href=\"https:\/\/www.kaysuns.com\/fr\/role-du-molybdene-dans-les-tubes-et-raccords-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">molybd\u00e8ne<\/a> et le cuivre comme composants suppl\u00e9mentaires, son excellente r\u00e9sistance \u00e0 la corrosion peut \u00eatre garantie.<br \/>Avec une teneur en nickel de 25% et en molybd\u00e8ne de 4,5%, l'alliage 904L est sup\u00e9rieur aux aciers inoxydables au molybd\u00e8ne 316L et 317L en ce qui concerne la r\u00e9sistance au chlorure. <a href=\"https:\/\/www.kaysuns.com\/fr\/fissuration-par-corrosion-sous-contrainte-dans-lacier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">fissuration par corrosion sous contrainte<\/a>les piq\u00fbres et la corrosion.<\/p><p>Initialement, l&#039;alliage 904L est d\u00e9velopp\u00e9 pour l&#039;application de la r\u00e9sistance \u00e0 la corrosion dans l&#039;acide sulfurique dilu\u00e9. Il se comporte \u00e9galement bien dans la r\u00e9sistance \u00e0 d&#039;autres acides inorganiques (tels que l&#039;acide phosphorique chaud) et \u00e0 la plupart des acides organiques.<br \/>En pratique, l'alliage 904L est facile \u00e0 souder et \u00e0 usiner en atelier.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f85fb76 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f85fb76\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2432c74\" data-id=\"2432c74\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-17ac74d elementor-widget elementor-widget-heading\" data-id=\"17ac74d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Norme de l'acier inoxydable 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d92094a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d92094a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d05ec0b\" data-id=\"d05ec0b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5e7fbec elementor-widget elementor-widget-text-editor\" data-id=\"5e7fbec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>FR Grade\u00a0: <\/strong>1.4539<strong>\u00a0<\/strong><\/p><p><strong><a href=\"\/fr\/quelle-est-la-signification-de-lastm\/\" target=\"_blank\" rel=\"noopener\">ASTM<\/a>\/ASME Grade :<br \/><\/strong>ASTM SA240 pour les plaques en acier inoxydable<br \/>ASTM SB625 pour plaques et feuilles en acier inoxydable<br \/>ASTM SB677\/SB674 N08904 pour tuyaux et tubes<br \/>ASTM SB366 WP904L pour raccords forg\u00e9s<br \/>ASTM SB459 N08904 pour forg\u00e9 et brides<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fd65ad5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fd65ad5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-61e3d24\" data-id=\"61e3d24\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-736659f elementor-widget elementor-widget-heading\" data-id=\"736659f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">R\u00e9sistance \u00e0 la corrosion de l&#039;acier inoxydable 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7af1378 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7af1378\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3d2da21\" data-id=\"3d2da21\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7d4302e elementor-widget elementor-widget-text-editor\" data-id=\"7d4302e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Avec une teneur \u00e9lev\u00e9e en alliage, l&#039;alliage 904L offre une excellente r\u00e9sistance \u00e0 la corrosion uniforme.<\/p><p>Initialement, l&#039;alliage 904L est d\u00e9velopp\u00e9 pour l&#039;application de la r\u00e9sistance \u00e0 la corrosion dans l&#039;acide sulfurique dilu\u00e9, et c&#039;est l&#039;un des rares aciers inoxydables qui peut maintenir une r\u00e9sistance totale \u00e0 la corrosion \u00e0 des temp\u00e9ratures allant jusqu&#039;\u00e0 95\u00b0F (35\u00b0C) sur toute la plage de concentration de 0 \u00e0 100%. En outre, 904L a \u00e9galement une excellente r\u00e9sistance \u00e0 la corrosion \u00e0 de nombreux acides inorganiques (par exemple, l&#039;acide phosphorique) et \u00e0 la plupart des acides organiques. Cependant, les solutions acides et acides contenant des ions halog\u00e8nes sont tr\u00e8s corrosives et la r\u00e9sistance \u00e0 la corrosion de 317L, 317LMN et 904L peut ne pas \u00eatre en mesure de se d\u00e9fendre.<\/p><p>Les huiles distill\u00e9es par friction n\u00e9cessitent g\u00e9n\u00e9ralement un mat\u00e9riau sup\u00e9rieur au 316L, et le 317Mn est souvent utilis\u00e9. Dans ces solutions alcalines concentr\u00e9es chaudes, la r\u00e9sistance \u00e0 la corrosion du mat\u00e9riau est principalement d\u00e9termin\u00e9e par sa teneur en nickel. Avec une teneur en nickel atteignant 25%, le 904L s&#039;av\u00e8re d\u00e9sormais \u00eatre une excellente alternative \u00e0 la plupart des aciers inoxydables conventionnels.<\/p><p>Pour les aciers inoxydables traditionnels tels que <a href=\"\/fr\/quest-ce-que-lacier-304l\/\" target=\"_blank\" rel=\"noopener\">304L<\/a> et <a href=\"\/fr\/quest-ce-que-lacier-316l\/\" target=\"_blank\" rel=\"noopener\">316L<\/a>En revanche, ils sont sensibles \u00e0 la corrosion fissurante sous contrainte par le chlorure dans certaines conditions. La tol\u00e9rance \u00e0 la corrosion fissurante sous contrainte du chlorure augmente avec la teneur en nickel et en molybd\u00e8ne. Par cons\u00e9quent, les aciers inoxydables super aust\u00e9nitiques tels que le 904L pr\u00e9sentent une plus grande r\u00e9sistance \u00e0 la fissuration par corrosion sous contrainte due au chlorure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e1eda93 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e1eda93\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-428dc3a\" data-id=\"428dc3a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d8dd1dc elementor-widget elementor-widget-heading\" data-id=\"d8dd1dc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Analyse chimique (%) de l'acier inoxydable 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48fe06f elementor-widget elementor-widget-image\" data-id=\"48fe06f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"715\" height=\"117\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel.png\" class=\"attachment-full size-full wp-image-18594\" alt=\"Analyse chimique de l&#039;acier inoxydable 904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel.png 715w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel-600x98.png 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel-300x49.png 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel-18x3.png 18w\" sizes=\"(max-width: 715px) 100vw, 715px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17e9a18 elementor-widget elementor-widget-image\" data-id=\"17e9a18\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"719\" height=\"171\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L.png\" class=\"attachment-full size-full wp-image-18598\" alt=\"Propri\u00e9t\u00e9 m\u00e9canique du SS904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L.png 719w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L-600x143.png 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L-300x71.png 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L-18x4.png 18w\" sizes=\"(max-width: 719px) 100vw, 719px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3717aef elementor-widget elementor-widget-image\" data-id=\"3717aef\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"502\" height=\"189\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material.png\" class=\"attachment-full size-full wp-image-18597\" alt=\"anti-corrosion du mat\u00e9riau 904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material.png 502w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material-300x113.png 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material-18x7.png 18w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-61d4fa3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"61d4fa3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-272a3d8\" data-id=\"272a3d8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-76d1bae elementor-widget elementor-widget-heading\" data-id=\"76d1bae\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Traitement du 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f1938a elementor-widget elementor-widget-heading\" data-id=\"7f1938a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Formage \u00e0 froid<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc6e052 elementor-widget elementor-widget-text-editor\" data-id=\"fc6e052\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>904L est facile \u00e0 allonger et \u00e0 fa\u00e7onner. Par rapport \u00e0 <a href=\"\/fr\/quest-ce-que-lacier-304\/\" target=\"_blank\" rel=\"noopener\">304<\/a> ou 304L, la teneur suppl\u00e9mentaire en molybd\u00e8ne et en azote signifie qu'il n\u00e9cessite un \u00e9quipement de traitement plus puissant.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a185c4 elementor-widget elementor-widget-heading\" data-id=\"9a185c4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Formage \u00e0 chaud<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-443d80c elementor-widget elementor-widget-text-editor\" data-id=\"443d80c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La temp\u00e9rature recommand\u00e9e pour le formage \u00e0 chaud se situe entre 850 et 1150\u00b0C (1562 et 2102\u00b0F). Normalement, les \u00e9tapes suivantes du formage \u00e0 chaud sont le recuit et le durcissement. Cependant, pour le 904L, s'il cesse de se former lorsque la temp\u00e9rature d\u00e9passe 1100\u00b0C (2012\u00b0F), le mat\u00e9riau doit \u00eatre tremp\u00e9 directement afin de pouvoir \u00eatre utilis\u00e9 sans traitement thermique ult\u00e9rieur. Plus important encore, la pi\u00e8ce enti\u00e8re peut \u00eatre tremp\u00e9e lorsque la temp\u00e9rature est sup\u00e9rieure \u00e0 1100\u00b0C (2012\u00b0F). Lorsque le chauffage ou le refroidissement local est inf\u00e9rieur \u00e0 1100\u00b0C (2012\u00b0F), et que le refroidissement est trop lent, le formage \u00e0 chaud doit suivre les op\u00e9rations ult\u00e9rieures de recuit et de trempe. Le 904L doit \u00eatre recuit entre 1940 et 2084\u00b0F (1060-1140\u00b0C).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-068826b elementor-widget elementor-widget-heading\" data-id=\"068826b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Traitement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4e337a elementor-widget elementor-widget-text-editor\" data-id=\"e4e337a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le taux de durcissement de la 904L lors du formage \u00e0 froid la rend moins usinable que les aciers inoxydables 410 et 304.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-649f2b1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"649f2b1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b143ec6\" data-id=\"b143ec6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5832342 elementor-widget elementor-widget-heading\" data-id=\"5832342\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Soudage de l'acier 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3eac383 elementor-widget elementor-widget-text-editor\" data-id=\"3eac383\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le 904L peut \u00eatre soud\u00e9 avec la plupart des \u00e9quipements standard. Le mat\u00e9riau de la plaque aust\u00e9nitique pr\u00e9sente une structure aust\u00e9nitique uniforme et une r\u00e9partition homog\u00e8ne des \u00e9l\u00e9ments d'alliage, ce qui peut entra\u00eener la redistribution de certains \u00e9l\u00e9ments tels que le molybd\u00e8ne, le chrome et le nickel apr\u00e8s soudage. La s\u00e9paration de ces \u00e9l\u00e9ments retenus dans le tissu de la pi\u00e8ce soud\u00e9e influera sur la r\u00e9sistance \u00e0 la corrosion dans certains environnements. Cependant, la s\u00e9paration des \u00e9l\u00e9ments est moins \u00e9vidente dans le 904L, et ce mat\u00e9riau est g\u00e9n\u00e9ralement soud\u00e9 avec un m\u00e9tal d'apport de m\u00eame composition que le m\u00e9tal de base, voire sans m\u00e9tal d'apport.<\/p><p>Le mat\u00e9riau de soudage pour 904L est une \u00e9lectrode 20 25 CuL et un fil 20 25 CuL.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a1d507c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1d507c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6aa449e\" data-id=\"6aa449e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c342acb elementor-widget elementor-widget-heading\" data-id=\"c342acb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le 904L est-il un acier super duplex ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f4c926 elementor-widget elementor-widget-text-editor\" data-id=\"0f4c926\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Comme vous pouvez le voir dans les \u00e9l\u00e9ments chimiques de la 904L ci-dessus, la 904L a une teneur tr\u00e8s \u00e9lev\u00e9e en nickel de 23-28% et en Cr de 19-23%. Ceci diff\u00e8re des aciers super duplex tels que <a href=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/07\/SUPER-DUPLEX-STEEL-2507.pdf\" target=\"_blank\">SAF 2507<\/a>qui ont une faible teneur en nickel et une forte teneur en chrome. Nous pensons que le 904L n'est pas un acier super duplex, mais un acier super inoxydable. Pour <a href=\"https:\/\/www.kaysuns.com\/fr\/tubes-en-acier-inoxydable\/\" target=\"_blank\">Tube en acier inoxydable 904L<\/a>Cela diff\u00e8re des aciers super duplex tels que le SAF2507, qui ont une faible teneur en nickel et une forte teneur en chrome. Nous pensons que le 904L n'est pas un acier super duplex, mais un acier super inoxydable. Pour le tube en acier inoxydable 904L, il appartient notamment \u00e0 la norme ASTM SB677.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-96d6f2c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"96d6f2c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c4591ab\" data-id=\"c4591ab\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-428b5fe elementor-widget elementor-widget-heading\" data-id=\"428b5fe\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Prix de l'acier inoxydable 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-08f0df9 elementor-widget elementor-widget-text-editor\" data-id=\"08f0df9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Nous voyons que le 904L a une teneur \u00e9lev\u00e9e en nickel et est un acier super inoxydable, qui est assez cher. Par rapport au 304 commun,<a href=\"https:\/\/www.kaysuns.com\/fr\/\" target=\"_blank\">Tubes et raccords en acier inoxydable 316L<\/a>Le 904L est deux fois plus cher, voire plus, que le 316L. Cependant, le 904L a une meilleure r\u00e9sistance \u00e0 la corrosion, donc dans certains cas, les clients choisiront quand m\u00eame le 904L plut\u00f4t que d'y renoncer \u00e0 cause de son prix.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6f2cabc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6f2cabc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-42cb284\" data-id=\"42cb284\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88f10a4 elementor-widget elementor-widget-heading\" data-id=\"88f10a4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Applications des tuyaux et raccords 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bc51a91 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bc51a91\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bc48e9e\" data-id=\"bc48e9e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8bd52bc elementor-widget elementor-widget-text-editor\" data-id=\"8bd52bc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Contr\u00f4le de la pollution de l&#039;air\u00a0: utilis\u00e9 dans les \u00e9purateurs des centrales \u00e9lectriques au charbon.<\/li><li>Traitement chimique\u00a0: utilis\u00e9 dans l&#039;\u00e9quipement pour produire de l&#039;acide sulfurique, de l&#039;acide phosphorique, des acides inorganiques et organiques et des engrais phosphat\u00e9s.<\/li><li>Traitement m\u00e9tallurgique\u00a0: utilis\u00e9 dans l&#039;\u00e9quipement de d\u00e9capage pour l&#039;acide sulfurique.<\/li><li>Production de p\u00e9trole et de gaz\u00a0: utilis\u00e9 dans les \u00e9quipements de traitement offshore.<\/li><li>Industrie pharmaceutique\u00a0: utilis\u00e9 dans les \u00e9quipements de traitement.<\/li><li>Fabrication de p\u00e2tes et papiers : Utilis\u00e9s dans les \u00e9quipements de traitement.<\/li><li>Eau de mer et eau saum\u00e2tre : utilis\u00e9es dans les condenseurs, <a href=\"https:\/\/www.kaysuns.com\/fr\/echangeur-de-chaleur-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">\u00e9changeurs de chaleur<\/a> et <a href=\"\/fr\/\" target=\"_blank\" rel=\"noopener\">syst\u00e8mes de tuyauterie<\/a>.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9349502 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9349502\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-29f30f6\" data-id=\"29f30f6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-81af2e7 elementor-widget elementor-widget-heading\" data-id=\"81af2e7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nous contacter<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be21aa2 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"be21aa2\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tPrendre contact\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad4fb12 elementor-align-start elementor-widget__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"ad4fb12\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-map-marker-alt\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">RM901 No.22 Tangjiaqiao Road Wenzhou Chine<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li 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