{"id":6251,"date":"2020-07-24T07:30:16","date_gmt":"2020-07-24T07:30:16","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=6251"},"modified":"2026-05-20T06:13:32","modified_gmt":"2026-05-20T06:13:32","slug":"quest-ce-que-le-904l","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/what-is-904l\/","title":{"rendered":"Qu&#039;est-ce que le 904L\u00a0?"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Introduction de l&#039;acier inoxydable 904L<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.kaysuns.com\/fr\/blog\/tube-en-acier-inoxydable-904l\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tuyau en acier inoxydable 904L<\/a> is a low carbon high nickel, high <a href=\"https:\/\/www.kaysuns.com\/fr\/role-du-molybdene-dans-les-tubes-et-raccords-en-acier-inoxydable\/\" target=\"_blank\">molybd\u00e8ne<\/a> austenitic stainless steel pipe. Excellent corrosion resistance. It has good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, and phosphoric acid. It has good pitting corrosion resistance in neutral chloride-containing media and has good resistance Crevice corrosion and stress corrosion resistance.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"396\" height=\"377\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg\" alt=\"Inox 904L\" class=\"wp-image-6252\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg 396w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel-300x286.jpg 300w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Il convient \u00e0 diverses concentrations d&#039;acide sulfurique inf\u00e9rieures \u00e0 70\u00b0C et pr\u00e9sente une bonne r\u00e9sistance \u00e0 la corrosion dans l&#039;acide ac\u00e9tique \u00e0 n&#039;importe quelle concentration et \u00e0 n&#039;importe quelle temp\u00e9rature et acide mixte d&#039;acide formique et d&#039;acide ac\u00e9tique sous pression normale.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Notes<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Norme am\u00e9ricaine : UNS N08904<\/strong><\/li>\n\n\n\n<li><strong>Norme europ\u00e9enne : 1.4539<\/strong><\/li>\n\n\n\n<li><strong>Norme C\u00a0: 00Cr20Ni25Mo4.5Cu<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<table width=\"80%\" border=\"1\" align=\"center\" cellpadding=\"1\" cellspacing=\"1\">\n  <tr>\n    <td colspan=\"10\" align=\"center\"><h3 align=\"center\"><strong>Composition chimique du 904L<\/strong><\/h3><\/td>\n  <\/tr>\n  <tr>\n    <td align=\"center\"><p>S\u2264<\/p><\/td>\n    <td align=\"center\"><p>Si&lt;\u2264<\/p><\/td>\n    <td align=\"center\"><p>Mn\u2264<\/p><\/td>\n    <td align=\"center\"><p>P\u2264<\/p><\/td>\n    <td align=\"center\"><p>S\u2264 <\/p><\/td>\n    <td align=\"center\"><p>Cr\u2265<\/p><\/td>\n    <td align=\"center\"><p>Ni\u2265<\/p><\/td>\n    <td align=\"center\"><p>Mo\u2265 <\/p><\/td>\n    <td align=\"center\"><p>Cu\u2264<\/p><\/td>\n    <td align=\"center\"><p>Fe <\/p><\/td>\n  <\/tr>\n  <tr>\n    <td align=\"center\"><p>0. 02 <\/p><\/td>\n    <td align=\"center\"><p>1. 00 <\/p><\/td>\n    <td align=\"center\"><p>2. 00 <\/p><\/td>\n    <td align=\"center\"><p>0. 045 <\/p><\/td>\n    <td align=\"center\"><p>0. 035 <\/p><\/td>\n    <td align=\"center\"><p>19.00-23.00 <\/p><\/td>\n    <td align=\"center\"><p>23.00-23.00 <\/p><\/td>\n    <td align=\"center\"><p>4. 00-5. 00 <\/p><\/td>\n    <td align=\"center\"><p>1. 00-2. 00 <\/p><\/td>\n    <td align=\"center\"><p>le reste<\/p><\/td>\n  <\/tr>\n<\/table>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Performances de traitement de 904L<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">904L a une bonne maniabilit\u00e9 et soudabilit\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aptitude au travail : La temp\u00e9rature maximale de chauffage pendant le forgeage \u00e0 chaud peut atteindre 1180 degr\u00e9s Celsius, et la temp\u00e9rature minimale d'arr\u00eat du forgeage n'est pas inf\u00e9rieure \u00e0 900 degr\u00e9s Celsius. Le formage \u00e0 chaud de cet acier peut \u00eatre effectu\u00e9 \u00e0 1000-1150 degr\u00e9s Celsius. Le processus de traitement thermique de l'acier est de 1100-1150 degr\u00e9s Celsius, et il est rapidement refroidi apr\u00e8s le chauffage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Soudabilit\u00e9 : Bien que cet acier puisse \u00eatre soud\u00e9 par un proc\u00e9d\u00e9 de soudage g\u00e9n\u00e9ral, la m\u00e9thode de soudage la plus appropri\u00e9e est le soudage \u00e0 l&#039;arc manuel et le soudage \u00e0 l&#039;arc sous argon et tungst\u00e8ne. Lorsque le soudage \u00e0 l&#039;arc manuel est utilis\u00e9 pour souder des plaques ne d\u00e9passant pas 6 mm, le diam\u00e8tre de l&#039;\u00e9lectrode ne d\u00e9passe pas 2,5 mm; lorsque l&#039;\u00e9paisseur de la plaque est sup\u00e9rieure \u00e0 6 mm, le diam\u00e8tre de l&#039;\u00e9lectrode est inf\u00e9rieur \u00e0 3,2 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsqu&#039;un traitement thermique est requis apr\u00e8s le soudage, il peut \u00eatre chauff\u00e9 \u00e0 1075-1125 degr\u00e9s Celsius, puis rapidement refroidi pour le traitement. Lors de l&#039;utilisation du soudage \u00e0 l&#039;arc au tungst\u00e8ne et \u00e0 l&#039;argon, le m\u00e9tal d&#039;apport peut utiliser le m\u00eame mat\u00e9riau d&#039;\u00e9lectrode et la soudure doit \u00eatre d\u00e9cap\u00e9e et passiv\u00e9e apr\u00e8s le soudage.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Microstructure<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">904L est une structure compl\u00e8tement aust\u00e9nitique. Compar\u00e9 \u00e0 l&#039;acier inoxydable aust\u00e9nitique g\u00e9n\u00e9ral \u00e0 haute teneur en molybd\u00e8ne, le 904L n&#039;est pas sensible \u00e0 la pr\u00e9cipitation de ferrite et de phase .<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Propri\u00e9t\u00e9s physiques de l&#039;acier inoxydable 904L<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Densit\u00e9 : 8.24g\/cm3<\/li>\n\n\n\n<li>R\u00e9sistance \u00e0 la traction : \u2265520MPa<\/li>\n\n\n\n<li>Limite d&#039;\u00e9lasticit\u00e9 : \u2265216MPa<\/li>\n\n\n\n<li>Allongement : \u226535%<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>R\u00e9sistance \u00e0 la corrosion de l&#039;acier inoxydable 904L<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La teneur en carbone du 904L \u00e9tant tr\u00e8s faible (maximum 0,020%), il n'y aura pas de pr\u00e9cipitation de carbure en cas de traitement thermique g\u00e9n\u00e9ral et de soudage. Cela \u00e9limine le risque de <a href=\"https:\/\/www.kaysuns.com\/fr\/corrosion-intergranulaire-danger-cache\/\" target=\"_blank\">corrosion intergranulaire<\/a> qui se produit apr\u00e8s un traitement thermique g\u00e9n\u00e9ral et un soudage. En raison de sa teneur \u00e9lev\u00e9e en chrome, nickel et molybd\u00e8ne et de l'ajout de cuivre, le 904L peut \u00eatre passiv\u00e9 m\u00eame dans des environnements r\u00e9ducteurs tels que l'acide sulfurique et l'acide formique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La teneur \u00e9lev\u00e9e en nickel lui conf\u00e8re un taux de corrosion plus faible \u00e0 l&#039;\u00e9tat actif. Dans l&#039;acide sulfurique pur dans la plage de concentration de 0 ~ 98%, la temp\u00e9rature de fonctionnement de 904L peut atteindre 40 degr\u00e9s Celsius. La r\u00e9sistance \u00e0 la corrosion de l&#039;acide phosphorique pur dans la plage de concentration de 0-85% est tr\u00e8s bonne. Dans l&#039;acide phosphorique industriel produit par voie humide, les impuret\u00e9s ont une forte influence sur la r\u00e9sistance \u00e0 la corrosion. Parmi toutes sortes d&#039;acide phosphorique, 904L a une meilleure r\u00e9sistance \u00e0 la corrosion que l&#039;acier inoxydable ordinaire. Parmi les acides nitriques fortement oxydants, le 904L a une r\u00e9sistance \u00e0 la corrosion inf\u00e9rieure \u00e0 celle de l&#039;acier fortement alli\u00e9 sans molybd\u00e8ne. Dans l&#039;acide chlorhydrique, l&#039;utilisation du 904L est limit\u00e9e \u00e0 une concentration plus faible de 1-2%. Dans cette gamme de concentration. La r\u00e9sistance \u00e0 la corrosion du 904L est meilleure que celle de l&#039;acier inoxydable conventionnel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le 904L pr\u00e9sente une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la corrosion par piq\u00fbres. Sa r\u00e9sistance \u00e0 la corrosion caverneuse dans une solution de chlorure est \u00e9galement tr\u00e8s bonne. La teneur \u00e9lev\u00e9e en nickel du 904L r\u00e9duit la vitesse de corrosion au niveau des piq\u00fbres et des crevasses. L'acier inoxydable aust\u00e9nitique ordinaire peut \u00eatre sensible \u00e0 la corrosion sous contrainte dans un environnement riche en chlorure lorsque la temp\u00e9rature est sup\u00e9rieure \u00e0 60 degr\u00e9s Celsius. En augmentant la teneur en nickel de l'acier inoxydable, cette sensibilit\u00e9 peut \u00eatre r\u00e9duite. En raison de sa teneur \u00e9lev\u00e9e en nickel, l'acier 904L pr\u00e9sente une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la corrosion sous contrainte dans un environnement riche en chlorures. <a href=\"https:\/\/www.kaysuns.com\/fr\/fissuration-par-corrosion-sous-contrainte-dans-lacier-inoxydable\/\" target=\"_blank\">fissuration par corrosion sous contrainte<\/a> dans les solutions de chlorure, les solutions d'hydroxyde concentr\u00e9es et les environnements riches en sulfure d'hydrog\u00e8ne.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>904L peut \u00eatre appliqu\u00e9 dans de nombreux domaines industriels :<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u00c9quipements p\u00e9troliers et p\u00e9trochimiques, tels que les r\u00e9acteurs des \u00e9quipements p\u00e9trochimiques, etc.<\/li>\n\n\n\n<li>Mat\u00e9riel de stockage et de transport d&#039;acide sulfurique, etc.<\/li>\n\n\n\n<li>Dispositif de d\u00e9sulfuration des gaz de combustion des centrales \u00e9lectriques, les principales pi\u00e8ces d&#039;utilisation sont\u00a0: le corps de la tour d&#039;absorption, le conduit de fum\u00e9e, la plaque de porte, les pi\u00e8ces internes, le syst\u00e8me de pulv\u00e9risation, etc.<\/li>\n\n\n\n<li>L&#039;\u00e9purateur et le ventilateur dans le syst\u00e8me de traitement des acides organiques.<\/li>\n\n\n\n<li>Dispositif de traitement d&#039;eau de mer, \u00e9changeur de chaleur d&#039;eau de mer.<\/li>\n\n\n\n<li>\u00c9quipement de l&#039;industrie du papier<\/li>\n\n\n\n<li>Acide sulfurique, \u00e9quipement d&#039;acide nitrique, fabrication d&#039;acide, industrie pharmaceutique et autres \u00e9quipements chimiques, appareils \u00e0 pression.<\/li>\n\n\n\n<li>\u00c9quipements alimentaires, centrifugeuses, r\u00e9acteurs dans les usines pharmaceutiques, etc. R\u00e9servoir de sauce soja, vin de cuisson, r\u00e9servoir de sel et autres machines alimentaires.<\/li>\n\n\n\n<li>\u00c9quipements et pi\u00e8ces fortement corrosifs pour l&#039;acide sulfurique dilu\u00e9.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Publi\u00e9 par KAYSUNS, le <a href=\"https:\/\/www.kaysuns.com\/fr\/\" target=\"_blank\">fournisseur de tuyaux et raccords en acier inoxydable<\/a><\/p>","protected":false},"featured_media":6252,"template":"","categories":[186],"tags":[],"class_list":["post-6251","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is 904L? - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\n<meta name=\"description\" content=\"904L is a low carbon high nickel, high molybdenum austenitic stainless steel. chemical composition, processing performance, physical properties...\" \/>\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.kaysuns.com\/fr\/blog\/quest-ce-que-le-904l\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is 904L? - Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"og:description\" content=\"904L is a low carbon high nickel, high molybdenum austenitic stainless steel. chemical composition, processing performance, physical properties...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kaysuns.com\/fr\/blog\/quest-ce-que-le-904l\/\" \/>\n<meta property=\"og:site_name\" content=\"Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-20T06:13:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"396\" \/>\n\t<meta property=\"og:image:height\" content=\"377\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/\",\"url\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/\",\"name\":\"What Is 904L? - Stainless Steel Pipe and Fittings | KAYSUNS\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.kaysuns.com\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/904L-stainless-steel.jpg\",\"datePublished\":\"2020-07-24T07:30:16+00:00\",\"dateModified\":\"2026-05-20T06:13:32+00:00\",\"description\":\"904L is a low carbon high nickel, high molybdenum austenitic stainless steel. chemical composition, processing performance, physical properties...\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.kaysuns.com\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/904L-stainless-steel.jpg\",\"contentUrl\":\"https:\\\/\\\/www.kaysuns.com\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/904L-stainless-steel.jpg\",\"width\":396,\"height\":377,\"caption\":\"904L stainless steel\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/what-is-904l\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.kaysuns.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What Is 904L?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/#website\",\"url\":\"https:\\\/\\\/www.kaysuns.com\\\/\",\"name\":\"Stainless Steel Pipe and Fittings | KAYSUNS\",\"description\":\"Stainless Steel Pipe &amp; Fittings Manufacturer and Supplier in China\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/#organization\"},\"alternateName\":\"KAYSUNS\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.kaysuns.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/#organization\",\"name\":\"Kaysuns Industry Ltd.\",\"url\":\"https:\\\/\\\/www.kaysuns.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.kaysuns.com\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/cropped-neve-industrial-logo-1.png\",\"contentUrl\":\"https:\\\/\\\/www.kaysuns.com\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/cropped-neve-industrial-logo-1.png\",\"width\":52,\"height\":59,\"caption\":\"Kaysuns Industry Ltd.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.kaysuns.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Qu'est-ce que le 904L ? - Tubes et raccords en acier inoxydable | KAYSUNS","description":"Le 904L est un acier inoxydable aust\u00e9nitique \u00e0 faible teneur en carbone et \u00e0 haute teneur en nickel et en molybd\u00e8ne. composition chimique, performances de traitement, propri\u00e9t\u00e9s physiques...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.kaysuns.com\/fr\/blog\/quest-ce-que-le-904l\/","og_locale":"fr_FR","og_type":"article","og_title":"What Is 904L? - Stainless Steel Pipe and Fittings | KAYSUNS","og_description":"904L is a low carbon high nickel, high molybdenum austenitic stainless steel. chemical composition, processing performance, physical properties...","og_url":"https:\/\/www.kaysuns.com\/fr\/blog\/quest-ce-que-le-904l\/","og_site_name":"Stainless Steel Pipe and Fittings | KAYSUNS","article_modified_time":"2026-05-20T06:13:32+00:00","og_image":[{"width":396,"height":377,"url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/","url":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/","name":"Qu'est-ce que le 904L ? - Tubes et raccords en acier inoxydable | KAYSUNS","isPartOf":{"@id":"https:\/\/www.kaysuns.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/#primaryimage"},"image":{"@id":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg","datePublished":"2020-07-24T07:30:16+00:00","dateModified":"2026-05-20T06:13:32+00:00","description":"Le 904L est un acier inoxydable aust\u00e9nitique \u00e0 faible teneur en carbone et \u00e0 haute teneur en nickel et en molybd\u00e8ne. composition chimique, performances de traitement, propri\u00e9t\u00e9s physiques...","breadcrumb":{"@id":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.kaysuns.com\/blog\/what-is-904l\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/#primaryimage","url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg","contentUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/07\/904L-stainless-steel.jpg","width":396,"height":377,"caption":"904L stainless steel"},{"@type":"BreadcrumbList","@id":"https:\/\/www.kaysuns.com\/blog\/what-is-904l\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.kaysuns.com\/"},{"@type":"ListItem","position":2,"name":"What Is 904L?"}]},{"@type":"WebSite","@id":"https:\/\/www.kaysuns.com\/#website","url":"https:\/\/www.kaysuns.com\/","name":"Tubes et raccords en acier inoxydable | KAYSUNS","description":"Tubes et raccords en acier inoxydable Fabricant et Fournisseur en Chine","publisher":{"@id":"https:\/\/www.kaysuns.com\/#organization"},"alternateName":"KAYSUNS","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.kaysuns.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.kaysuns.com\/#organization","name":"Kaysuns Industry Ltd.","url":"https:\/\/www.kaysuns.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.kaysuns.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/12\/cropped-neve-industrial-logo-1.png","contentUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/12\/cropped-neve-industrial-logo-1.png","width":52,"height":59,"caption":"Kaysuns Industry Ltd."},"image":{"@id":"https:\/\/www.kaysuns.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/blog\/6251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/types\/blog"}],"version-history":[{"count":5,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/blog\/6251\/revisions"}],"predecessor-version":[{"id":59891,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/blog\/6251\/revisions\/59891"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/media\/6252"}],"wp:attachment":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/media?parent=6251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/categories?post=6251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/tags?post=6251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}