{"id":55427,"date":"2025-12-23T07:18:39","date_gmt":"2025-12-23T07:18:39","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=55427"},"modified":"2026-01-13T01:22:32","modified_gmt":"2026-01-13T01:22:32","slug":"la-couche-passive-sur-lacier-inoxydable","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/fr\/la-couche-passive-sur-lacier-inoxydable\/","title":{"rendered":"Qu'est-ce que la couche passive sur l'acier inoxydable ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"55427\" class=\"elementor elementor-55427\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b7d8eb1 e-flex e-con-boxed e-con e-parent\" data-id=\"b7d8eb1\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-936b6f9 elementor-widget elementor-widget-text-editor\" data-id=\"936b6f9\" 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>Les <b data-path-to-node=\"1\" data-index-in-node=\"4\">couche passive<\/b> est un bouclier microscopique et auto-cicatrisant qui prot\u00e8ge l'acier inoxydable de la rouille et des d\u00e9gradations environnementales.Cette barri\u00e8re invisible est la principale raison pour laquelle l'acier inoxydable reste le choix privil\u00e9gi\u00e9 pour les infrastructures modernes.Sans cette caract\u00e9ristique essentielle, les syst\u00e8mes industriels succomberaient \u00e0 la corrosion en l'espace de quelques semaines.<br \/>Par cons\u00e9quent, comprendre la couche passive est essentiel pour toute personne travaillant avec <a href=\"https:\/\/www.kaysuns.com\/fr\/tuyaux-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">tuyaux en acier inoxydable<\/a>,<a href=\"https:\/\/www.kaysuns.com\/fr\/raccords-de-tuyauterie-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">raccords<\/a> ou <a href=\"https:\/\/www.kaysuns.com\/fr\/brides-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">brides haute pression<\/a>.<\/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\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5a8a8bc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5a8a8bc\" 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-a74d19c\" data-id=\"a74d19c\" 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-1b3d9bc elementor-widget elementor-widget-heading\" data-id=\"1b3d9bc\" 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\">Comment la couche passive se forme naturellement<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdc3488 elementor-widget elementor-widget-text-editor\" data-id=\"fdc3488\" 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'acier inoxydable contient au moins 10,5% de chrome.Lorsque ce chrome rencontre de l'oxyg\u00e8ne,une r\u00e9action chimique se produit instantan\u00e9ment.Cette r\u00e9action cr\u00e9e une fine pellicule d'oxyde de chrome \u00e0 la surface du m\u00e9tal.Les scientifiques appellent cette pellicule sp\u00e9cifique la couche passive.Elle est incroyablement fine - environ 100 000 fois plus fine qu'un cheveu humain.Malgr\u00e9 sa taille,elle reste tr\u00e8s stable et non poreuse.Cette densit\u00e9 emp\u00eache l'oxyg\u00e8ne et l'eau d'atteindre le fer sous-jacent,stoppant ainsi le processus de rouille avant m\u00eame qu'il ne commence.<\/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-678d14c elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"678d14c\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ee4dc1d\" data-id=\"ee4dc1d\" 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-16bf733 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"16bf733\" 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\">Ce que nous faisons<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5261415 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"5261415\" data-element_type=\"widget\" data-settings=\"{&quot;drop_cap&quot;:&quot;yes&quot;}\" 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>Plaque<\/li><li>Feuille<\/li><li>Forgeage<\/li><li>Barre ronde<\/li><\/ul>\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-ccddd11 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"ccddd11\" data-element_type=\"widget\" data-settings=\"{&quot;drop_cap&quot;:&quot;yes&quot;}\" 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>Bride<\/li><li>Tuyaux<\/li><li>Raccords<\/li><li>Sur mesure<\/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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-738fa1d\" data-id=\"738fa1d\" 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-16b33b5 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"16b33b5\" 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>Contactez-nous pour plus d'informations\u00a0<\/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-fd88213 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"fd88213\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjQ2ODEzIiwidG9nZ2xlIjpmYWxzZX0%3D\" target=\"_blank\" id=\"#241018\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Nous contacter<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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-e6a40f1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e6a40f1\" 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-ae7ba9b\" data-id=\"ae7ba9b\" 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-50c48a3 elementor-widget elementor-widget-heading\" data-id=\"50c48a3\" 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\">Pourquoi la couche passive est unique<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8eacace elementor-widget elementor-widget-text-editor\" data-id=\"8eacace\" 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>Contrairement \u00e0 la peinture ou \u00e0 la galvanoplastie, la couche passive fait partie int\u00e9grante du m\u00e9tal.Si vous rayez un tuyau peint, le m\u00e9tal expos\u00e9 rouillera.Toutefois, l'acier inoxydable se comporte diff\u00e9remment.Si une rayure m\u00e9canique endommage la surface, le chrome expos\u00e9 r\u00e9agit \u00e0 nouveau avec l'oxyg\u00e8ne.Ce processus reconstruit la protection en quelques millisecondes.Cette propri\u00e9t\u00e9 d'autor\u00e9paration rend les composants en acier inoxydable extr\u00eamement fiables dans les environnements \u00e0 frottement \u00e9lev\u00e9 ou \u00e0 haut d\u00e9bit.<\/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-9b63ffc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9b63ffc\" 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-3ab0dbf\" data-id=\"3ab0dbf\" 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-d1595ce elementor-widget elementor-widget-heading\" data-id=\"d1595ce\" 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\">Facteurs qui menacent la couche passive<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-393e95a elementor-widget elementor-widget-text-editor\" data-id=\"393e95a\" 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>Bien que la couche passive soit r\u00e9sistante, certaines conditions difficiles peuvent l'endommager.<\/p><ul><li>Attaque au chlorure :<br \/>De fortes concentrations de sel ou de chlore gazeux peuvent p\u00e9n\u00e9trer le film protecteur, provoquant une \u201ccorrosion par piq\u00fbres\u201d localis\u00e9e.\u201d<\/li><li>Environnements pauvres en oxyg\u00e8ne :<br \/>Dans les eaux stagnantes ou les crevasses confin\u00e9es, le film protecteur peut s'ab\u00eemer parce qu'il ne peut pas \u201crespirer\u201d.\u201d<\/li><li>Contamination de surface :<br \/>Les outils en acier au carbone laissent des particules de fer sur les surfaces en acier inoxydable. Lorsque ces particules rouillent, elles cr\u00e9ent des voies de corrosion qui contournent la couche de passivation.<\/li><li>Environnements \u00e0 haute temp\u00e9rature :<br \/>La chaleur extr\u00eame modifie l'\u00e9paisseur et la composition chimique du film d'oxyde, rendant parfois le m\u00e9tal plus sensible \u00e0 la corrosion chimique.<\/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<div class=\"elementor-element elementor-element-aa51f1a e-flex e-con-boxed e-con e-parent\" data-id=\"aa51f1a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ba53def elementor-cta--layout-image-left elementor-cta--mobile-layout-image-above elementor-cta--skin-classic elementor-animated-content elementor-widget elementor-widget-call-to-action\" data-id=\"ba53def\" data-element_type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<a class=\"elementor-cta\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjQ2ODEzIiwidG9nZ2xlIjpmYWxzZX0%3D\" target=\"_blank\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-CTA.webp);\" role=\"img\" aria-label=\"Qu&#039;est-ce que la couche passive sur l&#039;acier inoxydable - CTA\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tN'h\u00e9sitez pas \u00e0 nous contacter\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tKAYSUNS propose des solutions globales pour les mat\u00e9riaux de tuyauterie tels que les tuyaux, les raccords, les brides, les vannes, les plaques, les pi\u00e8ces forg\u00e9es, les lingots d'acier inoxydable, d'acier duplex et d'acier alli\u00e9, toutes sortes d'\u00e9l\u00e9ments de fixation (boulons, \u00e9crous, rondelles plates, rondelles bomb\u00e9es) et d'autres produits. Nous acceptons un service personnalis\u00e9 pour nos produits et certains d'entre eux peuvent \u00eatre fournis en petites quantit\u00e9s. Si vous avez des questions sur notre soci\u00e9t\u00e9 et nos produits, n'h\u00e9sitez pas \u00e0 nous contacter.\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-\">\n\t\t\t\t\t\tObtenir un devis\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c89b073 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c89b073\" 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-aee0503\" data-id=\"aee0503\" 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-320ea0a elementor-widget elementor-widget-heading\" data-id=\"320ea0a\" 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\">Normes industrielles pour la qualit\u00e9 des surfaces<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5127739 elementor-widget elementor-widget-text-editor\" data-id=\"5127739\" 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>Pour assurer une protection maximale, les industries suivent des normes strictes pour les finitions de surface. Plus la surface est lisse, plus la couche passive est uniforme.<\/p><table><tbody><tr bgcolor=\"#00a0e9\"><th>Type de finition de surface<\/th><th>Rugosit\u00e9 typique (R<sub>une<\/sub>)<\/th><th>Application dans la tuyauterie<\/th><th>Impact sur la passivit\u00e9<\/th><\/tr><tr><td bgcolor=\"#05B8E4\">Finition lamin\u00e9e (2B)<\/td><td>0,4 \u2013 0,8 \u03bcm<\/td><td>Tuyaux industriels standard<\/td><td>Bonne protection g\u00e9n\u00e9rale<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Bross\u00e9 (n\u00b0 4)<\/td><td>0,5 \u2013 1,5 \u03bcm<\/td><td>Accessoires externes<\/td><td>Esth\u00e9tique mais retient les d\u00e9bris<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Miroir (n\u00b0 8)<\/td><td>&lt; 0,1 \u03bcm<\/td><td>Lignes alimentaires et pharmaceutiques<\/td><td>Excellent ; r\u00e9siste \u00e0 la corrosion par piq\u00fbres<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">\u00c9lectropolissage<\/td><td>Ultra-lisse<\/td><td>Gaz\/eau de haute puret\u00e9<\/td><td>Sup\u00e9rieur ; \u00e9paissit l'oxyde<\/td><\/tr><\/tbody><\/table>\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-a95852c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a95852c\" 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-d848435\" data-id=\"d848435\" 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-5feaf85 elementor-widget elementor-widget-heading\" data-id=\"5feaf85\" 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\">Restauration de la protection : d\u00e9capage et passivation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97a1842 elementor-widget elementor-widget-text-editor\" data-id=\"97a1842\" 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>Pendant la fabrication, la chaleur g\u00e9n\u00e9r\u00e9e par le soudage cr\u00e9e des \u201c taches \u201d ou des \u00e9cailles. Cette zone tach\u00e9e par la chaleur pr\u00e9sente un taux de chrome r\u00e9duit. Par cons\u00e9quent, la couche passive \u00e0 cet endroit est faible. Pour r\u00e9soudre ce probl\u00e8me, nous pouvons utiliser les deux m\u00e9thodes suivantes.<\/p><ul><li>Marinade :<br \/>Ce proc\u00e9d\u00e9 utilise des acides puissants pour \u00e9liminer les couches de calamine et de chrome lamin\u00e9es \u00e0 chaud et redonner au m\u00e9tal son \u00e9tat sain d'origine.<\/li><li>Passivation :<br \/>Apr\u00e8s le d\u00e9capage, un acide plus faible (g\u00e9n\u00e9ralement de l'acide nitrique ou citrique) est appliqu\u00e9 pour acc\u00e9l\u00e9rer la croissance et l'\u00e9paississement du film d'oxyde de chrome, garantissant ainsi que les composants en acier inoxydable sont pr\u00eats \u00e0 \u00eatre utilis\u00e9s imm\u00e9diatement.<\/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-8055862 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8055862\" 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-92fda57\" data-id=\"92fda57\" 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-563f54c elementor-widget elementor-widget-heading\" data-id=\"563f54c\" 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\">Comparaison des \u00e9l\u00e9ments d'alliage et de leurs effets<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f9e4d3 elementor-widget elementor-widget-text-editor\" data-id=\"5f9e4d3\" 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\tLes diff\u00e9rentes nuances d'acier inoxydable offrent diff\u00e9rents niveaux de protection. La composition chimique de l'alliage d\u00e9termine la r\u00e9sistance de la couche passive.\n<table>\n<tbody>\n<tr bgcolor=\"#00a0e9\">\n<th>\u00c9l\u00e9ment<\/th>\n<th>Pourcentage<\/th>\n<th>R\u00f4le dans la couche passive<\/th>\n<th>Avantage pour la tuyauterie<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Chrome<\/td>\n<td>> 10.5%<\/td>\n<td>Le principal \u00e9l\u00e9ment constitutif<\/td>\n<td>Pr\u00e9vention de la corrosion du noyau<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Nickel<\/td>\n<td>8 \u2013 12%<\/td>\n<td>Stabilise la structure<\/td>\n<td>Augmente la flexibilit\u00e9 du film<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Molybd\u00e8ne<\/td>\n<td>2 \u2013 3%<\/td>\n<td>Renforce la couche<\/td>\n<td>R\u00e9siste \u00e0 l'attaque du chlorure\/sel<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Azote<\/td>\n<td>Petites quantit\u00e9s<\/td>\n<td>Augmente la densit\u00e9 du film<\/td>\n<td>Am\u00e9liore la r\u00e9sistance aux piq\u00fbres<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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-e5a14ba elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e5a14ba\" 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-e82bee5\" data-id=\"e82bee5\" 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-4810f28 elementor-widget elementor-widget-heading\" data-id=\"4810f28\" 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\">Maintenir la couche passive dans les syst\u00e8mes complexes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1775107 elementor-widget elementor-widget-text-editor\" data-id=\"1775107\" 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<ol>Un entretien r\u00e9gulier garantit la protection de votre syst\u00e8me de tuyauterie pendant toute sa dur\u00e9e de vie.<li>Vous devez garder les surfaces propres. En \u00e9liminant la salet\u00e9 et les d\u00e9p\u00f4ts de sel, vous permettez \u00e0 l'oxyg\u00e8ne d'atteindre le m\u00e9tal en permanence.<\/li><li>\u00c9vitez d'utiliser de la laine d'acier ou des brosses en acier au carbone pour le nettoyage. Ces outils contamineront la surface et provoqueront des \u201c taches de th\u00e9 \u201d.\u201d<\/li><li>Inspecter p\u00e9riodiquement les zones soumises \u00e0 de fortes contraintes, telles que les brides et les coudes. Ces composants subissent souvent le plus de turbulences, ce qui peut user la surface au fil du temps.<\/li><\/ol>\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-0ad1463 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0ad1463\" 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-a75dba8\" data-id=\"a75dba8\" 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-5676cff elementor-widget elementor-widget-heading\" data-id=\"5676cff\" 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-7242af0 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"7242af0\" 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-f655dda 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=\"f655dda\" 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 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-phone-square-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\">+86 577 8551 1171<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\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<a href=\"mailto:sales@kaysuns.com\" target=\"_blank\">\n\n\t\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-envelope-square\"><\/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\">sales@kaysuns.com<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\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<a href=\"https:\/\/www.kaysuns.com\/fr\/\" target=\"_blank\">\n\n\t\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-book-reader\"><\/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\">https:\/\/www.kaysuns.com\/<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\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-44dde38 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"44dde38\" 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\tTrouvez-nous\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-1b9dfb5 e-grid-align-left elementor-shape-square elementor-grid-0 elementor-widget elementor-widget-social-icons\" data-id=\"1b9dfb5\" data-element_type=\"widget\" data-widget_type=\"social-icons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-social-icons-wrapper elementor-grid\" role=\"list\">\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-facebook elementor-repeater-item-2f55736\" href=\"https:\/\/www.facebook.com\/kaysuns?mibextid=LQQJ4d\" target=\"_blank\" rel=\"nofollow\" >\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Facebook<\/span>\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fab fa-facebook\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-linkedin elementor-repeater-item-25db865\" href=\"https:\/\/www.linkedin.com\/company\/kaysuns\/\" target=\"_blank\" rel=\"nofollow\" >\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Linkedin<\/span>\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fab fa-linkedin\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-envelope elementor-repeater-item-bb1358c\" href=\"mailto:sales@kaysuns.com\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Enveloppe<\/span>\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-envelope\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-63701a7\" data-id=\"63701a7\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-65c27e3 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"65c27e3\" data-element_type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"Blog-Contact\" aria-label=\"Blog-Contact\" action=\"\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"55427\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"65c27e3\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-above\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tNom\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Nom\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tCourriel :\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Courriel :\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_e16bef1 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_e16bef1\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tVous pouvez \u00e9galement l'envoyer \u00e0 notre adresse \u00e9lectronique sales@kaysuns.com.\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_e16bef1][]\" id=\"form-field-field_e16bef1\" class=\"elementor-field elementor-size-sm  elementor-upload-field\" multiple=\"multiple\" data-maxsize=\"50\" data-maxsize-message=\"Esse arquivo excede o tamanho m\u00e1ximo permitido.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha_v3 elementor-field-group elementor-column elementor-field-group-field_1051df5 elementor-col-100 recaptcha_v3-bottomright\">\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_1051df5\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6LdwwZUbAAAAAK75C0Nw7twMoqOmGrEq3AAkFLOy\" data-type=\"v3\" data-action=\"Form\" data-badge=\"bottomright\" data-size=\"invisible\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Envoyer<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n\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<\/div>","protected":false},"excerpt":{"rendered":"<p>La couche passive est un bouclier microscopique auto-r\u00e9parateur qui prot\u00e8ge l'acier inoxydable contre la rouille et la d\u00e9gradation environnementale.<\/p>","protected":false},"author":1,"featured_media":55865,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_ti_tpc_template_sync":false,"_ti_tpc_template_id":"","footnotes":""},"categories":[316,186],"tags":[],"class_list":["post-55427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-stainless-steel-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is The Passive Layer on Stainless Steel? | Kaysuns<\/title>\n<meta name=\"description\" content=\"The passive layer is a microscopic,self-healing shield that protects stainless steel from rust and environmental decay.Click to know more.\" \/>\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\/la-couche-passive-sur-lacier-inoxydable\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is The Passive Layer on Stainless Steel? | Kaysuns\" \/>\n<meta property=\"og:description\" content=\"The passive layer is a microscopic,self-healing shield that protects stainless steel from rust and environmental decay.Click to know more.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kaysuns.com\/fr\/la-couche-passive-sur-lacier-inoxydable\/\" \/>\n<meta property=\"og:site_name\" content=\"Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-23T07:18:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-13T01:22:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1464\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Admin\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.kaysuns.com\/#\/schema\/person\/9dd889bbe4a74acafea3a8d6480ae741\"},\"headline\":\"What is The Passive Layer on Stainless Steel?\",\"datePublished\":\"2025-12-23T07:18:39+00:00\",\"dateModified\":\"2026-01-13T01:22:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/\"},\"wordCount\":781,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.kaysuns.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp\",\"articleSection\":[\"Blogs\",\"Knowledge\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/\",\"url\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/\",\"name\":\"What is The Passive Layer on Stainless Steel? | Kaysuns\",\"isPartOf\":{\"@id\":\"https:\/\/www.kaysuns.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp\",\"datePublished\":\"2025-12-23T07:18:39+00:00\",\"dateModified\":\"2026-01-13T01:22:32+00:00\",\"description\":\"The passive layer is a microscopic,self-healing shield that protects stainless steel from rust and environmental decay.Click to know more.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage\",\"url\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp\",\"contentUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp\",\"width\":2560,\"height\":1464,\"caption\":\"What is The Passive Layer on Stainless Steel - Header\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.kaysuns.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Knowledge\",\"item\":\"https:\/\/www.kaysuns.com\/category\/stainless-steel-knowledge\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"What is The Passive Layer on Stainless Steel?\"}]},{\"@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\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.kaysuns.com\/#\/schema\/person\/9dd889bbe4a74acafea3a8d6480ae741\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.kaysuns.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.kaysuns.com\/wp-content\/litespeed\/avatar\/121daf51eb7c2ccb4353fd41f53e3cbe.jpg?ver=1778147538\",\"contentUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/litespeed\/avatar\/121daf51eb7c2ccb4353fd41f53e3cbe.jpg?ver=1778147538\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/x.com\/Admin\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Qu'est-ce que la couche passive sur l'acier inoxydable ? | Kaysuns","description":"La couche passive est un bouclier microscopique auto-r\u00e9parateur qui prot\u00e8ge l'acier inoxydable contre la rouille et la d\u00e9t\u00e9rioration due \u00e0 l'environnement. Cliquez ici pour en savoir plus.","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\/la-couche-passive-sur-lacier-inoxydable\/","og_locale":"fr_FR","og_type":"article","og_title":"What is The Passive Layer on Stainless Steel? | Kaysuns","og_description":"The passive layer is a microscopic,self-healing shield that protects stainless steel from rust and environmental decay.Click to know more.","og_url":"https:\/\/www.kaysuns.com\/fr\/la-couche-passive-sur-lacier-inoxydable\/","og_site_name":"Stainless Steel Pipe and Fittings | KAYSUNS","article_published_time":"2025-12-23T07:18:39+00:00","article_modified_time":"2026-01-13T01:22:32+00:00","og_image":[{"width":2560,"height":1464,"url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp","type":"image\/webp"}],"author":"admin","twitter_card":"summary_large_image","twitter_creator":"@Admin","twitter_misc":{"\u00c9crit par":"admin","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#article","isPartOf":{"@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/"},"author":{"name":"admin","@id":"https:\/\/www.kaysuns.com\/#\/schema\/person\/9dd889bbe4a74acafea3a8d6480ae741"},"headline":"What is The Passive Layer on Stainless Steel?","datePublished":"2025-12-23T07:18:39+00:00","dateModified":"2026-01-13T01:22:32+00:00","mainEntityOfPage":{"@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/"},"wordCount":781,"commentCount":0,"publisher":{"@id":"https:\/\/www.kaysuns.com\/#organization"},"image":{"@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp","articleSection":["Blogs","Knowledge"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/","url":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/","name":"Qu'est-ce que la couche passive sur l'acier inoxydable ? | Kaysuns","isPartOf":{"@id":"https:\/\/www.kaysuns.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage"},"image":{"@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp","datePublished":"2025-12-23T07:18:39+00:00","dateModified":"2026-01-13T01:22:32+00:00","description":"La couche passive est un bouclier microscopique auto-r\u00e9parateur qui prot\u00e8ge l'acier inoxydable contre la rouille et la d\u00e9t\u00e9rioration due \u00e0 l'environnement. Cliquez ici pour en savoir plus.","breadcrumb":{"@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#primaryimage","url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp","contentUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/What-is-The-Passive-Layer-on-Stainless-Steel-Header.webp","width":2560,"height":1464,"caption":"What is The Passive Layer on Stainless Steel - Header"},{"@type":"BreadcrumbList","@id":"https:\/\/www.kaysuns.com\/the-passive-layer-on-stainless-steel\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.kaysuns.com\/"},{"@type":"ListItem","position":2,"name":"Knowledge","item":"https:\/\/www.kaysuns.com\/category\/stainless-steel-knowledge\/"},{"@type":"ListItem","position":3,"name":"What is The Passive Layer on Stainless Steel?"}]},{"@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\/"}},{"@type":"Person","@id":"https:\/\/www.kaysuns.com\/#\/schema\/person\/9dd889bbe4a74acafea3a8d6480ae741","name":"admin","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.kaysuns.com\/#\/schema\/person\/image\/","url":"https:\/\/www.kaysuns.com\/wp-content\/litespeed\/avatar\/121daf51eb7c2ccb4353fd41f53e3cbe.jpg?ver=1778147538","contentUrl":"https:\/\/www.kaysuns.com\/wp-content\/litespeed\/avatar\/121daf51eb7c2ccb4353fd41f53e3cbe.jpg?ver=1778147538","caption":"admin"},"sameAs":["https:\/\/x.com\/Admin"]}]}},"_links":{"self":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts\/55427","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/comments?post=55427"}],"version-history":[{"count":27,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts\/55427\/revisions"}],"predecessor-version":[{"id":56514,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts\/55427\/revisions\/56514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/media\/55865"}],"wp:attachment":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/media?parent=55427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/categories?post=55427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/tags?post=55427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}