{"id":52561,"date":"2025-09-01T06:25:10","date_gmt":"2025-09-01T06:25:10","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=52561"},"modified":"2026-03-26T03:42:08","modified_gmt":"2026-03-26T03:42:08","slug":"quest-ce-que-la-sensibilisation-de-lacier-inoxydable-et-comment-leviter","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/fr\/quest-ce-que-la-sensibilisation-de-lacier-inoxydable-et-comment-leviter\/","title":{"rendered":"Qu'est-ce que la sensibilisation de l'acier inoxydable et comment la pr\u00e9venir ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"52561\" class=\"elementor elementor-52561\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a3bd12b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a3bd12b\" 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-4e7b1c1\" data-id=\"4e7b1c1\" 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-c0c3c10 elementor-widget elementor-widget-text-editor\" data-id=\"c0c3c10\" 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><b>Sensibilisation de l'acier inoxydable<\/b> est une question cruciale. Il s'agit d'un changement m\u00e9tallurgique. Elle peut gravement compromettre l'int\u00e9grit\u00e9 d'un mat\u00e9riau. Elle est \u00e9galement connue sous le nom de \"d\u00e9gradation de la soudure\". Cela se produit dans les cas suivants <a href=\"https:\/\/www.kaysuns.com\/fr\/tuyaux-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">tuyaux en acier inoxydable<\/a> et <a href=\"https:\/\/www.kaysuns.com\/fr\/raccords-de-tuyauterie-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">raccords de tuyauterie en acier inoxydable<\/a>. Il est essentiel de la comprendre. Elle permet d'\u00e9viter des \u00e9checs inattendus.<\/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-2cec237 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2cec237\" 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-ef7b604\" data-id=\"ef7b604\" 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-672f014 elementor-widget elementor-widget-heading\" data-id=\"672f014\" 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\">Sensibilisation de l'acier inoxydable : une menace cach\u00e9e<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42a7fb9 elementor-widget elementor-widget-text-editor\" data-id=\"42a7fb9\" 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 subit une sensibilisation lorsqu'il est chauff\u00e9.Ce ph\u00e9nom\u00e8ne se produit g\u00e9n\u00e9ralement entre 450\u2103 et 850\u2103(840\u2109 \u00e0 1560\u2109).Les temp\u00e9ratures \u00e9lev\u00e9es favorisent la formation de carbures de chrome,qui pr\u00e9cipitent le long des joints de grains,appauvrissant le chrome dans les r\u00e9gions adjacentes.Ces zones appauvries en chrome deviennent sensibles \u00e0 la corrosion,permettant \u00e0 la corrosion de se produire m\u00eame lorsque le reste du mat\u00e9riau reste intact.<\/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-b635326 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b635326\" 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-d153260\" data-id=\"d153260\" 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-ce17315 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"ce17315\" 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-75f8f0d elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"75f8f0d\" 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>Tuyaux &gt;<\/li><li>Raccords &gt;<\/li><li>Brides &gt;<\/li><li>Plus &gt;<\/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-761de79\" data-id=\"761de79\" 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-ee8c51d elementor-align-left elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"ee8c51d\" 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=\"https:\/\/www.kaysuns.com\/fr\/contacter-kaysuns\/\" 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\">Obtenir un devis maintenant<\/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-864281f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"864281f\" 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-c9a70fb\" data-id=\"c9a70fb\" 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-aa2b41c elementor-widget elementor-widget-heading\" data-id=\"aa2b41c\" 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 sensibilisation affecte-t-elle votre tuyauterie ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22571c8 elementor-widget elementor-widget-accordion\" data-id=\"22571c8\" data-element_type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-3601\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-3601\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Corrosion intergranulaire<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-3601\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-3601\"><p>Les zones sensibilis\u00e9es manquent de chrome. Elles perdent leur couche passive. Elles sont donc sujettes \u00e0 la corrosion intergranulaire. L'attaque se produit le long des joints de grains. Le mat\u00e9riau s'en trouve affaibli.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-3602\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-3602\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">R\u00e9sistance m\u00e9canique r\u00e9duite<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-3602\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-3602\"><p>Les joints de grains corrod\u00e9s deviennent des points faibles. Ils peuvent entra\u00eener des fissures et des fractures. Cela est particuli\u00e8rement vrai sous contrainte. Cela compromet l'int\u00e9grit\u00e9 de la conduite.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-3603\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-3603\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">\u00c9checs inattendus<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-3603\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-3603\"><p>La sensibilisation est difficile \u00e0 voir. La surface semble normale. Les d\u00e9faillances peuvent survenir soudainement. Il en r\u00e9sulte des fuites. Elles entra\u00eenent des arr\u00eats dangereux du syst\u00e8me.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-3604\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-3604\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Joints de soudure compromis<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-3604\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-3604\"><p>La cause la plus fr\u00e9quente est le soudage. La zone affect\u00e9e thermiquement (ZAT) est sensibilis\u00e9e. C'est le point le plus faible de tout le syst\u00e8me.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a694eb3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a694eb3\" 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-27046b4\" data-id=\"27046b4\" 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-6600fbc elementor-widget elementor-widget-heading\" data-id=\"6600fbc\" 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\">Effets de sensibilisation sur les tuyaux et raccords en acier inoxydable<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f8133b elementor-widget elementor-widget-text-editor\" data-id=\"9f8133b\" 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<table>\n<tbody>\n<tr bgcolor=\"#00a0e9\">\n<th>Biens<\/th>\n<th>Avant la sensibilisation<\/th>\n<th>Apr\u00e8s sensibilisation<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">R\u00e9sistance \u00e0 la corrosion<\/td>\n<td>Excellent<\/td>\n<td>Pauvre (dans la zone sensibilis\u00e9e)<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Microstructure<\/td>\n<td>Uniforme, propre<\/td>\n<td>Carbures aux joints de grains<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Int\u00e9grit\u00e9 m\u00e9canique<\/td>\n<td>Haut<\/td>\n<td>Compromis<\/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-76d9322 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"76d9322\" 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-3214c70\" data-id=\"3214c70\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"dce-visibility-event elementor-section elementor-inner-section elementor-element elementor-element-3dd24ab elementor-hidden-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3dd24ab\" data-element_type=\"section\" data-settings=\"{&quot;enabled_visibility&quot;:&quot;yes&quot;,&quot;dce_visibility_selected&quot;:&quot;yes&quot;}\">\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-33 elementor-inner-column elementor-element elementor-element-c119019\" data-id=\"c119019\" 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-e05ba03 elementor-widget elementor-widget-image\" data-id=\"e05ba03\" 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=\"768\" height=\"768\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-768x768.webp\" class=\"attachment-medium_large size-medium_large wp-image-52641\" alt=\"Qu&#039;est-ce que la sensibilisation de l&#039;acier inoxydable et comment la pr\u00e9venir - CTA1\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-768x768.webp 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-300x300.webp 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-1024x1024.webp 1024w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-150x150.webp 150w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-1536x1536.webp 1536w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231-12x12.webp 12w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA1-e1756709952231.webp 1812w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-427e14c\" data-id=\"427e14c\" 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-ebd7289 elementor-widget elementor-widget-image\" data-id=\"ebd7289\" 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=\"768\" height=\"768\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407-768x768.webp\" class=\"attachment-medium_large size-medium_large wp-image-52642\" alt=\"Qu&#039;est-ce que la sensibilisation de l&#039;acier inoxydable et comment la pr\u00e9venir - CTA2\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407-768x768.webp 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407-300x300.webp 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407-1024x1024.webp 1024w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407-150x150.webp 150w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407-12x12.webp 12w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA2-e1756709977407.webp 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-5c951fd\" data-id=\"5c951fd\" 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-961787a elementor-widget elementor-widget-image\" data-id=\"961787a\" 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=\"768\" height=\"768\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709-768x768.webp\" class=\"attachment-medium_large size-medium_large wp-image-52643\" alt=\"Qu&#039;est-ce que la sensibilisation de l&#039;acier inoxydable et comment la pr\u00e9venir - CTA3\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709-768x768.webp 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709-300x300.webp 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709-1024x1024.webp 1024w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709-150x150.webp 150w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709-12x12.webp 12w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/09\/What-is-Sensitization-of-Stainless-Steel-and-How-to-Prevent-it-CTA3-e1756710001709.webp 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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<div class=\"elementor-element elementor-element-4c6d8bc elementor-cta--layout-image-right elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"4c6d8bc\" 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\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\tObtenir un devis rapide et gratuit\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<\/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-53e4da3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"53e4da3\" 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-101abd3\" data-id=\"101abd3\" 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-c5c5670 elementor-widget elementor-widget-heading\" data-id=\"c5c5670\" 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 pr\u00e9venir la sensibilisation de l'acier inoxydable ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d8b6bc elementor-widget elementor-widget-heading\" data-id=\"1d8b6bc\" 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\">Comment pr\u00e9venir la sensibilisation de l'acier inoxydable ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2706dbe elementor-widget elementor-widget-text-editor\" data-id=\"2706dbe\" 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 moyen le plus simple de pr\u00e9venir la sensibilisation est de <strong>Choisir le bon mat\u00e9riau<\/strong>.<\/p><table><tbody><tr bgcolor=\"#00a0e9\"><th>M\u00e9thode<\/th><th>Explication<\/th><th>Exemples de notes<\/th><\/tr><tr><td bgcolor=\"#05B8E4\">Classes \u00e0 faible teneur en carbone<\/td><td>R\u00e9duit le carbone disponible pour les carbures<\/td><td>304L, 316L<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Grades stabilis\u00e9s<\/td><td>Contient du titane ou du niobium<\/td><td>321, 347, 316Ti<\/td><\/tr><\/tbody><\/table><ul><li>La faible teneur en carbone du 304L supprime la sensibilisation pendant le soudage, ce qui en fait un choix id\u00e9al pour les composants soud\u00e9s.<\/li><li>316Ti stabilise la composition de l'alliage avec du titane, emp\u00eachant efficacement la d\u00e9gradation des soudures, ce qui en fait le meilleur choix pour les environnements \u00e0 haute temp\u00e9rature.<\/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-9f53b64 elementor-widget elementor-widget-heading\" data-id=\"9f53b64\" 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\">Pr\u00e9vention de la sensibilisation : fabrication et traitement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-709f6f5 elementor-widget elementor-widget-text-editor\" data-id=\"709f6f5\" 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>Recuit de mise en solution : Il s'agit d'un traitement thermique. Il chauffe l'acier \u00e0 une temp\u00e9rature \u00e9lev\u00e9e. Il le refroidit ensuite rapidement. Les carbures de chrome sont ainsi dissous. La couche passive est ainsi r\u00e9tablie.<\/li><li>Soudage contr\u00f4l\u00e9 : Utiliser des m\u00e9thodes de soudage \u00e0 faible apport de chaleur. Cela r\u00e9duit le temps que le mat\u00e9riau passe dans la plage de temp\u00e9rature de sensibilisation.<\/li><li>Nettoyage apr\u00e8s soudage : Nettoyez soigneusement la zone de soudure. Enlever tous les <a href=\"https:\/\/www.kaysuns.com\/fr\/blog\/la-teinte-thermique-sur-lacier-inoxydable-est-elle-un-defaut-de-soudure\/\" target=\"_blank\" rel=\"noopener\">teinte thermique<\/a> et les oxydes. Il faut ensuite proc\u00e9der \u00e0 la passivation de la surface. La couche protectrice est ainsi r\u00e9tablie.<\/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-3bf59b1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3bf59b1\" 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-1e11e1d\" data-id=\"1e11e1d\" 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-51c07ae elementor-widget elementor-widget-heading\" data-id=\"51c07ae\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div 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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>L'acier inoxydable subit une sensibilisation lorsqu'il est chauff\u00e9.Ce ph\u00e9nom\u00e8ne se produit g\u00e9n\u00e9ralement entre 450\u2103 et 850\u2103(840\u2109 \u00e0 1560\u2109).Les temp\u00e9ratures \u00e9lev\u00e9es favorisent la formation de carbures de chrome,qui pr\u00e9cipitent le long des joints de grains,appauvrissant le chrome dans les r\u00e9gions adjacentes.Ces zones appauvries en chrome deviennent sensibles \u00e0 la corrosion,permettant \u00e0 la corrosion de se produire m\u00eame lorsque le reste du mat\u00e9riau reste intact.<\/p>","protected":false},"author":1,"featured_media":52644,"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-52561","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 Sensitization 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