{"id":54777,"date":"2025-12-08T06:29:04","date_gmt":"2025-12-08T06:29:04","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=54777"},"modified":"2026-01-13T01:21:46","modified_gmt":"2026-01-13T01:21:46","slug":"degradation-thermique-de-lacier-inoxydable","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/fr\/degradation-thermique-de-lacier-inoxydable\/","title":{"rendered":"D\u00e9gradation thermique de l'acier inoxydable"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"54777\" class=\"elementor elementor-54777\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c654510 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c654510\" 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-f8678d9\" data-id=\"f8678d9\" 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-87434e9 elementor-widget elementor-widget-text-editor\" data-id=\"87434e9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>D\u00e9gradation thermique<\/strong> L'acier inoxydable perd ses propri\u00e9t\u00e9s b\u00e9n\u00e9fiques \u00e0 la suite d'une exposition prolong\u00e9e \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es, ce qui constitue un risque important pour les syst\u00e8mes qui emploient des m\u00e9taux lourds. <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<\/a>. L'exposition prolong\u00e9e \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es modifie fondamentalement la structure interne du m\u00e9tal, ce qui entra\u00eene une diminution de la r\u00e9sistance m\u00e9canique et de la r\u00e9sistance \u00e0 la corrosion.<\/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-5c130ce elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5c130ce\" 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-4da8297\" data-id=\"4da8297\" 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-7713b4c elementor-widget elementor-widget-heading\" data-id=\"7713b4c\" 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\">Qu'est-ce que la d\u00e9gradation thermique ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-83f36d7 elementor-widget elementor-widget-text-editor\" data-id=\"83f36d7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La d\u00e9gradation thermique n'est PAS la m\u00eame chose que la fusion. Elle implique plut\u00f4t des changements m\u00e9tallurgiques lents au sein du m\u00e9tal solide. Ces changements se produisent principalement entre 400 \u00b0C et 900 \u00b0C (750 \u00b0F et 1650 \u00b0F). La temp\u00e9rature \u00e9lev\u00e9e provoque le d\u00e9placement et la pr\u00e9cipitation de certains \u00e9l\u00e9ments. Ce mouvement forme de nouvelles phases fragiles. Par cons\u00e9quent, le m\u00e9tal perd sa r\u00e9sistance et sa ductilit\u00e9 d'origine.<\/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-05ff323 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"05ff323\" 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-d01b4f8\" data-id=\"d01b4f8\" 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-f7a9464 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"f7a9464\" 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-ff75bbb elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"ff75bbb\" 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-a2b3975 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"a2b3975\" 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-5263341\" data-id=\"5263341\" 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-a64628a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a64628a\" 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-c700846 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"c700846\" 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-96cd87b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"96cd87b\" 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-87630d3\" data-id=\"87630d3\" 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-ec09dff elementor-widget elementor-widget-heading\" data-id=\"ec09dff\" 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\">M\u00e9canismes cl\u00e9s de la d\u00e9gradation thermique<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35b59eb elementor-widget elementor-widget-text-editor\" data-id=\"35b59eb\" 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>Plusieurs m\u00e9canismes distincts conduisent \u00e0 la perte d'int\u00e9grit\u00e9 des mat\u00e9riaux. Dans des conditions de fonctionnement \u00e0 haute temp\u00e9rature, ces processus se produisent souvent simultan\u00e9ment.<\/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-76ca5f5 elementor-widget elementor-widget-heading\" data-id=\"76ca5f5\" 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\">Formation de phase Sigma<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-282230d elementor-widget elementor-widget-text-editor\" data-id=\"282230d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La phase sigma(\u03c3) est un compos\u00e9 interm\u00e9tallique fragile riche en chrome et en molybd\u00e8ne. Cette phase se forme lentement dans les aciers inoxydables aust\u00e9nitiques et duplex. La phase \u03c3 se forme g\u00e9n\u00e9ralement dans une plage de temp\u00e9rature de 600\u00b0C \u00e0 900\u00b0C (1112\u00b0F \u00e0 1650\u00b0F). Sa formation r\u00e9duit consid\u00e9rablement la t\u00e9nacit\u00e9 du mat\u00e9riau et augmente le risque de fracture fragile due \u00e0 l'impact.<\/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-c92c592 elementor-widget elementor-widget-heading\" data-id=\"c92c592\" 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\">Fragilisation \u00e0 475 \u00b0C<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc66883 elementor-widget elementor-widget-text-editor\" data-id=\"fc66883\" 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>Ce ph\u00e9nom\u00e8ne touche principalement les aciers inoxydables ferritiques et duplex. Lorsque les mat\u00e9riaux sont expos\u00e9s pendant de longues p\u00e9riodes \u00e0 une temp\u00e9rature proche de 475 \u00b0C (885 \u00b0F), des atomes de chrome s'accumulent dans la matrice m\u00e9tallique. Cette accumulation augmente consid\u00e9rablement la duret\u00e9 du mat\u00e9riau, mais rend simultan\u00e9ment l'acier extr\u00eamement cassant \u00e0 temp\u00e9rature ambiante. Cette fragilit\u00e9 pr\u00e9sente des risques lors des op\u00e9rations de maintenance et d'inspection.<\/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-c272b1e elementor-widget elementor-widget-heading\" data-id=\"c272b1e\" 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\u00e9cipitation de carbure<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4efe93a elementor-widget elementor-widget-text-editor\" data-id=\"4efe93a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La pr\u00e9cipitation des carbures est commun\u00e9ment appel\u00e9e sensibilisation.Elle affecte principalement les aciers inoxydables aust\u00e9nitiques tels que le 304.Dans la plage de temp\u00e9rature de 450\u00b0C \u00e0 850\u00b0C,les carbures de chrome se forment le long des joints de grains.Ce processus \u00e9puise le chrome du m\u00e9tal environnant,ce qui fait que les r\u00e9gions appauvries en chrome perdent leur couche de passivation.Par cons\u00e9quent,l'acier devient tr\u00e8s sensible \u00e0 la corrosion intergranulaire.<\/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-fc50025 elementor-widget elementor-widget-text-editor\" data-id=\"fc50025\" 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>M\u00e9canisme<\/th>\n<th>Niveaux concern\u00e9s<\/th>\n<th>Plage de temp\u00e9rature<\/th>\n<th>Effet primaire<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">phase \u03c3<\/td>\n<td>Aust\u00e9nitique, duplex<\/td>\n<td>600 \u00b0C \u00e0 900 \u00b0C (1112 \u00b0F \u00e0 1650 \u00b0F)<\/td>\n<td>Fragilit\u00e9 s\u00e9v\u00e8re<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Fragilisation \u00e0 475 \u00b0C<\/td>\n<td>Ferritique, duplex<\/td>\n<td>\u2264 475 \u00b0C (885 \u00b0F)<\/td>\n<td>Augmentation de la duret\u00e9, perte de ductilit\u00e9<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Pr\u00e9cipitation de carbure<\/td>\n<td>Aust\u00e9nitique (304, 316)<\/td>\n<td>450 \u00b0C \u00e0 850 \u00b0C (840 \u00b0F \u00e0 1560 \u00b0F)<\/td>\n<td>Sensibilit\u00e9 \u00e0 la corrosion intergranulaire<\/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-9057988 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9057988\" 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-64ae9e3\" data-id=\"64ae9e3\" 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-8f98e49 elementor-cta--layout-image-right elementor-cta--mobile-layout-image-above elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"8f98e49\" 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\/Thermal-Degradation-of-Stainless-Steel-CTA.webp);\" role=\"img\" aria-label=\"D\u00e9gradation thermique de 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<\/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-d505906 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d505906\" 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-2698912\" data-id=\"2698912\" 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-1e9511d elementor-widget elementor-widget-heading\" data-id=\"1e9511d\" 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 la d\u00e9gradation thermique sur les syst\u00e8mes de tuyauterie<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea9135a elementor-widget elementor-widget-accordion\" data-id=\"ea9135a\" 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-2451\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-2451\" 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\">Perte de ductilit\u00e9<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2451\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-2451\"><p>La fragilisation induite par la phase \u03c3 limite la capacit\u00e9 de flexion du mat\u00e9riau, rendant l'acier inoxydable sujet \u00e0 la fissuration. Tout impact m\u00e9canique inattendu peut entra\u00eener une d\u00e9faillance imm\u00e9diate.<\/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-2452\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-2452\" 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\">Susceptibilit\u00e9 accrue \u00e0 la corrosion<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2452\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-2452\"><p>La sensibilisation induite par la pr\u00e9cipitation du carbure r\u00e9duit consid\u00e9rablement la r\u00e9sistance \u00e0 la corrosion. Les zones affect\u00e9es deviennent sensibles \u00e0 l'\u00e9rosion chimique, ce qui entra\u00eene une corrosion par piq\u00fbres pr\u00e9matur\u00e9e et une d\u00e9faillance des pipelines de traitement.<\/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-2453\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-2453\" 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\">Dur\u00e9e de vie r\u00e9duite<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2453\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-2453\"><p data-sourcepos=\"31:3-31:233\">La d\u00e9gradation thermique r\u00e9duit la dur\u00e9e de vie pr\u00e9vue des \u00e9quipements, ce qui n\u00e9cessite le remplacement pr\u00e9matur\u00e9 de composants et augmente consid\u00e9rablement les co\u00fbts de maintenance \u00e0 long terme.<\/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-2454\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-2454\" 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\">Pr\u00e9occupations en mati\u00e8re de s\u00e9curit\u00e9<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2454\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-2454\"><p>Les d\u00e9faillances des conduites \u00e0 haute pression ou \u00e0 haute temp\u00e9rature pr\u00e9sentent des risques pour la s\u00e9curit\u00e9. Le maintien de l'int\u00e9grit\u00e9 structurelle est essentiel pour garantir la s\u00e9curit\u00e9 de l'exploitation.<\/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-a62b9e3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a62b9e3\" 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-ed47dab\" data-id=\"ed47dab\" 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-6eaf4c4 elementor-widget elementor-widget-heading\" data-id=\"6eaf4c4\" 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\">S\u00e9lection des mat\u00e9riaux et att\u00e9nuation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe055ef elementor-widget elementor-widget-text-editor\" data-id=\"fe055ef\" 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><strong>Classes \u00e0 faible teneur en carbone<\/strong>:<br \/>Les qualit\u00e9s 304L et 316L sont recommand\u00e9es. La lettre \u201cL\u201d qui suit la qualit\u00e9 indique une faible teneur en carbone, ce qui minimise la pr\u00e9cipitation de carbure, r\u00e9duisant ainsi le risque de sensibilisation pendant le soudage ou le service \u00e0 haute temp\u00e9rature.<\/li><li><strong>Grades stabilis\u00e9s<\/strong>:<br \/>Les qualit\u00e9s telles que 321 et 347 contiennent des \u00e9l\u00e9ments stabilisateurs (titane ou niobium) qui forment de pr\u00e9f\u00e9rence des carbures, emp\u00eachant ainsi la formation de carbures de chrome nocifs.<\/li><li><strong>Contr\u00f4le de l'acier duplex<\/strong>:<br \/>Les aciers duplex n\u00e9cessitent un contr\u00f4le rigoureux de la fabrication afin de limiter la teneur en ferrite et de r\u00e9duire au minimum le risque de formation de phase \u03c3.<\/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-a90c225 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a90c225\" 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-e4ccf00\" data-id=\"e4ccf00\" 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-f3d8a37 elementor-widget elementor-widget-heading\" data-id=\"f3d8a37\" 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\">Strat\u00e9gies de pr\u00e9vention dans les tuyauteries \u00e0 haute temp\u00e9rature<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fdb5b8 elementor-widget elementor-widget-text-editor\" data-id=\"8fdb5b8\" 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><tbody><tr bgcolor=\"#00a0e9\"><th>Strat\u00e9gie<\/th><th>Type de composant<\/th><th>Mesure d'att\u00e9nuation<\/th><\/tr><tr><td bgcolor=\"#05B8E4\">Choix des mat\u00e9riaux<\/td><td>Tuyaux, raccords, brides<\/td><td>Utilisez des grades \u00e0 faible teneur en carbone (\u201c L \u201d) ou stabilis\u00e9s.<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Soudage<\/td><td>Assemblages soud\u00e9s<\/td><td>Utiliser des m\u00e9thodes de soudage sp\u00e9cialis\u00e9es \u00e0 faible apport thermique.<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Traitement thermique<\/td><td>Composants fabriqu\u00e9s<\/td><td>Recuit de mise en solution apr\u00e8s soudage pour redissoudre les carbures<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Conception<\/td><td>Structure du syst\u00e8me<\/td><td>\u00c9vitez les temps d'attente prolong\u00e9s dans les plages de temp\u00e9rature critiques.<\/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-28a3c28 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"28a3c28\" 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-083d62f\" data-id=\"083d62f\" 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-0e6e925 elementor-widget elementor-widget-heading\" data-id=\"0e6e925\" 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-b09f2d6 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"b09f2d6\" 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-8bf4a06 elementor-align-start elementor-widget__width-initial 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Les temp\u00e9ratures \u00e9lev\u00e9es font perdre \u00e0 l'acier inoxydable sa r\u00e9sistance et sa ductilit\u00e9.<\/p>","protected":false},"author":1,"featured_media":54941,"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-54777","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>Thermal Degradation of Stainless Steel - 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