{"id":55732,"date":"2025-12-19T08:13:57","date_gmt":"2025-12-19T08:13:57","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=55732"},"modified":"2026-01-13T01:22:15","modified_gmt":"2026-01-13T01:22:15","slug":"quest-ce-que-la-fissuration-sous-contrainte-par-le-sulfure","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/fr\/quest-ce-que-la-fissuration-sous-contrainte-par-le-sulfure\/","title":{"rendered":"Qu'est-ce que la fissuration sous contrainte par le sulfure et comment l'\u00e9viter ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"55732\" class=\"elementor elementor-55732\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c1a5744 e-flex e-con-boxed e-con e-parent\" data-id=\"c1a5744\" 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-a1f3979 elementor-widget elementor-widget-text-editor\" data-id=\"a1f3979\" 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 data-path-to-node=\"5\" data-index-in-node=\"0\">Fissuration sous contrainte par le sulfure<\/b> (SSC) repr\u00e9sente un m\u00e9canisme de d\u00e9faillance catastrophique pour les composants en acier inoxydable dans les environnements \u201cacides\u201d. Ces environnements contiennent du sulfure d'hydrog\u00e8ne (H<sub>2<\/sub>Ce ph\u00e9nom\u00e8ne est particuli\u00e8rement dangereux pour les infrastructures critiques, telles que les installations de production de p\u00e9trole et de gaz, qui sont souvent touch\u00e9es par la CSP. <a href=\"https:\/\/www.kaysuns.com\/fr\/tuyaux-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">tuyaux en acier inoxydable<\/a>, des soupapes, <a href=\"https:\/\/www.kaysuns.com\/fr\/raccords-de-tuyauterie-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">raccords<\/a> et des brides.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3219837 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3219837\" 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-8c5699a\" data-id=\"8c5699a\" 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-fb0e368 elementor-widget elementor-widget-heading\" data-id=\"fb0e368\" 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 fissuration sous contrainte par le sulfure ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b949cf9 elementor-widget elementor-widget-text-editor\" data-id=\"b949cf9\" 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\tLa SSC est une forme sp\u00e9cifique de fragilisation par l'hydrog\u00e8ne, qui se produit lorsque des aciers \u00e0 haute r\u00e9sistance ou des alliages inoxydables sp\u00e9cifiques sont soumis \u00e0 une contrainte de traction en pr\u00e9sence d'eau et de H<sub>2<\/sub>S.La r\u00e9action chimique entre le m\u00e9tal et H<sub>2<\/sub>S lib\u00e8re de l'hydrog\u00e8ne atomique.Cet hydrog\u00e8ne p\u00e9n\u00e8tre alors dans le r\u00e9seau m\u00e9tallique.\u00c0 l'int\u00e9rieur du m\u00e9tal,les atomes d'hydrog\u00e8ne s'accumulent aux joints de grains ou aux d\u00e9fauts.Cette pression interne r\u00e9duit la ductilit\u00e9 du m\u00e9tal.Par cons\u00e9quent,le mat\u00e9riau se fissure sous des contraintes qu'il supporterait normalement sans probl\u00e8me.\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-6ad97bf elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6ad97bf\" 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-427fb4a\" data-id=\"427fb4a\" 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-432c92d elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"432c92d\" 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-73a46ae elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"73a46ae\" 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-17b5b24 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"17b5b24\" 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-c0166b4\" data-id=\"c0166b4\" 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-009355a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"009355a\" 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-071d7b8 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"071d7b8\" 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-b8ec126 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b8ec126\" 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-202bce2\" data-id=\"202bce2\" 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-f5574ad elementor-widget elementor-widget-heading\" data-id=\"f5574ad\" 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 d\u00e9clenchant la fissuration sous contrainte par le sulfure<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e72feb elementor-widget elementor-widget-text-editor\" data-id=\"8e72feb\" 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>Trois conditions sp\u00e9cifiques doivent \u00eatre r\u00e9unies simultan\u00e9ment pour que la fissuration sous contrainte par sulfure se produise. Si vous supprimez l'une de ces trois conditions, vous \u00e9liminez le risque de fissuration.<\/p><ul><li data-path-to-node=\"10,0,0\"><b data-path-to-node=\"10,0,0\" data-index-in-node=\"0\">Mat\u00e9riau sensible :<br \/><\/b>Tous les m\u00e9taux ne sont pas sujets \u00e0 la CSP. Les mat\u00e9riaux \u00e0 duret\u00e9 \u00e9lev\u00e9e sont g\u00e9n\u00e9ralement beaucoup plus vuln\u00e9rables.<\/li><li data-path-to-node=\"10,1,0\"><b data-path-to-node=\"10,1,0\" data-index-in-node=\"0\">Contrainte de traction :<br \/><\/b>Cela comprend \u00e0 la fois la pression op\u00e9rationnelle appliqu\u00e9e et les contraintes r\u00e9siduelles dues au soudage ou au formage \u00e0 froid.<\/li><li data-path-to-node=\"10,2,0\"><b data-path-to-node=\"10,2,0\" data-index-in-node=\"0\">Environnement acide :<br \/><\/b>La pr\u00e9sence de H<sub>2<\/sub>S est le catalyseur d\u00e9terminant. Des facteurs tels qu'un faible pH (acidit\u00e9) et des temp\u00e9ratures sp\u00e9cifiques (g\u00e9n\u00e9ralement inf\u00e9rieures \u00e0 0,5 \u00b0C) sont des facteurs qui influencent la qualit\u00e9 de l'eau. <span class=\"math-inline\" data-math=\"80\u00b0C\" data-index-in-node=\"138\">80\u00b0C \/ 176 \u2109<\/span>) acc\u00e9l\u00e8rent les d\u00e9g\u00e2ts.<\/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-a21f338 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a21f338\" 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-0bbd708\" data-id=\"0bbd708\" 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-4db517c elementor-widget elementor-widget-heading\" data-id=\"4db517c\" 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\">Impact sur les composants de tuyauterie et les raccords<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d6afcb elementor-widget elementor-widget-text-editor\" data-id=\"1d6afcb\" 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>Dans un r\u00e9seau de tuyauterie complexe, certaines zones sont plus sujettes aux d\u00e9faillances.Les raccords de tuyauterie en acier inoxydable, tels que les coudes et les t\u00e9s, sont souvent soumis \u00e0 des turbulences et \u00e0 des concentrations de contraintes plus importantes.Les brides sont \u00e9galement expos\u00e9es \u00e0 des risques en raison de la charge de boulonnage \u00e9lev\u00e9e n\u00e9cessaire \u00e0 l'\u00e9tanch\u00e9it\u00e9.Si le mat\u00e9riau d\u00e9passe un certain seuil de duret\u00e9 (g\u00e9n\u00e9ralement 22 HRC), le risque de SSC augmente de mani\u00e8re exponentielle.<\/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-edba20a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"edba20a\" 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-72d1cc7\" data-id=\"72d1cc7\" 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-784d0fc elementor-widget elementor-widget-heading\" data-id=\"784d0fc\" 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 d'att\u00e9nuation : NACE MR0175\/ISO 15151<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b2fd84 elementor-widget elementor-widget-text-editor\" data-id=\"2b2fd84\" 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'industrie s'appuie sur la norme NACE MR0175\/ISO 15151 pour g\u00e9rer le Sulfide Stress Cracking. Cette norme fournit des directives strictes sur la s\u00e9lection des mat\u00e9riaux pour le service acide.<\/p><table><tbody><tr bgcolor=\"#00a0e9\"><th>Type de mat\u00e9riau<\/th><th>Grade typique<\/th><th>Niveau de r\u00e9sistance du CSS<\/th><th>Limite de duret\u00e9 (HRC)<\/th><\/tr><tr><td bgcolor=\"#05B8E4\">aust\u00e9nitique<\/td><td>316L<\/td><td>\u00c9lev\u00e9 (\u00e0 l'\u00e9tat recuit)<\/td><td>Pas de limitation explicite<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Duplex<\/td><td>2205<\/td><td>Tr\u00e8s \u00e9lev\u00e9<\/td><td>\u2264 28<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Super Duplex<\/td><td>2507<\/td><td>Excellent<\/td><td>\u2264 32<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Martensitique<\/td><td>410<\/td><td>Faible (tr\u00e8s sensible)<\/td><td>\u2264 22<\/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-3dfc180 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3dfc180\" 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-f10b0db\" data-id=\"f10b0db\" 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-d6d4303 elementor-widget elementor-widget-heading\" data-id=\"d6d4303\" 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 \u00e9viter efficacement la fissuration sous contrainte par le sulfure<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc0a87b elementor-widget elementor-widget-text-editor\" data-id=\"fc0a87b\" 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\tLa pr\u00e9vention de la CSP n\u00e9cessite une approche proactive au cours des phases de conception et de fabrication. Il n'est pas possible de simplement \u201cr\u00e9parer\u201d une fissure de CSP une fois qu'elle s'est d\u00e9clar\u00e9e.\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-5e6f2ce elementor-widget elementor-widget-heading\" data-id=\"5e6f2ce\" 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\">S\u00e9lection rigoureuse des mat\u00e9riaux<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbb0a6d elementor-widget elementor-widget-text-editor\" data-id=\"cbb0a6d\" 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 aciers inoxydables aust\u00e9nitiques comme le 316L offrent une bonne r\u00e9sistance lorsqu'ils sont correctement recuits. Pour les pressions plus \u00e9lev\u00e9es, les alliages Duplex et Super Duplex offrent la r\u00e9sistance et la stabilit\u00e9 chimique n\u00e9cessaires.<\/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-3ad4ff5 elementor-widget elementor-widget-heading\" data-id=\"3ad4ff5\" 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\">Contr\u00f4le des niveaux de duret\u00e9<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37ce118 elementor-widget elementor-widget-text-editor\" data-id=\"37ce118\" 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 duret\u00e9 est l'indicateur le plus fiable de la susceptibilit\u00e9 \u00e0 la corrosion sous tension.Veillez \u00e0 ce que tous les composants de la tuyauterie subissent un traitement thermique appropri\u00e9.Par exemple,le recuit de mise en solution restaure la microstructure et abaisse la duret\u00e9.Cela rend les tuyaux et les raccords beaucoup plus r\u00e9sistants \u00e0 la p\u00e9n\u00e9tration de l'hydrog\u00e8ne.<\/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-c654719 elementor-widget elementor-widget-heading\" data-id=\"c654719\" 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\">G\u00e9rer le stress r\u00e9siduel<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cdd6867 elementor-widget elementor-widget-text-editor\" data-id=\"cdd6867\" 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 soudage introduit des contraintes internes significatives. Effectuez toujours un traitement post-soudure lorsque la norme l'exige. En outre, \u00e9vitez de trop serrer les brides ou d'utiliser une force excessive lors de l'alignement des tuyaux.<\/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-4e53e28 elementor-widget elementor-widget-heading\" data-id=\"4e53e28\" 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\">Utiliser des inhibiteurs de corrosion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79bedff elementor-widget elementor-widget-text-editor\" data-id=\"79bedff\" 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\tDans certains cas, les inhibiteurs chimiques peuvent former un film protecteur sur la paroi interne du tuyau. Ce film emp\u00eache la r\u00e9action initiale entre le H<sub>2<\/sub>Toutefois, il s'agit g\u00e9n\u00e9ralement d'une d\u00e9fense secondaire par rapport \u00e0 la s\u00e9lection des mat\u00e9riaux.\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-34acb68 elementor-widget elementor-widget-text-editor\" data-id=\"34acb68\" 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>Strat\u00e9gie<\/th>\n<th>Efficacit\u00e9<\/th>\n<th>Co\u00fbt initial<\/th>\n<th>Besoin de maintenance<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Utilisation de grades \u00e0 faible teneur en carbone<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Faible<\/td>\n<td>Faible<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Contr\u00f4le de la duret\u00e9 (recuit)<\/td>\n<td>Haut<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Faible<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">S\u00e9lection de l'ARC super duplex<\/td>\n<td>Tr\u00e8s \u00e9lev\u00e9<\/td>\n<td>Haut<\/td>\n<td>Tr\u00e8s faible<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Inhibition chimique<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Faible<\/td>\n<td>\u00c9lev\u00e9 (en cours)<\/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<div class=\"elementor-element elementor-element-d57eff9 e-flex e-con-boxed e-con e-parent\" data-id=\"d57eff9\" 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-54ff5c5 elementor-widget elementor-widget-heading\" data-id=\"54ff5c5\" 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\">Relation entre la fissuration par corrosion sous contrainte et la fissuration sous contrainte par le sulfure<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ecedb2a elementor-widget elementor-widget-text-editor\" data-id=\"ecedb2a\" 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 fissuration sous contrainte par le sulfure est un sous-type unique de fissuration par corrosion sous contrainte.Alors que la fissuration sous contrainte standard implique souvent une dissolution anodique, la fissuration sous contrainte par le sulfure est due \u00e0 une charge cathodique d'hydrog\u00e8ne.En termes simples, l'hydrog\u00e8ne H<sub>2<\/sub>Le S agit comme un \u201cpoison\u201d qui emp\u00eache les atomes d'hydrog\u00e8ne de former des bulles de gaz \u00e0 l'ext\u00e9rieur du m\u00e9tal, ce qui oblige les atomes \u00e0 se d\u00e9placer \u00e0 l'int\u00e9rieur de la paroi du tuyau. Par cons\u00e9quent, si toutes les CSC sont une forme de fissuration sous contrainte, toutes les CSC n'impliquent pas la pr\u00e9sence mortelle de sulfures.<\/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-170d8a6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"170d8a6\" 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-3363e6e\" data-id=\"3363e6e\" 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-99f6cb7 elementor-widget elementor-widget-heading\" data-id=\"99f6cb7\" 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-fda15aa elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"fda15aa\" 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-db95af7 elementor-align-start elementor-widget__width-initial 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