{"id":55890,"date":"2025-12-25T03:48:46","date_gmt":"2025-12-25T03:48:46","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=55890"},"modified":"2025-12-29T06:14:09","modified_gmt":"2025-12-29T06:14:09","slug":"problemes-courants-lies-a-lutilisation-du-super-duplex","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/fr\/problemes-courants-lies-a-lutilisation-du-super-duplex\/","title":{"rendered":"Probl\u00e8mes courants li\u00e9s \u00e0 l'utilisation du Super Duplex"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"55890\" class=\"elementor elementor-55890\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ce39dc e-flex e-con-boxed e-con e-parent\" data-id=\"5ce39dc\" 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-9c3d558 elementor-widget elementor-widget-text-editor\" data-id=\"9c3d558\" 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=\"4\" data-index-in-node=\"0\">Probl\u00e8mes li\u00e9s au Super Duplex<\/b> L'acier inoxydable super duplex (comme l'acier inoxydable \u00e0 haute teneur en soufre) est souvent utilis\u00e9 pour la fabrication et l'installation de syst\u00e8mes de tuyauterie \u00e0 haute performance. <a href=\"https:\/\/www.kaysuns.com\/fr\/2205-2507-duplex-pipe-supplier\/\" target=\"_blank\" rel=\"noopener\">Grade 2507<\/a>) offre une r\u00e9sistance incroyable, c'est un mat\u00e9riau sensible. Nous l'utilisons pour <a href=\"https:\/\/www.kaysuns.com\/fr\/tuyaux-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">tuyaux<\/a> et <a href=\"https:\/\/www.kaysuns.com\/fr\/raccords-de-tuyauterie-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">raccords de tuyauterie<\/a> Cependant, la complexit\u00e9 de sa structure biphas\u00e9e la rend sujette \u00e0 des d\u00e9faillances techniques sp\u00e9cifiques.<\/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-3f9c148 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3f9c148\" 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-0902344\" data-id=\"0902344\" 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-25c0222 elementor-widget elementor-widget-heading\" data-id=\"25c0222\" 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\">Le d\u00e9fi du d\u00e9s\u00e9quilibre de phase<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15baca7 elementor-widget elementor-widget-text-editor\" data-id=\"15baca7\" 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 le soudage, le m\u00e9tal subit des changements de temp\u00e9rature rapides.<br \/>Si la vitesse de refroidissement est trop lente, des phases interm\u00e9talliques fragiles telles que Sigma (<span class=\"math-inline\" data-math=\"\\sigma\" data-index-in-node=\"139\">\u03c3<\/span>) pr\u00e9cipitera. Cela rend les composants extr\u00eamement fragiles.<br \/>Inversement, si le refroidissement est trop rapide, le mat\u00e9riau devient trop ferritique. Ce d\u00e9s\u00e9quilibre r\u00e9duit la capacit\u00e9 du m\u00e9tal \u00e0 r\u00e9sister \u00e0 la fissuration sous contrainte due au sulfure.<br \/>Pour r\u00e9soudre ce probl\u00e8me, les soudeurs Kaysuns doivent contr\u00f4ler strictement l'apport de chaleur (0,5-1,5 kJ\/mm) et surveiller en permanence la temp\u00e9rature d'interpassage.<\/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-f8128e5 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f8128e5\" 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-ba6cf59\" data-id=\"ba6cf59\" 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-870ccb8 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"870ccb8\" 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-cf7ce7e elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"cf7ce7e\" 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-b8369be elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"b8369be\" 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-8dcba3f\" data-id=\"8dcba3f\" 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-9cbe135 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"9cbe135\" 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-8799a12 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"8799a12\" 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-7b36525 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b36525\" 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-a294189\" data-id=\"a294189\" 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-0b3401a elementor-widget elementor-widget-heading\" data-id=\"0b3401a\" 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\">Risques de corrosion li\u00e9s \u00e0 la contamination de surface<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49593bc elementor-widget elementor-widget-text-editor\" data-id=\"49593bc\" 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>M\u00eame si le Super Duplex est un alliage de haute qualit\u00e9 r\u00e9sistant \u00e0 la corrosion, les d\u00e9fauts de surface peuvent entra\u00eener une d\u00e9faillance rapide. <a href=\"https:\/\/www.kaysuns.com\/fr\/bride-en-acier-inoxydable\/\" target=\"_blank\" rel=\"noopener\">brides<\/a>.<\/p><ul><li data-path-to-node=\"10,0,0\"><b data-path-to-node=\"10,0,0\" data-index-in-node=\"0\">Contamination par le fer :<br \/><\/b>L'utilisation d'outils en acier au carbone laissera des particules de fer sur la surface, qui, avec le temps, rouilleront et endommageront la couche de passivation de la surface.<\/li><li data-path-to-node=\"10,1,0\"><b data-path-to-node=\"10,1,0\" data-index-in-node=\"0\">Oxydation de la racine de soudure :<br \/><\/b>En l'absence d'un gaz d'appoint appropri\u00e9 (g\u00e9n\u00e9ralement de l'argon 99,99%), la racine de la soudure se \u201csucre\u201d ou s'oxyde, et la zone oxyd\u00e9e devient un d\u00e9clencheur de la corrosion par piq\u00fbres.<\/li><li data-path-to-node=\"10,2,0\"><b data-path-to-node=\"10,2,0\" data-index-in-node=\"0\">Solution :<br \/><\/b>En outre, un traitement complet de d\u00e9capage et de passivation doit \u00eatre effectu\u00e9 apr\u00e8s le soudage pour restaurer la couche protectrice d'oxyde de chrome.<\/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-41e6828 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"41e6828\" 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-3608523\" data-id=\"3608523\" 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-20a0f2a elementor-widget elementor-widget-heading\" data-id=\"20a0f2a\" 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\">Risques li\u00e9s \u00e0 l'installation des brides et des vannes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f362e9c elementor-widget elementor-widget-text-editor\" data-id=\"f362e9c\" 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><li><strong>Saisie et grippage<\/strong>:<br \/>Les fixations en acier inoxydable super duplex sont tr\u00e8s susceptibles de se gripper (soudure \u00e0 froid) pendant le serrage. Si les filets sont gripp\u00e9s, la force de compression du joint requise ne peut pas \u00eatre obtenue.<\/li><li><strong>Couple de serrage incorrect<\/strong>:<br \/>En raison de la r\u00e9sistance \u00e9lev\u00e9e du mat\u00e9riau, les techniciens appliquent souvent un couple excessif pour \u00e9viter les fuites. Cette contrainte excessive peut entra\u00eener une rupture par fatigue du boulon et m\u00eame une d\u00e9formation de la face de la bride.<\/li><li><strong>Dommages \u00e0 la surface d'\u00e9tanch\u00e9it\u00e9<\/strong>:<br \/>Les vannes en acier super duplex sont g\u00e9n\u00e9ralement utilis\u00e9es pour le transport de fluides \u00e0 haute pression et tr\u00e8s abrasifs. Tout l\u00e9ger d\u00e9faut d'alignement lors de l'installation peut provoquer des rayures ou de la corrosion sur le si\u00e8ge du joint, ce qui entra\u00eene des fuites internes.<\/li><\/ol><p>Pour r\u00e9duire ces risques, toutes les fixations filet\u00e9es doivent \u00eatre trait\u00e9es avec un lubrifiant antigrippant de haute qualit\u00e9.<br \/>En outre, les installateurs doivent respecter une s\u00e9quence de serrage contr\u00f4l\u00e9e en plusieurs \u00e9tapes (telle que la m\u00e9thode en \u00e9toile) et utiliser des cl\u00e9s dynamom\u00e9triques calibr\u00e9es pour garantir une application uniforme de la force.<\/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-c6a5ac1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c6a5ac1\" 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-144822a\" data-id=\"144822a\" 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-62514f6 elementor-widget elementor-widget-heading\" data-id=\"62514f6\" 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\">Sensibilit\u00e9 \u00e0 la temp\u00e9rature et 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-817033e elementor-widget elementor-widget-text-editor\" data-id=\"817033e\" 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>En r\u00e8gle g\u00e9n\u00e9rale, la limite sup\u00e9rieure de s\u00e9curit\u00e9 pour une utilisation continue de l'acier inoxydable super duplex est de 250\u00b0C (482\u00b0F). La plage de temp\u00e9rature de fonctionnement de l'acier super duplex est nettement plus \u00e9troite que celle des aciers inoxydables aust\u00e9nitiques standard tels que le 316L.<\/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-faca9e3 elementor-widget elementor-widget-text-editor\" data-id=\"faca9e3\" 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>Une exposition prolong\u00e9e \u00e0 des temp\u00e9ratures comprises entre 300\u2103 et 500\u2103(572\u2109 et 932\u2109) entra\u00eene une d\u00e9gradation thermique s\u00e9v\u00e8re.Ce ph\u00e9nom\u00e8ne est souvent appel\u00e9 \u201cfragilisation \u00e0 475\u2103(887\u2109)\u201d.Il transforme un tuyau \u00e0 haute r\u00e9sistance en un composant fragile qui peut se briser sous la pression.Par cons\u00e9quent, dans des conditions de fonctionnement \u00e0 haute temp\u00e9rature, les mat\u00e9riaux super duplex sujets \u00e0 des probl\u00e8mes ne doivent jamais \u00eatre utilis\u00e9s.<\/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-e412383 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e412383\" 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-0c4e4ea\" data-id=\"0c4e4ea\" 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-565f757 elementor-widget elementor-widget-heading\" data-id=\"565f757\" 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 technique entre les mat\u00e9riaux super duplex et standard<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dfdb6af elementor-widget elementor-widget-text-editor\" data-id=\"dfdb6af\" 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>Super Duplex (2507 \/ 1.4410)<\/th>\n<th>Duplex standard (2205)<\/th>\n<th>Aust\u00e9nitique (316L)<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Limite d&#039;\u00e9lasticit\u00e9<\/td>\n<td>\u2265 550 MPa<\/td>\n<td>\u2265 450 MPa<\/td>\n<td>\u2265 170 Mpa<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\"><a href=\"https:\/\/www.kaysuns.com\/fr\/blog\/quest-ce-que-la-prenatalite\/\" target=\"_blank\" rel=\"noopener\">PREN<\/a> (Indice de corrosion)<\/td>\n<td>\u2265 40<\/td>\n<td>~ 35<\/td>\n<td>~ 24<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Difficult\u00e9 de fabrication<\/td>\n<td>Tr\u00e8s \u00e9lev\u00e9<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Faible<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Sensibilit\u00e9 au soudage<\/td>\n<td>Haut<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Faible<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Temp\u00e9rature maximale de service<\/td>\n<td>250 \u00b0C (482 \u00b0F)<\/td>\n<td>280 \u00b0C (536 \u00b0F)<\/td>\n<td>600 \u00b0C (1112 \u00b0F) +<\/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-0510903 e-flex e-con-boxed e-con e-parent\" data-id=\"0510903\" 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-3308eac 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=\"3308eac\" 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\/Common-Super-Duplex-Issues-During-Use-CTA-scaled.webp);\" role=\"img\" aria-label=\"Probl\u00e8mes courants li\u00e9s \u00e0 l&#039;utilisation du Super Duplex - 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-f7cfb0b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f7cfb0b\" 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-a9899a5\" data-id=\"a9899a5\" 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-80c89bb elementor-widget elementor-widget-heading\" data-id=\"80c89bb\" 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\">D\u00e9pannage des probl\u00e8mes courants li\u00e9s au Super Duplex<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12e2227 elementor-widget elementor-widget-text-editor\" data-id=\"12e2227\" 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>Probl\u00e8me observ\u00e9<\/th><th>Cause possible<\/th><th>Solution recommand\u00e9e<\/th><\/tr><tr><td bgcolor=\"#05B8E4\">Fissuration au niveau du pied de soudure<\/td><td>Contrainte r\u00e9siduelle \u00e9lev\u00e9e ou phase Sigma<\/td><td>Recuit de mise en solution et all\u00e8gement des contraintes<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Corrosion par piq\u00fbres rapide dans l'eau de mer<\/td><td>Faible PREN dans la soudure ou contamination<\/td><td>V\u00e9rifier le m\u00e9tal d'apport et passiver la surface<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Fracture soudaine et fragile<\/td><td>D\u00e9gradation thermique<\/td><td>Remplacer le composant ; temp\u00e9rature de service inf\u00e9rieure<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Fuite au niveau de la face de bride<\/td><td>Grippage ou couple de serrage incorrect des boulons<\/td><td>Utiliser des lubrifiants <a href=\"https:\/\/www.kaysuns.com\/fr\/quest-ce-que-lasme-pcc-1\/\" target=\"_blank\" rel=\"noopener\">ASME PCC-1<\/a> couple<\/td><\/tr><tr><td bgcolor=\"#05B8E4\">Saisie de filetage<\/td><td>Usure des mat\u00e9riaux<\/td><td>Utiliser un lubrifiant \u00e0 base de bisulfure de molybd\u00e8ne.<\/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-aeb7020 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"aeb7020\" 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-d9bee23\" data-id=\"d9bee23\" 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-e574b32 elementor-widget elementor-widget-heading\" data-id=\"e574b32\" 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\">\u00c9viter les concentrations de contraintes dans les raccords 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-4f5adce elementor-widget elementor-widget-text-editor\" data-id=\"4f5adce\" 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 contraintes m\u00e9caniques acc\u00e9l\u00e8rent les dommages chimiques.La fissuration par corrosion sous contrainte se concentre souvent dans les zones pr\u00e9sentant des changements g\u00e9om\u00e9triques brusques.C'est pourquoi les raccords de tuyauterie en acier inoxydable, tels que les coudes et les t\u00e9s, doivent pr\u00e9senter des transitions douces.<\/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-e232ca4 elementor-widget elementor-widget-text-editor\" data-id=\"e232ca4\" 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\tDe plus, un mauvais alignement des tuyaux exerce une tension consid\u00e9rable sur les brides. Lorsque cette contrainte m\u00e9canique est associ\u00e9e \u00e0 un fluide corrosif, le risque de rupture par fatigue augmente. Pour \u00e9viter cela, assurez-vous que le syst\u00e8me de tuyauterie est correctement soutenu. Utilisez des cl\u00e9s dynamom\u00e9triques calibr\u00e9es pour toutes les op\u00e9rations de boulonnage. Cela r\u00e9duit la \u201c contrainte moyenne \u201d exerc\u00e9e sur le mat\u00e9riau et prolonge la dur\u00e9e de vie de l'ensemble du syst\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<div class=\"elementor-element elementor-element-2cce3e7 e-flex e-con-boxed e-con e-parent\" data-id=\"2cce3e7\" 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-3d863db elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"3d863db\" 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<\/span>\n\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8db8ed3 e-flex e-con-boxed e-con e-parent\" data-id=\"8db8ed3\" 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-6f4a507 elementor-widget elementor-widget-text-editor\" data-id=\"6f4a507\" 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 gestion des probl\u00e8mes li\u00e9s \u00e0 l'acier super duplex n\u00e9cessite des solutions sp\u00e9cialis\u00e9es en boucle ferm\u00e9e.<br \/>Tout d'abord, s\u00e9lectionnez des mati\u00e8res premi\u00e8res de premi\u00e8re qualit\u00e9 1.4410.<br \/>Ensuite, l'\u00e9quipe de fabrication doit respecter strictement les proc\u00e9dures de soudage pour maintenir un \u00e9quilibre de phase 50\/50. Kaysuns a plus d'une d\u00e9cennie d'exp\u00e9rience dans ce domaine et se r\u00e9jouit de votre contact \u00e0 tout moment.<br \/>Enfin, les \u00e9quipes de maintenance doivent respecter les limites de temp\u00e9rature de l'alliage.<br \/>Relevez ces d\u00e9fis pratiques gr\u00e2ce \u00e0 des solutions expertes.<\/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-1b2ae53 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1b2ae53\" 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-4cb5ff7\" data-id=\"4cb5ff7\" 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-87493da elementor-widget elementor-widget-heading\" data-id=\"87493da\" 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-1b8a29a elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"1b8a29a\" 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-b9ea844 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=\"b9ea844\" 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-4d7d81d elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"4d7d81d\" 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-1d66dfd e-grid-align-left elementor-shape-square elementor-grid-0 elementor-widget elementor-widget-social-icons\" data-id=\"1d66dfd\" 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-d32c310\" data-id=\"d32c310\" 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-3376d9f elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"3376d9f\" 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=\"55890\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"3376d9f\"\/>\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=\"This file exceeds the maximum allowed size.\">\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>Les probl\u00e8mes courants li\u00e9s \u00e0 l'utilisation du super duplex sont les suivants : d\u00e9s\u00e9quilibre de phase pendant le soudage, contamination de la surface et non-respect des limites de temp\u00e9rature d'utilisation de l'alliage.<\/p>","protected":false},"author":1,"featured_media":55912,"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-55890","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>Super Duplex Issues During Use | Kaysuns<\/title>\n<meta name=\"description\" content=\"Common super duplex issues include:phase imbalance during welding,surface contamination and disregard for the temperature usage limits.\" \/>\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\/problemes-courants-lies-a-lutilisation-du-super-duplex\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Super Duplex Issues During Use | Kaysuns\" \/>\n<meta property=\"og:description\" content=\"Common super duplex issues include:phase imbalance during welding,surface contamination and disregard for the temperature usage limits.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kaysuns.com\/fr\/problemes-courants-lies-a-lutilisation-du-super-duplex\/\" \/>\n<meta property=\"og:site_name\" content=\"Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-25T03:48:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-29T06:14:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1777\" \/>\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\/common-super-duplex-issues-during-use\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.kaysuns.com\/#\/schema\/person\/9dd889bbe4a74acafea3a8d6480ae741\"},\"headline\":\"Common Super Duplex Issues During Use\",\"datePublished\":\"2025-12-25T03:48:46+00:00\",\"dateModified\":\"2025-12-29T06:14:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/\"},\"wordCount\":881,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.kaysuns.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp\",\"articleSection\":[\"Blogs\",\"Knowledge\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/\",\"url\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/\",\"name\":\"Super Duplex Issues During Use | Kaysuns\",\"isPartOf\":{\"@id\":\"https:\/\/www.kaysuns.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp\",\"datePublished\":\"2025-12-25T03:48:46+00:00\",\"dateModified\":\"2025-12-29T06:14:09+00:00\",\"description\":\"Common super duplex issues include:phase imbalance during welding,surface contamination and disregard for the temperature usage limits.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage\",\"url\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp\",\"contentUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp\",\"width\":2560,\"height\":1777,\"caption\":\"Common Super Duplex Issues During Use - Header\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#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\":\"Common Super Duplex Issues During Use\"}]},{\"@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=1778752451\",\"contentUrl\":\"https:\/\/www.kaysuns.com\/wp-content\/litespeed\/avatar\/121daf51eb7c2ccb4353fd41f53e3cbe.jpg?ver=1778752451\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/x.com\/Admin\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Probl\u00e8mes li\u00e9s \u00e0 l'utilisation du Super Duplex | Kaysuns","description":"Les probl\u00e8mes courants li\u00e9s au super duplex sont notamment les suivants : d\u00e9s\u00e9quilibre de phase pendant le soudage, contamination de surface et non-respect des limites de temp\u00e9rature d'utilisation.","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\/problemes-courants-lies-a-lutilisation-du-super-duplex\/","og_locale":"fr_FR","og_type":"article","og_title":"Super Duplex Issues During Use | Kaysuns","og_description":"Common super duplex issues include:phase imbalance during welding,surface contamination and disregard for the temperature usage limits.","og_url":"https:\/\/www.kaysuns.com\/fr\/problemes-courants-lies-a-lutilisation-du-super-duplex\/","og_site_name":"Stainless Steel Pipe and Fittings | KAYSUNS","article_published_time":"2025-12-25T03:48:46+00:00","article_modified_time":"2025-12-29T06:14:09+00:00","og_image":[{"width":2560,"height":1777,"url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.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\/common-super-duplex-issues-during-use\/#article","isPartOf":{"@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/"},"author":{"name":"admin","@id":"https:\/\/www.kaysuns.com\/#\/schema\/person\/9dd889bbe4a74acafea3a8d6480ae741"},"headline":"Common Super Duplex Issues During Use","datePublished":"2025-12-25T03:48:46+00:00","dateModified":"2025-12-29T06:14:09+00:00","mainEntityOfPage":{"@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/"},"wordCount":881,"commentCount":0,"publisher":{"@id":"https:\/\/www.kaysuns.com\/#organization"},"image":{"@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp","articleSection":["Blogs","Knowledge"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/","url":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/","name":"Probl\u00e8mes li\u00e9s \u00e0 l'utilisation du Super Duplex | Kaysuns","isPartOf":{"@id":"https:\/\/www.kaysuns.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage"},"image":{"@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp","datePublished":"2025-12-25T03:48:46+00:00","dateModified":"2025-12-29T06:14:09+00:00","description":"Les probl\u00e8mes courants li\u00e9s au super duplex sont notamment les suivants : d\u00e9s\u00e9quilibre de phase pendant le soudage, contamination de surface et non-respect des limites de temp\u00e9rature d'utilisation.","breadcrumb":{"@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#primaryimage","url":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp","contentUrl":"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/Common-Super-Duplex-Issues-During-Use-Header-scaled.webp","width":2560,"height":1777,"caption":"Common Super Duplex Issues During Use - Header"},{"@type":"BreadcrumbList","@id":"https:\/\/www.kaysuns.com\/common-super-duplex-issues-during-use\/#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":"Common Super Duplex Issues During Use"}]},{"@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=1778752451","contentUrl":"https:\/\/www.kaysuns.com\/wp-content\/litespeed\/avatar\/121daf51eb7c2ccb4353fd41f53e3cbe.jpg?ver=1778752451","caption":"admin"},"sameAs":["https:\/\/x.com\/Admin"]}]}},"_links":{"self":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts\/55890","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=55890"}],"version-history":[{"count":47,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts\/55890\/revisions"}],"predecessor-version":[{"id":56283,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/posts\/55890\/revisions\/56283"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/media\/55912"}],"wp:attachment":[{"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/media?parent=55890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/categories?post=55890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kaysuns.com\/fr\/wp-json\/wp\/v2\/tags?post=55890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}