{"id":5151,"date":"2019-08-05T07:55:31","date_gmt":"2019-08-05T07:55:31","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=5151"},"modified":"2022-06-30T09:03:45","modified_gmt":"2022-06-30T09:03:45","slug":"effet-de-lazote-du-manganese-de-lazote-du-chrome-sur-les-raccords-de-tuyauterie-soudes","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/effet-de-lazote-du-manganese-de-lazote-du-chrome-sur-les-raccords-de-tuyauterie-soudes\/","title":{"rendered":"Effet de l&#039;azote, du mangan\u00e8se, de l&#039;azote-chrome sur les raccords de tuyauterie soud\u00e9s"},"content":{"rendered":"<h2>Effet de l&#039;azote, du mangan\u00e8se, de l&#039;azote-chrome sur les raccords de tuyauterie soud\u00e9s<\/h2>\n<p>L&#039;azote agit comme durcisseur dans <a href=\"\/fr\/raccords-a-souder-bout-a-bout\/\" target=\"_blank\">raccord de tuyau soud\u00e9 bout \u00e0 bout<\/a>s. Les propri\u00e9t\u00e9s m\u00e9caniques (limite d&#039;\u00e9lasticit\u00e9) des aciers pour tubes soud\u00e9s bout \u00e0 bout avec des teneurs plus \u00e9lev\u00e9es en mangan\u00e8se, azote et chrome sont \u00e9galement relativement plus \u00e9lev\u00e9es, parfois que la duret\u00e9 de l&#039;acier au chrome-nickel 304. La force est 30% plus \u00e9lev\u00e9e. Cependant, ces pi\u00e8ces de tuyaux soud\u00e9es bout \u00e0 bout en acier \u00e0 haute teneur en azote sont difficiles \u00e0 former, ce qui augmente le co\u00fbt de traitement.<\/p>\n<figure id=\"attachment_2598\" aria-describedby=\"caption-attachment-2598\" style=\"width: 400px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2015\/11\/Img56206.jpg\" target=\"_blank\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-2598\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2015\/11\/Img56206.jpg\" alt=\"T-shirts soud\u00e9s bout \u00e0 bout\" width=\"400\" height=\"300\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2015\/11\/Img56206.jpg 400w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2015\/11\/Img56206-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><figcaption id=\"caption-attachment-2598\" class=\"wp-caption-text\">T\u00e9s soud\u00e9s bout \u00e0 bout en acier inoxydable<\/figcaption><\/figure>\n<p>Les nuances d&#039;acier plus douces peuvent \u00eatre facilement \u00ab embouties \u00bb, avec moins de consommation d&#039;\u00e9nergie dans le traitement, et d&#039;autre part, l&#039;\u00e9quipement de traitement qui a \u00e9t\u00e9 con\u00e7u \u00e0 l&#039;origine pour traiter la s\u00e9rie 300 extensible de nuances d&#039;acier.<\/p>\n<p>Cette nuance d&#039;acier plus douce peut \u00eatre obtenue simplement en r\u00e9duisant l&#039;azote, ce qui r\u00e9duit in\u00e9vitablement le chrome. L&#039;ajout de cuivre est une solution qui maintient la teneur en nickel-chrome stable tout en r\u00e9duisant l&#039;azote. La capacit\u00e9 de formation de phase aust\u00e9nite du cuivre peut \u00eatre davantage utilis\u00e9e pour remplacer et r\u00e9duire la teneur en nickel dans l&#039;acier (lorsque l&#039;azote est fix\u00e9).<\/p>\n<p><a href=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/08\/hjbxgg.jpg\" target=\"_blank\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-5152\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/08\/hjbxgg.jpg\" alt=\"hjbxgg\" width=\"600\" height=\"400\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/08\/hjbxgg.jpg 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/08\/hjbxgg-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>Plus la teneur en cuivre est \u00e9lev\u00e9e, plus il est facile \u00e0 emboutir, et moins il y a de nickel, moins l&#039;acier est cher.<\/p>\n<p>Ces am\u00e9liorations relatives ne signifient pas que la nuance d'acier \"200\" peut toujours remplacer la nuance d'acier \"300\", car la r\u00e9sistance \u00e0 la corrosion de la nuance d'acier \"200\" n\u00e9cessite une gamme tr\u00e8s \u00e9troite d'applications.<\/p>\n<p>La s\u00e9rie chrome-mangan\u00e8se est sensible aux transformations martensitiques, un changement microstructural qui peut se produire lors de la d\u00e9formation du mat\u00e9riau, en particulier pour les aciers \u00e0 faible teneur en nickel.<\/p>\n<p>La cons\u00e9quence du changement de phase est que l&#039;acier au nickel 4%, en particulier les raccords de tuyauterie soud\u00e9s bout \u00e0 bout au nickel 1%, pr\u00e9sentera clairement une fissuration retard\u00e9e apr\u00e8s emboutissage profond. Bien que l&#039;ajout d&#039;un traitement thermique apr\u00e8s l&#039;\u00e9tape de traitement puisse \u00e9viter les probl\u00e8mes ci-dessus, il augmente le co\u00fbt de fabrication.<\/p>","protected":false},"featured_media":5152,"template":"","categories":[186],"tags":[],"class_list":["post-5151","blog","type-blog","status-publish","has-post-thumbnail","hentry","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>Effect Of Nitrogen, Manganese, Nitrogen-Chromium On Welded Pipe Fittings - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\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\/blog\/effet-de-lazote-du-manganese-de-lazote-du-chrome-sur-les-raccords-de-tuyauterie-soudes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Effect Of Nitrogen, Manganese, Nitrogen-Chromium On Welded Pipe Fittings - Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"og:description\" content=\"Effect Of Nitrogen, Manganese, Nitrogen-Chromium On Welded Pipe Fittings Nitrogen acts as a hardener in butt welded pipe fittings. The mechanical properties (yield strength) of butt welded pipe steels with higher manganese, nitrogen and chromium contents are also relatively higher, sometimes than the hardness of 304 chrome-nickel steel. The strength is 30% higher. 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