{"id":117,"date":"2025-04-27T16:02:44","date_gmt":"2025-04-27T08:02:44","guid":{"rendered":"https:\/\/baolongtaisteel.com\/?post_type=product&#038;p=117"},"modified":"2025-04-27T16:43:37","modified_gmt":"2025-04-27T08:43:37","slug":"plaque-dacier-au-carbone-q345","status":"publish","type":"product","link":"https:\/\/baolongtaisteel.com\/fr\/product\/plaque-dacier-au-carbone-q345\/","title":{"rendered":"Plaque d&#039;acier au carbone Q345"},"content":{"rendered":"<h2 data-spm-anchor-id=\"a2ty_o01.29997173.0.i147.1a70c921yaavsG\">\u00a0\u00a0Tableau des d\u00e9tails du produit :<\/h2>\n<table class=\"tg\" style=\"border-collapse: collapse; border-spacing: 0;\">\n<thead>\n<tr>\n<th style=\"background-color: #9b9b9b; color: #ffffff; font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 600;\">Article<\/span><\/th>\n<th style=\"background-color: #9b9b9b; color: #ffffff; font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 600;\">D\u00e9tails<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Mod\u00e8le N\u00b0<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">ASTM, Q235, Q335, Q355, ASTM A36<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Certification<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">ISO, RoHS, IBR<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Traitement de surface<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Blackface<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Technique<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Lamin\u00e9 \u00e0 chaud\/Lamin\u00e9 \u00e0 froid<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Application<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Moules et matrices, plaques de navire, plaques de chaudi\u00e8re, plaques de conteneur, plaques de bride<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Usage sp\u00e9cial<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Outils de coupe, outils de mesure, fraises en acier ordinaire, t\u00f4le d&#039;acier haute r\u00e9sistance, acier r\u00e9sistant \u00e0 l&#039;usure, acier au silicium<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">\u00c9tat des stocks<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">En stock<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">\u00c9paisseur<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">0,12 mm \u2013 4 mm ou personnalis\u00e9<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Longueur<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">1 \u2013 12 m ou personnalis\u00e9<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Largeur<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">600 mm \u2013 1250 mm ou personnalis\u00e9<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Alliage ou pas<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Alliage<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Surface<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Noir ou huil\u00e9 pour \u00e9viter la rouille<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Conditions commerciales<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">EXW, FOB, CIF, CFR<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Quantit\u00e9 minimale de commande<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">5 tonnes<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Tol\u00e9rance<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">\u00b11%<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Service de traitement<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Pliage, soudage, d\u00e9roulage, d\u00e9coupe, poin\u00e7onnage<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Forfait transport<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Forfait navigable standard<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Sp\u00e9cification<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Personnalis\u00e9<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Origine<\/span><\/td>\n<td style=\"background-color: #fff; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Chine<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Capacit\u00e9 de production<\/span><\/td>\n<td style=\"background-color: #efefef; font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: middle; word-break: normal; border: 1px solid #000000;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">5000 tonnes par mois<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-spm-anchor-id=\"a2ty_o01.29997173.0.i147.1a70c921yaavsG\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-359\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp\" alt=\"\" width=\"1920\" height=\"1200\" srcset=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp 1920w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-600x375.webp 600w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-300x188.webp 300w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1024x640.webp 1024w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-768x480.webp 768w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/43c406184c4f4c7d99be4ca1aa6574c9_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1536x960.webp 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/h2>\n<h2>Propri\u00e9t\u00e9s physiques et chimiques<\/h2>\n<h3><strong>Propri\u00e9t\u00e9s physiques<\/strong><\/h3>\n<p><strong>Apparence:<\/strong><\/p>\n<p>Il pr\u00e9sente g\u00e9n\u00e9ralement une couleur gris m\u00e9tallis\u00e9, avec une surface lisse ou l\u00e9g\u00e8rement textur\u00e9e selon le proc\u00e9d\u00e9 de finition. Diff\u00e9rents traitements de surface, comme le grenaillage ou la peinture, peuvent \u00eatre appliqu\u00e9s pour am\u00e9liorer son aspect et sa r\u00e9sistance \u00e0 la corrosion.<\/p>\n<p><strong>Densit\u00e9:<\/strong><\/p>\n<p>La densit\u00e9 de l&#039;acier au carbone Q345 est d&#039;environ 7,85 g\/cm\u00b3, ce qui est typique de la plupart des aciers au carbone. Cette valeur est l\u00e9g\u00e8rement inf\u00e9rieure \u00e0 celle de l&#039;acier inoxydable, mais offre n\u00e9anmoins un excellent rapport r\u00e9sistance\/poids.<\/p>\n<p><strong>Point de fusion:<\/strong><\/p>\n<p>Le point de fusion de l&#039;acier au carbone Q345 est relativement \u00e9lev\u00e9, g\u00e9n\u00e9ralement compris entre 1\u00a0450 et 1\u00a0520 \u00b0C. Ce point de fusion \u00e9lev\u00e9 assure sa stabilit\u00e9 dans les environnements \u00e0 haute temp\u00e9rature, ce qui le rend id\u00e9al pour les applications structurelles.<\/p>\n<p><strong>Coefficient de dilatation thermique :<\/strong><\/p>\n<p>Le coefficient de dilatation thermique est mod\u00e9r\u00e9. Entre la temp\u00e9rature ambiante et 100 \u00b0C, le coefficient de dilatation thermique de l&#039;acier au carbone Q345 est d&#039;environ 11,7 \u00d7 10\u207b\u2076\/\u2103. Cette caract\u00e9ristique lui permet de conserver une bonne stabilit\u00e9 dimensionnelle \u00e0 des temp\u00e9ratures variables.<\/p>\n<p><strong>Conductivit\u00e9 thermique :<\/strong><\/p>\n<p>La conductivit\u00e9 thermique de l&#039;acier au carbone Q345 est relativement bonne par rapport \u00e0 celle de l&#039;acier inoxydable, avec un coefficient de conductivit\u00e9 thermique d&#039;environ 50-60 W\/(m\u00b7K). Il est donc adapt\u00e9 aux applications n\u00e9cessitant une dissipation thermique.<\/p>\n<p><strong>Conductivit\u00e9 \u00e9lectrique :<\/strong><\/p>\n<p>L&#039;acier au carbone Q345 a une conductivit\u00e9 \u00e9lectrique mod\u00e9r\u00e9e, mais il n&#039;est g\u00e9n\u00e9ralement pas utilis\u00e9 pour les applications \u00e9lectriques en raison de sa r\u00e9sistivit\u00e9 plus \u00e9lev\u00e9e par rapport au cuivre ou \u00e0 l&#039;aluminium.<\/p>\n<h2 data-spm-anchor-id=\"a2ty_o01.29997173.0.i147.1a70c921yaavsG\"><img decoding=\"async\" class=\"alignnone size-full wp-image-357\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp\" alt=\"\" width=\"1920\" height=\"1920\" srcset=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp 1920w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-300x300.webp 300w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-100x100.webp 100w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-600x600.webp 600w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1024x1024.webp 1024w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-150x150.webp 150w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-768x768.webp 768w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/17e2a2c70d6fd5ed67b048b55413f200_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1536x1536.webp 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/h2>\n<p><strong>Propri\u00e9t\u00e9s chimiques<\/strong><\/p>\n<p><strong>R\u00e9sistance \u00e0 la corrosion :<\/strong><\/p>\n<p>L&#039;acier au carbone Q345 pr\u00e9sente une r\u00e9sistance \u00e0 la corrosion limit\u00e9e par rapport \u00e0 l&#039;acier inoxydable. Sans rev\u00eatements ou traitements de protection suppl\u00e9mentaires, il est susceptible de rouiller dans les environnements humides ou corrosifs. Cependant, des traitements de surface tels que la galvanisation ou la peinture peuvent am\u00e9liorer consid\u00e9rablement sa r\u00e9sistance \u00e0 la corrosion.<\/p>\n<p><strong>Antioxydation :<\/strong><\/p>\n<p>\u00c0 temp\u00e9rature ambiante, l&#039;acier au carbone Q345 pr\u00e9sente une r\u00e9sistance mod\u00e9r\u00e9e \u00e0 l&#039;oxydation. Cependant, \u00e0 des temp\u00e9ratures plus \u00e9lev\u00e9es, il peut former des couches d&#039;oxyde qui r\u00e9duisent ses propri\u00e9t\u00e9s m\u00e9caniques. Des rev\u00eatements protecteurs ou des \u00e9l\u00e9ments d&#039;alliage peuvent am\u00e9liorer sa r\u00e9sistance \u00e0 l&#039;oxydation.<\/p>\n<p><strong>Stabilit\u00e9 chimique :<\/strong><\/p>\n<p>Dans les environnements chimiques courants, l&#039;acier au carbone Q345 pr\u00e9sente une stabilit\u00e9 chimique mod\u00e9r\u00e9e. Il ne r\u00e9siste pas aux acides ou bases forts, tels que l&#039;acide chlorhydrique ou l&#039;acide sulfurique, et peut se corroder rapidement dans ces milieux. Des mesures de protection appropri\u00e9es sont n\u00e9cessaires en cas d&#039;utilisation dans des environnements chimiques agressifs.<\/p>\n<p><strong>Passivation:<\/strong><\/p>\n<p>Contrairement \u00e0 l&#039;acier inoxydable, l&#039;acier au carbone Q345 ne forme pas naturellement de couche d&#039;oxyde passive. Cependant, des traitements de surface tels que la phosphatation ou le rev\u00eatement peuvent fournir une couche protectrice am\u00e9liorant sa r\u00e9sistance aux facteurs environnementaux.<\/p>\n<h2 data-spm-anchor-id=\"a2ty_o01.29997173.0.i147.1a70c921yaavsG\"><img decoding=\"async\" class=\"alignnone size-full wp-image-358\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp\" alt=\"\" width=\"1920\" height=\"1200\" srcset=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp 1920w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-600x375.webp 600w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-300x188.webp 300w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1024x640.webp 1024w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-768x480.webp 768w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/26cf2715e4fa166143f9bde93b468c63_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1536x960.webp 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/h2>\n<h2><strong>Application:<\/strong><\/h2>\n<p data-spm-anchor-id=\"a2ty_o01.29997173.0.i146.1a70c921yaavsG\">Les t\u00f4les d&#039;acier au carbone Q345 sont largement utilis\u00e9es dans divers domaines gr\u00e2ce \u00e0 leurs excellentes propri\u00e9t\u00e9s m\u00e9caniques, leur soudabilit\u00e9 et leur rentabilit\u00e9. Dans le secteur de la construction, elles sont utilis\u00e9es pour la fabrication de poutres, de ponts et de charpentes, garantissant une r\u00e9sistance et une durabilit\u00e9 \u00e9lev\u00e9es. Dans la fabrication de machines, elles sont transform\u00e9es en composants tels que des engrenages, des arbres et des r\u00e9servoirs sous pression, garantissant ainsi la fiabilit\u00e9 des \u00e9quipements. Dans l&#039;industrie automobile, l&#039;acier Q345 est utilis\u00e9 pour la fabrication de ch\u00e2ssis de v\u00e9hicules gr\u00e2ce \u00e0 sa robustesse et sa r\u00e9sistance aux chocs. De plus, dans la construction navale, les ol\u00e9oducs et gazoducs, ainsi que dans la fabrication de machines lourdes, les t\u00f4les d&#039;acier au carbone Q345 sont indispensables. Elles sont utilis\u00e9es pour la fabrication de r\u00e9servoirs, de pipelines et de supports structurels, s&#039;adaptant parfaitement aux conditions de travail exigeantes.<\/p>","protected":false},"excerpt":{"rendered":"<h4 class=\"elementor-heading-title elementor-size-default\" style=\"text-align: center; padding-bottom: 30px;\">Plaque d&#039;acier au carbone Q345<\/h4>\n<div>La plaque d&#039;acier au carbone Q345 est un acier de construction faiblement alli\u00e9 \u00e0 haute r\u00e9sistance, dot\u00e9 de bonnes propri\u00e9t\u00e9s m\u00e9caniques et d&#039;excellentes performances de mise en \u0153uvre. Elle est largement utilis\u00e9e dans des domaines tels que la construction, les ponts, les navires et les engins de chantier. Sa densit\u00e9 est d&#039;environ 7,85 g\/cm\u00b3, sa r\u00e9sistance \u00e0 la traction \u00e9lev\u00e9e et son excellente t\u00e9nacit\u00e9 sont id\u00e9ales pour les environnements \u00e0 moyennes et basses temp\u00e9ratures. La r\u00e9sistance \u00e0 la corrosion peut \u00eatre am\u00e9lior\u00e9e par un traitement de surface (comme la peinture ou la galvanisation) pour s&#039;adapter \u00e0 des conditions de travail complexes. Conforme \u00e0 la norme GB\/T 1591, elle est un mat\u00e9riau de haute qualit\u00e9 indispensable dans le secteur industriel.<\/div>\n<div>\n<hr class=\"dongte456custom-line\" \/>\n<\/div>\n<div style=\"padding-bottom: 5px;\">Cat\u00e9gorie : Plaque d&#039;acier au carbone Q345<\/div>\n<div>Mot cl\u00e9 : plaque d&#039;acier au carbone Q345<\/div>\n<div>\n<hr \/>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-257\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/\u7535\u8bdd\u56fe\u6807.jpg\" alt=\"\" width=\"48\" height=\"50\" \/>\u00a0 WhatsApp :<a href=\"https:\/\/api.whatsapp.com\/send?phone=8613963585512\" target=\"_blank\" rel=\"noopener\">\u00a0+8613963585512 <\/a><\/p>\n<div>\n<hr \/>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-258\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/\u90ae\u7bb1\u56fe\u6807.jpg\" alt=\"\" width=\"48\" height=\"55\" \/>\u00a0\u00a0E-mail : <a href=\"rachel@sdxhjmetal.com\" target=\"_blank\" rel=\"noopener\">\u00a0rachel@sdxhjmetal.com<\/a><\/p>\n<div>\n<hr \/>\n<\/div>\n<h3><\/h3>\n<div class=\"productaddbutton-container\">\n<div class=\"productaddbutton-wrapper\"><a class=\"productaddbutton\" href=\"https:\/\/baolongtaisteel.com\/index.php\/product\/\">Liste des produits<\/a><\/div>\n<div class=\"productaddbutton-wrapper\"><a class=\"productaddbutton\" href=\"#formSectiondongte\">Contactez-nous<\/a><\/div>\n<\/div>\n<div><\/div>","protected":false},"featured_media":355,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[17],"product_tag":[],"class_list":{"0":"post-117","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-carbon-steel","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product\/117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/comments?post=117"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/media\/355"}],"wp:attachment":[{"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/media?parent=117"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product_brand?post=117"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product_cat?post=117"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product_tag?post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}