{"id":122,"date":"2025-04-24T17:21:01","date_gmt":"2025-04-24T09:21:01","guid":{"rendered":"https:\/\/baolongtaisteel.com\/?post_type=product&#038;p=122"},"modified":"2025-04-27T15:59:33","modified_gmt":"2025-04-27T07:59:33","slug":"bobine-dacier-au-carbone-q235b","status":"publish","type":"product","link":"https:\/\/baolongtaisteel.com\/fr\/product\/bobine-dacier-au-carbone-q235b\/","title":{"rendered":"Bobine d&#039;acier au carbone Q235B"},"content":{"rendered":"<h2>\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 black;\"><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 black;\"><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 black;\"><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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Q195, Q235B, Q345B, SPHC, A36, st37-2<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Standard<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">ASTM, JIS, GB, AISI, DIN, BS<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Certification<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">ISO, RoHS<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Traitement de 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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Brillant<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Technique<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">lamin\u00e9 \u00e0 chaud<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Application<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Construction, construction navale, fabrication de machines<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Bord<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">bord fendu<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">\u00c9tat des stocks<\/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 black;\"><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: #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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Produits<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Bobine d&#039;acier au carbone<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Mat\u00e9riel<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Q235B, A36, Q195, Ss400, St37-2, etc.<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">\u00c9paisseur<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">6 \u2013 400 mm<\/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 black;\"><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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">800 \u2013 330 mm (les plus courants sont 914 mm, 1215 mm, 1250 mm, 1000 mm)<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Peinture noire, peinture vernis, huile antirouille (la description de \u00ab\u00a0chaud\u00a0\u00bb est incompl\u00e8te)<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Poids de la bobine<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">3 \u00e0 10 Mt<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Taille int\u00e9rieure de la bobine<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">508 mm\/610 mm<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Certificat d&#039;essai de moulin<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Nous pouvons le fournir.<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Stock 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 black;\"><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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Emballage<\/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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Emballage standard<\/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 black;\"><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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">Emballage 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 black;\"><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 black;\"><span style=\"font-weight: 400; color: var(--md-box-samantha-normal-text-color);\">3 \u00e0 10 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 black;\"><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 black;\"><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 black;\"><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 black;\"><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><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-339\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp\" alt=\"\" width=\"1920\" height=\"1147\" srcset=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp 1920w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-600x358.webp 600w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-300x179.webp 300w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1024x612.webp 1024w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-768x459.webp 768w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/2c8d7aadd274460db58f2ef816c3688_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1536x918.webp 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/h2>\n<h2><strong>Propri\u00e9t\u00e9s physiques et chimiques :<\/strong><\/h2>\n<h3><strong>Propri\u00e9t\u00e9s physiques<\/strong><\/h3>\n<p><strong>Apparence:<\/strong><\/p>\n<p>Il se pr\u00e9sente g\u00e9n\u00e9ralement sous une couleur gris fonc\u00e9 m\u00e9tallis\u00e9, avec une surface mate ou l\u00e9g\u00e8rement brillante selon le proc\u00e9d\u00e9 de finition. La surface peut \u00eatre trait\u00e9e par galvanisation, peinture ou huilage pour am\u00e9liorer sa r\u00e9sistance \u00e0 la corrosion et son esth\u00e9tique.<\/p>\n<p><strong>Densit\u00e9:<\/strong><\/p>\n<p>La densit\u00e9 de l&#039;acier au carbone Q235B est d&#039;environ 7,85 g\/cm\u00b3, ce qui correspond \u00e0 celle de la plupart des aciers au carbone. Il est donc l\u00e9g\u00e8rement plus dense que l&#039;acier inoxydable, mais plus l\u00e9ger que les aciers fortement alli\u00e9s.<\/p>\n<p><strong>Point de fusion:<\/strong><\/p>\n<p>Le point de fusion de l&#039;acier au carbone Q235B est relativement \u00e9lev\u00e9, g\u00e9n\u00e9ralement autour de 1480-1520 \u00b0C. Cela lui permet de conserver son int\u00e9grit\u00e9 structurelle dans des environnements \u00e0 haute temp\u00e9rature, bien qu&#039;une exposition prolong\u00e9e \u00e0 une chaleur extr\u00eame puisse affecter ses propri\u00e9t\u00e9s m\u00e9caniques.<\/p>\n<p><strong>Coefficient de dilatation thermique :<\/strong><\/p>\n<p>Le coefficient de dilatation thermique de l&#039;acier au carbone Q235B est mod\u00e9r\u00e9, d&#039;environ 11,7 \u00d7 10\u207b\u2076\/\u2103 entre la temp\u00e9rature ambiante et 100 \u2103. Cette caract\u00e9ristique assure une stabilit\u00e9 dimensionnelle dans des conditions de temp\u00e9rature variables.<\/p>\n<p><strong>Conductivit\u00e9 thermique :<\/strong><\/p>\n<p>L&#039;acier au carbone Q235B pr\u00e9sente une bonne conductivit\u00e9 thermique, avec un coefficient de conductivit\u00e9 thermique d&#039;environ 50-60 W\/(m\u00b7K). Ce coefficient est nettement sup\u00e9rieur \u00e0 celui de l&#039;acier inoxydable, ce qui le rend id\u00e9al pour les applications n\u00e9cessitant un transfert thermique efficace.<\/p>\n<p><strong>Conductivit\u00e9 \u00e9lectrique :<\/strong><\/p>\n<p>Sa conductivit\u00e9 \u00e9lectrique est mod\u00e9r\u00e9e, mais comme la plupart des aciers au carbone, il n&#039;est pas principalement utilis\u00e9 pour des applications \u00e9lectriques. La conductivit\u00e9 de l&#039;acier au carbone Q235B est inf\u00e9rieure \u00e0 celle du cuivre ou de l&#039;aluminium, ce qui le rend inadapt\u00e9 aux exigences de conductivit\u00e9 \u00e9lev\u00e9e.<\/p>\n<h2><img decoding=\"async\" class=\"alignnone size-full wp-image-338\" src=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp\" alt=\"\" width=\"1919\" height=\"1645\" srcset=\"https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c.webp 1919w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-600x514.webp 600w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-300x257.webp 300w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1024x878.webp 1024w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-768x658.webp 768w, https:\/\/baolongtaisteel.com\/wp-content\/uploads\/2025\/04\/e81083cb33be70fc4ddd021e44db18e_\u55e8\u683c\u5f0f\u538b\u7f29\u526f\u672c_\u7ed3\u679c-1536x1317.webp 1536w\" sizes=\"(max-width: 1919px) 100vw, 1919px\" \/><\/h2>\n<h2><strong>Propri\u00e9t\u00e9s chimiques<\/strong><\/h2>\n<p><strong>R\u00e9sistance \u00e0 la corrosion :<\/strong><\/p>\n<p>L&#039;acier au carbone Q235B pr\u00e9sente une r\u00e9sistance \u00e0 la corrosion limit\u00e9e par rapport \u00e0 l&#039;acier inoxydable. Il est sujet \u00e0 la rouille lorsqu&#039;il est expos\u00e9 \u00e0 l&#039;humidit\u00e9 ou \u00e0 des environnements corrosifs. Cependant, des traitements de surface tels que la galvanisation, la peinture ou le rev\u00eatement peuvent am\u00e9liorer consid\u00e9rablement sa r\u00e9sistance \u00e0 la corrosion. Par exemple, l&#039;acier Q235B galvanis\u00e9 est largement utilis\u00e9 en ext\u00e9rieur en raison de sa durabilit\u00e9 accrue.<\/p>\n<p><strong>R\u00e9sistance \u00e0 l&#039;oxydation :<\/strong><\/p>\n<p>\u00c0 temp\u00e9rature ambiante, l&#039;acier au carbone Q235B pr\u00e9sente une r\u00e9sistance mod\u00e9r\u00e9e \u00e0 l&#039;oxydation. Cependant, \u00e0 temp\u00e9rature \u00e9lev\u00e9e, il est sensible \u00e0 l&#039;oxydation, ce qui peut entra\u00eener un \u00e9caillage et une diminution de la r\u00e9sistance m\u00e9canique. Des rev\u00eatements protecteurs ou des \u00e9l\u00e9ments d&#039;alliage sont souvent utilis\u00e9s pour am\u00e9liorer ses performances dans les environnements \u00e0 haute temp\u00e9rature.<\/p>\n<p><strong>Stabilit\u00e9 chimique :<\/strong><\/p>\n<p>En milieu chimique g\u00e9n\u00e9ral, l&#039;acier au carbone Q235B pr\u00e9sente une stabilit\u00e9 chimique mod\u00e9r\u00e9e. Il r\u00e9agit aux acides forts tels que l&#039;acide chlorhydrique et l&#039;acide sulfurique, provoquant ainsi la corrosion. Cependant, il se comporte bien en milieu neutre ou l\u00e9g\u00e8rement alcalin, ce qui le rend adapt\u00e9 aux applications structurelles et industrielles.<\/p>\n<p><strong>Passivation:<\/strong><\/p>\n<p>Contrairement \u00e0 l&#039;acier inoxydable, l&#039;acier au carbone Q235B ne forme pas naturellement de couche de passivation. Des traitements de surface tels que la galvanisation ou l&#039;application de rev\u00eatements protecteurs sont essentiels pour pr\u00e9venir l&#039;oxydation et la corrosion. Ces traitements cr\u00e9ent une barri\u00e8re entre l&#039;acier et l&#039;environnement, prolongeant ainsi sa dur\u00e9e de vie.<\/p>\n<p><strong>Application:<\/strong><\/p>\n<p>Les bobines d&#039;acier au carbone Q235B sont largement utilis\u00e9es dans divers secteurs industriels en raison de leurs excellentes propri\u00e9t\u00e9s m\u00e9caniques, de leur prix abordable et de leur facilit\u00e9 de mise en \u0153uvre. Dans la construction, elles sont couramment utilis\u00e9es pour les charpentes, les poutres et les barres d&#039;armature en raison de leur r\u00e9sistance et de leur durabilit\u00e9 \u00e9lev\u00e9es. Dans l&#039;industrie manufacturi\u00e8re, elles sont transform\u00e9es en composants tels que des pi\u00e8ces automobiles, des ch\u00e2ssis de machines et des pipelines. Dans le secteur de l&#039;\u00e9nergie, elles servent \u00e0 la fabrication de r\u00e9servoirs de stockage, d&#039;appareils sous pression et de supports structurels. De plus, dans l&#039;industrie des transports, les bobines d&#039;acier au carbone Q235B sont indispensables \u00e0 la production de ch\u00e2ssis de v\u00e9hicules, de remorques et de conteneurs maritimes. Avec des traitements de surface appropri\u00e9s, elles peuvent \u00e9galement \u00eatre utilis\u00e9es dans des environnements difficiles, tels que les structures maritimes et les usines chimiques.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<h4 class=\"elementor-heading-title elementor-size-default\" style=\"text-align: center; padding-bottom: 30px;\">Bobine d&#039;acier au carbone Q235B<\/h4>\n<div>La bobine d&#039;acier au carbone Q235B est un acier de construction largement utilis\u00e9. Sa teneur en carbone est d&#039;environ 0,15 \u00e0 0,201 TP3T, offrant une excellente r\u00e9sistance, t\u00e9nacit\u00e9 et soudabilit\u00e9. Sa masse volumique est d&#039;environ 7,85 g\/cm\u00b3 et son point de fusion est compris entre 1480 et 1520 \u00b0C. Ce mat\u00e9riau est g\u00e9n\u00e9ralement propos\u00e9 en finition gris fonc\u00e9 et peut \u00eatre trait\u00e9 en surface (galvanis\u00e9 ou peint, par exemple) pour am\u00e9liorer sa r\u00e9sistance \u00e0 la corrosion. Les bobines Q235B sont id\u00e9ales pour la construction, la fabrication de machines, les pipelines et l&#039;automobile gr\u00e2ce \u00e0 leur prix abordable, leur facilit\u00e9 de mise en \u0153uvre et leur adaptabilit\u00e9 \u00e0 divers environnements. Un rev\u00eatement de protection appropri\u00e9 est recommand\u00e9 en cas d&#039;utilisation dans des conditions corrosives ou \u00e0 haute temp\u00e9rature.<\/div>\n<div>\n<hr class=\"dongte456custom-line\" \/>\n<\/div>\n<div style=\"padding-bottom: 5px;\">Cat\u00e9gorie : Bobine d&#039;acier au carbone Q235B<\/div>\n<div>Mot cl\u00e9 : Bobine d&#039;acier au carbone Q235B<\/div>\n<div>\n<hr \/>\n<\/div>\n<p><img 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":325,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[17],"product_tag":[],"class_list":{"0":"post-122","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\/122","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=122"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/media\/325"}],"wp:attachment":[{"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/media?parent=122"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product_brand?post=122"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product_cat?post=122"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/baolongtaisteel.com\/fr\/wp-json\/wp\/v2\/product_tag?post=122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}