{"id":2544,"date":"2025-09-18T00:38:23","date_gmt":"2025-09-18T00:38:23","guid":{"rendered":"https:\/\/greenyellow-gerbil-196913.hostingersite.com\/?post_type=product&#038;p=2544"},"modified":"2025-09-18T00:44:13","modified_gmt":"2025-09-18T00:44:13","slug":"car-beam-steel-billet-q345b","status":"publish","type":"product","link":"https:\/\/baosteelmaterials.com\/fr\/produit\/car-beam-steel-billet-q345b\/","title":{"rendered":"Poutre de voiture en acier Billet Q345B"},"content":{"rendered":"<table>\n<thead>\n<tr>\n<th>Param\u00e8tres<\/th>\n<th>Valeur<\/th>\n<th>Remarques<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Standard<\/strong><\/td>\n<td>GB\/T 1591-2008<\/td>\n<td>Acier de construction \u00e0 haute r\u00e9sistance faiblement alli\u00e9<\/td>\n<\/tr>\n<tr>\n<td><strong>Grade<\/strong><\/td>\n<td>Q345B<\/td>\n<td>Impact test\u00e9 \u00e0 20\u2103<\/td>\n<\/tr>\n<tr>\n<td><strong>Composition chimique (wt%)<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Carbone (C)<\/td>\n<td>\u22640.20<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Silicium (Si)<\/td>\n<td>\u22640.55<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Mangan\u00e8se (Mn)<\/td>\n<td>\u22641.70<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Phosphore (P)<\/td>\n<td>\u22640.040<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Soufre (S)<\/td>\n<td>\u22640.040<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Niobium (Nb)<\/td>\n<td>\u22640.07<\/td>\n<td>\u00c9l\u00e9ment de microalliage<\/td>\n<\/tr>\n<tr>\n<td>- Vanadium (V)<\/td>\n<td>\u22640.15<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Titane (Ti)<\/td>\n<td>\u22640.20<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Azote (N)<\/td>\n<td>\u22640.012<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Propri\u00e9t\u00e9s m\u00e9caniques<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Limite d'\u00e9lasticit\u00e9 (ReL)<\/td>\n<td>\u2265345 MPa<\/td>\n<td>Pour une \u00e9paisseur \u226416mm ; utiliser Rp0.2 si le rendement n'est pas \u00e9vident<\/td>\n<\/tr>\n<tr>\n<td>- R\u00e9sistance \u00e0 la traction (Rm)<\/td>\n<td>470-630 MPa<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Allongement (A)<\/td>\n<td>\u226521%<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- \u00c9nergie d'impact (Akv)<\/td>\n<td>\u226534 J<\/td>\n<td>A 20\u2103, l'\u00e9chantillon longitudinal<\/td>\n<\/tr>\n<tr>\n<td>- Essai de flexion<\/td>\n<td>180\u00b0<\/td>\n<td>Diam\u00e8tre du coude : 2a pour \u226416mm ; 3a pour &gt;16mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Conditions de livraison<\/strong><\/td>\n<td>Lamin\u00e9s \u00e0 chaud, normalis\u00e9s, normalis\u00e9s + tremp\u00e9s, TMCP<\/td>\n<td>Selon les exigences de la commande<\/td>\n<\/tr>\n<tr>\n<td><strong>Applications typiques<\/strong><\/td>\n<td>Poutres de voitures, cadres, ponts, machines de construction<\/td>\n<td>Bonne soudabilit\u00e9 et formabilit\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Notre billette d'acier pour poutre de voiture est fabriqu\u00e9e en acier Q345B faiblement alli\u00e9 \u00e0 haute r\u00e9sistance, sp\u00e9cialement con\u00e7u pour les applications structurelles automobiles. Cette billette de qualit\u00e9 sup\u00e9rieure offre une excellente combinaison de solidit\u00e9, de formabilit\u00e9 et de r\u00e9sistance aux chocs, ce qui la rend id\u00e9ale pour les composants de s\u00e9curit\u00e9 critiques dans la fabrication des v\u00e9hicules. La nuance Q345B offre des propri\u00e9t\u00e9s m\u00e9caniques sup\u00e9rieures \u00e0 celles des aciers au carbone standard, ce qui garantit des performances et une fiabilit\u00e9 accrues dans les ch\u00e2ssis automobiles, les syst\u00e8mes de cadres et les poutres structurelles o\u00f9 la r\u00e9duction du poids et la r\u00e9sistance \u00e0 l'\u00e9crasement sont essentielles.<\/p>","protected":false},"featured_media":2503,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[26],"product_tag":[],"class_list":["post-2544","product","type-product","status-publish","has-post-thumbnail","product_cat-specialty-billets","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product\/2544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/comments?post=2544"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/media\/2503"}],"wp:attachment":[{"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/media?parent=2544"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product_brand?post=2544"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product_cat?post=2544"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product_tag?post=2544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}