{"id":2549,"date":"2025-09-18T00:55:08","date_gmt":"2025-09-18T00:55:08","guid":{"rendered":"https:\/\/greenyellow-gerbil-196913.hostingersite.com\/?post_type=product&#038;p=2549"},"modified":"2025-09-18T00:57:50","modified_gmt":"2025-09-18T00:57:50","slug":"h-type-billet-q345b","status":"publish","type":"product","link":"https:\/\/baosteelmaterials.com\/fr\/produit\/h-type-billet-q345b\/","title":{"rendered":"Billet de type H 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>Norme r\u00e9f\u00e9renc\u00e9e<\/strong><\/td>\n<td>GB\/T 1591-2008<\/td>\n<td>Norme pour les aciers de construction \u00e0 haute r\u00e9sistance faiblement alli\u00e9s<\/td>\n<\/tr>\n<tr>\n<td><strong>Grade<\/strong><\/td>\n<td>Q345B<\/td>\n<td>La temp\u00e9rature du test d'impact est de 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 pour am\u00e9liorer les propri\u00e9t\u00e9s<\/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 ou un diam\u00e8tre \u226416mm ; utiliser Rp0.2 si la limite d'\u00e9lasticit\u00e9 n'est pas claire<\/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 de courbure : 2a pour \u226416mm ; 3a pour &gt;16mm (o\u00f9 \"a\" repr\u00e9sente la dimension pertinente comme l'\u00e9paisseur ou le diam\u00e8tre).<\/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 (Thermo-Mechanical Control Process), etc.<\/td>\n<td>Sur la base des exigences sp\u00e9cifiques de la commande du client<\/td>\n<\/tr>\n<tr>\n<td><strong>Applications typiques<\/strong><\/td>\n<td>Structures en acier en forme de H dans la construction, les ponts, les b\u00e2timents industriels, ainsi que pour certains \u00e9l\u00e9ments de charpente n\u00e9cessitant une grande r\u00e9sistance et une bonne formabilit\u00e9.<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>La billette Q345B de type H est un acier de construction de premi\u00e8re qualit\u00e9, faiblement alli\u00e9 et \u00e0 haute r\u00e9sistance, con\u00e7u pour les projets de construction et d'ing\u00e9nierie exigeants. Conforme aux normes GB\/T 1591-2008, cette billette profil\u00e9e en H offre un m\u00e9lange exceptionnel de r\u00e9sistance, de t\u00e9nacit\u00e9 et de maniabilit\u00e9, ce qui en fait un choix privil\u00e9gi\u00e9 pour les structures n\u00e9cessitant des performances fiables sous de lourdes charges.<\/p>","protected":false},"featured_media":2518,"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-2549","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\/2549","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=2549"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/media?parent=2549"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product_brand?post=2549"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product_cat?post=2549"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/fr\/wp-json\/wp\/v2\/product_tag?post=2549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}