{"id":2618,"date":"2025-09-18T01:36:04","date_gmt":"2025-09-18T01:36:04","guid":{"rendered":"https:\/\/greenyellow-gerbil-196913.hostingersite.com\/?post_type=product&#038;p=2618"},"modified":"2025-09-18T01:53:29","modified_gmt":"2025-09-18T01:53:29","slug":"large-square-billet-250x250mm-q345b","status":"publish","type":"product","link":"https:\/\/baosteelmaterials.com\/es\/producto\/large-square-billet-250x250mm-q345b\/","title":{"rendered":"Palanquilla cuadrada grande 250x250mm Q345B"},"content":{"rendered":"<table>\n<thead>\n<tr>\n<th>Par\u00e1metro<\/th>\n<th>Valor<\/th>\n<th>Observaciones<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Est\u00e1ndar<\/strong><\/td>\n<td>GB\/T 1591-2008<\/td>\n<td>Norma de acero estructural de alta resistencia y baja aleaci\u00f3n<\/td>\n<\/tr>\n<tr>\n<td><strong>Grado<\/strong><\/td>\n<td>Q345B<\/td>\n<td>Prueba de impacto a 20\u2103<\/td>\n<\/tr>\n<tr>\n<td><strong>Composici\u00f3n qu\u00edmica (wt%)<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- Carbono (C)<\/td>\n<td>\u22640.20<\/td>\n<td>Garantiza una buena soldabilidad y conformabilidad para la transformaci\u00f3n de grandes secciones<\/td>\n<\/tr>\n<tr>\n<td>- Silicio (Si)<\/td>\n<td>\u22640.55<\/td>\n<td>Ayuda a la desoxidaci\u00f3n y contribuye a conservar la fuerza<\/td>\n<\/tr>\n<tr>\n<td>- Manganeso (Mn)<\/td>\n<td>\u22641.70<\/td>\n<td>Mejora la resistencia y la tenacidad en secciones gruesas<\/td>\n<\/tr>\n<tr>\n<td>- F\u00f3sforo (P)<\/td>\n<td>\u22640.040<\/td>\n<td>Minimizado para evitar la fragilizaci\u00f3n en tochos grandes<\/td>\n<\/tr>\n<tr>\n<td>- Azufre (S)<\/td>\n<td>\u22640.040<\/td>\n<td>Su bajo contenido reduce el agrietamiento en caliente durante la fabricaci\u00f3n<\/td>\n<\/tr>\n<tr>\n<td>- Niobio (Nb)<\/td>\n<td>\u22640.07<\/td>\n<td>Microaleaci\u00f3n para el refinamiento del grano, cr\u00edtico para grandes secciones<\/td>\n<\/tr>\n<tr>\n<td>- Vanadio (V)<\/td>\n<td>\u22640.15<\/td>\n<td>Mejora la uniformidad de la resistencia en secciones transversales gruesas<\/td>\n<\/tr>\n<tr>\n<td>- Titanio (Ti)<\/td>\n<td>\u22640.20<\/td>\n<td>Mejora la tenacidad y la estabilidad estructural de los tochos grandes<\/td>\n<\/tr>\n<tr>\n<td>- Nitr\u00f3geno (N)<\/td>\n<td>\u22640.012<\/td>\n<td>Controlado para evitar la porosidad en acero grueso<\/td>\n<\/tr>\n<tr>\n<td><strong>Propiedades mec\u00e1nicas<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>- L\u00edmite el\u00e1stico (ReL)<\/td>\n<td>\u2265345 MPa<\/td>\n<td>Para espesor \u226416mm; ajustado para secci\u00f3n de 250mm seg\u00fan norma.<\/td>\n<\/tr>\n<tr>\n<td>- Resistencia a la tracci\u00f3n (Rm)<\/td>\n<td>470-630 MPa<\/td>\n<td>Garantiza la capacidad de carga en aplicaciones estructurales pesadas<\/td>\n<\/tr>\n<tr>\n<td>- Alargamiento (A)<\/td>\n<td>\u226521%<\/td>\n<td>Proporciona ductilidad para el trabajo en caliente\/fr\u00edo de palanquillas grandes<\/td>\n<\/tr>\n<tr>\n<td>- Energ\u00eda de impacto (Akv)<\/td>\n<td>\u226534 J<\/td>\n<td>A 20\u2103 (probeta longitudinal), resiste la fractura en secciones gruesas.<\/td>\n<\/tr>\n<tr>\n<td>- Prueba de flexi\u00f3n<\/td>\n<td>180\u00b0<\/td>\n<td>Di\u00e1metro de curvatura: 3a (para secci\u00f3n de 250 mm, \"a\" = dimensi\u00f3n pertinente)<\/td>\n<\/tr>\n<tr>\n<td><strong>Dimensiones<\/strong><\/td>\n<td>250 x 250 mm (secci\u00f3n cuadrada)<\/td>\n<td>Tama\u00f1o nominal; tolerancia conforme a GB\/T 702-2017<\/td>\n<\/tr>\n<tr>\n<td><strong>Longitud<\/strong><\/td>\n<td>6-12m (personalizable)<\/td>\n<td>Gama de suministro est\u00e1ndar; longitudes mayores disponibles bajo pedido<\/td>\n<\/tr>\n<tr>\n<td><strong>Calidad de la superficie<\/strong><\/td>\n<td>Sin grietas, pliegues ni escamas excesivas<\/td>\n<td>Garantiza la idoneidad para el tratamiento posterior (forja, laminado)<\/td>\n<\/tr>\n<tr>\n<td><strong>Condiciones de entrega<\/strong><\/td>\n<td>Laminado en caliente, normalizado o TMCP<\/td>\n<td>TMCP recomendado para propiedades mec\u00e1nicas \u00f3ptimas en grandes secciones<\/td>\n<\/tr>\n<tr>\n<td><strong>Aplicaciones t\u00edpicas<\/strong><\/td>\n<td>Bastidores de maquinaria pesada, componentes estructurales de puentes, tochos de tuber\u00edas de gran di\u00e1metro, carcasas de recipientes a presi\u00f3n y estructuras industriales de gran carga.<\/td>\n<td>Ideal para proyectos que requieren materias primas de gran tama\u00f1o y alta resistencia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>El tocho cuadrado grande 250x250mm Q345B es un producto de acero de alta resistencia y baja aleaci\u00f3n dise\u00f1ado para satisfacer las rigurosas exigencias de la fabricaci\u00f3n pesada y los proyectos de infraestructuras a gran escala. Conforme a las normas GB\/T 1591-2008, este tocho cuadrado de 250x250 mm combina una resistencia, una estabilidad dimensional y una trabajabilidad excepcionales, lo que lo convierte en una materia prima indispensable para crear componentes robustos y portantes en la construcci\u00f3n, la maquinaria y la ingenier\u00eda industrial.<\/p>","protected":false},"featured_media":2565,"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":"","ast-disable-related-posts":"","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":[27],"product_tag":[],"class_list":["post-2618","product","type-product","status-publish","has-post-thumbnail","product_cat-square-billets","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/product\/2618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/comments?post=2618"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/media\/2565"}],"wp:attachment":[{"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/media?parent=2618"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/product_brand?post=2618"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/product_cat?post=2618"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/baosteelmaterials.com\/es\/wp-json\/wp\/v2\/product_tag?post=2618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}