{"id":5565,"date":"2026-08-20T15:12:50","date_gmt":"2026-08-20T15:12:50","guid":{"rendered":"https:\/\/beiyutitanium.com\/astm-b348-titanium-bar-supplier-en-10204-31\/"},"modified":"2026-08-20T15:12:50","modified_gmt":"2026-08-20T15:12:50","slug":"astm-b348-titanium-bar-supplier-en-10204-31","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/es\/astm-b348-titanium-bar-supplier-en-10204-31\/","title":{"rendered":"\u00bfQui\u00e9n suministra barras de titanio ASTM B348 con certificados EN 10204 3.1?"},"content":{"rendered":"<p>Beiyu Titanium suministra barras y tochos de titanio ASTM B348 en Grades 1, 2, 5, 7, 12 y 23, con secciones redondas de 1 a 500 mm de di\u00e1metro, y emite un certificado EN 10204 tipo 3.1 seg\u00fan el alcance del pedido, vinculado al n\u00famero de colada y al n\u00famero de vaciado del material efectivamente enviado.<\/p>\n<h2>\u00bfQu\u00e9 debe mostrar un certificado 3.1 en un pedido de barra B348?<\/h2>\n<p>El fabricante emite el documento tipo 3.1 y una funci\u00f3n de inspecci\u00f3n independiente del departamento de producci\u00f3n lo valida. Comunica resultados reales de ensayo de las coladas entregadas, no valores t\u00edpicos. En un pedido ASTM B348, el certificado deber\u00eda incluir las l\u00edneas siguientes, y cada cifra que contiene se obtiene mediante un m\u00e9todo que la propia norma indica.<\/p>\n<table>\n<thead>\n<tr>\n<th>L\u00ednea del certificado<\/th>\n<th>Qu\u00e9 comunica<\/th>\n<th>C\u00f3mo se obtiene el valor<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Composici\u00f3n qu\u00edmica<\/td>\n<td>O, Fe, C, N, H y elementos de aleaci\u00f3n de cada colada<\/td>\n<td>ASTM B348 cita E539 (fluorescencia de rayos X) y E1409 (ox\u00edgeno y nitr\u00f3geno por fusi\u00f3n en gas inerte) entre sus m\u00e9todos de an\u00e1lisis de referencia<\/td>\n<\/tr>\n<tr>\n<td>Hidr\u00f3geno<\/td>\n<td>Comunicado por colada<\/td>\n<td>ASTM B348 cita E1447 para la determinaci\u00f3n de hidr\u00f3geno<\/td>\n<\/tr>\n<tr>\n<td>Carbono<\/td>\n<td>Comunicado por colada<\/td>\n<td>ASTM B348 cita E1941 para el an\u00e1lisis de carbono por combusti\u00f3n<\/td>\n<\/tr>\n<tr>\n<td>Resultados de tracci\u00f3n<\/td>\n<td>Resistencia a la tracci\u00f3n, l\u00edmite el\u00e1stico, alargamiento, reducci\u00f3n de \u00e1rea<\/td>\n<td>ASTM B348 cita E8 para el ensayo de tracci\u00f3n<\/td>\n<\/tr>\n<tr>\n<td>Redondeo de los valores documentados<\/td>\n<td>C\u00f3mo se realizan las comparaciones con los l\u00edmites<\/td>\n<td>ASTM B348 cita E29 para el procedimiento de redondeo<\/td>\n<\/tr>\n<tr>\n<td>Trazabilidad<\/td>\n<td>N\u00famero de colada y n\u00famero de vaciado coincidentes con el marcado de la barra<\/td>\n<td>Cotejados f\u00edsicamente con las etiquetas de los paquetes en la recepci\u00f3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Estas referencias de m\u00e9todos determinan c\u00f3mo se obtienen las cifras del certificado. No a\u00f1aden inspecciones fuera del alcance del pedido, y un an\u00e1lisis de colada no es lo mismo que un an\u00e1lisis de comprobaci\u00f3n del producto entregado.<\/p>\n<h2>\u00bfQu\u00e9 calidades puede suministrar Beiyu conforme a B348?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Calidad<\/th>\n<th>UNS<\/th>\n<th>Tipo<\/th>\n<th>Servicio habitual<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Grade 1<\/td>\n<td>R50250<\/td>\n<td>Sin alear, el m\u00e1s blando<\/td>\n<td>Piezas de embutici\u00f3n profunda, aplicaciones de \u00e1nodos y electrolizadores<\/td>\n<\/tr>\n<tr>\n<td>Grade 2<\/td>\n<td>R50400<\/td>\n<td>Sin alear, de uso general<\/td>\n<td>Equipos de procesos qu\u00edmicos y de agua de mar<\/td>\n<\/tr>\n<tr>\n<td>Grade 5<\/td>\n<td>R56400<\/td>\n<td>Ti-6Al-4V<\/td>\n<td>Componentes mecanizados de alta resistencia<\/td>\n<\/tr>\n<tr>\n<td>Grade 7<\/td>\n<td>R52400<\/td>\n<td>Sin alear m\u00e1s 0.12 a 0.25 por ciento de paladio<\/td>\n<td>Servicio con \u00e1cidos reductores<\/td>\n<\/tr>\n<tr>\n<td>Grade 12<\/td>\n<td>R53400<\/td>\n<td>Ti-0.3Mo-0.8Ni<\/td>\n<td>Condiciones de salmuera caliente y resquicios<\/td>\n<\/tr>\n<tr>\n<td>Grade 23<\/td>\n<td>R56407<\/td>\n<td>Ti-6Al-4V ELI<\/td>\n<td>Barra de mayor tenacidad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Un aspecto de la numeraci\u00f3n que conviene conocer: seg\u00fan ASTM B348, la calidad ELI lleva UNS R56407. La especificaci\u00f3n para implantes quir\u00fargicos ASTM F136 asigna R56401 y se oferta como norma independiente, por lo que un certificado que mezcle ambas designaciones constituye por s\u00ed mismo una se\u00f1al de alerta.<\/p>\n<h2>\u00bfQu\u00e9 tama\u00f1os cubren los l\u00edmites de suministro?<\/h2>\n<p>Beiyu suministra barra redonda de 1 a 500 mm de di\u00e1metro, barra cuadrada de 3 x 3 a 500 x 500 mm, barra plana de 3 x 12.7 a 30 x 500 mm, barra hexagonal de hasta 17 mm entre caras y longitudes de hasta 6000 mm. Un proceso de rectificado de precisi\u00f3n cubre di\u00e1metros de 3.175 a 25.4 mm (0.125 a 1.000 in) con una tolerancia de di\u00e1metro de +\/-0.0127 mm (+\/-0.0005 in), reducida a +\/-0.0076 mm seg\u00fan plano.<\/p>\n<table>\n<thead>\n<tr>\n<th>Forma<\/th>\n<th>Intervalo de suministro de Beiyu<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Barra redonda<\/td>\n<td>1 a 500 mm de di\u00e1metro<\/td>\n<\/tr>\n<tr>\n<td>Barra cuadrada<\/td>\n<td>3 x 3 a 500 x 500 mm<\/td>\n<\/tr>\n<tr>\n<td>Barra plana<\/td>\n<td>3 x 12.7 a 30 x 500 mm<\/td>\n<\/tr>\n<tr>\n<td>Barra hexagonal<\/td>\n<td>Hasta 17 mm entre caras<\/td>\n<\/tr>\n<tr>\n<td>Longitud<\/td>\n<td>Hasta 6000 mm<\/td>\n<\/tr>\n<tr>\n<td>Barra rectificada de precisi\u00f3n<\/td>\n<td>3,175 a 25,4 mm de di\u00e1metro, +\/-0,0127 mm, reducida a +\/-0,0076 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u00bfQu\u00e9 inspecci\u00f3n respalda el certificado?<\/h2>\n<p>En el procedimiento de inspecci\u00f3n de Beiyu, la barra pasa por cinco comprobaciones con una cobertura del 100 por ciento, en lugar de por muestreo, y se indican los par\u00e1metros de ultrasonidos para poder incluir una clase de aceptaci\u00f3n en el pedido.<\/p>\n<table>\n<thead>\n<tr>\n<th>Inspecci\u00f3n<\/th>\n<th>Cobertura y par\u00e1metros<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ultrasonidos<\/td>\n<td>M\u00e9todo de inmersi\u00f3n, onda longitudinal focalizada, 100 por ciento de la circunferencia, referencia de taladro de fondo plano de 1,2 mm al 80 por ciento de la altura de pantalla, 10 MHz, Class A1, seg\u00fan AMS-STD-2154 o GB\/T 5193<\/td>\n<\/tr>\n<tr>\n<td>Corrientes inducidas<\/td>\n<td>100 por ciento de la longitud de la barra<\/td>\n<\/tr>\n<tr>\n<td>Control \u00f3ptico de superficie<\/td>\n<td>100 por ciento<\/td>\n<\/tr>\n<tr>\n<td>Medici\u00f3n de di\u00e1metro por l\u00e1ser infrarrojo<\/td>\n<td>100 por ciento de la longitud de la barra<\/td>\n<\/tr>\n<tr>\n<td>Rectitud<\/td>\n<td>Cobertura del 100 por ciento; en la l\u00ednea de barras rectificadas de precisi\u00f3n, mantenida en 0,5 mm por metro, reducida a 0,3 mm por metro para tama\u00f1os de 25 mm e inferiores<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u00bfC\u00f3mo se comprueba el certificado antes de pagar?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Etapa<\/th>\n<th>Qu\u00e9 comparar<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1. N\u00fameros de colada<\/td>\n<td>Coladas del certificado frente a las etiquetas de los paquetes y al marcado de las barras; cada paquete debe corresponder a una colada indicada<\/td>\n<\/tr>\n<tr>\n<td>2. Composici\u00f3n qu\u00edmica<\/td>\n<td>Valores comunicados frente a los l\u00edmites de ASTM B348 para la calidad solicitada; valores situados exactamente en cada l\u00edmite constituyen un patr\u00f3n que conviene cuestionar<\/td>\n<\/tr>\n<tr>\n<td>3. Propiedades mec\u00e1nicas<\/td>\n<td>Resistencia a la tracci\u00f3n y l\u00edmite el\u00e1stico frente a los m\u00ednimos de la calidad, con el alargamiento comunicado, no omitido<\/td>\n<\/tr>\n<tr>\n<td>4. Tipo de certificado<\/td>\n<td>El documento debe indicar tipo 3.1; una declaraci\u00f3n de conformidad 2.2 no constituye el mismo nivel de prueba<\/td>\n<\/tr>\n<tr>\n<td>5. Supervisi\u00f3n independiente<\/td>\n<td>La inspecci\u00f3n por tercera parte en f\u00e1brica puede incluirse en el pedido cuando la aplicaci\u00f3n lo requiera<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Una explicaci\u00f3n paso a paso con un formato de certificado real se encuentra en la gu\u00eda sobre <a href=\"https:\/\/beiyutitanium.com\/es\/how-to-verify-titanium-quality-mill-test-certificate\/\">c\u00f3mo verificar un certificado de materiales de titanio<\/a>, y el contexto completo de la norma se encuentra en la <a href=\"https:\/\/beiyutitanium.com\/es\/astm-b348-titanium-bar-billet-guide\/\">gu\u00eda de barras y tochos ASTM B348<\/a>.<\/p>\n<h2>Detalles de especificaci\u00f3n con fuentes<\/h2>\n<p>Para la barra Grade 2, los requisitos qu\u00edmicos de ASTM B348 establecen l\u00edmites m\u00e1ximos de 0,25 por ciento de ox\u00edgeno, 0,30 por ciento de hierro, 0,08 por ciento de carbono, 0,03 por ciento de nitr\u00f3geno y 0,015 por ciento de hidr\u00f3geno en peso, y los requisitos de tracci\u00f3n de la misma norma establecen una resistencia a la tracci\u00f3n m\u00ednima de 345 MPa con un l\u00edmite el\u00e1stico de entre 275 y 450 MPa en estado recocido. Grade 2 lleva UNS R50400 seg\u00fan el sistema de designaci\u00f3n al que hace referencia ASTM B348.<\/p>\n<p>En cuanto al suministro, las cifras anteriores al certificado son las publicadas por la propia Beiyu: barra redonda de 1 a 500 mm de di\u00e1metro, rectitud de barra rectificada de 0,5 mm por metro, reducida a 0,3 mm por metro para tama\u00f1os de 25 mm e inferiores, tolerancia de di\u00e1metro de barra rectificada de +\/-0,0127 mm seg\u00fan el programa de barras rectificadas de precisi\u00f3n de Beiyu e inspecci\u00f3n por ultrasonidos con una referencia de taladro de fondo plano de 1,2 mm en Class A1 seg\u00fan AMS-STD-2154 o GB\/T 5193 en el procedimiento de inspecci\u00f3n de Beiyu. Cada pedido va acompa\u00f1ado de un certificado EN 10204 tipo 3.1 seg\u00fan su alcance.<\/p>\n<h2>Preguntas frecuentes<\/h2>\n<p><strong>\u00bfUn certificado 3.1 significa que un laboratorio independiente ensay\u00f3 la barra?<\/strong> No. El tipo 3.1 lo valida el propio representante de inspecci\u00f3n del fabricante, independiente del departamento de producci\u00f3n. La supervisi\u00f3n independiente se acuerda por separado, ya sea como inspecci\u00f3n por tercera parte en el pedido o como documento tipo 3.2 por acuerdo.<\/p>\n<p><strong>\u00bfPuede un certificado cubrir m\u00e1s de una colada?<\/strong> S\u00ed, cuando un pedido se env\u00eda a partir de varias coladas. El certificado indica por separado la composici\u00f3n qu\u00edmica de cada colada, y el marcado de los paquetes le indica qu\u00e9 barras pertenecen a cada colada.<\/p>\n<p><strong>\u00bfUn an\u00e1lisis de colada es lo mismo que un an\u00e1lisis de producto?<\/strong> No. ASTM B348 distingue el an\u00e1lisis del lingote o de la colada del an\u00e1lisis de comprobaci\u00f3n del producto entregado, lo que permite al comprador tomar muestras de la barra y compararlas con el certificado.<\/p>\n<p><strong>\u00bfQu\u00e9 ocurre si mi pedido cita tanto ASTM B348 como AMS 4928?<\/strong> Ambas pueden solicitarse juntas cuando los dos conjuntos de requisitos se indican por escrito, tal como se explica en detalle en <a href=\"https:\/\/beiyutitanium.com\/es\/titanium-order-astm-and-ams-together\/\">incluir ASTM y AMS en el mismo pedido de titanio<\/a>.<\/p>\n<p><strong>\u00bfEs seguro realizar este tipo de pedido a un proveedor chino?<\/strong> La cadena de pruebas anterior funciona independientemente del pa\u00eds, y la respuesta directa, incluido para qu\u00e9 es adecuado el titanio chino y para qu\u00e9 no, est\u00e1 en <a href=\"https:\/\/beiyutitanium.com\/es\/is-it-safe-to-buy-titanium-from-a-chinese-supplier\/\">es seguro comprar titanio a un proveedor chino<\/a>.<\/p>\n<h2>Solicite una oferta de barra B348<\/h2>\n<p>Env\u00ede la calidad, la designaci\u00f3n de la norma, el di\u00e1metro o la secci\u00f3n, la longitud, la cantidad, la condici\u00f3n de entrega y la redacci\u00f3n del certificado que necesita su sistema de calidad a <a href=\"https:\/\/beiyutitanium.com\/es\/contact\/\">la p\u00e1gina de solicitud de oferta de Beiyu<\/a>. Las ofertas se revisan por calidad, norma, dimensiones, tolerancia, estado de superficie y alcance de inspecci\u00f3n antes de fijar el precio.<\/p>\n<p>Revisado por <a href=\"https:\/\/beiyutitanium.com\/es\/penn-ma\/\">Penn Ma<\/a>, 15 a\u00f1os en la exportaci\u00f3n de productos de f\u00e1brica de titanio. \u00daltima revisi\u00f3n: 2026-08-20.<\/p>","protected":false},"excerpt":{"rendered":"<p>Beiyu Titanium supplies ASTM B348 titanium bar and billet in Grades 1, 2, 5, 7, 12 and 23, round sizes 1 to 500 mm diameter, and issues an EN 10204 type 3.1 certificate by order scope, tied to the heat number and pour number of the material actually shipped. What must a 3.1 certificate show [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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Durante m\u00e1s de 15 a\u00f1os de exportaci\u00f3n de titanio, ha aprendido a revisar personalmente cada l\u00ednea de especificaci\u00f3n, comprobando calidad, norma, dimensiones, tolerancia y alcance del certificado frente a la capacidad de la f\u00e1brica antes de emitir una oferta, en lugar de canalizar las consultas a trav\u00e9s de un departamento comercial. Lleg\u00f3 al suministro de titanio desde el otro lado de la transacci\u00f3n. Antes de dirigir el negocio internacional de Beiyu, trabaj\u00f3 en Koch (Koch-Glitsch) y particip\u00f3 directamente en la entrega de un proyecto petroqu\u00edmico de SABIC en Fujian, China. Ese trabajo se basaba en planes de inspecci\u00f3n y ensayo, certificaci\u00f3n de materiales y trazabilidad por n\u00famero de colada, coordinaci\u00f3n de inspecci\u00f3n por tercera parte y control de la documentaci\u00f3n y los expedientes del proyecto. Esas son las mismas cuatro cosas que un comprador de la industria de procesos o regulada exigir\u00e1 a un proveedor de titanio, y haber tenido que aplicarlas como cliente es la raz\u00f3n por la que aqu\u00ed se tratan como parte del suministro y no como documentaci\u00f3n elaborada posteriormente. Su trabajo diario abarca las cuestiones que este sitio est\u00e1 concebido para responder: elegir entre calidades de titanio comercialmente puro y aleado para un servicio corrosivo, interpretar un certificado de materiales frente a la norma solicitada y relacionar la designaci\u00f3n de un comprador (calidad ASTM, UNS, n\u00famero Werkstoff alem\u00e1n o c\u00f3digo NF franc\u00e9s) con el mismo metal en distintos mercados. 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