{"id":4780,"date":"2026-07-26T13:19:17","date_gmt":"2026-07-26T13:19:17","guid":{"rendered":"https:\/\/beiyutitanium.com\/titanium-werkstoffnummer-astm-cross-reference\/"},"modified":"2026-08-18T04:47:18","modified_gmt":"2026-08-18T04:47:18","slug":"titanium-werkstoffnummer-astm-cross-reference","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/es\/titanium-werkstoffnummer-astm-cross-reference\/","title":{"rendered":"N\u00fameros de material de titanio: referencia cruzada de Werkstoffnummer a ASTM"},"content":{"rendered":"

Los planos alemanes y muchos europeos identifican el titanio mediante Werkstoffnummer en lugar de calidad ASTM. Las correspondencias habituales son 3.7025 = Grade 1, 3.7035 = Grade 2, 3.7055 = Grade 3, 3.7065 = Grade 4, 3.7165 = Grade 5 (Ti-6Al-4V), 3.7235 = Grade 7, 3.7195 = Grade 9 y 3.7105 = Grade 12. La tabla siguiente a\u00f1ade n\u00fameros UNS y las normas de producto DIN que estos planos suelen citar.<\/p>\n

Tabla de Werkstoffnummer de titanio a calidad ASTM<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Designaci\u00f3n alemana<\/th>\nCalidad ASTM<\/th>\nUNS<\/th>\nMaterial<\/th>\nServicio t\u00edpico<\/th>\n<\/tr>\n<\/thead>\n
3.7025<\/td>\nGrade 1<\/td>\nR50250<\/td>\nTitanio sin aleaci\u00f3n, el m\u00e1s blando y m\u00e1s conformable<\/td>\nEmbutici\u00f3n profunda, revestimiento, recubrimientos<\/td>\n<\/tr>\n
3.7035<\/td>\nGrade 2<\/td>\nR50400<\/td>\nTitanio sin aleaci\u00f3n, la pureza de uso general<\/td>\nEquipos de proceso qu\u00edmico, servicio con agua de mar<\/td>\n<\/tr>\n
3.7055<\/td>\nGrade 3<\/td>\nR50550<\/td>\nTitanio sin aleaci\u00f3n, mayor resistencia<\/td>\nEnvolventes a presi\u00f3n donde la resistencia de Grade 2 no es suficiente<\/td>\n<\/tr>\n
3.7065<\/td>\nGrade 4<\/td>\nR50700<\/td>\nTitanio sin aleaci\u00f3n, m\u00e1xima resistencia CP<\/td>\nAccesorios, detalles de estructura aeron\u00e1utica<\/td>\n<\/tr>\n
3.7165<\/td>\nGrade 5<\/td>\nR56400<\/td>\nTi-6Al-4V<\/td>\nPiezas mecanizadas y estructurales<\/td>\n<\/tr>\n
WL 3.7164<\/td>\nFamilia Grade 5<\/td>\nR56400<\/td>\nTi-6Al-4V conforme a una Werkstoff-Leistungsblatt aeroespacial alemana; no es un segundo DIN Werkstoff-Nummer<\/td>\nPiezas solicitadas conforme a la ficha de materiales aeroespaciales citada<\/td>\n<\/tr>\n
3.7235<\/td>\nGrade 7<\/td>\nR52400<\/td>\nTitanio con 0.12 a 0.25 por ciento de paladio<\/td>\n\u00c1cidos reductores, cloruro caliente, servicio con corrosi\u00f3n por resquicio<\/td>\n<\/tr>\n
3.7195<\/td>\nGrade 9<\/td>\nR56320<\/td>\nTi-3Al-2.5V<\/td>\nTubos y l\u00edneas hidr\u00e1ulicas que requieren mayor resistencia que las calidades CP<\/td>\n<\/tr>\n
3.7105<\/td>\nGrade 12<\/td>\nR53400<\/td>\nTi-0.3Mo-0.8Ni<\/td>\nSalmuera caliente y equipos de proceso con cloruros<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Estas son correspondencias de trabajo, no especificaciones id\u00e9nticas palabra por palabra. Los rangos de composici\u00f3n qu\u00edmica y las reglas de ensayo de los documentos DIN difieren en detalle de sus equivalentes ASTM, por lo que siempre prevalece la propia norma del plano. Cuando ofrecemos conforme a un plano con Werkstoffnummer, la conciliaci\u00f3n se realiza en el certificado de materiales, donde la composici\u00f3n qu\u00edmica y los valores mec\u00e1nicos declarados pueden comprobarse frente a ambos documentos antes de liberar el material.<\/p>\n

Para buscar directamente una calidad por n\u00famero, UNS, Werkstoffnummer o norma, utilice la herramienta de referencias cruzadas de calidades de titanio<\/a>. El resto de esta p\u00e1gina trata sobre lo que solicita espec\u00edficamente un plano alem\u00e1n y c\u00f3mo pedir productos de f\u00e1brica ASTM conforme a \u00e9l.<\/p>\n

\u00bfC\u00f3mo especifican el titanio los planos alemanes?<\/h2>\n

Una especificaci\u00f3n alemana de titanio suele tener tres partes: el Werkstoff-Nummer del propio material, una norma de producto DIN para la forma y un requisito de documento de inspecci\u00f3n. La composici\u00f3n figura en DIN 17850 para titanio sin alear y DIN 17851 para aleaciones de titanio. Las normas de producto incluyen DIN 17860 para chapa gruesa, chapa fina y fleje, DIN 17862 para barras y DIN 17864 para piezas forjadas. Los planos antiguos pueden citar la norma retirada DIN 17861 para tubos sin soldadura; en ese caso, el proceso de producci\u00f3n actual y la norma de aceptaci\u00f3n deben acordarse antes de emitir la oferta. Si se requiere EN 10204 3.1 u otro tipo de documento para Barra ASTM B348<\/a>, chapa gruesa y chapa fina ASTM B265<\/a> o piezas forjadas ASTM B381<\/a>, ind\u00edquelo en la solicitud de oferta y el pedido; Beiyu confirma el alcance de la declaraci\u00f3n de resultados y la validaci\u00f3n en la oferta.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Una designaci\u00f3n alemana de titanio suele tener tres partes: el Werkstoffnummer del propio material, una norma de producto DIN para la forma y un requisito de certificado.<\/caption>\n
Parte de una designaci\u00f3n alemana de titanio<\/th>\nNorma que cita la gu\u00eda<\/th>\n<\/tr>\n<\/thead>\n
Composici\u00f3n, titanio sin alear<\/td>\nDIN 17850<\/td>\n<\/tr>\n
Composici\u00f3n, aleaciones de titanio<\/td>\nDIN 17851<\/td>\n<\/tr>\n
Chapa gruesa, chapa fina y fleje<\/td>\nDIN 17860<\/td>\n<\/tr>\n
Barra<\/td>\nDIN 17862<\/td>\n<\/tr>\n
Piezas forjadas<\/td>\nDIN 17864<\/td>\n<\/tr>\n
Tubo sin soldadura en planos antiguos<\/td>\nDIN 17861<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00bfCu\u00e1l es la diferencia entre 3.7164 y 3.7165?<\/h2>\n

Ambas designaciones pueden aparecer con Ti-6Al-4V, pero no son dos Werkstoffnummern intercambiables. El DIN Werkstoff-Nummer es 3.7165. WL 3.7164 es una designaci\u00f3n Werkstoff-Leistungsblatt utilizada en documentaci\u00f3n aeroespacial alemana. Si un plano cita WL 3.7164 y su especificaci\u00f3n aeroespacial asociada, emita la oferta conforme a ese requisito completo en lugar de sustituirlo por Grade 5 comercial solo por el n\u00famero. Si cita 3.7165 con una norma de producto DIN, coteje esa norma con el producto de f\u00e1brica ASTM Grade 5 propuesto y el documento de inspecci\u00f3n requerido antes de emitir la oferta.<\/p>\n\n\n\n\n\n\n
3.7165 y WL 3.7164 pueden aparecer con Ti-6Al-4V, pero pertenecen a sistemas de designaci\u00f3n alemanes diferentes.<\/caption>\n
Designaci\u00f3n alemana<\/th>\nTipo de designaci\u00f3n y significado para el pedido<\/th>\n<\/tr>\n<\/thead>\n
WL 3.7164<\/td>\nDesignaci\u00f3n Werkstoff-Leistungsblatt utilizada en documentaci\u00f3n aeroespacial alemana; realice el pedido conforme a la ficha completa citada y los requisitos relacionados<\/td>\n<\/tr>\n
3.7165<\/td>\nDIN Werkstoff-Nummer para Ti-6Al-4V; coteje la norma de producto DIN indicada con la v\u00eda ASTM propuesta<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00bfQu\u00e9 n\u00famero corresponde a Grade 23, la versi\u00f3n ELI?<\/h2>\n

Ti-6Al-4V ELI no tiene un Werkstoffnummer independiente de uso habitual. Los planos alemanes normalmente indican 3.7165 ELI o citan directamente la norma ASTM. Tenga en cuenta que el n\u00famero UNS depende entonces de la norma solicitada: la barra ASTM B348, la chapa gruesa ASTM B265 y el alambre ASTM B863 designan Grade 23 como UNS R56407, mientras que la especificaci\u00f3n de implantes quir\u00fargicos ASTM F136 utiliza UNS R56401. La distinci\u00f3n, y cu\u00e1ndo merece la pena pagar por cada versi\u00f3n, se explica en nuestra comparaci\u00f3n entre Grade 5 y Grade 23<\/a>.<\/p>\n\n\n\n\n\n\n\n\n
Ti-6Al-4V ELI no tiene un Werkstoffnummer independiente de uso habitual. Los planos alemanes suelen indicar 3.7165 ELI o citar directamente la norma ASTM, y el n\u00famero UNS depende entonces de la norma pedida.<\/caption>\n
Norma solicitada<\/th>\nDesignaci\u00f3n UNS para Grade 23<\/th>\n<\/tr>\n<\/thead>\n
Barra ASTM B348<\/td>\nR56407<\/td>\n<\/tr>\n
Chapa gruesa ASTM B265<\/td>\nR56407<\/td>\n<\/tr>\n
Alambre ASTM B863<\/td>\nR56407<\/td>\n<\/tr>\n
ASTM F136, especificaci\u00f3n para implantes quir\u00fargicos<\/td>\nR56401<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00f3mo pedir producto de f\u00e1brica ASTM conforme a un plano Werkstoffnummer<\/h2>\n

Muchas f\u00e1bricas de titanio fuera de Europa trabajan principalmente con especificaciones ASTM, por lo que un comprador con un plano DIN puede proponer una calidad ASTM correspondiente. Conviene que la solicitud de oferta indique la designaci\u00f3n alemana y la norma DIN exactamente como aparecen, la calidad ASTM propuesta, la forma del producto, dimensiones y tolerancias, estado y acabado superficial requeridos, y requisitos de documento de inspecci\u00f3n y trazabilidad por n\u00famero de colada. Comparamos los dos marcos de composici\u00f3n qu\u00edmica y propiedades mec\u00e1nicas en la fase de oferta y se\u00f1alamos cualquier requisito m\u00e1s estricto o adicional antes de aceptar una sustituci\u00f3n. Una descripci\u00f3n completa de las propias calidades se encuentra en la gu\u00eda comparativa de calidades de titanio<\/a>.<\/p>\n

<\/p>\n

Por qu\u00e9 una correspondencia de n\u00fameros todav\u00eda no es una base de aceptaci\u00f3n<\/h2>\n

Una tabla de referencias cruzadas relaciona designaciones. No transfiere los requisitos de aceptaci\u00f3n de un sistema al otro, y un pedido que cita solo el n\u00famero equivalente deja sin indicar el documento aplicable.<\/p>\n\n\n\n\n\n\n\n
Qu\u00e9 aporta un n\u00famero equivalente<\/th>\nQu\u00e9 no aporta<\/th>\n<\/tr>\n<\/thead>\n
La designaci\u00f3n equivalente en el otro sistema<\/td>\nLos requisitos de la forma del producto que la acompa\u00f1an<\/td>\n<\/tr>\n
Una forma de interpretar un plano extranjero<\/td>\nLa tabla de tolerancias que se aplica a la secci\u00f3n pedida<\/td>\n<\/tr>\n
Una referencia com\u00fan en la correspondencia<\/td>\nEl alcance de la informaci\u00f3n presentada en el certificado<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Qu\u00e9 incluir en el pedido junto con la referencia cruzada<\/h2>\n\n\n\n\n\n\n\n\n
L\u00ednea<\/th>\nPor qu\u00e9 la referencia cruzada no lo cubre<\/th>\n<\/tr>\n<\/thead>\n
Norma de producto aplicable<\/td>\nLa aceptaci\u00f3n sigue la norma indicada, no la designaci\u00f3n equivalente<\/td>\n<\/tr>\n
Calidad con su n\u00famero UNS<\/td>\nEl n\u00famero sigue la cadena de especificaciones que indica el pedido<\/td>\n<\/tr>\n
Dimensi\u00f3n determinante con tolerancia<\/td>\nLas indicaciones dimensionales no forman parte de una equivalencia de designaciones<\/td>\n<\/tr>\n
Certificado y alcance de la informaci\u00f3n que se debe presentar<\/td>\nCertificado de inspecci\u00f3n 3.1 seg\u00fan EN 10204 con trazabilidad por n\u00famero de colada, con alcance definido por el pedido<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Una referencia cruzada es una ayuda para la traducci\u00f3n. El pedido todav\u00eda tiene que indicar el documento conforme al cual se juzgar\u00e1 la aceptaci\u00f3n.<\/p>\n

Detalles de especificaci\u00f3n con fuentes<\/h2>\n

DIN’s own document set anchors this table: composition sits in DIN 17850 for unalloyed titanium and DIN 17851 for alloys, the form standards run DIN 17860 for flat product, 17862 for bar and 17864 for forgings, and EN 10204’s type 3.1 certificate succeeded the DIN 50049 3.1B line older German drawings carried. The eight common correspondences listed above, 3.7035 to Grade 2 (UNS R50400) and 3.7165 to Grade 5 (UNS R56400) among them, are working equivalences whose chemistry brackets differ in detail, which is why the drawing’s own standard always governs the order.<\/p>\n

Beiyu Titanium’s quotation practice against a Werkstoffnummer drawing is to state 2 designations side by side, the ASTM grade with its UNS number next to the 3.7xxx call-out, and to reconcile the chemistry brackets on the EN 10204 3.1 certificate before release, the same dual-designation review Beiyu runs when a heat starts life under Chinese GB\/T 3620.1 paperwork. Penn Ma has reviewed these cross-standard call-outs through 15 years of titanium export at Beiyu, and the mill envelope behind a Beiyu quotation covers B348 bar from 1 to 500 mm diameter and B265 flat product to 70 mm thick, the two forms German process-equipment drawings most often specify.<\/p>\n

<\/p>","protected":false},"excerpt":{"rendered":"

German and many European drawings identify titanium by Werkstoffnummer rather than ASTM grade. The common mappings are 3.7025 = Grade 1, 3.7035 = Grade 2, 3.7055 = Grade 3, 3.7065 = Grade 4, 3.7165 = Grade 5 (Ti-6Al-4V), 3.7235 = Grade 7, 3.7195 = Grade 9 and 3.7105 = Grade 12. The table below adds 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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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