{"id":4505,"date":"2026-06-23T14:06:11","date_gmt":"2026-06-23T14:06:11","guid":{"rendered":"https:\/\/beiyutitanium.com\/grade-9-titanium-ti-3al-2-5v-uns-r56320\/"},"modified":"2026-08-18T04:47:18","modified_gmt":"2026-08-18T04:47:18","slug":"grade-9-titanium-ti-3al-2-5v-uns-r56320","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/es\/grade-9-titanium-ti-3al-2-5v-uns-r56320\/","title":{"rendered":"Titanio Grade 9 (Ti-3Al-2.5V, UNS R56320): propiedades, uso en tubos y cu\u00e1ndo elegirlo"},"content":{"rendered":"

<\/p>\n

El titanio Grade 9 es Ti-3Al-2.5V, UNS R56320, Werkstoff 3.7195. La resistencia m\u00ednima a la tracci\u00f3n es de aproximadamente 620 MPa, frente a 345 MPa para Grade 2 y 895 MPa para Grade 5. A esa resistencia sigue siendo conformable en fr\u00edo y soldable, por lo que es la calidad que m\u00e1s a menudo se estira para fabricar tubos.<\/p>\n

<\/p>\n

El titanio Grade 9 se sit\u00faa entre el Grade 2 comercialmente puro y el Ti-6Al-4V de Grade 5. Ofrece mayor resistencia que el titanio CP, manteniendo la conformabilidad y soldabilidad, por lo que es la calidad m\u00e1s utilizada para fabricar tubos por estirado. Esta p\u00e1gina explica qu\u00e9 es Grade 9, c\u00f3mo se comporta, c\u00f3mo se compara con Grade 2 y Grade 5, y cu\u00e1ndo especificarlo.<\/p>\n

<\/p>\n

Designaci\u00f3n europea:<\/strong> En el sistema EN y DIN, es Werkstoff 3.7195 (Ti-3Al-2.5V); en ASTM, es UNS R56320 (Grade 9).<\/p>\n

Qu\u00e9 es el titanio Grade 9<\/h2>\n

Grade 9 es la aleaci\u00f3n Ti-3Al-2.5V, UNS R56320: aproximadamente 3 por ciento de aluminio y 2,5 por ciento de vanadio, siendo el resto titanio. La peque\u00f1a adici\u00f3n de aleantes aumenta la resistencia por encima de las calidades CP sin alcanzar el contenido completo de aleantes de Grade 5, por lo que el metal sigue siendo apto para trabajo en fr\u00edo y soldadura. Beiyu Titanium suministra Grade 9 en tubo y barra conforme a las normas ASTM y AMS, con certificado de inspecci\u00f3n 3.1 seg\u00fan EN 10204 y trazabilidad por n\u00famero de colada en el pedido.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Campo<\/th>\nValor indicado en la gu\u00eda<\/th>\n<\/tr>\n<\/thead>\n
Aleaci\u00f3n<\/td>\nTi-3Al-2.5V<\/td>\n<\/tr>\n
UNS<\/td>\nR56320<\/td>\n<\/tr>\n
Aluminio<\/td>\n2.5 a 3.5 por ciento, seg\u00fan ASTM B265, tabla 1<\/td>\n<\/tr>\n
Vanadio<\/td>\n2.0 a 3.0 por ciento, seg\u00fan ASTM B265, tabla 1<\/td>\n<\/tr>\n
Resistencia a la tracci\u00f3n m\u00ednima, recocido<\/td>\n620 MPa (90 ksi), seg\u00fan ASTM B265, tabla 2<\/td>\n<\/tr>\n
L\u00edmite el\u00e1stico m\u00ednimo, recocido<\/td>\n483 MPa, seg\u00fan ASTM B265, tabla 2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Propiedades mec\u00e1nicas<\/h2>\n

En condici\u00f3n recocida, Grade 9 tiene una resistencia a la tracci\u00f3n m\u00ednima ASTM cercana a 620 MPa (90 ksi) y un l\u00edmite el\u00e1stico cercano a 500 MPa (70 ksi), con un alargamiento de alrededor del 15 por ciento. Esto representa aproximadamente el doble de la resistencia de Grade 2 con la misma baja densidad, una relaci\u00f3n que lo hace \u00fatil. Los valores reales se confirman para cada colada en el certificado de inspecci\u00f3n 3.1 seg\u00fan EN 10204.<\/p>\n\n\n\n\n\n\n\n\n
Propiedad<\/th>\nGrade 9 (Ti-3Al-2.5V, R56320)<\/th>\n<\/tr>\n<\/thead>\n
Resistencia a la tracci\u00f3n (m\u00edn., recocido)<\/td>\n620 MPa \/ 90 ksi<\/td>\n<\/tr>\n
L\u00edmite el\u00e1stico (m\u00edn., recocido)<\/td>\n500 MPa \/ 70 ksi<\/td>\n<\/tr>\n
Alargamiento (m\u00edn.)<\/td>\n15 por ciento<\/td>\n<\/tr>\n
Condici\u00f3n<\/td>\nrecocido; trabajado en fr\u00edo y con alivio de tensiones para tubo de mayor resistencia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Resistencia a la corrosi\u00f3n<\/h2>\n

Grade 9 conserva la mayor parte de la resistencia a la corrosi\u00f3n del titanio CP porque sigue siendo una aleaci\u00f3n rica en titanio que forma la misma pel\u00edcula protectora de \u00f3xido. Presenta buen comportamiento en agua de mar, \u00e1cidos oxidantes y cloruros. Para \u00e1cidos reductores o servicio con resquicios estrechos, Grade 7 o Grade 12 siguen siendo las mejores opciones frente a la corrosi\u00f3n; Grade 9 se especifica por su relaci\u00f3n resistencia-peso, no como mejora de corrosi\u00f3n.<\/p>\n

Grade 9 frente a Grade 2<\/h2>\n

Grade 2 es titanio comercialmente puro con una resistencia a la tracci\u00f3n m\u00ednima de 345 MPa, elegido para servicio corrosivo y conformado sencillo. Grade 9 aproximadamente duplica esa resistencia manteniendo la soldabilidad y conformabilidad. Especifique Grade 9 en lugar de Grade 2 cuando un tubo o pieza deba soportar una presi\u00f3n o carga que el titanio CP no pueda soportar, y Grade 2 cuando el requisito sea resistencia a la corrosi\u00f3n en lugar de resistencia mec\u00e1nica.<\/p>\n\n\n\n\n\n\n
En comparaci\u00f3n con<\/th>\nQu\u00e9 indica la gu\u00eda<\/th>\n<\/tr>\n<\/thead>\n
Grade 2<\/td>\nGrade 2 es titanio comercialmente puro con una resistencia a la tracci\u00f3n m\u00ednima de 345 MPa, elegido para servicio corrosivo y por su facilidad de conformado. Grade 9 aproximadamente duplica esa resistencia y conserva la soldabilidad y la conformabilidad<\/td>\n<\/tr>\n
Grade 5<\/td>\nGrade 5 (Ti-6Al-4V) alcanza unos 895 MPa, pero resulta m\u00e1s dif\u00edcil de conformar y soldar. Grade 9 sacrifica resistencia m\u00e1xima a cambio de poder estirarse en fr\u00edo para obtener tubos de pared delgada y doblarse sin agrietarse<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Grade 9 frente a Grade 5<\/h2>\n

Grade 5 (Ti-6Al-4V) alcanza aproximadamente 895 MPa, pero es m\u00e1s dif\u00edcil de conformar y soldar. Grade 9 sacrifica resistencia m\u00e1xima por la capacidad de ser estirado en fr\u00edo para fabricar tubo de pared fina y doblado sin agrietarse. Para piezas estructurales mecanizadas que requieren la m\u00e1xima resistencia, Grade 5 es la mejor opci\u00f3n; para tubo de alta resistencia y trabajo conformado, Grade 9 es la calidad pr\u00e1ctica.<\/p>\n

Aplicaciones t\u00edpicas<\/h2>\n

Grade 9 es la calidad principal para tubos de titanio de alta resistencia: l\u00edneas hidr\u00e1ulicas aeroespaciales, tubos de alta presi\u00f3n y aplicaciones deportivas como cuadros de bicicleta. Tambi\u00e9n se utiliza en barra cuando una pieza necesita m\u00e1s resistencia que el titanio CP, pero debe ser conformada o soldada. La mayor\u00eda de los compradores adquieren Grade 9 en forma de tubo, no de chapa gruesa.<\/p>\n\n\n\n\n\n\n\n
\u00c1rea de aplicaci\u00f3n<\/th>\nQu\u00e9 indica la gu\u00eda<\/th>\n<\/tr>\n<\/thead>\n
Tubos de titanio de alta resistencia<\/td>\nL\u00edneas hidr\u00e1ulicas aeroespaciales y tubo de alta presi\u00f3n; Grade 9 se describe aqu\u00ed como la opci\u00f3n de uso habitual<\/td>\n<\/tr>\n
Aplicaciones deportivas<\/td>\nComo los cuadros de bicicleta<\/td>\n<\/tr>\n
Barra<\/td>\nCuando una pieza necesita m\u00e1s resistencia que el titanio comercialmente puro, pero debe conformarse o soldarse<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Formas y normas<\/h2>\n

Beiyu suministra Grade 9 principalmente como tubo sin soldadura y soldado conforme a ASTM B338<\/a>, y como barra conforme a ASTM B348. El tubo aeroespacial suele especificarse seg\u00fan AMS 4943, 4944 o 4945. Combine la calidad con la forma en la solicitud: di\u00e1metro exterior, espesor de pared, longitud, proceso (sin soldadura o soldado) y condici\u00f3n. Consulte la gama de tubos y tuber\u00edas de titanio<\/a> para formas en stock.<\/p>\n\n\n\n\n\n\n\n
Forma<\/th>\nNorma que cita la gu\u00eda<\/th>\n<\/tr>\n<\/thead>\n
Tubo sin soldadura y soldado<\/td>\nASTM B338<\/td>\n<\/tr>\n
Barra<\/td>\nASTM B348<\/td>\n<\/tr>\n
Tubo aeroespacial<\/td>\nA menudo especificado seg\u00fan AMS 4943, 4944 o 4945<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Coste y c\u00f3mo especificarlo<\/h2>\n

Grade 9 cuesta m\u00e1s que Grade 2 debido a la adici\u00f3n de aleantes y al procesamiento del tubo, y menos que la barra aeroespacial Ti-6Al-4V utilizada para piezas forjadas. Para obtener una oferta precisa, indique la calidad, la norma, el di\u00e1metro exterior y el espesor de pared, la longitud, la condici\u00f3n y el alcance del certificado. El material se suministra con certificado de inspecci\u00f3n 3.1 seg\u00fan EN 10204 y trazabilidad por n\u00famero de colada seg\u00fan el alcance del pedido.<\/p>\n

Preguntas frecuentes<\/h2>\n

\u00bfGrade 9 es lo mismo que Ti-3Al-2.5V?<\/strong> S\u00ed. Grade 9, Ti-3Al-2.5V y UNS R56320 son la misma aleaci\u00f3n.<\/p>\n

\u00bfGrade 9 es m\u00e1s resistente que Grade 2?<\/strong> S\u00ed, aproximadamente el doble de resistencia a la tracci\u00f3n en condici\u00f3n recocida, manteniendo la conformabilidad y soldabilidad.<\/p>\n

\u00bfSe puede soldar Grade 9?<\/strong> S\u00ed, con la protecci\u00f3n de gas inerte que el titanio siempre requiere. Esta soldabilidad es una raz\u00f3n por la que se utiliza para tubo.<\/p>\n

\u00bfQu\u00e9 norma cubre el tubo Grade 9?<\/strong> ASTM B338 cubre los tubos y tuber\u00edas de titanio, incluido Grade 9; el tubo aeroespacial suele especificarse seg\u00fan AMS 4943, 4944 o 4945.<\/p>\n

Beiyu Titanium es la marca internacional de exportaci\u00f3n de titanio de Jiaxing Beiyu New Materials Technology Co., Ltd., un proveedor y exportador de titanio & con respaldo de producci\u00f3n directa en Baoji, Shaanxi. Para una oferta de tubo o barra de titanio Grade 9 con un certificado de inspecci\u00f3n 3.1 seg\u00fan EN 10204, env\u00ede el tama\u00f1o y la norma a penn@beiyutitanium.com. Para comparar primero las calidades, consulte la gu\u00eda comparativa de calidades de titanio<\/a>.<\/p>\n

<\/p>\n

D\u00f3nde se sit\u00faa Grade 9 y qu\u00e9 tiene que indicar todav\u00eda el pedido<\/h2>\n

Grade 9 se elige cuando el titanio comercialmente puro no tiene suficiente resistencia y la aleaci\u00f3n completa supera las necesidades de la pieza. Esa decisi\u00f3n determina el material. No determina los campos que deciden la aceptaci\u00f3n del art\u00edculo entregado.<\/p>\n\n\n\n\n\n\n\n
Determinado por la calidad<\/th>\nTodav\u00eda por determinar en el pedido<\/th>\n<\/tr>\n<\/thead>\n
Intervalo de composici\u00f3n y propiedades mec\u00e1nicas m\u00ednimas<\/td>\nForma del producto y dimensi\u00f3n determinante con tolerancia<\/td>\n<\/tr>\n
Comportamiento en el servicio previsto<\/td>\nEstado de entrega, indicado por separado del acabado superficial<\/td>\n<\/tr>\n
A qu\u00e9 cadena de especificaciones pertenece el n\u00famero UNS<\/td>\nAlcance del examen y su clase de aceptaci\u00f3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00f3mo se obtienen los valores que sit\u00faan una colada dentro del intervalo<\/h2>\n\n\n\n\n\n\n\n\n
Qu\u00e9 se comunica<\/th>\nM\u00e9todo al que hace referencia la especificaci\u00f3n<\/th>\nQu\u00e9 aclara indicarlo<\/th>\n<\/tr>\n<\/thead>\n
Composici\u00f3n de la aleaci\u00f3n<\/td>\nASTM E539 y ASTM E2371<\/td>\nLas v\u00edas espectrom\u00e9tricas indicadas en los documentos de referencia<\/td>\n<\/tr>\n
Ox\u00edgeno y nitr\u00f3geno<\/td>\nASTM E1409<\/td>\nElementos intersticiales que modifican las propiedades dentro del intervalo<\/td>\n<\/tr>\n
Hidr\u00f3geno<\/td>\nASTM E1447<\/td>\nDeterminado mediante un m\u00e9todo identificado<\/td>\n<\/tr>\n
Propiedades de tracci\u00f3n<\/td>\nASTM E8<\/td>\nC\u00f3mo se obtuvieron los valores de resistencia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Indicar un m\u00e9todo aclara c\u00f3mo se obtuvo un valor. No a\u00f1ade un examen que el pedido no haya solicitado, ni hace que un an\u00e1lisis de colada y un an\u00e1lisis posterior del producto sean intercambiables.<\/p>\n

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

Grade 9 (Ti-3Al-2.5V, UNS R56320) contiene de 2.5 a 3.5% de aluminio y de 2.0 a 3.0% de vanadio, seg\u00fan ASTM B265<\/a>, Tabla 1. En estado recocido, los m\u00ednimos son 620 MPa (90 ksi) de resistencia a la tracci\u00f3n y 483 MPa de l\u00edmite el\u00e1stico, seg\u00fan ASTM B265, Tabla 2, aproximadamente un 80% por encima del m\u00ednimo de 345 MPa de Grade 2.<\/p>\n

The alloy’s main product form is tube: ASTM B338<\/a>, la especificaci\u00f3n para tubos de titanio sin soldadura y soldados para condensadores e intercambiadores de calor, incluye Grade 9 junto con las calidades sin alear. Su alargamiento m\u00ednimo del 15% en estado recocido (ASTM B265, Tabla 2) deja suficiente capacidad de trabajo en fr\u00edo para reducir y curvar tubos.<\/p>\n

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

Grade 9 titanium is Ti-3Al-2.5V, UNS R56320, Werkstoff 3.7195. Minimum tensile strength is about 620 MPa, against 345 MPa for Grade 2 and 895 MPa for Grade 5. It stays cold formable and weldable at that strength, which is why it is the grade most often drawn into tube. Grade 9 titanium sits between commercially 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