Grade 7 Ti-0.15Pd Alloy Pipe Manufacturer
As a leading supplier of titanium and titanium alloy tubes in China, Daxun provides high-performance titanium tubes to the world.
- Titanium tube Grade：Grado 7 - UNS R52400
- Titanium tube types：Seamless Ti tube, Ti welded tube, forged Ti tube
- Titanium tube density The density of grade 7 titanium is approximately 4.51 g/cm3
- Standards：ASTM B338、ASTM B861、ASTM B862
- Softest Ti,High ductility, Very corrosion resistant, good cold formability
————Daxun produces titanium tubes in China to meet the diverse and ——demanding needs of customers！
Grade 7 Titanium Alloy Pipe Manufacturer - Daxun Alloy
Provide High Quality Grade 7 Titanium Pipe to Customers Around The World
Grade 7 titanium pipe is a palladium-enhanced commercially pure titanium alloy (Ti-0.12Pd), engineered for ultimate corrosion resistance in the most aggressive environments. It combines the inherent formability and weldability of pure titanium with exceptional durability against reducing acids and chlorides. Its density (4.51 g/cm³) is approximately 60% that of steel, while offering unparalleled defense against chemical attack, pitting, and crevice corrosion. The alloy excels in harsh conditions—including hot reducing acids, chloride-rich solutions, and sour gas environments—maintaining integrity where other materials fail.
- Palladium’s electrochemical role: Pd acts as a cathodic catalyst, promoting rapid repassivation of the titanium oxide layer when damaged. This self-healing mechanism prevents localized corrosion (pitting/crevice) in reducing acids like HCl, H₂SO₄, and wet chlorine environments where conventional titanium fails.
- Synergy with titanium matrix: While retaining pure titanium’s inherent ductility and weldability, the Pd dopant creates a barrier against hydrogen embrittlement and stress corrosion cracking (SCC), enabling reliable performance in chemically aggressive media
Where is Grade 7 titanium pipe used?
In chemical processing plants, it’s the material of choice for reactor vessels, heat exchangers, and piping systems handling sulfuric acid, hydrochloric acid, and chlorinated organics due to its inertness. Marine and offshore industries rely on it for critical seawater systems, desalination equipment, and subsea components, leveraging its unmatched resistance to saltwater corrosion and biofouling. Oil and gas operations employ it in downhole tubing, Christmas tree components, and sour gas pipelines where high-pressure H₂S and CO₂ environments cause rapid degradation of standard alloys. Pharmaceutical and biotech facilities use it for ultra-pure water systems and chemical delivery lines, ensuring zero contamination. Additionally, nuclear waste treatment y pollution control systems utilize it for scrubbers and condensers exposed to corrosive flue gases and acidic effluents, combining longevity with absolute reliability.
Key Performance:
Strength-Ductility Balance:
- Tensile Strength: 483 MPa (annealed state) – Matches Grade 2 but with superior corrosion resistance.
- Elongation: ≥20% – Exceptional ductility for cold forming and high fatigue resistance.
- Density: 4.51 g/cm³ – 60% lighter than steel, ideal for weight-sensitive applications.
Corrosion Resistance:
- Palladium-enhanced performance: Resists pitting/crevice corrosion in seawater, chlorides, reducing acids (HCl, H₂SO₄), and sour gas (H₂S).
- Outperforms Grade 2/9: Immune to corrosion in oxidizing media and aggressive chemical environments where stainless steel fails.
- Galvanic compatibility: No risk of galvanic corrosion when paired with dissimilar metals.
Weldability & Processability:
- Welding: Excellent TIG/laser weldability – no post-weld cracking due to Pd stabilization.
- Forming: Superior cold workability vs. Grade 5; easily formed into tubes, sheets, and complex shapes.
- Heat Treatment: Stress-relieved at 480–595°C to optimize corrosion resistance and ductility.
Application Advantages:
- Procesamiento químico: Reactors, piping, heat exchangers – handles hot reducing acids, chlorides, and sour gas.
- Marine: Desalination plants, seawater cooling systems – lifetime immunity to saltwater corrosion.
- Aerospace: Hydraulic fluid lines – lightweight durability in corrosive fuel/hydraulic environments.
- Industrial: Pollution control scrubbers, geothermal systems – withstands high-temperature acidic vapors.
- Medical: Implant components – biocompatible with enhanced corrosion resistance in bodily fluids.
Datos
- Parámetro
- Propiedades físicas
- Propiedades mecánicas
| Elemento | Símbolo | Composition Range (wt.%) |
|---|---|---|
| Titanio | Ti | Balance (>99%) |
| Palladium | Pd | 0.12–0.25% |
| Hierro | Fe | ≤0.30% |
| Oxígeno | O | ≤0.25% |
| Carbono | C | ≤0.08% |
| Nitrógeno | N | ≤0.03% |
| Hidrógeno | H | ≤0.015% |
| Other Elements | Each | ≤0.40% (single element) |
Key Characteristics
- Strength-to-Weight Ratio: Comparable to pure titanium (Grades 1–4) but lower than Ti-6Al-4V (Grade 5) or Ti-3Al-2.5V (Grade 9). Optimized for corrosion resistance over mechanical strength.
- Corrosion Resistance: Unmatched in reducing acids (e.g., HCl, H₂SO₄), chlorides, and crevice corrosion environments. Outperforms all commercially pure grades (1–4) and Grade 5/9 in aggressive chemical media due to palladium (Pd) stabilization.
- Biocompatibility: Fully non-toxic and MRI-compatible. Suitable for surgical instruments and chemical processing equipment, though not used for permanent implants (Grade 23 preferred).
- Formability: Retains excellent cold formability, weldability, and machinability of pure titanium. Significantly easier to fabricate than Grade 5/9, enabling complex geometries without specialized tooling.
| Propiedad | Value (Imperial) | Value (Metric) |
|---|---|---|
| Densidad | 0.163 lb/in³ | 4.51 g/cm³ |
| Punto de fusión | 3,000–3,050°F | 1,650–1,680°C |
| Conductividad térmica | 9.5 Btu/(hr·ft·°F) | 16.4 W/(m·K) |
| Coefficient of Thermal Expansion | 4.8 × 10⁻⁶/°F | 8.6 × 10⁻⁶/K |
| Resistividad eléctrica | 1.78 × 10⁻⁶ Ω·cm | 1.78 μΩ·m |
| Propiedad | Value (Imperial) | Value (Metric) |
|---|---|---|
| Resistencia a la tracción | 50,000–65,000 psi | 345–450 MPa |
| Yield Strength | 30,000–45,000 psi | 207–310 MPa |
| Elongation | 20–30% | 20–30% |
| Dureza (Brinell) | 120–160 HB | 120–160 HB |
| Módulo de elasticidad | 14.9–16.0 × 10⁶ psi | 103–110 GPa |
Elija Daxun para que su proyecto despegue.
Advanced Production:Titanium seamless pipe
- Titanium seamless tubes are hot rolled or hot extruded, straightened, processed with inner and outer diameters, and surface etched. Tubes can be supplied in heat-treated or non-heat-treated forms. Daxun has 100% ultrasonic testing capabilities. Hot rolled tube/hot extruded titanium seamless tube: outer diameter 1.0 mm to 325 mm, wall thickness 0.3 mm to 50 mm, length up to 12000 mm. Cold rolled titanium seamless tube: cold processed tubes are supplied after heat treatment, surface etching, hydrostatic test or ultrasonic inspection according to the requirements of the manufacturing specification. Outer diameter 6 mm to 102 mm, wall thickness 0.5 mm to 20 mm, length up to 9000 mm.
- (The above is agreed upon by the manufacturer and the customer based on the specific situation)
Grade 7 Titanium Tube Features
Grade 7 Titanium Tube is the softest form of titanium and has the highest ductility. It has good cold forming characteristics and offers excellent corrosion resistance. It also has excellent welding properties and high impact toughness.
- Softest Titanium
- Highest Ductility
- Excellent Corrosion Resistance
- Good Cold Formability
Advanced Production： Titanium Welded Tube
Titanium Welded Tube: Diameter ranges from 6.0mm to 1219mm, wall thickness ranges from 0.3mm to 30mm (depending on diameter), length up to 25000mm, made from Gr1 titanium tube. Welded tubes are made from flat rolled billets (tube blanks) on electric tube welding machines using automatic tungsten inert gas (argon) welding, and heat treated on the mill line. Mechanical tests, geometric measurements, 100% ultrasonic and eddy current testing, pneumatic or hydrostatic testing are performed before the finished titanium welded tubes are packaged according to customer specifications. Manufacturing technology as well as inspection and testing equipment ensure that thin wall welded tubes meet ASTM B 338 and ASME SB 338 specifications.
Informes de las pruebas
The test reports we provide include: Factory test certificate for Grade 7 titanium welded pipe and Grade 7 titanium seamless pipe, EN 10204 3.1, Chemical report, Mechanical report, PMI test report, Visual inspection report, Third-party inspection report, NABL approved laboratory report, Destructive test report, Non-destructive test report. (Daxun will provide according to customer’s requirements)
Applications and standards
Titanium Grade 7 Pipes and Tubing are extensively applied in extremely corrosive conditions in the below Industries：
- Chemical processing parts such as heat exchangers, reaction vessels, evaporators and delivery pipelines, automotive exhaust, oil and gas industry, petrochemical plants, chemical plants, industrial machinery, power industry, paper and pulp industry, food processing industry, refineries, pharmaceutical and food processing equipment, etc.
- Specifications : ASTM B861, B862, B338 / ASME SB861, SB862, SB338
Standard : ASTM, ASME and API
Calidad, entrega, inspección
Daxun performs several quality assurance tests, these tests include flattening test, flaring test, ultrasonic flaw detection test, pitting and resistance test, mechanical test, hardness test, material positive identification, expansion test, etc. All these tests ensure that the Grade 7 Titanium Welded Pipe and Grade 7 Titanium Seamless Pipe materials are suitable for the required application. During the production process, we measure the diameter, thickness and surface of the products. Our standard delivery time is 5-7 days and the delivery time for special size products is 15-20 days.
- Nuestro plazo de entrega se ajusta estrictamente a lo estipulado en el contrato.
- Apoyar a las agencias externas del cliente para que vayan a la fábrica a inspeccionar
- Muestras gratuitas para las pruebas de los clientes
- Apoyo a la inspección in situ o por vídeo en fábrica
Embalaje
Daxun Alloy garantiza la mejor calidad de embalaje, ya que desempeña un papel importante en el transporte internacional de mercancías, donde las mercancías pasan por varios canales para llegar al destino final, por lo que prestamos especial atención al embalaje. Embalamos nuestras mercancías de muchas maneras dependiendo del producto. Embalamos nuestros productos de muchas maneras, tales como:
- Cajas y cajones
- Retráctil
- Palés de madera
- Cajas de madera
Asistencia técnica
Si necesita asistencia técnica adicional, nuestro metalúrgico residente y nuestro personal experto estarán encantados de ayudarle. Además, Daxun cuenta con un laboratorio de pruebas certificado, una primicia en la industria de inventarios multimetal y plástico. Esto, en nuestra opinión, demuestra nuestra inquebrantable dedicación a la calidad y nuestra filosofía como proveedor de servicios completos.
Daxun Grade 7 Titanium TUBE Let your brand improve rapidly
- Galería
Grade 7 titanium tube form (4)
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Titanium seamless tubes are made by piercing and drawing solid titanium bars, and the hollow part of the tube is made by piercing or hot extrusion. Titanium seamless tubes are ideal for very large diameter to wall thickness ratios and have very good external dimensional tolerances.
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Titanium welded pipe is a tubular product made of strip titanium that is roll formed and fusion welded along the longitudinal seam. The welding process used by Daxun Alloy does not use any filler metal during the welding process.
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Titanium square tubes are drawn from round tubes or round tube billets and can be formed into right angles or rounded corners. They can also be cold extruded, which is efficient and low cost. The only disadvantage is that the tolerance will gradually increase.
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Tubular products are welded and then re-drawn to final size. Welding and drawing is ideal for producing thick walled, large diameter tubes that cannot be welded directly to size but still offer cost savings over seamless tubes. All Daxun welded and drawn tubes are bright annealed.
Proyectos y productos recientes
Productos relacionados (8)
El grado de aleación de titanio que necesita depende del proyecto en el que esté trabajando, ya que cada grado tiene ventajas diferentes.
Todos los grados de aleación de titanio son extremadamente fuertes y resistentes a la corrosión, lo que significa que seguirán funcionando bien en las condiciones más duras.
Los grados superiores de aleación de titanio (5-12) son aleaciones diseñadas para prestaciones específicas. Por ejemplo, la aleación de titanio de grado 12 tiene una excelente resistencia al calor, por lo que es una opción perfecta para intercambiadores de calor de carcasa y tubos, tuberías hidráulicas y equipos de la industria química.
Los grados 1-4 son aleaciones de titanio puro y son la elección perfecta si necesita un material soldable y dúctil para sistemas de tuberías y conductos. Los grados inferiores se utilizan en la industria naval e industrial.
Si está iniciando un proyecto y no está seguro de qué grado de aleación de titanio es el más adecuado para usted, póngase en contacto con nosotros hoy mismo; estaremos encantados de ayudarle.
En DAXUN, ofrecemos una amplia gama de grados de aleación de titanio, desde el grado 1 hasta el grado 12.
Los grados 1-4 son titanio puro, mientras que los grados superiores son aleaciones.
Los grados de aleación son populares por su elevada relación resistencia-peso.
El grado de aleación de titanio más utilizado que encontramos es el grado 5. Aunque sigue teniendo un alto contenido en titanio, este grado es uno de los más fiables porque puede soportar temperaturas de hasta 600 °F y soportar condiciones extremas.
Las calidades superiores son las preferidas por industrias como la aeroespacial y la naval por su resistencia al desgaste y a la corrosión.
Por el contrario, las calidades inferiores se utilizan principalmente para soldar debido a su menor resistencia.
To learn more about the differences between different grades of titanium alloy, call +86 13382898899 today to speak directly with our experts.
Aunque el grado de titanio aumenta ligeramente el coste, el coste total viene determinado principalmente por la forma del titanio que necesite.
At DAXUN, we offer a wide range of titanium products, including tubes, tubes, coils and bars. The length, width and quantity of each item you require will affect the amount you pay at checkout.
Por desgracia, es difícil dar un precio en línea sin saber mucho sobre su proyecto y para qué se utilizará el titanio.
Afortunadamente, nuestro equipo de expertos está siempre a su disposición para ayudarle y asesorarle en sus necesidades de titanio. Enviando un correo electrónico a [email protected], podremos responderle con algunos consejos y un presupuesto preciso.
Asegúrese de incluir toda la información posible sobre el grado, la forma y la cantidad de titanio que necesita para conocer mejor sus necesidades.
El equipo de DAXUN es experimentado, experto y amable. Con años de experiencia en el sector, lo saben todo sobre el titanio, incluidos sus usos, ventajas y calidades.
Si desea información actualizada sobre el titanio, sus usos y aplicaciones en distintos sectores, no deje de consultar nuestro blog. Nuestros expertos han escrito guías fáciles de seguir a las que siempre podrá recurrir cuando tenga preguntas.
Si sigues teniendo problemas, no dudes en ponerte en contacto con nosotros; estaremos encantados de ayudarte.
Si envía un correo electrónico a [email protected], recibirá una respuesta rápida. Asegúrate de incluir en tu pregunta todos los detalles posibles para que podamos recomendarte una solución adecuada.
Rellene el formulario de la página “Contacto” o llame a nuestro responsable de ventas al “+86 13382898899”, nos pondremos en contacto con usted lo antes posible. Nuestro WhatsApp está en línea, y el correo electrónico ([email protected]) se comprobará en un plazo de 6 horas. Cada consulta o mensaje será respondido con prontitud. Además, compartimos información de mercado con nuestros clientes cada semana
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