Titanium Grade 9 (Ti-3Al-2.5V) tube is a near-alpha titanium alloy tube that offers the optimal balance of high strength, excellent cold formability and superior weldability, specially engineered for automotive hydraulic, fuel and structural components requiring complex shaping and long-term reliability.
As the most cost-effective high-strength titanium alloy for mass automotive production, Titanium Grade 9 tube delivers 50% higher strength than Grade 2 pure titanium while maintaining comparable formability, making it the ideal material for lightweight automotive tubing systems that outperform steel and aluminum.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B338, ASTM B861, AMS 4943, DIN 17861, ISO 5832-9
2. Automotive Industry Standards: IATF 16949, ISO 9001, ISO 14001, VDA 6.3 3. Testing Standards: ASTM E8 (Tensile), ASTM E23 (Impact), ASTM G48 (Corrosion), ASTM A450 (Hydrostatic), ASTM B670 (Formability) |
| Material Grade | 1. Main Grade: Titanium Grade 9 (Ti-3Al-2.5V, Near-Alpha Titanium Alloy, Automotive High-Strength Formable Grade)
2. International Designations: UNS R56320, W.Nr. 3.7105, Ti-3Al-2.5V 3. Equivalent Grades: GB TC2, JIS TP390, fully compatible with all global automotive manufacturing standards |
| Chemical Composition (Weight %) | 1. Titanium (Ti): Balance
2. Aluminum (Al): 2.50 – 3.50 (alpha stabilizer for increased strength) 3. Vanadium (V): 2.00 – 3.00 (beta stabilizer for improved ductility and formability) 4. Iron (Fe): ≤0.25 5. Oxygen (O): ≤0.15 6. Carbon (C): ≤0.08 7. Nitrogen (N): ≤0.03 8. Hydrogen (H): ≤0.015 9. Other Elements (each): ≤0.10 10. Other Elements (total): ≤0.40 |
| Mechanical Properties (Annealed State) | 1. Tensile Strength: 550 – 700 MPa (50% higher than Grade 2)
2. 0.2% Yield Strength: ≥450 MPa (64% higher than Grade 2) 3. Elongation (δ5): ≥20% (excellent for cold forming operations) 4. Reduction of Area (ψ): ≥40% 5. Hardness (HB): 150 – 200 6. Density: 4.48 g/cm³ (45% lighter than steel) 7. Melting Point: 1660℃ 8. Thermal Conductivity: 8.0 W/(m·K) 9. Fatigue Strength (10⁷ Cycles): ≥300 MPa |
| Dimensional Tolerance (Automotive Grade Precision) | 1. Outer Diameter Tolerance: Precision Cold Drawn (≤50mm): ±0.03mm; Standard Grade (50-100mm): ±0.06mm
2. Wall Thickness Tolerance: ±0.03mm (≤3mm); ±0.06mm (3-6mm) 3. Length Tolerance: Fixed Length (1m-6m): ±0.3mm/m; Maximum Full-Length Tolerance: ≤1.2mm 4. Straightness: ≤0.2mm/m, Full-Length Straightness Error: ≤0.6mm/6m 5. Surface Finish: Ra ≤1.2μm standard, optional electropolished finish Ra ≤0.4μm for fluid transfer applications |
| Why the Automobile Manufacturing Industry Uses This Material (Detailed) | 1. Unmatched Strength-to-Formability Balance: Titanium Grade 9 occupies a unique position in the titanium alloy family, offering 50% higher strength than Grade 2 pure titanium while maintaining nearly identical cold formability. Unlike Grade 5 (Ti-6Al-4V) which requires hot forming and intermediate annealing for complex shapes, Grade 9 can be cold bent to 1D radius, expanded up to 30% and flared without cracking. This allows manufacturers to produce complex tubing assemblies using existing steel and aluminum production equipment, eliminating the need for costly retooling.
2. Superior Weldability for Mass Production: Titanium Grade 9 exhibits exceptional weldability using TIG, MIG and laser welding techniques. Welded joints retain over 95% of the base metal’s strength and ductility without requiring post-weld heat treatment. This is a critical advantage for automotive manufacturing, where high-volume production requires fast, reliable welding processes with minimal post-processing. 3. Exceptional Fatigue Resistance: Automotive tubing systems are subjected to millions of pressure cycles and vibration loads during their lifetime. Titanium Grade 9 has 50% higher fatigue strength than Grade 2 titanium and 2x higher fatigue strength than aluminum, making it ideal for high-pressure hydraulic, fuel and brake systems where fatigue failure could have catastrophic consequences. 4. Cost-Effective High-Strength Solution: While Grade 5 offers higher ultimate strength, it is significantly more expensive and difficult to process. Titanium Grade 9 provides 80% of the strength of Grade 5 at 30-40% lower cost, making it the most cost-effective high-strength titanium alloy for mass automotive applications. Its excellent cold workability also reduces manufacturing costs by eliminating intermediate annealing steps. 5. Excellent High-Temperature Performance: Titanium Grade 9 maintains its mechanical properties up to 400℃, making it suitable for underhood applications such as fuel lines, turbocharger oil lines and coolant tubes where temperatures can exceed 300℃. Unlike aluminum which softens above 150℃, Grade 9 retains its strength and dimensional stability at elevated temperatures. 6. Superior Corrosion Resistance: Like all titanium materials, Grade 9 forms a dense, self-healing titanium oxide film that provides exceptional resistance to road salt, de-icing chemicals, gasoline, diesel, engine oil, brake fluid and all other automotive fluids. It will never rust or corrode, ensuring components last the entire lifetime of the vehicle without degradation. 7. Enhanced Safety Performance: The high strength and energy absorption capabilities of Titanium Grade 9 make it ideal for safety-critical components such as brake lines and roll cage tubing. It can absorb more impact energy per unit weight than steel, improving crash safety while reducing overall vehicle weight. |
| Application Scenarios & Corresponding Customers (Detailed) | Application Scenarios:
1. Hydraulic and Pneumatic Systems: Brake lines, clutch lines, power steering lines, hydraulic suspension tubes and air suspension lines. Grade 9’s high strength, excellent formability and fatigue resistance make it the material of choice for these high-pressure safety-critical systems. It can withstand operating pressures up to 350 bar while being 45% lighter than steel brake lines. 2. Fuel System Components: High-pressure fuel injection lines, fuel rail tubes, fuel tank filler necks, fuel pump housings and evaporative emission control tubes. Its excellent corrosion resistance to ethanol-blended fuels (E10, E85) and biodiesel makes it ideal for modern fuel systems. 3. Air Conditioning and Cooling Systems: Air conditioning refrigerant lines, heater core tubes, engine coolant lines and battery thermal management system tubes for electric vehicles. Its formability allows for complex routing in tight engine compartments. 4. Chassis and Suspension Components: Stabilizer bar links, control arm bushings, shock absorber inner tubes, suspension strut tubes and roll cage components. Its high strength-to-weight ratio reduces unsprung weight, improving ride quality and handling. 5. Powertrain Components: Turbocharger oil lines, transmission fluid lines, engine oil cooler tubes and EGR system tubes. Its high-temperature resistance makes it suitable for these underhood applications. 6. Electric Vehicle (EV) Specific Components: Battery pack cooling tubes, high-voltage cable conduits, motor cooling jackets and charging system components. Its non-magnetic properties and excellent thermal conductivity make it ideal for EV applications. 7. High-Performance and Luxury Vehicles: Used extensively in premium and luxury vehicles for its combination of performance, durability and lightweight properties. Corresponding Customers: 1. Global premium and luxury automotive OEMs (BMW, Mercedes-Benz, Audi, Porsche, Jaguar Land Rover) 2. Leading electric vehicle manufacturers (Tesla, BYD, NIO, Xpeng, Rivian, Lucid Motors) 3. Automotive tier 1 suppliers specializing in fluid transfer systems (Bosch, Continental, ZF, TRW, Delphi) 4. Brake system manufacturers (Brembo, Akebono, Continental Teves) 5. Air conditioning system manufacturers (Denso, Valeo, Mahle) 6. High-performance and racing vehicle manufacturers 7. Automotive aftermarket companies producing performance upgrade parts |
| Corresponding User Needs in Automobile Manufacturing Industry (Detailed) | 1. Combined Strength and Formability Demand: Manufacturers need materials that can be formed into complex tubing shapes while providing sufficient strength to withstand high pressures and loads. Titanium Grade 9 is the only titanium alloy that meets this critical combination of properties.
2. High-Volume Production Compatibility Demand: Automotive manufacturers require materials that can be processed using existing production equipment and techniques. Titanium Grade 9’s excellent weldability and cold formability allow it to be integrated seamlessly into existing steel and aluminum production lines. 3. Fatigue and Pressure Resistance Demand: Automotive fluid systems operate under constant pressure and vibration. Users require materials with excellent fatigue resistance to prevent leaks and failures over the 15+ year vehicle lifetime. 4. Cost-Effectiveness Demand: While lightweighting is critical, manufacturers also need to control costs. Titanium Grade 9 provides the best balance of performance and cost among high-strength titanium alloys, making it suitable for mass production. 5. Corrosion Resistance Demand: Vehicles operate in harsh environmental conditions including road salt, moisture and temperature extremes. Users require materials that will not corrode or degrade over time, eliminating costly warranty claims. 6. High-Temperature Performance Demand: Underhood components are exposed to high temperatures. Users require materials that maintain their strength and dimensional stability at elevated temperatures. 7. Safety and Reliability Demand: For safety-critical components such as brake lines, users require materials with proven reliability and zero failure tolerance. Titanium Grade 9’s excellent track record in aerospace and automotive applications ensures the highest level of safety. 8. Consistent Quality Demand: Automotive manufacturing requires materials with highly consistent mechanical properties and chemical composition. Users need suppliers with strict quality control systems to ensure batch-to-batch consistency. |
| Common Related Products in Automobile Manufacturing Industry | 1. Titanium Grade 9 Bar: Used for manufacturing solid components such as fittings, fasteners, brackets and suspension components
2. Titanium Grade 9 Sheet/Plate: Used for heat shields, body panels, battery trays and structural components 3. Titanium Grade 9 Welding Wire: ERTi-9 welding wire specifically designed for welding Titanium Grade 9 components, ensuring excellent weld strength and ductility 4. Titanium Grade 9 Cold Drawn Precision Tube: Ultra-precision tubes with tight dimensional tolerances for hydraulic and fuel system applications 5. Titanium Grade 9 Pre-Bent Tube Assemblies: Custom pre-bent and end-formed tubes ready for installation, reducing customer manufacturing steps 6. Titanium Grade 2 Tube: Used for low-pressure applications requiring maximum formability 7. Titanium Grade 5 Tube: Used for ultra-high-strength structural applications 8. Titanium Brake Line Kits: Complete pre-assembled titanium brake line kits for automotive aftermarket 9. Titanium Fuel Line Assemblies: High-pressure fuel lines with end fittings for direct installation |
| Why Choose Us (Emily PIPE) | 1. 20+ Years of Titanium Automotive Expertise: We have been supplying high-quality titanium tubing to the global automotive industry for over 20 years, with deep understanding of fluid transfer system requirements and manufacturing processes.
2. IATF 16949 Certified: Our production facilities are fully certified to IATF 16949, the international standard for automotive quality management systems, ensuring compliance with the strictest automotive industry requirements. 3. Grade 9 Specialization: We specialize in producing high-quality Titanium Grade 9 tube with precise control over aluminum and vanadium content to ensure consistent strength and formability. 4. Advanced Cold Drawing Capability: We operate state-of-the-art cold drawing lines that can produce precision tubes with diameters as small as 3mm and wall thicknesses as thin as 0.3mm, with industry-leading dimensional tolerances. 5. Full Material Traceability: Every tube comes with a unique heat number and complete traceability documentation from raw material ore to finished product, meeting automotive industry traceability requirements. 6. Value-Added Processing: We offer comprehensive value-added services including precision cutting, bending, flaring, expanding, end forming and assembly, providing ready-to-install components. 7. Global One-Stop Service: We handle everything from material production and custom processing to international shipping and customs clearance, with reliable logistics partners ensuring on-time delivery to any automotive manufacturing facility worldwide. |
| Inquiry Guidance Words | 1. If you need high-strength formable Titanium Grade 9 tube for your automotive fluid transfer or structural system project, please send us your specific requirements including dimensions, quantity, required certifications and delivery date, and we will provide a detailed quotation within 12 hours.
2. For any questions about cold formability, weldability, pressure ratings or automotive application recommendations, our titanium alloy specialists are available to assist you promptly. 3. Emily PIPE is your trusted partner for high-performance automotive titanium tubing. Contact us today to discuss how our Titanium Grade 9 tube can help you achieve your lightweighting, performance and reliability goals with cost-effective solutions. |
| Supplementary Information | 1. Comprehensive Test Reports: Each batch comes with a full Material Test Report (MTR) including chemical composition analysis, mechanical properties testing, dimensional inspection and non-destructive testing results.
2. 100% Non-Destructive Testing: All tubes undergo 100% eddy current testing and hydrostatic testing to ensure no defects and pressure integrity. 3. End Forming Services: We offer a full range of end forming services including flaring, expanding, beading, threading and chamfering to meet your specific assembly requirements. 4. Professional Automotive Packaging: We use protective plastic caps on both ends, anti-corrosion wrapping and wooden crates to prevent damage during transportation. 5. Urgent Order Support: We maintain a large inventory of standard Titanium Grade 9 tube sizes, enabling us to fulfill urgent orders within 7-15 days. 6. Prototype Development Support: We support small batch prototype orders with fast turnaround times to help you accelerate product development and testing. 7. After-Sales Service: We provide lifetime technical support for all our products, including on-site assistance for forming, welding and assembly issues. 8. Sustainability Commitment: All our titanium products are manufactured using sustainable practices and are 100% recyclable, helping you meet your environmental targets. |