High-performance alloy material for industrial engineering and critical application conditions.
Scope of supply for Aviation Group
Forgings, round rods, steel plates, rings, seamless pipes, steel plates/steel belts, capillaries, wire welding materials, welcome to inquire!
Titanium forgings, custom titanium rods per drawings. Φ(8-400) ×L≤5000mm (rolled rods, forged rods)
Titanium plate/belt (0.3-60.0) × (400-1000) × (1000-3500) mm (cold rolled plate, hot rolled plate)
Titanium tube Φ(3-210) × (0.2-10.0) ×L (rolled pipes, extruded pipes)
Titanium ring Outer diameter φ(100-1200) × inner diameter Φ(100-1000) × height (20-800) mm
Titanium round cake Φ(150-1200) × (20-800) mm
Titanium wire Φ(0.1-7.0) ×L
1. Introduction to Gr9 materials
Gr9 titanium alloy is a low-alloy near-alpha titanium alloy with nominal composition Ti-3Al-2.5V, developed for cold-formable tubing. It delivers excellent cold forming and welding performance, its room-temperature strength is 20%~50% higher than commercially pure titanium, and it shows good corrosion resistance in various media. Gr9 outperforms TC4 alloy in weldability and cold workability.
Gr9 seamless titanium tubes are designed for hydraulic and fuel pipeline systems of aircraft and aero-engines, widely used on all types of military and civil aerospace aircraft. With outstanding comprehensive performance, Gr9 is the ideal lightweight high-pressure conduit material for aviation equipment.
2. Technical standards of Gr9 materials
GB/T3620.1-2016 Titanium and Titanium Alloy Grades and Chemical Compositions
GB/T 3621-2007 ASTM/B265 Titanium and Titanium Alloy Sheet
GB/T2965 -2007 ASTM/B348 Titanium and Titanium Alloy Rod Material
GB/T 3624-2010 ASTM/B337 Titanium and Titanium Alloy Seamless Tube
GB/T16598-2013 ASTM/B381 Titanium & titanium alloy tubes for heat exchanger and condenser
GB/T13810-1997 ASTM/F136 Titanium and titanium alloy processing materials for surgical implants
GB/T3623-2007 ASTM/B863 titanium and titanium alloy wire
ASTM/B265 Titanium and Titanium Alloy Strip & Foil
3. Chemical composition of Gr9
| Brand | Chemical composition (wt%) | |||||||||
| Ti | Fe | C | N | H | O | Al | V | Single impurity | Total impurities | |
| Gr9 | Bal | ≤0.25 | ≤0.08 | ≤0.05 | ≤0.015 | ≤0.12 | 2.0～3.5 | 1.5～3.0 | ≤0.1 | ≤0.4 |
4. Gr9 physical properties
Density: 4.47g/cm³
Room temperature elastic modulus: 118~123GPa
Phase transformation temperature: 925℃
Hardness: 15~17HRC
Standard specified mechanical properties of Gr9 titanium alloy
| Standard | Product form | Delivery state | Specifications/mm | Sampling direction | Room temperature mechanical properties | High temperature mechanical properties | |||||||
| Rm/MPa | Rp0.2/MPa | Elongation A/% | Bending angle α/(°) | 350℃ | 400℃ | ||||||||
| Rm/MPa | σ100h/MPa | Rm/MPa | σ100h/MPa | ||||||||||
| Minimum required value | |||||||||||||
| GB/T3621-2007 | Plate | M | 0.5~1.0 ＞1.0~2.0 ＞2.0~4.0 ＞4.0~5.0 ＞5.0~10.0 |
LT | 590~735 | – | 25 25 20 15 15 |
100 70 60 60 60 |
340 | 320 | 310 | 280 | |
| GJB 3423A-2008 | Tube | M | Outer diameter: ＞8~52 | LT | 620 | 515 | 15 | – | – | – | – | – | |
| GB/T26058-2010 | Tube | R | 25~210 | LT | Test on actual product | Test on actual product | Test on actual product | – | – | – | – | – | |
5. Gr9 application fields
