1. What Is GR6(Ti-5Al-2.5Sn) Titanium Alloy?
GR6 titanium alloy is an α type alloy, the composition is Ti-5Al-2.5Sn, Al and Sn elements can play a role in stabilizing α and solid solution strengthening.
2.GR6(Ti-5Al-2.5Sn) Titanium Alloy Annealing
GR6 titanium alloy through recrystallization annealing to achieve solid solution strengthening, recrystallization temperature starts at 580 ℃, recrystallization annealing temperature, titanium plate is 700-750 ℃, titanium rod and titanium forgings is 800-850 ℃, stress relief annealing temperature is 550-600 ℃.
3.GR6(Ti-5Al-2.5Sn) Titanium Alloy
GR6 titanium alloy has medium strength and good creep resistance and thermal stability. The length working temperature is 450 ℃, and the short time working at high temperature can reach 800-850 ℃.GR6 titanium alloy has excellent low temperature performance and welding performance, and the strength increases with the decrease of temperature. It still maintains good plasticity in ultra-low temperature environment (-250 ℃). Often used as ultra-low temperature and high pressure vessels.
4.GR6(Ti-5Al-2.5Sn) Titanium Alloy Performance
| Major Element | Product | Size | σb/Mpa | δ/% | |
| Al | Sn | Bar | / | 784 | 10 |
| 4.5-5.5 | 2.0-3.0 | Sheet | 1.0-10.0 | 735-931 | 12%-20% |
5.GR6(Ti-5Al-2.5Sn) Titanium Alloy ultra-low temperature performance
| Alloy | Test Temperature | σb/Mpa | σ0.2/Mpa | δ5/% |
| Ti-5Al-2,5Sn | 20 -80 -196 -253 | 850 1020 1420 1700 | 750 920 1340 1580 | 18.5 14 13 4 |
| Ti-5Al-2,5Sn Eli | 20 -196 -253 | 770 1290 1570 | 700 1220 1500 | 17 14 12 |
