Ti-3AI-2.5V(TA18) titanium alloy is an α -type titanium alloy with a nominal composition of Ti-3Al-2.5V, which was developed for cold-workable tubing applications. At room temperature and high temperatures, its strength is 20% to 50% higher than that of pure titanium, and its welding performance and cold formability are superior to those of TC4 alloy. The maximum operating temperature is approximately 315℃. Although the strength of this alloy is not as high as that of TC4 alloy, it has been widely used due to its excellent cold working performance. TA18 titanium alloy is suitable for hydraulic and fuel pipeline systems of aircraft and engines, and has been applied in various military and civilian aircraft as well as aerospace.
The density of this alloy is 4.51g/cm³.
