Ti-6Al-4V, Ti-5Al-2.5Sn, Ti-6Al-4V ELI and other titanium alloys are widely used in rocket engine casings, fuel tanks, and structural components.
Titanium's high strength-to-weight ratio, excellent corrosion resistance, and good performance at cryogenic temperatures make it ideal for aerospace applications. It is used in rocket motor cases, propellant tanks, and spacecraft structures.