Properties and applications of GR5 titanium alloy

GR5 is also known as Ti6Al4V, TI-6AL-4V, or Ti 6-4
Not to be confused with Ti-6Al-4V-ELI (GR23), it is the most commonly used alloy. The chemical composition of GR5 is 6% aluminum, 4% vanadium, 0.25% (up to) iron, 0.2% (up to) oxygen, and the rest is titanium.
It is significantly stronger than commercial pure titanium, while having the same stiffness and thermal properties (excluding thermal conductivity, GR5 Ti has a thermal conductivity about 60% lower than CP Ti). It has many advantages, one of which is that it can be heat treated. This grade is an excellent combination of strength, corrosion resistance, weldability and machinability.
"This alpha-beta alloy is the workhorse of the titanium industry. The alloy can be fully heat-treated, with cross-section sizes up to 15 mm and service temperatures up to approximately 400 C (750 F). Because it is the most commonly used alloy - more than 70 percent of the molten alloy grades are subgrades of Ti6Al4V, its uses span many aerospace airframe and engine component uses, as well as major non-aerospace applications, particularly in the Marine, offshore and power generation industries."
Applications: blades, discs, rings, fuselage, fasteners, components. Containers, casings, wheels, forgings. Biomedical implants.