Titanium 6AL4V(Gr5) Relevant information about Titanium 6AL4V:TC4 alloy 6%AL,4%V,is now the most widely used, and have the biggest output α+β alloy.With the moderate intensity and plasticity, its main forms are bar and disk, can be used in a state of 450 degree for a jet engine and compressor blade turbine disk. It has great welding properties, heat treatment reinforcement, and generally deliveried and uesd in unnealed state.