Grade 2 titanium is a popular choice for commercial use due to its strength, durability, and corrosion resistance. This grade of titanium has a minimum yield strength of 275 MPa and a minimum ultimate tensile strength of 450 MPa, making it one of the strongest grades of commercially pure titanium. The strain hardening is eliminated during 600°C annealing. Hence, relatively lower strength and better ductility are obtained. Usually for grade 2 titanium tubes, the annealing temperature should be at 600°C. The annealing process is a heat treatment of titanium that changes the physical and sometimes also the chemical properties to reduce the hardness to make it more workable. The purpose of annealing is to improve the grade 2 titanium machinability.