Titanium materials’ grades

July 5, 2019
Latest company news about Titanium materials’ grades

» Titanium materials of grade 1-4 are unalloyed and considered commercially as pure or “C.P.” Generally speaking the tensile and yield strength goes up with the number of these grades.

» Grade 1. Pure Titanium, relatively low strength and high ductility.

» Grade 2. The pure titanium most used. The best combination of strength, ductility and weldability.

» Grade 3. High strength Titanium, used for Matrix-plates in shell and tube heat exchangers.

» Grade 5, also known as Ti6Al4V, Ti-6Al-4V or Ti 6-4, is the most commonly used alloy because of its special physical and chemical properties. It has a chemical composition of 6% Aluminum, 4% Vanadium, 0.25% (maximum) Iron, 0.2% (maximum) Oxygen and the rest is Titanium.

» Grade 7 contains 0.12% to 0.25% Palladium. The small amount of Palladium gives it improved crevice corrosion resistance at low temperatures and high pH.

» Grade 9 contains 3.0% Aluminum and 2.5% Vanadium. It is often used in aircraft tubing for hydraulics and in athletic equipment.

» Grade 12 contains 0.3% Molybdenum and 0.8% Nickel.

» Grade 23 contains 6% Aluminum, 4% Vanadium and 0.13% (maximum) Oxygen.