Titanium Pipe is a reference to a large number of titanium alloy material made pipes. The titanium material differs according to the different grades of titanium. For example, the grade 9 contains 3% aluminium and 2.5% vanadium whereas the grade 11 contains 0.12% to 0.25% palladium in its composition. These differences make up the different mechanical properties of the materials. Sometimes unalloyed titanium is also used. Grades 2 and 3 are unalloyed. There are many grades, meaning there are many different material compositions of any titanium pipe material. Although there grade 1 through grade 38, the most widely used grade is the grade 5. This material contains 6% aluminium, 4% vanadium and iron and oxygen as well. The reason why the grade 5 material is most used is because it could be fabricated, welded and heat treated. It is also high corrosion resistant and has excellent strength.
There are also differences in the making of the material. The manufacturing processes can influence some of the mechanical properties as well. The hot rolled pipes are stronger as they are welded to make the pipes. But their roughness is higher than the seamless pipes. The cold drawn ones on the other hand are seamless and can have smooth surfaces. This welded titanium pipe has less surface evenness while possessing high strength and high weldability. Since the grade 5 is the most used of these materials, its availability is higher than others. Also the titanium gr 5 pipe price is very reasonable because of the wide usage.