The technical case for titanium’s application to seawater service was well established in the early 1970’s and performance of titanium over the last 40 years has validated the technical case. Widespread use of titanium for process plant application has grown significantly over the last 40 years in spite of comparative cost with competing alloys. This challenge began to reverse in the early 2000s as global expansion of titanium production accelerated and the cost for competing alloys continued to rise.
Titanium is a highly active metal, almost reactive with all elements. At high temperature,it also react organic reactions with CO, CO2, water vapor, NH4, and many volatile. In the process of heating,surface contamination and chemical composition change are the results of the metal elements reaction with titanium surface. Some gases will not only form titanium compounds on the surface, but also can enter the metal lattice to react the gap formation of solid solution. In an industrial pressure, the curve of oxygen, nitrogen absorption of pure titanium has a variety of changes at kinds of atmosphere environments.