Titanium metal is as follows:
Titanium alloy is titanium as the basis for the addition of other elements to the composition of the alloy, titanium alloy materials have a light weight, high strength, low elasticity, high temperature and corrosion resistance, etc., is mainly used in aviation engines, rockets, missiles components. (Titanium is also used in general industry, and there are many grades of titanium, so different industries will choose the right grade of titanium according to their requirements.)
Titanium:
Titanium looks like steel, with a silvery-gray luster, is a transition metal, and for some time it has been considered a rare metal. Titanium is not a rare metal, titanium in the earth's crust of about 0.42% of the total weight, is copper, nickel, lead, zinc total 16 times. It ranks seventh in the world of metals, and there are more than 70 kinds of titanium-containing minerals.
The above content reference? Baidu Encyclopedia-Titanium