What is the difference between pure titanium and titanium alloy
The difference between titanium and titanium alloy is different titanium content and density;
Different titanium content: pure titanium is a silver white metal, and titanium alloy refers to various alloy gold made of titanium and other metals;
Different densities: the density of titanium is 4.54g/cm3, 43% lighter than steel, higher than aluminum, but lower than steel, copper and nickel, and its specific strength ranks first among metals; The density of titanium alloy is usually about 4.51g/cm3, which is only 60% of that of steel;
Pure titanium is a silver white metal with many excellent properties, such as light weight, high strength, metallic luster and wet chlorine corrosion resistance. The density of titanium is lighter than that of steel, but its mechanical strength is similar to that of steel, twice that of aluminum and five times that of magnesium; Titanium has high temperature resistance, with a melting point of 1942K, nearly 1000K higher than gold and 500K higher than steel;
Titanium alloys refer to various alloy metals made of titanium and other metals. Titanium alloys have the advantages of high strength, good corrosion resistance and high heat resistance. Titanium alloys account for only 60% of steel. The strength of some high-strength titanium alloys exceeds that of many alloy structural steels.
Use of pure titanium: impurity content has a great impact on the performance of titanium, and a small amount of impurities can significantly improve the strength of titanium. Therefore, the strength of industrial pure titanium is relatively high, close to the level of high-strength aluminum alloy, and it is mainly used to manufacture petrochemical heat exchanger, reactor, ship parts, aircraft skin, etc. with working temperature lower than 350 ℃.
The obvious difference between pure titanium and titanium alloy is that titanium alloy is added with chemical substances such as al, mo, cr and sn on the basis of pure titanium. It is precisely because of these chemicals that the properties of these two titanium metals are different.
