1. High intensity
The density of titanium alloy is generally about 4.51g/cm3, only 60% of steel, pure titanium density is only close to the density of ordinary steel, and the strength of some high-strength titanium alloys exceeds that of many alloy structural steels.
2. Good corrosion resistance
Titanium alloy works in the humid atmosphere and seawater medium, and its corrosion resistance is much better than that of stainless steel; Resistance to pitting, acid corrosion, stress corrosion is particularly strong.
3. High heat intensity
The use temperature is several hundred degrees higher than that of aluminum alloy, it can still maintain the required strength at moderate temperatures, and can work for a long time at 450 ~ 500℃. These two types of titanium alloys still have a high specific strength in the range of 150 ~ 500℃, and the specific strength of aluminum alloy decreases significantly at 150℃.
4. High chemical activity
The chemical activity of titanium is large, and it produces strong chemical reactions with O, N, H, CO, CO2, water vapor, ammonia and so on in the atmosphere. When the carbon content is greater than 0.2%, hard Tic will be formed in titanium alloy.
5. Good low temperature performance
Titanium alloys can still maintain their mechanical properties at low and ultra-low temperatures.
