The density of high titanium alloy is generally about 4.51g/ cubic centimeter, only 60% of steel, the strength of pure titanium is close to the strength of ordinary steel, and some high strength titanium alloys exceed the strength of many alloy structural steel. Therefore, the specific strength (strength/density) of titanium alloy is much higher than that of other metal structural materials, and components with high unit strength, good rigidity and light weight can be produced. At present, titanium alloys are used in aircraft engine components, skeletons, skins, fasteners and landing gear.
Titanium alloys have high thermal strength
First, medical titanium bar production standards and requirements the use of temperature is several hundred degrees higher than aluminum alloy, at medium temperature can still maintain the required strength, can work at 450 ~ 500℃ for a long time at the temperature of these two types of titanium alloy in the range of 150℃ ~ 500℃ still have a high specific strength, and aluminum alloy at 150℃ specific strength decreased significantly. The operating temperature of titanium alloy can reach 500℃, and that of aluminum alloy is below 200℃.
Titanium alloy has good corrosion resistance
Titanium alloy works in the humid atmosphere and seawater medium, and its corrosion resistance is far better than stainless steel; Resistance to pitting corrosion, acid corrosion, stress corrosion is particularly strong; Excellent corrosion resistance to alkali, chloride, chlorine, nitric acid, sulfuric acid, etc. However, titanium has poor corrosion resistance to reducing oxygen and chromium salt media.