The density of titanium metal in titanium coil is 4.51g/cm3, higher than that of aluminum and lower than that of steel, copper and nickel, and its strength is the largest of the metals.
2. Corrosion resistance:
Titanium is a very active metal. Its equilibrium potential is very low and its thermodynamic corrosion tendency in the medium is very high. But in fact, titanium is very stable in oxidizing, neutral and weak reducing media and has corrosion resistance.
3. Good heat resistance:
The new titanium alloy can be used for a long time at 600 ℃ or higher.
4. Good low temperature resistance:
Low-temperature titanium alloys, such as titanium alloys TA7 (Ti-5 Al-2.5Sn), TC 4 (Ti-6 Al-4V) and Ti-2.5Zr-1.5Mo, have their strength increasing with the decrease of temperature, but their plasticity has little change. It maintains good ductility and toughness at low temperature of - 196-253 ℃, and is spared from cold brittleness of metal. It is an ideal material for cryogenic containers, storage tanks and other equipment.
5. Good damping resistance:
Compared with steel and copper, the vibration attenuation time of titanium metal is longer after mechanical vibration and electrical vibration. This property of titanium can be used as a tuning fork, a vibration element of an academic pulverizer, and a vibration film of an audio speaker.
6. No magnetism and dirt:
Titanium in titanium coil is a non-magnetic metal, which will not be magnetized in a large magnetic field. It is pollution-free, has good compatibility with human tissues and blood, and is used by academia.
7. Tensile strength is close to its yield strength:
This property of titanium indicates that its yield strength ratio (tensile strength/yield strength) is higher, indicating that the plastic deformation of titanium metal in the forming process is poor. Because of the large ratio of yield strength to elastic modulus of titanium, the springback of titanium in the forming process becomes larger.
8. Good heat exchange performance:
Although the thermal conductivity of titanium metal is lower than that of carbon steel and copper, its wall thickness can be greatly reduced due to its excellent corrosion resistance. The heat transfer mode between the surface and the steam is dropwise condensation, which reduces the heat group. If the surface is cooled, the heat group can also be reduced. Since there is no scaling on the surface, the heat transfer performance of titanium can be significantly increased.
9. Low elastic modulus:
The elastic modulus of titanium is 106.4 GMPa at room temperature, which is 57% of that of steel.
10. Suction performance:
Titanium in titanium coil is a very active metal, which can react with many elements and compounds at high temperature. Titanium gettering mainly refers to the reaction with carbon, hydrogen, nitrogen and oxygen at high temperature.