Physical & Mechanical property of Titanium
3.1 Top 10 property of Titanium and titanium alloys
3.1.1 Low density, High strength, high specific strength
Titanium Density is 4.51g/cm3, half of the Steel.
For Strength, 3.5 times than Stainless steel, 1.3 times than
Aluminum alloys, 1.7 times than magnesium alloy.
Titanium alloy is a perfect choice for Aerospace construction
materials.
3.1.2 Excellent Corrosion resistance
The important is oxide film.
• Titanium materials with excellent corrosion resistance in
Acid environment. Like Seawater, wet chlorine gas, chlorite
and pypocholoride., etc.
3.1.3 Good heat resistant performance
Titanium alloys with excellent Physical property about 500℃
This performance made titanium alloys widely used in
Aerospace manufacturing, like Turbines, Impellers and body.
3.1.4 Good cryogenic property
3.1.5 Non-Magnetic
It won’t cause a explosion if used in Submarine housings
3.1.6 Small coefficient of heat conductivity
Comparsion of thermal coefficient
Alloys Ti Al Fe Cu
Thermal
coefficient 17 212 85 255
3.1.7 Low elasticity modulus
Comparsion of elasticity modulus
Alloys Ti Al Fe
Elasticity
modulus
108 72 196
3.1.7 Tensile strength is similar with Yield strength
Ti-6Al-4V: Tensile strength is 960Mpa, Yield strength is
892Mpa
Comparsion of elasticity modulus
Alloys Ti (Ti-6Al-4V) 18-8 SS Aluminum
Tensile
Yield
960
892
608
235
470
294
3.1.8 Oxidizable in high temperature
3.1.9 Low damping resistance
3.2 Top 3 Special function
3.2.1 shape memory polyurethane
Named Shape memory alloys.
3.2.2 Superconducting function
NbTi Alloys named Superconducting materials
3.2.3 hydrogen absorption
Ti-50% Fe alloys, Named hydrogen storage
3.3 Physical Property
(1) Density:4.51g/cm3
(2) Melting point: 1668±5℃
(3) specific heat capacity: 500J.(kg.K)-1 (20℃)
(4) thermal coefficient of expansion: 7.6x10-6K-1 (100℃)
(5) thermal conductivity: 17W/(m.K)
(6) resistivity: 0.48 uΩ.m
(7) susceptibility: 3.4x10-6
(8) Modulus of Elasticity: 103~110GPa
(9) Poisson ratio: 0.34
3.4 Mechanical Property
CP Titanium: Tensile Strength is 265~353 Mpa
Titanium alloys: Tensile Strength is 686~1176 Mpa, Max is
1764Mpa
Baoji Mingkun Nonferrous Metal Co.,Ltd