Physical & Mechanical property of Titanium

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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