Titanium Physical Properties

The density of titanium is 4.506-4.516 g/cm3 (20℃), higher than aluminum and lower than iron, copper and nickel. But the specific strength is located in the first metal. Melting point 1668 ± 4 ℃, latent heat of fusion 3.7-5.0 kcal / g atoms, boiling point 3260 ± 20 ℃, latent heat of vaporization 102.5-112.5 kcal / g atoms, the critical temperature of 4350 ℃, the critical pressure of 1130 atm. Titanium's thermal conductivity and electrical conductivity is poor, approximate or slightly lower than stainless steel, titanium has superconductivity, pure titanium superconductivity critical temperature of 0.38-0.4 K. At 25 ℃, titanium's heat capacity of 0.126 cal/g atoms-degree, enthalpy 1149 cal/g atoms, entropy 7.33 cal/g atoms-degree, titanium metal is a paramagnetic substance, permeability of 1.00004.

Titanium has plasticity, high purity titanium elongation up to 50-60%, section shrinkage up to 70-80%, but low strength, not suitable for structural materials. The presence of impurities in titanium has a great impact on its mechanical properties, especially interstitial impurities (oxygen, nitrogen, carbon) can greatly increase the strength of titanium, significantly reducing its plasticity. Titanium as a structural material with good mechanical properties is achieved by strictly controlling the appropriate content of impurities and the addition of alloying elements.