Primary standard name
Equivalent standard names
Related standards
Chemical composition
Element
Weight %
Comment
96.86 - 97.87 %
0.9 - 1.2 %
0.6 - 0.85 %
0.33 - 0.38 %
0.15 - 0.3 %
Mechanical
Elastic modulus, E
200 - 215 GPa at 23 °C
Poisson's ratio, ν
0.29 [-] at 23 °C
General
Density, ρ
7.8 - 7.9 g/cm³ at 23 °C
Thermal
Coefficient of thermal expansion, α
1.1E-5 - 1.4E-5 1/K at 23 °C
Thermal conductivity, λ
36 - 43 W/(m·K) at 23 °C
Melting point, Tm
1382 - 1529 °C
Specific heat capacity, cp
448 - 502 J/(kg·K) at 23 °C