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Osmium (Os)




Electrical resistivity ρel

8.2E-8 Ω·m 0

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Density ρ

22.61 g/cm³ at 20 °C


Elastic modulus E

570 GPa at 20 °C

Hardness, Vickers HV

130 - 680 [-] at 20 °C


Coefficient of thermal expansion α

4E-6 - 5.8E-6 1/K at 50 °C

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Melting point Tm

3050 °C

Thermal conductivity λ

93 W/(m·K) at -73 °C

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This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.