Osmium - 76Os: physical properties
Density properties
Density of solid: 22610 kg m‑3
Molar volume: 8.42 cm3
Elastic properties
Young's modulus: (no data) GPa
Rigidity modulus: 222 GPa
Bulk modulus: (no data) GPa
Poisson's ratio: 0.25 (no units)
Hardnesses
Mineral hardness: 7.0 (no units)
Brinell hardness: 3920 MN m-2
Vickers hardness: (no data) MN m-2


Electrical properties
Electrical resistivity: 8.1 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 88 W m‑1 K‑1
Coefficient of linear thermal expansion: 5.1 × 10‑6 K‑1
Optical properties
The image above is a virtual representation of osmium metal calculated by Patrick Callet using the complex diectric function of the element only.
Reflectivity: (no data) %
Refractive index: (no data) (no units)
Acoustic properties
Velocity of sound: 4940 m s‑1