Ruthenium - 44Ru: physical properties
Density properties
Density of solid: 12370 kg m‑3
Molar volume: 8.17 cm3
Elastic properties
Young's modulus: 447 GPa
Rigidity modulus: 173 GPa
Bulk modulus: 220 GPa
Poisson's ratio: 0.30 (no units)
Hardnesses
Mineral hardness: 6.5 (no units)
Brinell hardness: 2160 MN m-2
Vickers hardness: (no data) MN m-2


Electrical properties
Electrical resistivity: 7.1 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 120 W m‑1 K‑1
Coefficient of linear thermal expansion: 6.4 × 10‑6 K‑1
Optical properties
The image above is a virtual representation of ruthenium 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: 5970 m s‑1