Yttrium - 39Y: physical properties
Density properties
Density of solid: 4472 kg m‑3
Molar volume: 19.88 cm3
Elastic properties
Young's modulus: 64 GPa
Rigidity modulus: 26 GPa
Bulk modulus: 41 GPa
Poisson's ratio: 0.24 (no units)
Hardnesses
Mineral hardness: (no data) (no units)
Brinell hardness: 589 MN m-2
Vickers hardness: (no data) MN m-2


Electrical properties
Electrical resistivity: about 60 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 17.2 W m‑1 K‑1
Coefficient of linear thermal expansion: 10.6 × 10‑6 K‑1
Optical properties
Reflectivity: (no data) %
Refractive index: (no data) (no units)
Acoustic properties
Velocity of sound: 3300 m s‑1