Chromium

Chromium: physical properties

Temperatures

• Melting point: 2180 [or 1907 °C (3465 °F)] K
• Boiling point: 2944 [or 2671 °C (4840 °F)] K (liquid range: 764  K
• Critical temperature: no data  K
• Superconduction temperature: no data  K

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Expansion and conduction properties

• Thermal conductivity: 94  W m^-1 K^-1
• Coefficient of linear thermal expansion: 4.9  x 10^-6 K^-1

Bulk properties

• Density of solid: 7140  kg m^-3
• Molar volume: 7.23  cm³
• Velocity of sound: 5940  m s^-1

Elastic properties

• Youngs modulus: 279  GPa
• Rigidity modulus: 115  GPa
• Bulk modulus: 160  GPa
• Poissons ratio: 0.21  (no units)

Hardnesses

• Mineral hardness: 8.5  (no units)
• Brinell hardness: 1120  MN m^-2
• Vickers hardness: 1060  MN m^-2

Electrical properties

• Electrical resistivity: 12.7  10^-8 Ω m; or mΩ cm

Optical properties

The image above is a virtual representation of chromium metal calculated by Patrick Callet using the complex diectric function of the element only.

• Reflectivity: no data  %
• Refractive index: no data  (no units)

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Chromium	Chrome
Chrom	Chroom
Cromo	Cromo
Krom	Crômo