| Maximum Lump Size[] | 10mm |
| Purity[纯度] | 99.0% |
| Weight[重量] | 20 g - 200 g |
| Atomic Properties(原子属性) |
| Atomic number | 20 |
| Atomic weight ( amu ) | 40.08000 |
| Crystal structure | Face Centred Cubic |
| Electronic structure | Ar4s² |
| Ionisation potential ( No./eV ) | 2 / 11.87 |
| Ionisation potential ( No./eV ) | 6 / 109 |
| Ionisation potential ( No./eV ) | 1 / 6.11 |
| Ionisation potential ( No./eV ) | 4 / 67.1 |
| Ionisation potential ( No./eV ) | 3 / 50.9 |
| Ionisation potential ( No./eV ) | 5 / 84.4 |
| Natural isotope distribution ( Mass No./% ) | 40 / 96.941 |
| Natural isotope distribution ( Mass No./% ) | 43 / 0.135 |
| Natural isotope distribution ( Mass No./% ) | 44 / 2.086 |
| Natural isotope distribution ( Mass No./% ) | 48 / 0.187 |
| Natural isotope distribution ( Mass No./% ) | 42 / 0.647 |
| Natural isotope distribution ( Mass No./% ) | 46 / 0.004 |
| Photo-electric work function ( eV ) | 2.87 |
| Thermal neutron absorption cross-section ( Barns ) | 0.4400 |
| Valences shown | 2 |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 3.7@20℃ |
| Temperature coefficient ( K⁻¹ ) | 0.00457 @0-100℃ |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | -0.51 |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Hard ) | 17.2 |
| Bulk modulus ( GPa ) ( Soft ) | 17.2 |
| Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 17 |
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio ( Hard ) | 0.310 |
| Poisson's ratio ( Soft ) | 0.310 |
| Tensile modulus ( GPa ) ( Hard ) | 19.60 |
| Tensile modulus ( GPa ) ( Soft ) | 19.60 |
| Tensile strength ( MPa ) ( Hard ) | 115.00 |
| Tensile strength ( MPa ) ( Soft ) | 55.00 |
| Yield strength ( MPa ) ( Hard ) | 84.5 |
| Yield strength ( MPa ) ( Soft ) | 14.0 |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 1484 |
| Density ( g cm⁻³ ) | 1.550 @20℃ |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 22.000 @0-100℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 3760 |
| Latent heat of fusion ( J g⁻¹ ) | 209.00 |
| Melting point ( C ) | 839.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 653.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 125.00 @0-100℃ |
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