| Purity[纯度] | 99.99% |
| Thickness[厚度] | 0.003mm |
| Typical Analysis(典型分析) |
| Al | <3 PPM |
| Ca | <2 PPM |
| Cr | <6 PPM |
| Cu | <10 PPM |
| Fe | <10 PPM |
| Mg | <1 PPM |
| Mn | <1 PPM |
| Nb | <5 PPM |
| Ni | <3 PPM |
| S | <1 PPM |
| Si | <5 PPM |
| V | <3 PPM |
| Zn | <1 PPM |
| Zr | <3 PPM |
| Atomic Properties(原子属性) |
| Atomic number | 22 |
| Atomic weight ( amu ) | 47.88000 |
| Crystal structure | Hexagonal Close Packed |
| Electronic structure | Ar3d²4s² |
| Ionisation potential ( No./eV ) | 3 / 27.5 |
| Ionisation potential ( No./eV ) | 4 / 43.3 |
| Ionisation potential ( No./eV ) | 5 / 99.2 |
| Ionisation potential ( No./eV ) | 1 / 6.82 |
| Ionisation potential ( No./eV ) | 2 / 13.6 |
| Ionisation potential ( No./eV ) | 6 / 119 |
| Natural isotope distribution ( Mass No./% ) | 50 / 5.3 |
| Natural isotope distribution ( Mass No./% ) | 49 / 5.5 |
| Natural isotope distribution ( Mass No./% ) | 46 / 8.0 |
| Natural isotope distribution ( Mass No./% ) | 48 / 73.7 |
| Natural isotope distribution ( Mass No./% ) | 47 / 7.5 |
| Photo-electric work function ( eV ) | 4.10 |
| Thermal neutron absorption cross-section ( Barns ) | 6.1000 |
| Valences shown | 2 ,3,4 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 8.900 @0-100℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 8893 |
| Latent heat of fusion ( J g⁻¹ ) | 365.00 |
| Melting point ( C ) | 1660.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 523.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 21.90 @0-100℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) | 108.4 |
| Hardness - Vickers ( kgf mm⁻² ) ( Annealed ) | 60 |
| Izod toughness ( J m⁻¹ ) ( Annealed ) | 61 |
| Material condition | Polycrystalline |
| Material condition | Annealed |
| Poisson's ratio ( Polycrystalline ) | 0.361 |
| Tensile modulus ( GPa ) ( Polycrystalline ) | 120.20 |
| Tensile strength ( MPa ) ( Annealed ) | 230.00 - 460.00 |
| Yield strength ( MPa ) ( Annealed ) | 140.0 - 250.0 |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 3287 |
| Density ( g cm⁻³ ) | 4.500 @20℃ |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 54@20℃ |
| Superconductivity critical temperature ( K ) | 0.4000 |
| Temperature coefficient ( K⁻¹ ) | 0.00380 @0-100℃ |
