Diameter[直径] |
4mm - 15mm |
Purity[纯度] |
97.0% |
Temper[状态] |
Annealed |
Thickness[厚度] |
0.25mm |
Typical Analysis(典型分析) |
Al |
30 PPM |
C |
30 PPM |
Cr |
<50 PPM |
Cu |
<50 PPM |
Fe |
100 PPM |
Mg |
<10 PPM |
Mo |
<10 PPM |
N |
10 PPM |
Nb |
<50 PPM |
O |
150 PPM |
Ta |
<100 PPM |
Ti |
25 PPM |
U |
0.5 PPM |
W |
<50 PPM |
Zr |
2.8 Percent |
Mechanical Properties(机械性能) |
Bulk modulus ( GPa ) ( Hard ) |
109.0 |
Bulk modulus ( GPa ) ( Soft ) |
109.0 |
Hardness - Vickers ( kgf mm?? ) ( Soft ) |
150 - 180 |
Material condition |
Hard |
Material condition |
Soft |
Poisson's ratio ( Hard ) |
0.260 |
Poisson's ratio ( Soft ) |
0.260 |
Tensile modulus ( GPa ) ( Hard ) |
141.00 |
Tensile modulus ( GPa ) ( Soft ) |
141.00 |
Tensile strength ( MPa ) ( Hard ) |
745.00 |
Tensile strength ( MPa ) ( Soft ) |
445.00 |
Yield strength ( MPa ) ( Hard ) |
365.0 |
Yield strength ( MPa ) ( Soft ) |
240.0 |
Atomic Properties(原子属性) |
Atomic number |
72 |
Atomic weight ( amu ) |
178.49000 |
Crystal structure |
Hexagonal Close Packed |
Electronic structure |
Xe4f??5d?6s? |
Ionisation potential ( No./eV ) |
3 / 23.3 |
Ionisation potential ( No./eV ) |
1 / 7.0 |
Ionisation potential ( No./eV ) |
2 / 14.9 |
Ionisation potential ( No./eV ) |
4 / 33.3 |
Natural isotope distribution ( Mass No./% ) |
179 / 13.8 |
Natural isotope distribution ( Mass No./% ) |
176 / 5.2 |
Natural isotope distribution ( Mass No./% ) |
180 / 35.2 |
Natural isotope distribution ( Mass No./% ) |
174 / 0.2 |
Natural isotope distribution ( Mass No./% ) |
177 / 18.5 |
Natural isotope distribution ( Mass No./% ) |
178 / 27.1 |
Photo-electric work function ( eV ) |
3.90 |
Thermal neutron absorption cross-section ( Barns ) |
103.0000 |
Valences shown |
4 |
Physical Properties(物理性质) |
Boiling point ( C ) |
4602 |
Density ( g cm?? ) |
13.100 @20℃ |
Thermal Properties(热性能) |
Coefficient of thermal expansion ( x10?? K?? ) |
6.000 @0-100℃ |
Latent heat of evaporation ( J g?? ) |
3700 |
Latent heat of fusion ( J g?? ) |
122.00 |
Melting point ( C ) |
2227.00 |
Specific heat ( J K?? kg?? ) |
146.0 @25℃ |
Thermal conductivity ( W m?? K?? ) |
23.00 @0-100℃ |
Electrical Properties(电气特性) |
Electrical resistivity ( μOhmcm ) |
32.2@20℃ |
Superconductivity critical temperature ( K ) |
0.1280 |
Temperature coefficient ( K?? ) |
0.00440 @0-100℃ |