Tolerance on thickness : +/-20%.
订货号 |
包装规格 |
Sizes |
214-281-53 |
25mm x 25mm |
半岛bd体育手机客户端 参数
Purity[纯度] |
99.0% |
Temper[状态] |
As Rolled |
Thickness[厚度] |
0.0125mm |
Atomic Properties(原子属性) |
Atomic number |
21 |
Atomic weight ( amu ) |
44.95590 |
Crystal structure |
Hexagonal Close Packed |
Electronic structure |
Ar3d?4s? |
Ionisation potential ( No./eV ) |
3 / 24.8 |
Ionisation potential ( No./eV ) |
5 / 91.7 |
Ionisation potential ( No./eV ) |
4 / 73.5 |
Ionisation potential ( No./eV ) |
6 / 111 |
Ionisation potential ( No./eV ) |
1 / 6.54 |
Ionisation potential ( No./eV ) |
2 / 12.8 |
Photo-electric work function ( eV ) |
3.50 |
Thermal neutron absorption cross-section ( Barns ) |
25.0000 |
Valences shown |
3 |
Mechanical Properties(机械性能) |
Bulk modulus ( GPa ) ( Hard ) |
44.2 |
Bulk modulus ( GPa ) ( Soft ) |
44.2 |
Hardness - Brinell ( Hard ) |
136 |
Hardness - Brinell ( Soft ) |
78 |
Material condition |
Soft |
Material condition |
Hard |
Poisson's ratio ( Hard ) |
0.270 |
Poisson's ratio ( Soft ) |
0.270 |
Tensile modulus ( GPa ) ( Hard ) |
79.30 |
Tensile modulus ( GPa ) ( Soft ) |
79.30 |
Electrical Properties(电气特性) |
Electrical resistivity ( μOhmcm ) |
66@20℃ |
Temperature coefficient ( K?? ) |
0.00282 @0-100℃ |
Physical Properties(物理性质) |
Boiling point ( C ) |
2831 |
Density ( g cm?? ) |
2.990 @20℃ |
Thermal Properties(热性能) |
Coefficient of thermal expansion ( x10?? K?? ) |
12.000 @0-100℃ |
Latent heat of evaporation ( J g?? ) |
7293 |
Latent heat of fusion ( J g?? ) |
357.00 |
Melting point ( C ) |
1541.00 |
Specific heat ( J K?? kg?? ) |
557.0 @25℃ |
Thermal conductivity ( W m?? K?? ) |
15.80 @0-100℃ |
其他参数
公差
长度 |
<100mm |
±1mm |
≥100mm |
+2% / -1% |
直径 |
<100mm |
±1mm |
≥100mm |
+2% / -1% |
厚度 |
<0.01mm |
±25% |
≤0.05mm |
±15% |
>0.05mm |
±10% |
长度 1 |
<100mm |
±1mm |
≥100mm |
+2% / -1% |
长度 2 |
<100mm |
±1mm |
≥100mm |
+2% / -1% |
易燃
与火焰接触后点燃的化学品,或与水接触后逸出高度易燃气体的化学品。