For high-temperature thermocouples we supply Platinum, Platinum/Rhodium alloys, Tungsten and Tungsten/Rhenium alloys.
Plated with 99.99% pure Gold, 3-5% by weight.
The weights and analysis refer to the Tungsten core only.
| 订货号 |
包装规格 |
| Length (Round) |
| 580-919-91 |
5m |
| 614-988-95 |
10m |
| 873-621-18 |
25m |
| 202-640-15 |
50m |
| 330-018-94 |
100m |
半岛bd体育手机客户端 参数
| Coating[涂层] |
Gold Plated Wire |
| Diameter[直径] |
0.015mm |
| Length[长度] |
5m - 100m |
| Purity[纯度] |
99.95% |
| Typical Analysis(典型分析) |
| Al |
<20 PPM |
| As |
<20 PPM |
| Bi |
<1 PPM |
| Ca |
<20 PPM |
| Co |
<5 PPM |
| Cr |
<50 PPM |
| Cu |
<1 PPM |
| Fe |
<30 PPM |
| K |
<70 PPM |
| Mg |
<1 PPM |
| Mn |
<5 PPM |
| Mo |
<40 PPM |
| Na |
<10 PPM |
| Ni |
<25 PPM |
| Pb |
<5 PPM |
| Sb |
<5 PPM |
| Si |
<20 PPM |
| Sn |
<5 PPM |
| Ti |
<5 PPM |
| V |
<15 PPM |
| Zn |
<10 PPM |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Hard ) |
311.0 |
| Bulk modulus ( GPa ) ( Soft ) |
311.0 |
| Hardness - Vickers ( kgf mm?? ) ( Hard ) |
500 |
| Hardness - Vickers ( kgf mm?? ) ( Soft ) |
360 |
| Material condition |
Soft |
| Material condition |
Hard |
| Poisson's ratio ( Hard ) |
0.280 |
| Poisson's ratio ( Soft ) |
0.280 |
| Tensile modulus ( GPa ) ( Hard ) |
411.00 |
| Tensile modulus ( GPa ) ( Soft ) |
411.00 |
| Tensile strength ( MPa ) ( Hard ) |
1920.00 |
| Tensile strength ( MPa ) ( Soft ) |
550.00 - 620.00 |
| Yield strength ( MPa ) ( Soft ) |
550.0 |
| Atomic Properties(原子属性) |
| Atomic number |
74 |
| Atomic weight ( amu ) |
183.85000 |
| Crystal structure |
Body Centred Cubic |
| Electronic structure |
Xe4f??5d?6s? |
| Ionisation potential ( No./eV ) |
1 / 7.98 |
| Ionisation potential ( No./eV ) |
2 / 17.7 |
| Natural isotope distribution ( Mass No./% ) |
183 / 14.3 |
| Natural isotope distribution ( Mass No./% ) |
182 / 26.3 |
| Natural isotope distribution ( Mass No./% ) |
186 / 28.6 |
| Natural isotope distribution ( Mass No./% ) |
180 / 0.1 |
| Natural isotope distribution ( Mass No./% ) |
184 / 30.7 |
| Photo-electric work function ( eV ) |
4.55 |
| Thermal neutron absorption cross-section ( Barns ) |
18.5000 |
| Valences shown |
2 ,3,4,5,6 |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
5.4@20℃ |
| Superconductivity critical temperature ( K ) |
0.0154 |
| Temperature coefficient ( K?? ) |
0.00480 @0-100℃ |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) |
1.12 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
4.500 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
4009 |
| Latent heat of fusion ( J g?? ) |
192.00 |
| Melting point ( C ) |
3410.00 |
| Specific heat ( J K?? kg?? ) |
133.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
173.00 @0-100℃ |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
5660 |
| Density ( g cm?? ) |
19.300 @20℃ |
其他参数
公差
