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Tungsten-Rhenium Thermocouple Wire WRe3/25 in Vacuum & Inert Atmospheres
Type: WRe3/25, WRe5/26, WRe5/20
Temperature range: 0-2300°C, it can be used in vacuum, hydrogen and inert atmosphere
| Grade | Chemical composition % | |
| W | Re | |
| WRe3 | 97 | 3 |
| WRe25 | 75 | 25 |
| WRe5 | 95 | 5 |
| WRe26 | 74 | 26 |
Normal diameter and tolerance
| Grade | WRe5-WRe26 |
| Diameter (mm) | 0.25mm. 0.35mm, 0.5mm, 1.0mm |
| Tolerance (mm) | ±0.02 |
The tolerance for the wire specially used in measuring molten steel
| Grade | WRe3-WRe25 | ||
| Diameter(mm) | 0.08 | 0.1 | 0.5 |
| Tolerance(mm) | ±0.01 | ±0.02 | ±0.02 |
Temperature measuring tolerance
| Thermocouple type | Temperature range(℃) | Tolerance |
| WRe3/25 | 0~400 | 4.0℃ |
| 400~2300 | ±0.25% | |
| WRe5/26 | 0~400 | 4.0℃ |
| 400~2300 | ±0.5% |
Density and Resistivity at 20°C
| Type | WRe3 | WRe25 | WRe5 | WRe26 |
| Density(g/cm3) | 19.16 | 19.58 | 19.2 | 19.6 |
| Resistivity(μΩcm) | 0.0929 | 0.2667 | 0.1206 | 0.3012 |
* Application: Tungsten Rhenium alloy have good electrical properties, ductility and easy to be processed. It can be used as thermocouple for high temperature furnace
