1)Diameter: 1.0 -10.0mm 2)Length of tungsten electrode:50mm/75mm/150mm/175mm 3)Quality: Ground Finish / Polish Finish
WT20 2% Thoriated tungsten
| Tungsten Electrode Composition | ||||||
| Designation | Composition | |||||
| Dioxide | Dioxide in (%) | Impurities (%) |
| Color Mark | Standards | |
| WT10 | ThO2 | 0.80-1.20 | ≤0.20 | Remainder | Yellow | ISO6848 AWS A5.12 |
| WT20 | ThO2 | 1.70-2.20 | ≤0.20 | Remainder | Red | ISO6848 AWS A5.12 |
| WT30 | ThO2 | 2.80-3.20 | ≤0.20 | Remainder | Purple | ISO6848 AWS A5.12 |
| WT40 | ThO2 | 3.80-4.20 | ≤0.20 | Remainder | Orange | ISO6848 AWS A5.12 |
Thoriated tungsten electrodes (AWS classification EWTh-2) contain a minimum of 97.30 percent tungsten and 1.70 to 2.20 percent thorium and are called 2 percent thoriated. They are the most commonly used electrodes today and are preferred for their longevity and ease of use. Thorium increases the electron emission qualities of the electrode, which improves arc starts and allows for a higher current-carrying capacity. This electrode operates far below its melting temperature, which results in a considerably lower rate of consumption and eliminates arc wandering for greater stability. Compared with other electrodes, thoriated electrodes deposit less tungsten into the weld puddle, so they cause less weld contamination.
We can malke different kinds of diameter and length tungsten electrodes according to clients requirement.
Welcome to your inquiry, we will quote you best price.
WT20 2% Thoriated tungsten electrode for tig Welding
