China Thoriated Tungsten Electrode (WT10 WT20 WT30 WT40), Find details about China Tungsten Electrode, Welding Electrode from Thoriated Tungsten Electrode (WT10 WT20 WT30 WT40)
mark | added impurity | impurity content % | other impurity content % | tungsten % | color | electron work function |
wt10 | ThO2 | 0.8-1.2 | <0.2 | rest | yellow | 2.6 |
wt20 | ThO2 | 1.8-2.2 | <0.2 | rest | red | 2.7 |
wt30 | ThO2 | 2.8-3.2 | <0.2 | rest | purple | 3.0 |
wt40 | ThO2 | 3.8-4.2 | <0.2 | rest | orange | 3.5 |