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| Trade mark | Added impurity | Impurity quantity | Other impurities | Tungsten | Electric discharged power | Color sign |
| WY20 | YO2 | 1.80 - 2.20% | <0.20% | The rest | 2.0 - 3.9 | Blue |
Yttrium tungsten electrodes mainly applied in military and aviation industry with narrow arc beam, high compressing strength, highest welding penetration at medium and high current.
Yttriated tungsten electrode(WY20)
