Composition
WL10 WL15 WL20
Color Black Gold Blue
Remainder
Eg,WL15 Tungsten Electrode
1.5% lanthanated tungsten electrodes (AWS classification EWLa-1.5) contain a minimum of 97.80% tungsten and 1.30 -1.70% lanthanum . These electrodes have excellent arc starting, low-burn-off rate, good arc stability and excellent re-ignition characteristics，many of the same advantages as ceriated electrodes. 1.5% lanthanated electrodes also closely resemble the conductivity characteristics of 2% thoriated tungsten, meaning, in some cases, it can replace 2% thoriated without having to make significant welding program changes. these electrodes are suitable for AC welding , welding steel and stainless steel on DC or the AC from squarewave power sources.
Model | Oxide addition | Contents % | Impurites % | Tungsten % | Color |
WL10 | La2o3 | 0.90-1.20 | ≤0.02 | Remainder | Black |
WL15 | La2o3 | 1.40-1.60 | ≤0.02 | Remainder | Gold |
WL20 | La2o3 | 1.90-2.10 | ≤0.02 | Remainder | Blue |
