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Lanthanated Tungsten Electrodes
1、Tungsten Electrodes characteristics
Lanthanated Tungsten Electrode is a non-radioavtive material with good welding performance. Its electric conductivity is most closed to that of 2% Thoriated Tungsten. Welders can easily replace Thoriated Tungsten Electrodes with Lanthanated without any changes of welding program. In Europe and Japan, Lathanated Tungsten has been the most popular alternative to 2% Thoriated Tungsten for most applications. This tungsten is used primarily for DC welding but will also show good results for AC welding.
| Designation | Oxide Additive | Impurities Content | Tungsten Content | Color Sign | |
| Category | Content% | ||||
| WL10 | La2O3 | 0.8-1.2 | <0.20 | Balance | Black |
| WL15 | La2O3 | 1.3-1.7 | <0.20 | Balance | Golden Yellow |
| WL20 | La2O3 | 1.8-2.2 | <0.20 | Balance | Sky Blue |
2、Product Standard
ISO 6848 ANSI/AWS A5.12/A5.12M-98
3、Size
1)Diameter:? 0.5-25mm2)Length:?? 150mm, 175mm, 178mm,? any other length at customer request.
4、Recommended Tungsten Electrodes for Various Welding Currents
| Diamter of Electrode | DC(A) | AC(A) | |||
| In | Mm | Straight Polarity(-) | Reverse Polarity(+) | Unbalanced Waves | Balanced Waves |
| 0.04" | 1.0 | 15-80 | ? | 10-80 | 20-60 |
| 1/16" | 1.6 | 60-150 | 10-18 | 50-120 | 40-100 |
| 0.079" | 2.0 | 100-200 | 12-20 | 70-160 | 60-130 |
| 3/32" | 2.4 | 150-250 | 15-25 | 80-200 | 80-150 |
| 1/8" | 3.2 | 220-350 | 20-35 | 150-270 | 120-200 |
| 5/32" | 4.0 | 350-500 | 35-50 | 220-350 | 170-260 |
| 3/16" | 4.8 | 420-650 | 45-65 | 240-420 | 220-340 |
| 1/4" | 6.4 | 600-900 | 65-100 | 360-560 | 250-450 |
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