Inert gas welding ensures the highest quality of joints, but requires absolute stability of the electronic arc. The arc stability is highly dependent on the electrodes used and can be achieved only when the quality of the electrodes used remains high.
| Electrode diameter[Ø mm] | Alternating current
AC/DC |
Direct current
DC |
|
| An electrode made of pure tungsten
[A] |
Tungsten electrode with additions
[A] |
An electrode with an addition of orium [A] |
|
| 1,6 | 30-70 | 60-100 | 70-150 |
| 2,4 | 70-100 | 100-160 | 150-225 |
| 3,2 | 100-150 | 140-220 | 200-275 |
| 4,0 | 150-225 | 200-275 | 250-350 |
| Electrode type | Diameter | Length | Current type | Typical applications | Welding advantages | Recommendation |
| WT 20 „red” | 1,6mm 2,0mm 2,4mm 3,2mm 4,0mm |
175 mm | DC | – non-alloy steels – alloy steels – titanium alloys – nickel alloys – copper alloys |
– may be replaced with electrodes WC 20, WL 15 GOLD – not suitable for AC |
Possible health hazard due to improper sharpening caused by carcinogenic thorium particles |
