
If you are firing up an older transformer TIG machine to weld aluminum, there is no substitute for the classic Green Pure Tungsten. These 1/8-inch electrodes are the industry standard for AC TIG welding, known for their ability to form a perfect, shiny ball at the tip. That balled end is crucial—it stabilizes your arc, giving you that smooth, buttery feel you need when laying down beads on aluminum or magnesium.
Why choose Pure Tungsten? It's all about the arc characteristic on Alternating Current. Modern inverters can handle sharpened rare-earth tungstens, but if you are running a Sine Wave machine (like an old Syncrowave or Dialarc), those sharpened points just blow off or split. Green tungsten handles the heat of the cleaning cycle perfectly, balling up to create a wide, soft arc that cleans the oxide layer while penetrating the base metal. Plus, because it's 99.5% pure tungsten, you don't have to worry about radioactive additives like you do with Red (Thoriated) tungsten.
These electrodes come in a standard 7-inch length and are 1/8" diameter, making them robust enough to handle higher amperage ranges often required for aluminum plate. They are strictly for AC use—don't try to use them for steel or stainless on DC, or you'll be fighting the arc the whole time. But for their intended purpose, they are unbeatable.
| Additional Information |
|---|
| Tungsten Type:Pure |
| Used To Weld:Aluminum |
| Diameter:3.2mm (1/8") |
| AWS Classification:EWP |
| Color Code:Green |
| Length:7 in |
| Material Composition:99.5% Minimum Tungsten |
| Recommended Current:AC (Alternating Current) |
| Tip Preparation:Balled |
| Packaging Description:10 pcs in a pack |
| Used To Weld?:Aluminum |