Zirconated tungstens are most commonly used for AC welding of aluminium and magnesium alloys. These electrodes can retain a balled end when welding, which results in less tungsten permeation and good corrosion resistance. It balls up well in AC welding and has a more stable arc than pure tungsten. Excellent performance in AC welding, especially under high load current. It is not replaceable by any other electrode. It also resists contamination well in AC welding.
