The Zirconiated Tungsten Electrodes (AWS & ISO classification EWZr-1) contain a minimum of 99.1% tungsten and 0.15%-0.4% zirconium.
- Can only be run on AC
- Ball well and retain the shape
- Incredibly stable arc
- As a strong metal it doesn't split or spit and contaminate the weld
- Handles high amps well (perfect for aluminium)