Pure tungsten is ideal for Alternating Current for aluminum alloys and magnesium alloys in low to medium amperage applications using transformer based constant current power sources where balling the tungsten is desired. Pure (Green) tungsten forms a clean, balled end when heated and provides good arc stability welding balanced or unbalanced square-wave or sine wave. 

• Pure (Green) EWP/WP
• Principle Oxide: None 
• Non-Radioactive ideal for A/C
• Balls easy, tends to spit at higher amps 
• Materials welded- Aluminum and Magnesium