CK Worldwide 2% Thoriated (Red) Tungsten, 10pk

2% Throriated Tungsten offers good arc starting and is ideal for high current requirements. It is also good for low-amperage AC applications using a modified point. Red Principal Oxide: 1.7_2.2% Thorium Oxide Materials Welded: Carbon Steel, Stainless Steel, Nickel Alloy, Titanium, and Copper Radioactive - best for use in Direct Current (D/C) applications using transformer-based constant current power sources Best for use on non-corroding steels, titanium alloys, nickel alloys, copper alloys Good D/C arc starts and stability Medium erosion rate; medium amperage range; medium tendency to spit