37
Lanthanum Tungsten (gold) electrodes are universal TIG electrodes that can be used for both direct and alternating current. They are particularlyrecommended for welding pure materials or Aluminium, Titanium, Nickel, Copper and Magnesium alloys. The Lanthanum oxide level (1.5%) in their composition gives them a slower wear and a less current consuming ignition than WR2 electrodes. They are recommended for low currents.