Features Wide Application: The welding tungsten electrodes are suitable for both AC & DC applications and for welding titanium alloys, copper alloys, aluminum alloys, nickel alloys, non-corrosive steels, and low-alloyed steels. Premium Lanthanum Tungsten Material: Lanthanum tungsten electrode is lanthanum oxide in tungsten, providing better welding performance. Easy to Create Electric Arc: Lanthanum tungsten electrodes are most used to replace thorium-tungsten electrodes, and it is easier to create an electric arc with a longer life, eco-friendly and no radioactivity Suitable: The lanthanated blue tips are suitable for DC small current operation, burn faster under large current. Packed with Box: The tungsten welding electrodes lanthanated electrodes are well packed and protected in a plastic box, not worry to be broken Specifications: Model: WL20 Tip Color: Blue Doping Amount: 1.8 to 2.2% Size(optional): 1.0 x 150mm / 0.04" x 5.9", 1.6 x 150mm / 0.06" x 5.9", 2.4 x 150mm / 0.09" x 5.9", 1.6 x 175mm / 0.06" x 6.89", 2.4 x 175mm / 0.09" x 6.89" Weight(approx.): 1.0*150    46g 1.6*150    75g 2.4*150    150g 1.6*175     86g 2.4*175     172g Quantity: 10pcs per box Package Includes: 1 Box(10pcs) x Lanthanum Tungsten Electrodes Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List