Tungsten electordes WL20 blue
Tungsten electrodes WL20 blue
This electrodes are popular due to the relative ease of striking an arc and lower amperage required. They perform exceptionally well in both AC & DC applications and are a popular general use electrode. Blue electrodes are effective for welding aluminium, magnesium, nickel, copper, titanium, low-alloyed steels, and non-corroding steels.
Composition: 98% tungsten and 2% lanthanum oxide.