1) 2% thoriated tungsten contains a nominal 2wt-% or thorium oxide (ThO2) that is evenly dispersed throughout the entire length of the tungsten. The most common type of tungsten used today. Provides excellent resistance from weld pool contamination... - Update: 2007-03-12

1) 2% ceriated tungsten contains a nominal 2wt-% of cerium oxide (CeO2). Ceriated is different from thoriated as it is not a radioactive material. Ceriated tungsten also tends to last longer than thoriated and can be used proficiently with AC or DC. ... - Update: 2007-03-12

1) Lanthanated tungsten electrode attracts close attention and become popular in international welding area for its unique welding performance; it is easy to use under AC or DC conditions; lanthanated electrodes operate at a slightly different arc vo... - Update: 2007-03-12

1) Pure tungsten contains a minimum of 99.5% tungsten with no other alloying elements. This allows the tip to form a clean, balled end which provides good arc stability on AC. It is generally used in the welding of aluminum and magnesium alloys (AC)... - Update: 2007-03-12

1) Zirconiated tungsten is excellent for AC welding due to favorable retention of balled end, high resistance to contamination, and good arc starting 2) Color mark: WZr8 (white) 3) Other impurity: a??0.20% 4) Diameter: 1.0 - 12.0mm 5) Length: 50.... - Update: 2007-03-12