Lanthanated tungsten electrode contains 0.8%-2.2% lanthana, the electron work is 2.8eV-30.eV. It’s easy to start arc and sustain the stability at low current, it is mainly used in DC, performances well in AC welding. Lanthana has better of creep resistance, strong ductility, lower stirring rate, therefore the tip temperature of lanthanated lower, which helps to prevent grain from becoming larger, the service life of electrode can be increased substantially, without overload current, the life of lanthanated tungsten electrode is longer than thoriated tungsten electrode. It is particularly good at preventing thermal shock. When you ignore repeatedly in the welding of short cycle, it can be welded well and prevents from pollution.