Thoriated tungsten electrodes are widely used because they make good welding performance and are longlast and quite easy to use.

      A thoriated tungsten electrode operates at a temperature well below its meltingpoint compared to pure tungsten electrode. This results in a much lower rate of consumption of .theelectrode during welding, which eliminates much of the “arc wander” associated with balled pure tungsten.
      Other reasons for their use include easier arc initiation, reduced weld metal contamination, higher
current-carrying capacity, the ability to sharpen the electrodes and long life.

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