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EWLa-1 (1.5% Lanthanated)


Alloy Type:

EWLa-1.5 designates a tungsten electrode containing 1.3-1.5 wt-% of dispersed lanthanum oxide (La2O3) for enhanced arc starting and stability, reduced tip erosion rate, and extended operating current range.  These electrodes can be used as non radioactive substitutes for 2% thoriated tungsten as the operating characteristics are very similar.  Lanthanated tungsten can be used for both DC and AC application.

 

 Chemical Composition Requirements

AWS A5.12M/A5.12:2009

Principle Oxide Addition Mass Percent Oxide Addition Impurities, Mass % Tungsten, Mass % Color Code
La2O3 1.3 to 1.7 0.5 Max Balance Gold

 

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