The EWZr-1 electrode contains what percentage of Zirconia?

The EWZr-1 electrode is specifically formulated to include a zirconia content that generally falls within the range of 0.1-0.4%. This low percentage of zirconia enhances the electrode's performance by improving arc stability and providing excellent current transfer characteristics, which are crucial for achieving high-quality welds in aluminum and other non-ferrous metals.

Choosing this specific range is important in ensuring that the electrode maintains its desired properties while performing adequately across various welding applications. The careful balance of zirconia content contributes to the electrode's function without introducing negative characteristics that could arise from higher zirconia levels, such as increased hardness that might affect the electrode's usability. Thus, the range of 0.1-0.4% is optimal for the EWZr-1 electrode's intended application in gas tungsten arc welding.