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| Designation | Oxide Additive | Impurities Content | Tungsten content | Color Sign | |
| Nature | Content % | ||||
| WC20 | CeO2 | 1.8-2.2 | <0.20 | Balance | Grey |
2% ceriated tungsten contains a nominal 2wt-% of cerium oxide (CeO2). Cerium is different from thorium 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. In manual applications, the ceriated tungsten will provide slightly different electrical characteristics than the Thoriated tungsten but generally the operator will see no difference. Generally used to weld carbon and stainless steel, nickel alloy and titanium.
