Assertion: graphite electrode | /r/MadeOf | 1.70 to 2.20% thorium
Facets:
Source sentences:
text: 2% thoriated tungsten electrodes (AWS classification EWTh-2) contain a minimum of 97.30% tungsten and 1.70 to 2.20% thorium.
text: Thoriated tungsten electrodes (AWS classification EWTh-2) contain a minimum of 97.30 percent tungsten and 1.70 to 2.20 percent thorium and are called 2 percent thoriated.