Assertion: graphite electrode | /r/MadeOf | 1.30 percent
Facets:
value: to lanthana
type: LOCATION
value: to 1.70 percent lanthanum
type: OTHER
Source sentences:
text: Lanthanated tungsten electrodes (AWS classification EWLa-1.5) contain a minimum of 97.80 percent tungsten and 1.30 percent to 1.70 percent lanthanum, or lanthana, and are known as 1.5 percent lanthanated.