Assertion: molybdenum | /r/HasProperty | standard alloying element
Facets:
value: for years
type: TEMPORAL
Source sentences:
text: For years, Mo has been a standard alloying element used to produce creep-resistant steel capable of withstanding temperatures up to 530 °C .
text: Well, for years, Mo has been a standard alloying element used to make creep-resistant steel that could withstand temperatures up to 530 oC .