Assertion: mild steel's coating | /r/Synonym | rust
Facets:
value: commonly
type: DEGREE
Source sentences:
text: When steel is oxidized, however, the result is to generate a coating of ferric oxide, Fe 2 O 3 , more commonly known as rust, which offers little to no protection to the underlying metal and may, in fact, increase the likelihood of the underlying metal layer to corrode.