Assertion: iron's carbon content | /r/HasProperty | high
Facets:
value: very
type: DEGREE
Source sentences:
text: Pig iron has a very high carbon content, typically 3.8–4.7%, along with silica and other constituents of dross, which makes it very brittle and not useful directly as a material except for limited applications.
text: It is superior for most purposes to cast iron, which is overly hard and brittle owing to its high carbon content.