Assertion: iron | /r/HasProperty | brittle
Facets:
value: due to the higher percentage of carbon
type: CAUSE
value: very
type: DEGREE
Source sentences:
text: When iron is simply melted and run into any mold, its texture is granular, and it is so brittle as to be quite unreliable for any use requiring much tensile strength.
text: It is superior for most purposes to cast iron, which is overly hard and brittle owing to its high carbon content.
text: Pig and cast iron, the two basic materials of wrought iron, are very brittle due to the higher percentage of carbon and have a lower melting temperature as compared to steel and iron.