Assertion: cast iron | /r/HasProperty | alloys of iron
Facets:
value: primarily
type: DEGREE
Source sentences:
text: Cast irons are primarily alloys of iron that contain more than 2% carbon and 1% or more silicon.
text: Cast iron, an alloy of iron that contains 2 to 4 percent carbon, along with varying amounts of silicon and manganese and traces of impurities such as sulfur and phosphorus.