chapter  1
90 Pages

Steel Nomenclature

References ........................................................................................................................... 87

According to the iron-carbon phase diagram [1-3], all binary Fe-C alloys containing less than

about 2.11 wt% carbon* are classified as steels, and all those containing higher carbon content

are termed cast iron. When alloying elements are added to obtain the desired properties, the

carbon content used to distinguish steels from cast iron would vary from 2.11 wt%.