.1. Cast iron1.铸铁Cast iron is a general term applied to a wide range of iron-carbon-silicon alloy combination with smaller percentages of several other elements. Cast iron has been used in various industrial fields. Fig.R1-1 shows the cylinder block made by cast iron. It is an iron containing so much carbon or its equivalent. It is not malleable. Quite obviously, cast iron has a wide range of properties, since small percentage variations of its elements may cause considerable change. Cast
