Cast iron: Learn about cast iron

Learn about cast iron , a class of iron -carbon alloys with various forms and applications. Find out how cast iron is made, what alloying elements affect its properties, and how it was used in ancient China and Europe. Cast iron generally refers to gray iron, ductile iron, and malleable iron, which is an iron casting with a carbon content of more than 2%. Cast steel generally refers to ordinary carbon steel and alloy steel, which is a steel casting with carbons contents of less than 2%. The four basic types of cast iron - white iron , gray iron , ductile iron and malleable iron .