What is the difference between iron and cast iron?

The difference between iron and cast iron comes down to content. Iron is generally pure iron, a chemical element that is a solid metal at room temperature. Cast iron is a mix of iron, carbon, silicon, manganese, sulfur, phosphorus and other elements. Both iron and cast iron can be used to produce furniture, cookware, decorative objects and other items. Generally, cast iron is heavier than iron. Shop an assortment of iron and cast iron pieces on 1stDibs.