Cast iron bars are alloys that contain more than 2% carbon and 1% to 3% silicon. This bar is offered in gray and ductile types. The difference in these types is the shape and distribution of graphite in their microstructure. Continuous casting eliminates porosity inclusion, burned-on impurities and surface flaws.

Cast iron scrap is an iron alloy that contains high amounts of carbon. It is a raw material for the production of new steel and cast-iron products. The steelmaking and foundry industries are dependent upon the ready availability of scrap from manufacturing operations and from the recovery of products that are no longer used or needed.