High carbon steel has less carbon than cast iron. Cast iron contains substantial amounts of Ledeburite, while steel contains none or at most negligible Ledeburi

High carbon steel has less carbon than cast iron. Cast iron contains substantial amounts of Ledeburite, while steel contains none or at most negligible Ledeburite inclusions. https://upload.wikimedia.org/wikipedia/commons/8/8a/Iron_carbon_phase_diagram.svg https://upload.wikimedia.org/wikipedia/commons/8/8a/Iron_car...