Steel can be recycled almost indefinitely without losing its properties. Obsolete ferrous scrap is derived from steel-containing goods at the end of their useful lives (e.g.a drinks can, a 15-year-old car, a 50-year-old building). Revert scrap is steel waste produced and recycled within a steelworks. New production scrap is generated when steel is cut and formed during the manufacturing of finished products or components. The scrap is returned to steelworks and foundries.
Ferrous scrap is mainly used in electric arc furnace steelmaking. About 500 million tonnes of scrap are melted each year.