Scrap metal may refer to iron metal wherein iron is melted again and reworked. Scrap metal makes use of discarded metal and sold scrap metal recycling companies. Scrap metal is used in both business and residential environments. Scrap metal is suitable for reprocessintg. Recycled scrap metal saves energy and reduces air pollution. Scrap metal recycling also records increases in savings in raw materials used and reduction in mining wastes.