Metals can be recovered and regenerated over and over again without losing their original properties, so, in addition to the obvious savings from their treatment and recycling from an environmental point of view, there are also energy savings compared to production from primary ones.

Ferrous metals represent the largest volume of recovered scrap and are made of iron and steel. Within the group of non-ferrous metals, the most commonly recovered are aluminium, copper, lead, zinc and their alloys.