Scrap metal refers to pieces of metal that are no longer useful in their current form and are often discarded. This metal can come from various sources, including old vehicles, appliances, construction materials, and industrial waste. Common types of scrap metal include steel, aluminum, copper, and brass. Recycling scrap metal is an important process that helps conserve natural resources and reduce waste. When recycled, metals can be melted down and reformed into new products, which saves energy and reduces the need for mining new materials. This process contributes to a more sustainable environment.