Metal - Non Ferrous
In metallurgy, a non-ferrous metal is a metal, including alloys, that does not contain iron in appreciable amounts. Generally more expensive than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight, higher conductivity non-magnetic property or resistance to corrosion. Some non-ferrous materials are also used in the iron and steel industries. Non-ferrous metals were the first metals used by humans for metallurgy.