As a trading commodity, volumes of metal have continually expanded on the back of an increased interest in commodity trading and an expanding range of products have become available to trade.
Ferrous metals are those which contain iron, with the most common known as cast iron, steel and stainless steel.
Non-ferrous metals are categorised in to three subgroups, precious metals, base metals and minor metals.
Alloys consisting of iron with one or more other chemical elements are referred to as ferroalloys.