There are a large number of non-ferrous materials, covering every metal and alloy that does not contain iron. Non-ferrous metals include aluminium, copper, lead, nickel, tin, titanium and zinc, as well as copper alloys like brass and bronze.
Non-ferrous metals aren't metallic because they don't contain significant amounts of iron. Aluminum, lead, copper, tin, zinc and brass (an alloy of copper and zinc) are all non-ferrous. Precious metals like gold and silver fall into this category, too. The two types of metal differ when it comes to prices.