Aluminium is the most widely used non-ferrous metal. It is used in a vast variety of applications from transportation, construction to packaging. Its versatility stems from its unique properties. It has a low density, is non-toxic and has a high thermal conductivity together with excellent corrosion resistance. It is also non-magnetic, non-sparking and is the second most malleable metal and the most ductile. It can be easily cast, machined and formed and is used in any industry where strong, light, easily constructed material is needed. Its low-density conductivity is invaluable and its alloys are used in many applications such as the aeronautical industry.