23.4. Non-ferrous metals
The more common non-ferrous metals are listed below, together with some of their properties and applications. Once again, only a broad treatment is possible, and in properties may be achieved by variation in the composition and heat the various alloys.
(i) Aluminium Pure aluminium is a soft and ductile material. Its distinctive property is its light density it has a relative density of about 2.7. It is a good