Applications of Al

Aluminium is the most abundant metal in the earth's crust, and is valued industrially for being a good conductor of both electricity and heat while also resisting corrosion well. These properties translate into a wide range of uses: many heat exchangers, heat sinks, and everyday cooking vessels are made of aluminium, exploiting its thermal conductivity; it is used as thin wraps (aluminium foil) and in food packaging materials. Pure aluminium by itself is not very strong, but its ALLOYS with copper, manganese, magnesium and silicon are both lightweight and strong, and these alloys are what is actually used in the design of aeroplanes and other forms of transport, where the strength-to-weight ratio matters enormously. Because aluminium shows high resistance to corrosion, it is also used in the design of chemical reactors, medical equipment, refrigeration units and gas pipelines, where a corrosion-resistant material is essential. Finally, bein …