What is Aluminum

The chemical element aluminium, atomic number 13 and symbol Al. It is a silvery, ductile metal. It is generally found in nature as bauxite ore and is known for its superior resistance to oxidation. The basis of this resistance lies in its passivation property. It is used in the production of millions of different products in many branches of industry and has a very important place in the world economy. Structural components made of aluminum are indispensable for the aerospace industry. It finds wide usage area in transportation and construction industry, which requires lightness and high strength properties.

Properties

Aluminum is a soft and light metal with a dull silvery color. This color comes from the thin oxide layer that forms on it when exposed to air. Aluminum is non-toxic and non-magnetic. It doesn't spark. While the tensile strength of pure aluminum is about 49 megapascal (MPa), this value increases to 700 MPa when alloyed. Its density is about one third that of steel or copper. It can be easily forged, machined and cast. It has very superior corrosion properties because the oxide layer formed on it is protective. Electrical conductivity is 64.94% IACS (pure Al at 2 °C). Its melting temperature is 660 °C, and its boiling temperature is 2519 °C.