The natural properties of aluminum.

Date: 2018-05-03 Author: admin Click:

Aluminum is a light metal that has a very wide distribution in nature, with about 8 percent (weight) of aluminum in the earth's crust, second only to oxygen and silicon, with a third. Aluminium is known as the second metal, and its output and consumption are second only to steel. Aluminum has special chemical and physical properties, it is one of the most commonly used industrial metals, not only light weight, hard texture, and have good ductility, conductivity, thermal conductivity, heat resistance and resistance to nuclear radiation, raw material is the important basis for the development of national economy.
The density of aluminum is 2.7, and the density is about 1/3 of the average metal. The conductivity of the aluminum conductor is about 61%, and the thermal conductivity is half of the silver. Although pure aluminum is extremely soft and malleable, it is still reliably cold processed and made of alloy to harden it. Bauxite is an important source of aluminium, and it takes two pounds of bauxite to make a pound of alumina, and two pounds of alumina for a pound of aluminum.