Aluminum

 

Aluminum is a light weight, silver-colored metal that can be formed into almost any shape. It can be rolled into thick plates for armored tanks or into thin foil for wrappers. It may be drawn into wire or made into cans. Aluminum is the third most abundant element in the earth's crust after oxygen and silicon. Aluminum is a comparatively new industrial metal that has been produced in commercial quantities for just over 100 years. Pure aluminum is soft and has little strength. Small amounts of elements like copper, magnesium, zinc etc., are added to pure aluminum to give strength.

 

Aluminum Properties

 

  • Resists corrosion - a thin protective layer is formed when the aluminum metal is exposed to atmosphere and this prevents rusting of aluminum surface.
  • Chemical resistance
  • Easily machined
  • High strength to weight ratio - weighs about one-third as much as copper
  • Good electrical conductor
  • Excellent conductor of heat
  • Can reflect heat and light
  • Non-magnetic
  • Readily formed
  • Can be drawn