Aluminium Alloy Effects and Specifcation Guide

Aluminium is mostly used in the form of alloys of pure aluminium in combination with other elements in order to improve the mechanical properties of the metal, especially to increase strength and corrosion resistance. Alloy elements to achieve certain properties on the final product are listed below:

Element

Effect

Iron (Fe) increases the strength
Silicon (Si) higher strength in combination with Mg
Copper (Cu) increases the mechanical properties, reduces corrosion-resistance
Magnesium (Mn) increases the mechanical properties, changes deep-drawing quality
Manganese (Mg) high strength after cold forming
Chromium (Cr) more strength in combination with elements like Cu, Mn, Mg
Titanium (Ti) higher strength
Zinc (Zn) reduces corrosion-resistance

 

 

Main Aluminium-alloy Classifications

Alloys with their main elements

Series

Typical Applications

99.0% min Aluminium
1XXX
foil, Litho-sheet, sheet
Copper
2XXX
aircraft industry
Manganese
3XXX
cans, building, radiators
Silicon
4XXX
heat exchangers & engineering
Magnesium
5XXX
cans, automobile, facades, building, transportation
Magnesium and Silicon
6XXX
automobile, building, transportation
Zinc
7XXX
aircraft industry, radiators
other elements
8XXX
foil (Fe), aircraft industry (Li)