PRESENTED BY:
AVINANDAN SANDILYA

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ALUMINIUM AND ITS ALLOYS
INTRODUCTION
 It is the third most abundant element of 8% on earth crust and normally found in oxide forms. It is a non-ferrous metal.
 It does not occur free in nature.
 Therefore it remained unknown until the nineteenth century.
ORES OF ALUMINIUM
ALLOYS OF ALUMINIUM
Designations of wrought aluminium alloys
Non-heat-treatable alloys
1xxx series (Super-purity and commercial-purity aluminium)
3xxx series (Al-Mn and Al-Mn-Mg alloys)
5xxx series (Al-Mg alloys)
8xxx series (Miscellaneous alloys)
Heat-treatable alloys
2xxx series (Al-Cu and Al-Cu-Mg alloys)
6xxx series (Al-Mg-Si alloys)
7xxx series (Al-Zn-Mg and Al-Zn-Mg-Cu alloys)
BASIC PROPERTIES:
 High corrosion resistance
 • Excellent machining properties
 • Light weight
 • High thermal/electrical conductivity.
 • High ductility/easily deformable
Applications: