Table 2: AA Designation of cast aluminium and its alloys [1, 2].

Alloying elementsSeries designation

Pure aluminiumAA1XX.X
CopperAA2XX.X
Silicon, with copper and/or magnesiumAA3XX.X
SiliconAA4XX.X
MagnesiumAA5XX.X
ZincAA7XX.X
LithiumAA8XX.X