AA 6000 Series (Aluminum-Magnesium-Silicon Wrought Alloy)
Wrought alloys of aluminum (Al) with a significant presence of magnesium silicide (Mg2Si). The Mg2Si is a chemical product of magnesium (Mg) and silicon (Si). This is why the inclusion of those elements does not have the same effects in the 6000 series as it does in other series. The Mg2Si is not declared in alloy composition lists. The constituent magnesium and silicon, however, are.