Quote:
Originally Posted by Alan Wheeler  ...Or you may end up with a new form of alloy. Copper and Aluminium fused together. Hmmm, aluopper, coppuminium, ?? :-) |
Copper is a common alloying element in Aluminum.
The classification of Aluminum alloys is established by the International Alloy Designation System (IADS), where the first digit* indicates the alloy group according to the major alloying element.
Aluminum-Copper alloys are designated “2 series” (2xxx or 2xx.x).
Wrought Al-Cu (2xxx) contains 1.9% - 6.8% Cu.
Cast Al-Cu (2xx.x) contains 4% - 4.6% Cu.
Duraluminum is Aluminum alloyed /w Copper, Manganese and Magnesium - AA2024.
* A modification of the original alloy or impurity limits is indicated by a serial letter before the numerical designation.