1. AA-8000: used for electrical building wire in the U.S. per the National Electrical Code, replacing AA-1350.[1] 2. Al-Li (lithium) 3. Alnico (nickel, cobalt): used for permanent magnets 4. Duralumin (copper) 5. Hiduminium or R.R. alloys (2% copper, iron, nickel): used in aircraft pistons