Designations for Wrought and Cast Aluminium Alloys
The main alloying elements are copper, zinc, magnesium, silicon, manganese and lithium. Small additions of chromium, titanium, zirconium, lead, bismuth and nickel are also made and iron is invariably present in small quantities. There are over 300 wrought alloys with 50 in common use. They are normally identified by a four figure system which originated in the USA and is now universally accepted.
- AA-8000: used for electrical building wire in the U.S. per the National Electrical Code, replacing AA-1350.
- Al–Li (lithium)
- Alnico (nickel, cobalt): used for permanent magnets
- Duralumin (copper)
- Hiduminium or R.R. alloys (2% copper, iron, nickel): used in aircraft pistons
- Magnalium (5% magnesium): used in airplane bodies, ladders,etc.
- Nambe (aluminium plus seven other undisclosed metals), serveware, exclusively from the one manufacturer
- Scandium–aluminium (scandium)
- Y alloy (4% copper, nickel, magnesium):
Aluminium Alloys Presentation