2. Conventional designation for aluminium and its alloys

2.1 Wrought products

At present, only designations in accordance with NF EN 573, parts 1 and 2, are approved.

• Part 1 concerns a four-digit numerical designation, the first of which designates the family to which the alloy belongs:

  • 1XXX or 1000 series: pure aluminum (Al ≥ 99.00%) ;

  • 2XXX or 2000 series: aluminium-copper alloys ;

  • 3XXX or 3000 series: aluminum-manganese alloys ;

  • 4XXX or 4000 series: aluminium-silicon...