Deformation of aluminium and aluminium alloy brand representation method
1, aluminum (aluminum content is not less than 99.00%)                 1 x x x series
2, with copper as the main alloying element of aluminium alloy       2 XXX series (Al - Cu - Mg series)
3, manganese as main alloy element of aluminum alloy                   3 XXX series (Al - Mu - Cu series)
4, silicon as the main alloying elements of aluminium alloy             4 XXX series
5, primarily in the magnesium alloy element of aluminum alloy       5 XXX series
6, magnesium and silicon as main alloy element of aluminum alloy 6 XXX series
7, zinc and silicon as the main alloying element of aluminium alloy 7 XXX series
8, other alloy as the main alloying elements 8 XXX series aluminum alloy
9, standby alloy group 9 XXX series

Previous: State code profiling common international standards

Next: The classification and usage of aluminium plate