Brand is a represent meaningful in aluminium alloy, the following is in accordance with the 7075 t651 aluminum brand for example. The first 7 aluminum and aluminum alloy group - aluminum zinc magnesium alloy. Aluminium and aluminium alloy group is divided into nine categories. With 1, 3, 5, 6, 7 series aluminum, aluminum alloy is given priority to, other series used in the actual use of less likely.
The first category: 1 series: industrial pure aluminum
The second category: 2 series: aluminum copper alloy
Third class: 3 series: aluminum manganese alloy
Class 4:4 series: aluminum silicon alloy
Class 5:5 series: aluminum magnesium alloys
Class 6:6 departments: magnesium aluminum silicon alloy
Class 7:7 series: aluminum zinc magnesium copper alloy
Class 8:8 series: other alloys
Class 9:9: spare alloy
