1. According to the content of alloying elements, aluminum sheets can be divided into: 1××× is industrial pure aluminum (Al), 2××× is aluminum-copper alloy aluminum plate (Al--Cu), 3××× is aluminum Manganese alloy aluminum plate (Al--Mn), 4××× is aluminum-silicon alloy aluminum plate (Al--Si), 5××× is aluminum-magnesium alloy aluminum plate (Al--Mg), 6××× is Aluminum-magnesium-silicon alloy aluminum plate (AL--Mg--Si), 7××× is aluminum-zinc alloy aluminum plate [AL--Zn--Mg--(Cu)], 8××× is aluminum and other elements . Generally, each series must be followed by three digits. Each digit must have a number or a letter. The meaning is: the second digit indicates the number of controlled impurities; the third and fourth digits indicate the lowest percentage of pure aluminum and aluminum content after the decimal point. content.
2, according to the shape can be divided into: round aluminum rod, square aluminum rod, hexagonal aluminum rod and so on.
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