There are many aluminum alloys, but I can briefly introduce its classification, production and sales structure. There are eight basic alloys used in the production of aluminum. The first is the 1XXX set which is basically pure aluminum or close to 100% aluminum. Group 2XXX consists of aluminum with copper added as the main alloy. These aluminums are not considered weldable under normal conditions.
The 3XXX series, with the addition of manganese, constitute a large class of castable aluminum. The 4XXX group has silicon (not silicone!) as the additive alloy and the 5XXX group has magnesium as the main additive. In the 6XXX group, the combination of magnesium and silicon makes this group one of the most commonly used aluminum alloys.
The final alloy group is the 7XXX group, which is a high zinc content series and, like the 2XXX series, is considered a difficult alloy to weld.
The 8XXX series is a group of alloys designed for use in specialty alloys that companies can use to produce specialty alloys that are proprietary in nature and patentable as unique materials. Most of these alloys contain more than 90% aluminum, the last two positions of the alloy (like 4043) will indicate the percentage of the alloy (like 99.43% of the alloy is aluminum) This is a very brief overview of the alloys and the groupings of aluminum.
