In the common language of the world of industry and engineering, it is called standard. The use of standards facilitates the transfer of information, the most common standard in the classification of aluminum alloys is the AA standard, which is an abbreviation of the English word Aluminum Association. According to this standard, aluminum is divided into 8 main groups and They are named with 4 digits, which are written as 1xxx, 2xxx, 3xxx, 4xxx, 5xxx, 6xxx, 7xxx, 8xxx, which are usually called the series of one thousand, two thousand, three thousand, etc., which we will examine further. did
1) Aluminum 1xxx Aluminum Alloys
Hazarke series aluminum is written as (1xxx), aluminum is almost pure, and has low strength, and it is used in building decorative devices and making electronic circuits. 1xxx series aluminum alloys have high ductility and good corrosion resistance and can be easily welded.
2) 2xxx Series Aluminum Alloys
2xxx series aluminum alloys have copper element in their composition, which is used in air and space industries and machine parts. 2xxx series aluminum alloys have good machinability and have very poor welding, so it is recommended to avoid their welding, and compared to other aluminum alloys, they have little corrosion resistance, which are usually used in anodized form in the industry.
3xxx series aluminum alloys
3xxx series aluminum alloys have manganese element in their composition and have features such as high corrosion resistance and high strength. And they are used in the construction of pressure tanks and air conditioning systems, and they also have very good weldability.
4xxx Aluminum alloys
4xxx series aluminum alloys have silicon element in their composition, and due to the presence of silicon element, they have a lower melting point than other aluminum alloys that are used in the production of welding wire.
2) 5xxx Series Aluminum Alloys
6xxx series aluminum alloys
6xxx series aluminum alloys have two elements magnesium and silicon in their composition and are used in aviation, marine, pipe making and car rim manufacturing industries and have high corrosion resistance and good formability. Usually, 6xxx series aluminum alloys are referred to as aviation industry alloys.
2) Aluminum 7XXX Aluminum Alloys
7xxx series aluminum alloys have zinc element in their composition, and are mostly used in air and space industries and have high strength and high corrosion resistance.
1) Aluminum 8xxx Aluminum Alloys
8xxx series aluminum alloys are a new series of aluminum alloys that have some elements in their composition and have high corrosion resistance and machinability.