Page 12 - Motor Fan illustrated Special Edition

Basic aluminum alloy information

Lightweight, strong, corrosion-resistant, highly formable, and featuring a beautiful surface,
a great variety of aluminum alloys are used in automobile production.

Aluminum alloys can be roughly divided into wrought Wrought aluminum alloys are processed by rolling,
alloys and cast alloys. These two categories can be extrusion, etc., into a wide range of different shapes,
further divided into heat-treatable alloys and including sheets, foil, shapes, tubes, and bars.
non-heat-treatable alloys. The properties of aluminum alloys change with the types
There are two different types of cast aluminum alloys: and amounts of added elements.
sand mold/metal mold alloys and die-cast alloys.

Aluminum alloys

Wrought aluminum alloys Cast aluminum alloys

Sand mold/metal mold alloys Die-cast alloys

Non-heat-treatable alloys Heat-treatable alloys Non-heat-treatable alloys Heat-treatable alloys Heat-treatable alloys

Pure aluminum Al-Cu alloys Al-Si alloys Al-Cu-Mg alloys Al-Si alloys
(1000 series) (2000 series)

Motor Fan illustrated
Al-Mn alloys Al-Mg-Si alloys
(3000 series) (6000 series) Al-Mg alloys Al-Cu-Si alloys Al-Si-Mg alloys

Al-Si alloys Al-Zn-Mg alloys Al-Si-Cu-Mg alloys Al-Mg alloys
(4000 series) (7000 series)
Al-Mg alloys Al-Si-Cu alloys Al-Si-Cu alloys
(5000 series)

Al-Si-Mg alloys Al-Si-Cu-Mg alloys

Al-Cu-Ni-Mg alloys

ALUMINUM AUTOMOBILE TECHNOLOGY
Al-Si-Ni-Cu-Mg alloys

12 Al-Si-Cu-Mg-Ni alloys

The International Alloy Designation System

Rolled aluminum alloys are classified in There are currently more than 400 reasonable to say that rolled
accordance with the International Alloy different aluminum and aluminum aluminum alloy specifications are
Designation System (IADS) based on an alloys registered and administered more internationalized than those of
agreement to which 22 countries and by the system. any other metallic material. Cast
24 organizations are a party. Four-digit The European standard ENAW-5052 aluminum alloys, on the other hand,
code numbers are used to identify alloy and the Japan Industrial are still not subject to an international
alloys, and the various alloys are Standard A5052 alloy share the alloy registration system like the one
precisely classified according to the same four-digit number (5052), and for rolled aluminum alloys.
types and amounts of added elements this means that the chemical
and impurities they contain, and their constituents of the alloys are exactly Reference from European Aluminium
various threshold limit values. the same. For this reason, it is www.european-aluminium.eu