Page 12 - Motor Fan illustrated Special Edition
P. 12

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

                                                                             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
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