THE Aluminium Automotive MANUAL Materials_Designation system

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1、Materials–DesignationsystemTableofcontents3.Designationsystem................................................................................................................23.1Designationsystemforwroughtandcastalloysandtempers.......................

2、..................23.2Wroughtalloys..................................................................................................................33.2.1Designationsystemforwroughtalloys..............................................................

3、.......33.2.2Internationaldesignationsystemsforwroughtalloys...............................................43.2.3Alloydesignationsystemforwroughtalloys(EN573).............................................53.2.4Temperdesignationsystemforwroughtalloys(E

4、N515).........................................63.2.5H-Tempersforstrain-hardeningwroughtalloys(EN515)........................................73.2.6T-Tempersforheat-treatablewroughtalloys(EN515)............................................83.3Castalloys

5、........................................................................................................................93.3.1Designationsystemforcastingalloys......................................................................93.3.2Designationsyst

6、emforcastingalloys–EN1780..................................................103.3.3Temperdesignationsystemforcastings–EN1706..............................................113.3.4DesignationsystemforalloycastingsaccordingtoAmericanStandard..............

7、..12Version2002©EuropeanAluminiumAssociation(auto@eaa.be)13Designationsystem3.1DesignationsystemforwroughtandcastalloysandtempersBackgroundThereareabout10majoralloyingelementsofthePeriodicSystem,which,inconcentrationsofbetween0.1andafewwt.-%,canbeuse

8、dtochangesignificantlythepropertiesofpurealuminiumaccordingtoneedsoftheproducer,fabricatororuser.Consequently,thereisanabundanceofaluminiumalloys,whicharecurrentlyinuse.Thereareabout500internationallyregisteredwroughtandcastaluminiumalloycompositions