鋁合金化學(xué)成分標(biāo)準(zhǔn)-國(guó)際版2009-圖文

InternationalAlloyDesignationsandChemicalCompositionLimitsforWroughtAluminumandWroughtAluminumAlloys1525WilsonBoulevard,Arlington,VA22209WithSupportforOn-lineAccessFrom:AluminumExtrudersCouncilAluminiumFederationofSouthAfricaAustralianAluminiumCouncilLtd.EuropeanAluminiumAssociationJapanAluminiumAssociationAlroS.A,RomaniaRevised:February2009Supersedes:April2006?Copyright2009,TheAluminumAssociation,Inc.Unauthorizedreproductionandsalebyphotocopyoranyothermethodisillegal.UseoftheInformationTheAluminumAssociationhasuseditsbesteffortsincompilingtheinformationcontainedinthispublication.AlthoughtheAssociationbelievesthatitscompilationproceduresarereliable,itdoesnotwarrant,eitherexpresslyorimpliedly,theaccuracyorcompletenessofthisinformation.TheAluminumAssociationassumesnoresponsibilityorliabilityfortheuseoftheinformationherein.AllAluminumAssociationpublishedstandards,data,specificationsandothermaterialarereviewedatleasteveryfiveyearsandrevised,reaffirmedorwithdrawn.UsersareadvisedtocontactTheAluminumAssociationtoascertainwhethertheinformationinthispublicationhasbeensupersededintheinterimbetweenpublicationandproposeduse.CONTENTSPageFOREWORD(iSIGNATORIESTOTHEDECLARATIONOFACCORDii-iiiREGISTEREDDESIGNATIONSANDCHEMICALCOMPOSITIONLIMITS1-13Footnotes..(14TABLEOFNOMINALDENSITIESFORACTIVEALLOYS15-20TABLEOFINACTIVEALLOYDESIGNATIONS21-22TableofChemicalCompositionLimitsforInactiveOriginalAlloys(23CROSSREFERENCESOFINTERNATIONALDESIGNATIONS—DECLARATIONOFACCORD(DOATOISO(24RECOMMENDATIONTOTHEDECLARATIONOFACCORD(25Footnotes(26AppendixA—UseofDesignations(27AppendixB—DeactivationofRegisteredAlloys(27AppendixC—GeneralGuidelinesforDeterminingCompliancewith"SaleofAlloy"and"CommercialQuantity"forPurposesofRegisteringWroughtAluminumandWroughtAluminumAlloys(27DECLARATIONOFACCORD(28FOREWORDListedhereinaredesignationsandchemicalcompositionlimitsforwroughtaluminumandwroughtaluminumalloysregisteredwithTheAluminumAssociation.NumericaldesignationsareassignedinaccordancewiththeRecommendation—InternationalDesignationSystemforWroughtAluminumandWroughtAluminumAlloys,whichisprintedonpages25through27.AdditionsmaybemadeinaccordancewiththerulesoutlinedintheDeclarationofAccordprintedonpage28,andalloyswillbedeletedwhennolongerincommercialuse(seetableofinactivealloysprintedonpages21-22.SincetheInternationalDesignationSystemforWroughtAluminumandWroughtAluminumAlloysisbasedonUSA'snationalstandard"AmericanNationalStandardAlloyandTemperDesignationSystemforAluminumANSIH35.1,"thesystemlimitsintroductionofexperimentalalloycompositionstoUSAregistrations.AnexperimentalalloyregisteredbyUSAunderthissystemisindicatedbytheprefix"X"andissubjecttothefollowingrules:1.Acompositionshallnotbedesignatedasexperimental("X"formorethanfiveyears.2.Duringitsexperimentalstatus,theregisteringorganizationmayrequestchangesinthecompositionlimitofthealloy,providedthatitdoesnotinvalidateanyassigneddesignation.3.The"X"isdroppedwhenthealloyisnolongerexperimental.4.Anexperimentalcompositionthatisinactivatedshallretaintheprefix"X"forthedurationofitsinactivestatus.Ifreactivated,the"X"shallberemoved.Someoftheregisteredalloysmaybethesubjectofpatentorpatentapplications,andtheirlistinghereinisnottobeconstruedinanywayasthegrantingofalicenseundersuchpatentright.AlistoftheorganizationsthataresignatoriestotheDeclarationofAccordontheRecommendationisprintedonpagesii-iii.SIGNATORIESTOTHEDECLARATIONOFACCORDThefollowingorganizationsaresignatoriestotheDeclarationofAccordonanInternationalAlloyDesignationSystemforWroughtAluminumandWroughtAluminumAlloyswhichisprintedonpage28ofthispublication.TheAluminumAssociationInc.USA1525WilsonBoulevardSuite600Arlington,VA22209USAAFAAssociationFrancaisedel’AluminiumFRANCE17,rueHamelin75016ParisFRANCEAll-RussianInstituteofAviationMaterials(VIAMRUSSIA17RadioUlitza105005MoscowRUSSIAwww.viam.ruAlroS.A.ROMANIA116PitestiStreet230048SlatinaROMANIAwww.alro.roAluminiumAssociationofCanadaCANADA1010SherbrookeStreetWest,Suite1600Montreal,QuebecH3A2R7CANADAwww.aac.aluminium.qc.caAluminiumCenterBelgiumBELGIUMZ.I.ResearchPark3101731ZellikBELGIUMwww.aluminiumcenter.beAluminiumFederationLimitedUKNationalMetalformingCentre47BirminghamRoadWestBromwichB706PYUNITEDKINGDOM.ukAluminiumFederationofSouthAfricaSOUTHAFRICAP.O.Box423Isando,1600REPUBLICOFSOUTHAFRICA.zaAluminium–VerbandSchweizSWITZERLANDHallenstrasse15PostfachCH-8024ZurichSWITZERLANDwww.alu.chAssociac?oBrasileiradoAluminio—ABALBRAZILRuaHumberto1,No.220-4o.AndarSaoP?ulo-SPCEP04018-030BRAZIL.brAssociationfortheDutchNETHERLANDSMetallurgicIndustry(VNMIP.O.Box190NL-2700ADZoetermeerNETHERLANDSwww.vnmi.nlAssomet-AssociazioneNazionaleITALYIndustrieMetallinonFerrosiViadeiMissaglia,97I-20142MilanoITALYwww.assomet.itAustralianAluminiumCouncilLimitedAUSTRALIALevel1,DicksonSquareP.O.Box63Dickson,ACT2602AUSTRALIA.auAustrianNon-FerrousMetalsFederationAUSTRIAWiednerHauptstrasse63/3317Postfach338A-1045ViennaAUSTRIAwww.nemetall.atCentroNacionaldeInvestigacionesSPAINMetalurgicas(CENIMAvenidaGregoriodelAmo,8CiudadUniversitaria28040MadridSPAINwww.cenim.csic.esChinaNonferrousMetalsTechno-EconomicCHINAResearchInstituteNo.9XizhangHutong,XizhimenneiStreetBejing,100035PEOPLESREPUBLICOFCHINAEuropeanAluminiumAssociationEAAAvenuedeBroqueville,12B-1150BrusselsBELGIUMiiEuropeanOrganizationforASD-STANAerospaceStandardization270,AvenuedeTervuren1150,BrusselsBELGIUMGesamtverbandderAluminium-GERMANYindustriee.V.(GDAAmBonneshof5D-40474DusseldorfGERMANYwww.aluinfo.deInstituteofNon-FerrousMetalsPOLANDLightMetalsDivison32-050SkawinaUl.Pilsudskiego19POLANDwww.imn.gliwice.plInstitutoMexicanodelAlumino,A.C.MEXICOFranciscoPetrarcaNo.133Piso9MEXICO,11560,DF.mxIRAM-InstitutoArgentinoDeARGENTINANormalizacionPeru556C1068AABBuenosAiresARGENTINA.arJapanAluminiumAssociationJAPANTsukamoto-SozanBuilding2-15,Ginza4-ChomeChuo-ku,Tokyo104-0061JAPANwww.aluminum.or.jpSwedishAluminiumAssociationSWEDENAluminiumriketSverigeFramtidsvagen21ASE-35196VaxjoSWEDENSignatories(ContinuediiiiCALCULATEDNOMINALDENSITIESFORACTIVEWROUGHTALUMINUMANDWROUGHTALUMINUMALLOYSDensityisdependentuponcompositionandnominaldensityisdeterminedbycomputationratherthanbyaweightmethod.ThevaluesshownbelowhavebeencomputedinaccordancewiththeAluminumandAluminumAlloyDensityCalculationProcedureappearingonpages2-12and2-13ofAluminumStandardsandData.Thesecalculateddensitiesarenominalvaluesandshouldnotbespecifiedasengineeringrequirementsbutmaybeusedincalculatingnominalvaluesforweightperunitlength,weightperunitarea,coveringarea,etc.Limitingtheexpressionofnominaldensitytothenumberofdecimalplacesindicatedisbasedonthefactthatcompositionvariationsarediscerniblefromonecasttoanotherformostalloys.Theexpressionofnominaldensitytomoredecimalplacesthanallowedbythefollowingimplieshigherprecisionthanisjustifiedandshouldnotbeused.1.Alloyslistedbelowwhichhaveaminimumaluminumcontentof99.35%orgreaterhavenominaldensityvalueswhichareroundedintheUScustomarysystem(lbs/in3tothenearestmultipleof0.0005andinthemetricsystem[(kg/m3x103]tothenearestmultipleof0.005.2.Alloyslistedbelowwhichhaveaminimumaluminumcontentoflessthan99.35%havenominaldensityvalueswhichareroundedintheUScustomarysystem(lbs/in3tothenearestmultipleof0.001andinthemetricsystem[(kg/m3x103]tothenearestmultipleof0.01.TheUScustomary(lbs/in3unitvaluesarederivedfrommetricvaluesandsubsequentlyroundedandarenottobeback-convertedtometricvalues.DensityDesignationlbs/in.3(kg/m3x10310500.09752.7051050A0.09752.70510600.09752.70510650.09752.70010700.09752.7001070A0.09752.70010800.09752.7001080A0.09752.70010850.09752.70010900.09752.70010980.09752.70011000.0982.711100A0.0982.7112000.0982.701200A0.0982.7113000.0982.7111100.0982.7011200.0982.7112300.0982.701230A0.0982.7012350.09752.70514350.09802.71011450.09752.70013450.09752.70514450.09752.70011500.09752.70513500.09752.7051350A0.09752.70014500.09752.70513700.09752.70012750.09752.70511850.09752.700DensityDesignationlbs/in.3(kg/m3x10312850.09752.70013850.09752.70011880.09752.70011900.09752.70012900.09752.70011930.09752.70011980.09752.70011990.09752.70020010.1022.8220020.0992.7320040.1022.8220050.1022.8320060.0992.7420070.1022.822007A0.1022.81+2007B0.1022.8120080.0982.7220090.0992.7520100.0982.7220110.1022.832011A0.1022.8221110.1022.832111A0.1022.832111B0.1022.8320120.1022.8220130.0992.7320140.1012.802014A0.1012.8022140.1012.8020150.1022.8320160.1012.7920170.1012.79DensityDesignationlbs/in.3(kg/m3x1032017A0.1012.7921170.0992.7520180.1022.8222180.1012.8126180.1002.762618A0.1002.7722190.1032.8423190.1032.8424190.1022.8425190.1022.8220210.1032.8420220.1012.8020230.1002.7720240.1002.782024A0.1002.7721240.1002.7822240.1002.772224A0.1002.7823240.1002.7724240.1002.7725240.1002.7820250.1012.8120260.1002.7720270.1012.7920280.1022.83+2028A0.1012.80+2028B0.1022.81+2028C0.1022.8220300.1022.8120310.1002.7720320.1002.7620340.1012.7920360.1002.7520370.0992.7420380.0992.7320390.1012.8121390.1022.8120400.1022.81+20410.1032.84+20440.1022.81+20450.1022.8220500.0982.7020560.1002.7820900.0932.5920910.0932.5820940.0982.7220950.0982.7021950.0982.7121960.0952.6320970.0962.6521970.0952.6422970.0962.65DensityDesignationlbs/in.3(kg/m3x10323970.0962.6520980.0972.7021980.0972.6920990.0952.6321990.0952.6430020.0982.7031020.0982.7130030.0992.7331030.0992.733103A0.0982.723103B0.0982.7332030.0982.7334030.0992.7330040.0982.723004A0.0982.7131040.0982.7232040.0982.7133040.0982.7230050.0982.733005A0.0992.7331050.0982.723105A0.0982.713105B0.0982.7230070.0982.7231070.0982.7232070.0982.713207A0.0982.7233070.0982.7230090.0992.7330100.0982.7231100.0982.7230110.0992.7330120.0982.72+3012A0.0982.7230130.0992.7430140.0992.7530150.0982.7230160.0982.7230170.0992.7330190.0992.7330200.0992.7330250.0982.7230260.0982.7230300.0982.7231300.0982.7140040.0962.6541040.0962.6540060.0982.7140070.0992.7440080.0962.6740090.0972.7040100.0962.67DensityDesignationlbs/in.3(kg/m3x10340130.0982.7140140.0972.7040150.0982.71+4015A0.0982.71+41150.0982.7240160.0992.7340170.0982.7240180.0962.6740190.0992.7440200.0982.7140260.0992.7340320.0972.6840430.0972.694043A0.0972.6943430.0972.6846430.0972.6940440.0972.6740450.0962.6741450.0992.744145A0.0992.7440460.0962.6640470.0962.664047A0.0962.6641470.0962.6650050.0982.705005A0.0972.6952050.0972.7053050.0972.6955050.0972.6956050.0972.6950060.0982.7151060.0982.7150100.0982.7151100.0972.695110A0.0982.7052100.0972.6953100.0972.6950160.0972.7050170.0972.6950180.0962.675018A0.0972.6750190.0962.655019A0.0962.6551190.0962.655119A0.0962.6550210.0972.6850220.0962.6650230.0952.64+50240.0962.6550260.0972.6950270.0962.6550400.0982.72DensityDesignationlbs/in.3(kg/m3x10351400.0982.7150410.0972.6750420.0962.6750430.0982.7250490.0972.7051490.0972.6952490.0972.7053490.0972.7054490.0972.7050500.0972.695050A0.0972.6951500.0972.6850510.0972.695051A0.0972.6951510.0972.6852510.0972.695251A0.0972.6953510.0972.6854510.0972.6850520.0972.6852520.0962.6753520.0972.6751540.0962.665154A0.0962.675154B0.0962.67+5154C0.0962.6652540.0962.6653540.0972.6954540.0972.6955540.0972.6956540.0962.665654A0.0962.6657540.0972.6759540.0962.6650560.0952.6453560.0962.645356A0.0962.6454560.0962.665456A0.0962.665456B0.0962.6655560.0962.665556A0.0962.655556B0.0962.655556C0.0962.6652570.0972.7054570.0972.6955570.0972.7056570.0972.6950580.0972.6750590.0962.6650700.0972.6851800.0972.70DensityDesignationlbs/in.3(kg/m3x1035180A0.0972.7050820.0962.6551820.0962.6550830.0962.6651830.0962.665183A0.0962.6652830.0962.655283A0.0962.655283B0.0962.6653830.0962.6654830.0962.6650860.0962.6651860.0962.6650870.0962.6651870.0962.6650880.0962.6561010.0972.706101A0.0972.696101B0.0972.7062010.0972.696201A0.0972.6964010.0972.6965010.0982.7060020.0972.7060030.0972.7061030.0982.7060050.0972.706005A0.0982.706005B0.0972.706005C0.0982.7061050.0972.7062050.0982.7160060.0982.7061060.0982.7062060.0982.7163060.0972.7060080.0982.7060090.0982.7160100.0982.7161100.0982.716110A0.0982.7160110.0992.7361110.0982.7160120.0992.746012A0.0992.7460130.0982.7161130.0982.7160140.0982.7060150.0972.6960160.0982.706016A0.0982.7061160.0972.70DensityDesignationlbs/in.3(kg/m3x10360180.0992.7460190.0982.7160200.0992.7360210.0982.7260220.0972.6960230.0992.7360240.0982.7260250.0972.7060260.0992.74+60280.0992.7460330.0992.7360400.0992.73+60410.0992.73+60420.0982.72+60430.0982.7261510.0982.7163510.0982.716351A0.0982.7164510.0982.7069510.0982.7060530.0972.6960560.0982.7261560.0982.7260600.0972.7061600.0972.7062600.0982.7063600.0982.7064600.0972.7065600.0982.7060610.0982.706061A0.0982.7062610.0982.7061620.0972.7062620.0982.726262A0.0982.7260630.0972.706063A0.0972.7064630.0972.696463A0.0972.6967630.0972.6969630.0972.70+60640.0982.72+6064A0.0982.7260650.0982.7260660.0982.7260690.0982.7060700.0982.7160810.0972.7061810.0972.696181A0.0982.7060820.0982.706082A0.0982.70DensityDesignationlbs/in.3(kg/m3x10361820.0982.7160910.0972.7060920.0982.7070030.1012.8070040.1002.7772040.1002.7870050.1002.7771080.1002.787108A0.1012.7870090.1012.8070100.1022.8270120.1012.8170140.1012.7970150.1002.7770160.1002.7871160.1012.7870170.1002.7670180.1012.7970190.1002.767019A0.1002.7570200.1002.7870210.1012.7870220.1002.7771220.1002.7670230.1002.7870240.1002.7770250.1002.7770260.1002.7870280.1002.7770290.1002.7771290.1002.7872290.1002.7770300.1012.7970310.0992.7470320.1022.8270330.1012.7970340.1052.9070350.0992.75+7035A0.0992.7570360.1042.8871360.1042.88+70370.1032.8570390.0992.7470400.1022.8271400.1022.83+70410.1012.8070460.1022.827046A0.1022.8170490.1032.847049A0.1032.8471490.1032.8472490.1032.84DensityDesignationlbs/in.3(kg/m3x10373490.1032.8574490.1032.8570500.1022.837050A0.1022.8271500.1022.8372500.1022.8270550.1032.86+71550.1042.8770560.1042.8770600.1032.8570640.1032.8570680.1032.8571680.1032.8670720.0982.7270750.1012.8171750.1012.8074750.1012.8170760.1022.8471780.1022.8372780.1022.837278A0.1022.8270810.1022.8370850.1032.8570900.1032.8570930.1032.8670950.1042.8980050.0982.7180060.0992.7480070.1002.7680080.0992.7480100.0982.7280110.0982.718011A0.0982.7181110.0982.7182110.0982.7281120.0982.7280140.0992.7380150.0982.7280160.0982.7280170.0982.7180180.0982.7280190.1062.9280210.0982.738021A0.0982.728021B0.0982.7280220.1022.8380230.0992.7480240.0882.4380250.0982.71+80260.0992.7380300.0982.7181300.0982.71CALCULATEDNOMINALDENSITIESFORACTIVEWROUGHTALUMINUMANDWROUGHTALUMINUMALLOYS(continuedDensityDesignationlbs/in.3(kg/m3x10380400.0982.7180500.0992.7381500.0982.738076A0.0982.7181760.0982.7180770.0982.7080790.0982.7280900.0922.5480910.0922.5480930.0922.55DensityDesignationlbs/in.3(kg/m3x10320PREVIOUSLYASSIGNEDBUTPRESENTLYINACTIVEALLOYDESIGNATIONS12Seefootnotesonpage14.DATEDESIGNATIONRECLASSIFIED103081988-05-231035820050404-1311301966-09-0913301964-12-1811351997-02-0313351966-09-0912451966-09-0912501988-05-2310551988-05-2311601958-04-22(Supersededby106012602005-04-1313601965-12-0911651966-07-1211701997-02-0312701966-07-12107581988-05-2311751997-02-0311801997-02-0311871958-09-10(Supersededby118810951988-05-2311971958-09-10(Supersededby1199109981965-12-09200381997-11-28X231681965-03-31X21191966-03-0720201974-11-0122251966-07-12204882005-04-1320531983-11-09208082005-06-02X209682000-12-0833031997-02-0332051965-11-05300682005-04-1330081996-03-1530181998-01-1640011965-11-0541011965-11-0540021981-05-29X40031975-01-27X40051977-06-01401182005-06-0240121965-11-0545431997-02-03DATEDESIGNATIONRECLASSIFIED42451968-08-19(Redesignated4048404882005-04-13X50021963-06-0350041967-04-2651051960-04-2854051966-07-1250071968-05-1350081968-05-1350091968-05-1350111967-04-26X50121970-06-3050131996-10-02501481997-11-28X50151968-08-19X50201977-08-04X52201962-01-11502582005-06-0250341973-08-0950391975-11-2452502005-04-135050B1996-03-1551521963-06-03X54521971-06-1755521997-02-0356522005-04-1350531968-08-19X51531967-04-2658541996-10-02X50551956-10-1951551971-07-145056A141992-02-2153572005-04-1357571963-05-1458571963-06-1059571963-06-03X508081963-10-2252801996-10-02X50841965-04-27X51841965-04-27X50851977-08-04X5090197704-26600181955-07-0863012005040402-03X603082001-01-2521PREVIOUSLYASSIGNEDBUTPRESENTLYINACTIVEALLOYDESIGNATIONS12(continuedSeefootnotesonpage14.DATEDESIGNATIONRECLASSIFIED605181963-12-12X62511965-03-3162532002-05-22X61611963-06-03606281964-09-04X61631964-12-1862631955-07-1263631964-12-1865631967-04-2666631967-04-2668631996-10-02X6064181965-03-31X60671974-11-0160711966-07-1260901992-06-01700181997-02-0370021966-07-1271041988-05-23X70061963-09-10X710681980-04-16X70071972-02-16700882005-04-13710919960602-0370271996-06-26X70381967-04-2671391966-09-0971461997-02-0370511996-10-0270701988-05-23X72721965-03-3174721997-02-03X72751963-06-03727782000-11-0670791989-03-2271791989-06-06X72791963-06-03X70801971-01-04709181997-02-03800181997-02-03X80021964-12-18X80031964-12-1880041996-10-02800982000-06-1982121967-04-2680131971-11-0180208200504-1382761996-10-02DATEDESIGNATIONRECLASSIFIED81771997-02-03828082005-04-13X83801964-12-18X8480196402-03X8090A1989-01-13X80921991-10-24X81921991-10-2422CROSSREFERENCEOFINTERNATIONALDESIGNATIONSDECLARATIONOFACCORD(DOATOISO*DOADESIGNATIONFORMERISODESIGNATIONDOADESIGNATIONFORMERISODESIGNATIONDOADESIGNATIONFORMERISODESIGNATION1050AAl99.53105AlMn0.5Mg0.56101E-AlMgSi1350E-Al99.54043AlSi56101AE-AlMgSi(A1060Al99.64043AAlSi5(A6005AlSiMg1070AAl99.74047AlSi126005AAlSiMg(A1370E-Al99.74047AAlSi12(A6351AlSi1Mg0.5Mn1080AAl99.8(A5005AlMg1(B6060AlMgSi1100Al99.0Cu5019AlMg56061AlMg1SiCu1200Al99.05050AlMg1.5(C6262AlMg1SiPb2011AlCu6BiPb5251AlMg26063AlMg0.7Si2014AlCu4SiMg5052AlMg2.56063AAlMg0.7Si(A2014AAlCu4SiMg(A5154AlMg3.56181AlSi1Mg0.82017AlCu4MgSi5154AAlMg3.5(A6082AlSi1MgMn2017AAlCu4MgSi(A5454AlMg3Mn7005AlZn4.5Mg1.5Mn2117AlCu2.5Mg5554AlMg3Mn(A7010AlZn6MgCu2219AlCu6Mn5754AlMg37020AlZn4.5Mg12024AlCu4Mg15056AlMg5Cr7049AAlZn8MgCu2030AlCu4PbMg5356AlMg5Cr(A7050AlZn6CuMgZr3003AlMn1Cu5456AlMg5Mn17075AlZn5.5MgCu3103AlMn15083AlMg4.5Mn0.77475AlZn5.5MgCu(A3004AlMn1Mg15183AlMg4.5Mn0.7(A7178AlZn7MgCu3005AlMn1Mg0.55086AlMg4*Source:ISO209-1.NOTE:Thistableisincludedforinformationalpurposesonly.ISO209-1hasbeenwithdrawnandreplacedbyISO209whichreferencestheTealSheetsasthenormativereferenceandthesourceforinternationalalloydesignations.24Seefootnotesonpage14.TheAluminumAssociationRECOMMENDATION15December19701525WilsonBoulevardINTERNATIONALDESIGNATIONSYSTEMRevisedMarch2008Arlington,VA22209FORWROUGHTALUMINUMANDWROUGHTALUMINUMALLOYSU.S.A.ThisRecommendationisbasedonthenumericaldesignationsystemforwroughtaluminumandwroughtaluminumalloyswhichwasadoptedintheU.S.A.in1954,andbecameitsnationalstandardin1957.ThisRecommendationwasofficiallyadoptedbytheInternationalSignatoriesoftheDeclarationofAccordonDecember15,1970.DesignationsinaccordancewiththisRecommendationmaybeusedbyanycountry,butthereisnoobligationtousethem.Foruse,seeAppendixesA,B,andC.AnumericaldesignationassignedinconformancewiththisRecommendationshouldonlybeusedtoindicateanaluminumoranaluminumalloyhavingchemicalcompositionlimitsidenticaltothoseregisteredwiththeSignatoriestotheDeclarationofAccordonanInternationalAlloyDesignationSystemforWroughtAluminumandWroughtAluminumAlloys.1.ScopeThisrecommendationdescribesafour-digitnumericalsystemfordesignatingwroughtaluminumandwroughtaluminumalloys.2.AlloyGroupsThefirstofthefourdigitsinthedesignationindicatesthealloygroupasfollows:Aluminum,99.00percentandgreater(1xxxAluminumalloysgroupedbymajoralloyingelements1,2,3Copper(2xxxManganese(3xxxSilicon(4xxxMagnesium(5xxxMagnesiumandSilicon(6xxxZinc(7xxxOtherelements(8xxxUnusedseries(9xxx3.1xxxGroupThedesignationassignedshallbeinthe1xxxgroupwhenevertheminimumaluminumcontentisspecifiedas99.00percentandgreater.Inthe1xxxgroup,thelasttwoofthefourdigitsinthedesignationindicatetheminimumaluminumpercentage4.Thesedigitsarethesameasthetwodigitstotherightofthedecimalpointinminimumaluminumpercentagewhenitisexpressedtothenearest0.01percent.Theseconddigitinthealloydesignationindicatesalloymodificationsinimpuritylimitsoralloyingelements.Iftheseconddigitinthedesignationiszero,itindicatesunalloyedaluminumhavingnaturalimpuritylimits;integers1through9,whichareassignedconsecutivelyasneeded,indicatespecialcontrolofoneormoreindividualimpuritiesoralloyingelements.4.2xxx-8xxxGroupsThealloydesignationinthe2xxxthrough8xxxgroupsisdeterminedbythealloyingelement(Mg2Sifor6xxxalloyspresentinthegreatestmeanpercentage.Ifthegreatestmeanpercentageiscommontomorethanonealloyingelement,choiceofgroupwillbeinorderofgroupsequenceCu,Mn,Si,Mg,Mg2Si,ZnorOthers.Inthe2xxxthrough8xxxalloygroupsthelasttwoofthefourdigitsinthedesignationhavenospecialsignificancebutserveonlytoidentifythedifferentaluminumalloysinthegroup.Theseconddigitinthealloydesignationindicatestheoriginalalloy5andalloymodifications;integers1through9,whichareassignedconsecutively,indicatealloymodifications.5.ModificationsAmodificationoftheoriginalalloy5islimitedtoanyoneoracombinationofthefollowing:(aChangeofnotmorethanthefollowingamountsinthearithmeticmeanofthelimitsforanindividualalloyingelementorcombinationofelementsexpressedasanalloyingelementorboth:ArithmeticMeanofLimitsforAlloyingElementsinOriginalAlloyMaximumChangeUpthrough1.0percent0.15Over1.0through2.0percent0.20Over2.0through3.0percent0.25Over3.0through4.0percent0.30Over4.0through5.0percent0.35Over5.0through6.0percent0.40Over6.0percent0.50Todeterminecompliancewhenmaximumandminimumlimitsarespecifiedforacombinationoftwoormoreelementsinonealloycomposition,thearithmeticmeanofsuchcombinationiscomparedtothesumofthemeanvaluesofthesameindividualelements,oranycombinationthereof,inanotheralloycomposition.(bAdditionordeletionofnotmorethanonealloyingelementwithlimitshavinganarithmeticmeanofnotmorethan0.30percent,oradditionordeletionofnotmorethanonecombinationofelementsexpressedasanalloyingelementwithlimitshavingacombinedarithmeticmeanofnotmorethan0.40percent.(cSubstitutionofonealloyingelementforanotherelementservingthesamepurpose.(dChangeinlimitsforimpuritiesexpressedsinglyorasacombination.(eChangeinlimitsforgrainrefiningelements.(fMaximumironorsiliconlimitsof0.12percentand0.10percent,orless,respectively,reflectinghighpuritybasemetal.Analloyshouldnotberegisteredasamodificationifitmeetstherequirementsforanationalvariation.6.NationalVariationsNationalvariationsofwroughtaluminumandwroughtaluminumalloysregisteredbyanothercountryinaccordancewiththisRecommendationareidentifiedbyaserialletterafterthenumericaldesignation.TheseriallettersareassignedinalphabeticalsequencestartingwithAforthefirstnationalvariationregistered,butomittingI,O,andQ.Anationalvariationhascompositionlimitswhicharesimilarbutnotidenticaltoamodificationoranoriginalalloyregisteredbyanothercountry,withdifferencessuchas:(aDifferencesinarithmeticmeanoflimitsforanindividualalloyingelementorcombinationofelementsexpressedasanalloyingelement,orboth,notexceedingthefollowingamounts:ArithmeticMeanofLimitsforAlloyingElementsinOriginalAlloyorModificationMaximumDifferenceUpthrough1.0percent0.15Over1.0through2.0percent0.20Over2.0through3.0percent0.25Over3.0through4.0percent0.30Over4.0through5.0percent0.35Over5.0through6.0percent0.40Over6.0percent0.50Todeterminecompliancewhenmaximumandminimumlimitsarespecifiedforacombinationoftwoormoreelementsinonealloycomposition,thearithmeticmeanofsuchcombinationiscomparedtothesumofthemeanvaluesofthesameindividualelements,oranycombinationthereof,inanotheralloycomposition.(bSubstitutionofonealloyingelementforanotherelementservingthesamepurpose.(cDifferentlimitsofimpuritiesexceptforlowiron.Ironmaximumof0.12percentorless,reflectinghighpuritybasemetal,shouldbeconsideredanalloymodification.See5(f.(dDifferentlimitsongrainrefiningelements.(eInclusionofaminimumlimitforironorsilicon,orboth.Analloymeetingtheserequirementsshouldnotberegisteredasanewalloyoralloymodification.Seefootno