1、BRITISH STANDARD BS EN 576:2003 Aluminium and aluminium alloys Unalloyed aluminium ingots for remelting Specifications The European Standard EN 576:2003 has the status of a British Standard ICS 77.150.10 BS EN 576:2003 This British Standard, was published under the authority of the Standards Policy
2、and Strategy Committee on 30 October 2003 BSI 30 October 2003 ISBN 0 580 42835 4 National foreword This British Standard is the official English language version of EN 576:2003. It supersedes BS EN 576:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Commit
3、tee NFE/35, Light metals and their alloys, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document ma
4、y be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users
5、are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, a
6、nd keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice d
7、isplayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN576 October2003 ICS77.150.10 SupersedesEN576:1995 Englishversion AluminiumandaluminiumalloysUnalloyedaluminiumingots forre
8、meltingSpecifications AluminiumetalliagesdaluminiumAlunimiumnonallien lingotspourrefusionSpcifications AluminiumundAluminiumlegierungenUnlegiertes AluminiuminMasselnSpezifikationen ThisEuropeanStandardwasapprovedbyCENon9October2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhic
9、hstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,
10、French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hunga
11、ry,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyfo
12、rmandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN576:2003EEN576:2003(E) 2 Contents Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Orderinginformation .4 5 Requirements .5 5.1 Productionandmanufacturingprocesses 5 5.2 Qualitycontrol. .5 5.3 Chemicalcomposition
13、 .5 5.4 Freedomfromdefectsandforeignmaterial. .5 5.5 Formofproducts .5 6 Productinspectionandtestingmethods 6 6.1 General6 6.2 Samplingandchemicalanalysisofmainimpurities. .6 6.3 Samplingandchemicalanalysisoftraceimpurities .6 6.4 Samplingfromingotsandchemicalanalysis .6 7 Inspectiondocuments .7 8 M
14、arkingofproducts . .7 9 Packaging .7 10 Deliverydocuments. 7 11 Complaints7 AnnexA (normative) Writingrulesforthedesignationandchemicalcompositionofunalloyed aluminium .9EN576:2003(E) 3 Foreword ThisdocumentEN576:2003hasbeenpreparedbyTechnicalCommitteeCEN/TC132,“Aluminiumandaluminium alloys“,thesecr
15、etariatofwhichisheldbyAFNOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyApril2004,andconflictingnationalstandardsshallbewithdrawnatthelatestby April2004. Withinitsprogrammeofwork,TechnicalCommitteeCEN/TC132entrustedC
16、EN/TC132/WG1“Liquidmetal, unalloyedandalloyedingots “topreparethefollowingstandard: EN576, AluminiumandaluminiumalloysUnalloyedaluminiumingotsforremeltingSpecifications . ThisdocumentsupersedesEN576:1995. Thisrevisedversionspecifiesamodifiedlistofgradesofunalloyedaluminiumtogetherwithanewdesignation
17、 systemwhichisspecifiedinanewnormativeannex.TherevisionalignsthisEuropeanStandardwithcommon rulesoftheinternationaltradeofunalloyedaluminiumwhicharebasedonthedesignationsystemoftheAluminum Association. AnnexAisnormative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationso
18、fthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN576:2003(E) 4 1Scope ThisEuropeanStan
19、dardspecifiestherequirementsforgradesofunalloyedaluminiumintheformofingotsfor remelting. Itspecifiesthedesignationsforthesegrades,theconditionsinwhichtheyareproduced,theirpropertiesandthe marksbywhichtheyareidentified. NOTESomeoftheproductslistedinthepresentstandardcanbesubjecttopatentorpatentapplic
20、ations,andtheirlisting hereindoesnotinanywayimplythegrantingofalicenceundersuchpatentright. CEN/TC132affirmsitisitspolicythatinthecasewhenapatenteerefusestograntlicensesonstandardisedstandardproduct s underreasonableandnotdiscriminatoryconditions,thenthisproductshallberemovedfromthecorrespondingstan
21、dard. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapp
22、lytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN122581, AluminiumandaluminiumalloysTermsanddefinitionsPart1:Generalterms. prEN14361, AluminiumandaluminiumalloysChemicalanalysisSampli
23、ngfrommetalmelts. prEN14726,AluminiumandaluminiumalloysChemicalanalysisGuidelineforsparkopticalemission spectrometricanalysis. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN122581apply. 4 Orderinginformation Theorder,intheformasagreedbetweensupplierandpurc
24、haser,shallcontainthefollowinginformation: a) designationoftheunalloyedaluminiumaccordingtothisEuropeanStandardorthecustomercode; b) specificationoftheformoftheproduct,includingmassanddimensionsofindividualingotsandbundles; c)quantity : mass(inmetrictonnes); quantitytolerancesifrequired; d) anyrequi
25、rementsdifferingfromthosespecifiedinthisEuropeanStandard,suchaschemicalcomposition; e) anyadditionalrequirementsnotspecifiedinthisEuropeanStandard,e.g.onmarkingandpackagingof products,specialinspections; f) anyrequirementsforinspectiondocuments.EN576:2003(E) 5 Ifspecialrequirementsarespecifiedintheo
26、rderagreedbetweensupplierandpurchaserwhichdifferfrom requirementsspecifiedinthisEuropeanStandard,thenthesespecialrequirementsshallapply. 5Requirements 5.1 Productionandmanufacturingprocesses Unlessotherwisespecifiedontheorder,theproductionandmanufacturingprocessesshallbelefttothediscretion ofthemanu
27、facturer. Unlessitisexplicitlystatedontheorder,noobligationshallbeplacedonthemanufacturertousethesame processesforsubsequentandsimilarorders. 5.2 Qualitycontrol ThesuppliershallberesponsibleforcarryingoutallinspectionandtestsrequiredbythisEuropeanStandardand additionalrequirements,priortoshipmentoft
28、heproduct.Ifthepurchaserwishestoinspecttheproductatthe suppliersworks,heshallstipulatethisatthetimeofplacingtheorder. 5.3 Chemicalcomposition Eachgradeofunalloyedaluminiumwithaspecifiedminimumaluminiumcontent,includingrefinedaluminium,shall beinaccordancewiththedesignationsandchemicalcompositiongive
29、ninTable1. Eachgradeofunalloyedaluminiumwithoutaspecifiedminimumaluminiumcontentshallbeinaccordancewiththe designationsandchemicalcompositiongiveninTable2. ThecompositionsshowninTable1andTable2aregiveninmasspercentmaximumunlessotherwisestated. Ininterpretingtheresultsofchemicalanalysis,thenumberrepr
30、esentingtheresultofthedeterminationofan elementcontentshallberoundedtothesamenumberofdecimalplacesasthecorrespondingnumberinthis standard. ThewritingrulesfordesignationsandchemicalcompositionshallbeappliedinaccordancewithannexA. IfthepurchaserrequirescontentlimitsforelementsnotspecifiedinthisEuropea
31、nStandard,theselimitsshallbe agreedbetweensupplierandpurchaserandstatedontheorder. 5.4 Freedomfromdefectsandforeignmaterial Theingotsshallbefreefromasbestosandotherhazardousforeignmaterialandshallshownoindicationof increasedradioactivity. Toastandardagreedbetweensupplierandpurchaser,theingotsshallbe
32、reasonablyfreefrom: a) visiblesurfacesdefectssuchasgrease,dirt,productsofcorrosion,drossoranyotherforeignbodies,including paintapartfromthatwhichisapprovedformarkingpurposes; b) metallicornonmetallicinclusions; c)gas porosity. Theingotscanhaveshrinkageholesorcrackswhichcanretainwaterandshalltherefor
33、ebethoroughlydriedand preheatedbeforechargingtoafurnacetoavoidtheriskofaviolentexplosion. 5.5 Formofproducts Thereareseveralpossibleshapesofingots,e.g:EN576:2003(E) 6 trapezoidalwhichcanbestacked.Thistypeofingotcanhaveoneormorenotchestoenableittobedivided intopiecesifrequired; Tbars,sowsorothershape
34、s. Thetolerancesoftheunitmasses,theshape,thedimensionsandthedimensionaltolerancesoftheindividual ingotsandbundlesshallbedefinedbyagreementbetweensupplierandpurchaseratthetimeofordering. 6 Productinspectionandtestingmethods 6.1General Samplingproceduresandanalyticaltestsshallbecarriedoutinaccordancew
35、ithprEN14726andprEN14361. Themeltshallbeclearlyidentifiedwithatraceablenumber.Fromeachmelt,analyticalsamplesshallbetaken duringthecastfromthemetaldistributionsystem.Theminimumnumberofsamplesforobtainingarepresentative analyticalresultshallbejustified. Eachanalyticalsampleshallbesuitablymachinedand,w
36、henanalysedbyemissionspectrometry,shallbesparked atleasttwice.Theresultoftheanalysisofthesampleshallbethearithmeticmeanofthevaluesobtainedbythe sparks. Eachsampleshallmeetthespecifiedcompositionlimits.Theanalysisofthemeltshallbethearithmeticmeanof theanalysisresultsofallthesamplestakenfromthismelt.
37、Themanufacturershalldetermineandperiodicallychecktheanalyticalaccuracyofeachelementanalysed. Heshallbeabletodemonstratethevalidityofthewholetestprocedure,includingsampling,samplepreparation andmeasurement. 6.2 Samplingandchemicalanalysisofmainimpurities Allanalyticalsamplesshallbeanalysedforthemaini
38、mpuritieswhicharespecifiedbythecolumnsinTable1or Table2.Theanalyticalresultshallbeindicatedonthecertificateofanalysis. 6.3 Samplingandchemicalanalysisoftraceimpurities ThetraceimpuritiesarethoseimpuritieswhicharenotspecifiedbythecolumnsinTable1andTable2.Forthe gradeswheremaximumvaluesoftraceimpuriti
39、esarespecifiedbyfootnotes,e.gPb,Hg,CdandAsinTable2,the suppliershallestablishandmaintainaqualityplanwhichspecifiesthefrequencyoftestsandtheanalytical procedure. SmalltracesofNaandLiimpuritiescancausesevereproblemsoncasting,rollingandthequalityofsomespecial products.Thereforeitisstronglyrecommendedth
40、atthemanufactureroftheingotsanalysestheseelementsand indicatestheresults(inmasspercenttofourdecimalplaces).Fortheseelementsandforotherimpuritiesthatcan causesimilarproblems,closerlimitsthanthoseofTable2maybespecifiedbyagreementbetweensupplierand purchaser. 6.4 Samplingfromingotsandchemicalanalysis S
41、amplingfromingotsisonlyappropriatewhenanalyticaldataofsamplesfromthemelt,e.goftraceelements,are notavailable.Afteragreementbetweensupplierandpurchaser,analyticaldatafromsamplestakenfromingots maybeusedasanindicationofthecompositionofthemetalprovidedthattheyareaveragesfromsamplestaken fromdifferentin
42、gotsofonemeltatalargenumberofdifferentpositionswithintheingots,accordingtoa documentedandjustifiedsamplingplan. NOTE Becauseofmacrosegregation,theconcentrationofcertainimpurities,especiallyofheavymetalswithalowmelting pointsuchasleadortin,canvarytoalargeextentwithinaningot.EN576:2003(E) 7 7 Inspecti
43、ondocuments Theconsignmentshallbeaccompaniedbyacertificateofanalysislistingtheresultsofthechemicalanalysisofthe mainimpuritiesasspecifiedin6.2andanyotherelementswhichhavebeenrequestedinadvance. 8 Markingofproducts Eachindividualingotshallbemarkedwiththemanufactureridentification. Unlessotherwiseindicatedontheorder,eachbundleofingotsandeachnonbundledingot,suchasTbarorsow, shallbemarkedwithatleastoneofthefollowing: thedesignationofthegradeofunalloyedaluminium; themeltnumber; theuni
