1、BRITISH STANDARD BS EN 1981:2003 Copper and copper alloys Master alloys The European Standard EN 1981:2003 has the status of a British Standard ICS 77.120.30 BS EN 1981:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 20 February 2003 BSI
2、 20 February 2003 ISBN 0 580 41283 0 National foreword This British Standard is the official English language version of EN 1981:2003. It supersedes BS EN 1981:1998 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee NFE/34, Copper and copper alloys, to S
3、ubcommittee NFE/34/2, Copper and copper alloy ingots and castings, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications refe
4、rred to in this document may 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 provi
5、sions of a contract. Users 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,
6、 or proposals for change, and 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 14, an inside back cover and a back cover.
7、 The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1981 February2003 ICS77.120.30 SupersedesEN1981:1998 Englishversion CopperandcopperalloysMasteral
8、loys CuivreetalliagesdecuivreAlliagesmres KupferundKupferlegierungenVorlegierungen ThisEuropeanStandardwasapprovedbyCENon28November2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalte
9、ration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberin
10、toitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,Swit
11、zerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1981:2003EEN1981:2003(E) 2 Cont
12、ents page Foreword3 Introduction .4 1 Scope 5 2 Normativereferences 5 3 Termsanddefinitions. .5 4 Designations.5 4.1 Material5 4.2 Product6 5 Orderinginformation .6 6 Requirements .7 6.1 Composition .7 6.2 Productform .7 6.3 Physicalcondition .7 7 Sampling.8 7.1 General8 7.2 Castanalysis . .8 7.3 Ca
13、sesofdispute 8 8 Methodsofanalysis. 8 8.1 Routinecastanalysis . .8 8.2 Determinationofchromium(III)oxideinalloyCuCr10(CM202E).8 8.3 Casesofdispute 8 8.4 Roundingofresults . 8 9 Declarationofconformityandinspectiondocumentation 9 9.1 Declarationofconformity . 9 9.2 Inspectiondocumentation 9 10 Markin
14、g,labelling,packaging .9 AnnexA (normative) Methodfordeterminationofchromium( III)oxideinalloyCuCr10(CM202E) .14 Bibliography 15EN1981:2003(E) 3 Foreword Thisdocument(EN1981:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC133“Copperandcopperal loys“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStanda
15、rdshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyAugust2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby August2003. ThisdocumentsupersedesEN1981:1998. IncomparisonwiththefirsteditionofEN1981:1998,thefollowingsignificanttech
16、nicalchangesweremade: a) Subclause5h)added; b) CompositionsofthematerialsinTable1partiallyamended; c) CuMn20(CM208E)andCuTi28(CM235E)deleted; d)CuCo10(CM237E),CuLi2(CM123C),CuMg10(CM238E),CuNi50(CM239E),CuSi30(A)(CM240E), CuSi30(B)(CM241E),CuTi30(CM244E),CuZr50(B)(CM242E),CuZr50(C)(CM243E)added. Ann
17、exAisnormative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcoun triesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portuga
18、l, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN1981:2003(E) 4 Introduction ThisEuropeanStandardhasbeenpreparedatthesuggestionofthemanufacturersofcastandwroughtcopper alloys,byrepresentativesoftheproducersandusersofmasteralloys.Thereis,atpresent,nosimilarinternational standardforcopperbase
19、dmasteralloys. Inseveralcasesmorethanonegradeofaparticularmasteralloyisspecified,havingdifferingimpuritylimits,to satisfytherequirementsofvariousendproducts.EN1981:2003(E) 5 1Scope ThisEuropeanStandardspecifiesthecompositionsofcopperbasedmasteralloysintendedforthemanufacture, deoxidation,ordesulfuri
20、zationofcastorwroughtalloys,especiallythosebasedoncopper,suppliedintheformof ingots,notchedbar,notchedslab(waffleplate),granulesorbrokenpieces. Aprocedureisincludedforsamplingthemasteralloysforanalysisforverificationofconformitytothecomposition requirements. Amethodforthedeterminationofchromium( III
21、)oxideinchromiumcoppermasteralloyisgiveninannexA. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendme
22、ntstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN1655, CopperandcopperalloysDeclarationsofconformity. EN10204, MetallicproductsTypesofinspec
23、tiondocuments. NOTE Informativereferencestodocumentsusedinthepreparationofthisstandard,andcitedattheappropriateplacesin thetext,arelistedinthebibliography. 3 Termsanddefinitions Forthepurposesofthisstandard,thefollowingtermsanddefinitionsapply: 3.1 masteralloy alloyintendedtoaddoneormoreelementstoam
24、elt 3.2 cast productofonecrucible,oronefurnace,oronemelt 3.3 batch portionofmasteralloytakenfromonecast 3.4 consignment collectionofproductsissuedorreceivedasonedelivery,consistingofoneormorebatchesofonemasteralloy 4Designations 4.1Material 4.1.1General Thematerialisdesignatedeitherbysymbolornumber(
25、seeTable1).EN1981:2003(E) 6 4.1.2Symbol ThematerialsymboldesignationisbasedonthedesignationsystemgiveninISO11901. NOTE Althoughmaterialsymboldesignationsusedinthisstandardmightbethesameasthoseinotherstandardsusing thedesignationsystemgiveninISO11901,thedetailedcompositionrequirementsarenotnecessaril
26、ythesame. 4.1.3Number ThematerialnumberdesignationisinaccordancewiththesystemgiveninEN1412. 4.2Product Theproductdesignationprovidesastandardisedpatternofdesignationfromwhicharapidandunequivocal descriptionofaproductisconveyedincommunication.Itprovidesmutualcomprehensionattheinternationallevel withr
27、egardtoproductswhichmeettherequirementsoftherelevantEuropeanStandard. Theproductdesignationisnosubstituteforthefullcontentofthestandard. Theproductdesignationforproductstothisstandardshallconsistof: denomination(Coppermasteralloy); numberofthisEuropeanStandard(EN1981); materialdesignation,eithersymb
28、ol,ornumber(seeTable1); materialform(thefollowingdesignationsshallbeusedasappropriate:INGforingots,NOBfornotchedbars, NOSfornotchedslabs,GRNforgranulesandBPSforbrokenpieces)(see6.2). Thederivationofaproductdesignationisshowninthefollowingexample. EXAMPLE Coppermasteralloyconformingtothisstandard,inm
29、aterialdesignatedeitherCuP15(B)orCM218E,inthe formofgranules,shallbedesignatedasfollows: CoppermasteralloyEN1981CuP15(B)GRN or CoppermasteralloyEN1981 CM218E GRN Denomination NumberofthisEuropeanStandard Materialdesignation Materialform 5 Orderinginformation Inordertofacilitatetheenquiry,orderandcon
30、firmationoforderproceduresbetweenthepurchaserandthe supplier,thepurchasershallstateonhisenquiryandorderthefollowinginformation: a) quantityofproductrequired(mass); b) denomination(Coppermasteralloy); c) numberofthisEuropeanStandard(EN1981); d) materialdesignation(seeTable1);EN1981:2003(E) 7 e) mater
31、ialform(see6.2). NOTE Itisrecommendedthattheproductdesignation,asdescribedin4.2,isusedforitemsb)toe). Inaddition,thepurchasershallalsostateontheenquiryandorderanyofthefollowing,ifrequired: f) whetheradeclarationofconformityisrequired(see9.1); g) whetheraninspectiondocumentisrequired,andifso,whichtyp
32、e(see9.2); h) whethercastsinaconsignmentshallbekeptseparate(see10). EXAMPLE Orderingdetailsfor500kgofcoppermasteralloyconformingtoEN1981,15%phosphorusdesignatedeither CuP15(B)orCM218E,ingranularform,withdeclarationofconformity: 500kgCoppermasteralloyEN1981 CuP15(B)GRN withdeclarationofconformity or
33、500kgCoppermasteralloyEN1981 CM218EGRN withdeclarationofconformity 6Requirements 6.1Composition ThecompositionshallconformtotherequirementsfortheappropriatematerialgiveninTable1. 6.2Product form Themasteralloyshallbeinoneofthefollowingforms,asrequestedbythepurchasersee5e): ingot; notched bar; notche
34、dslab(waffleplate); granules; or broken pieces. Thedesignoftheingot,notchedbar,ornotchedslabshallbeatthediscretionofthesupplier,unlessaspecific designisrequestedbythepurchaser. 6.3Physical condition Theproductsshallbesuppliedfreefromdirtordrossandshallcontainnoextraneousmaterialdetrimentaltotheir me
35、tallurgicalquality. Brokenpiecesshallbereasonablyfreefromfinemetallicparticles.EN1981:2003(E) 8 7Sampling 7.1General Whenrequired(e.g.,ifnecessaryinaccordancewithspecifiedproceduresofasuppliersqualitysystem,orwhen thepurchaserrequestsinspectiondocumentswithtestresults,orforuseincasesofdispute),anins
36、pectionlot shallbesampledinaccordancewith7.2or7.3. 7.2 Castanalysis Forroutinecontrolpurposesasamplerepresentativeofeachcastshallbetakenfromthefurnace,orcrucible, duringtheprocessofcasting,andpouredintoacleanpermanentmouldofdimensionsappropriatetothechosen methodofanalysis. 7.3 Casesofdispute Incase
37、sofdisputeconcerningthecompositionofamasteralloyinaconsignment,themethodofsamplingshallbe agreedbetweenthedisputingparties. 8 Methodsofanalysis 8.1 Routinecastanalysis Theroutinemethodsofanalysiscarriedoutonthesampleobtainedinaccordancewith7.2,toverifyconformityof thecastofmasteralloytothisstandard,
38、shallbeatthediscretionofthesupplier. 8.2 Determinationofchromium(III)oxideinalloyCuCr10(CM202E) ForalloyCuCr10(CM202E),themethodrecommendedforthedeterminationofCr 2 O 3 isgiveninannexA. NOTE Aqualitativeassessmentcanbemadebyexaminingapolishedmicrosection,underpolarizedlight,at 250magni fication. 8.3
39、 Casesofdispute Incasesofdisputeconcerningtheresultsofanalysisofamasteralloy,theprocedureshallbeagreedbetweenthe disputingparties. 8.4 Roundingofresults Forthepurposeofdeterminingconformitytothecompositionallimitsspecifiedinthisstandard,theresultobtained fromanalysisshallberoundedinaccordancewiththe
40、followingprocedure,whichisbasedupontheguidance giveninannexBofISO310:1992.Itshallberoundedinonesteptothesamenumberoffiguresusedtoexpress thespecifiedlimitinTable1.EN1981:2003(E) 9 Thefollowingrulesshallbeusedforrounding: a) ifthefigureimmediatelyafterthelastfiguretoberetainedislessthan5,thelastfigur
41、etoberetainedshallbe keptunchanged; b) ifthefigureimmediatelyafterthelastfiguretoberetainedisequaltoorgreaterthan5,thelastfiguretobe retainedshallbeincreasedbyone. 9 Declarationofconformityandinspectiondocumentation 9.1 Declarationofconformity Whenrequestedbythepurchasersee5f)andagreedwiththesupplie
42、r,thesuppliershallissuefortheproducts theappropriatedeclarationofconformityinaccordancewithEN1655. 9.2 Inspectiondocumentation Whenrequestedbythepurchasersee5g)andagreedwiththesupplier,thesuppliershallissuefortheproducts theappropriateinspectiondocumentinaccordancewithEN10204. 10 Marking,labelling,p
43、ackaging Eachconsignmentofamasteralloysuppliedshallbeassembledintobundlesorcontainersandshallbelabelled withthemanufacturersmark,thematerialsymbol(ormaterialnumber),andthenumber(s)ofthecast(s)from whichthematerialhasbeensupplied,togetherwithanyrequirementsforthesafehandlingandstorageofthe material. Whenrequestedbythepurchasersee5h)andagreedwiththesupplier,castsshallbekeptseparate.EN1981:2003(E) 10 Table1Compositionofmasteralloys Compositionin%(massfraction) Maximumimpurities Materialdesignation Otherelements Sy
