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BRITISHSTANDARDBSEN10027-1:2005Designationsystemsforsteels—Part1:SteelnamesTheEuropeanStandardEN10027-1:2005hasthestatusofaBritishStandardICS77.080.20 BSEN10027-1:2005ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31March2006©BSI2006ISBN0580467961NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN10027-1:2005.ItsupersedesBSEN10027-1:1992andPD6622:1998whicharewithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeISE/5,Technicaldeliveryconditions,classificationanddesignationofsteels,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeepUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to25andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateCommentsEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN10027-1August2005ICS77.080.20SupersedesCR10260:1998,EN10027-1:1992EnglishversionDesignationsystemsforsteels-Part1:SteelnamesSystèmesdedésignationdesaciers-Partie1:DésignationsymboliqueBezeichnungssystemefürStähle-Teil1:KurznamenThisEuropeanStandardwasapprovedbyCENon27June2005.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2005CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN10027-1:2005:EEN10027-1:2005(E)2ContentsPageForeword..................................................................................................................................................................41Scope...........................................................................................................................................................52Normativereferences.................................................................................................................................53Termsanddefinitions.................................................................................................................................54Principles.....................................................................................................................................................54.1Auniquesteelname...................................................................................................................................54.2Formulationofsteelnames........................................................................................................................54.3Allocationofsteelnames...........................................................................................................................54.4Consultation................................................................................................................................................65Referencetoproductstandards................................................................................................................66Classificationofsteelnames.....................................................................................................................67Structureofsteelnames............................................................................................................................67.1Principalsy