IS 277:2003 W?ifhm WIT n cf’mm6bl-iR(wTaqd*)-m-i-f&

1 IS277:2003W?ifhmnWITcf mm6bl-iR(wTaqd*)-m-i-f&(m@k-Pi)IndianSta ndardGALVANIZEDSTEELSHEETS(PLAINANDCORRU GATED) SPECIFICATION(SixthRevision) ,9 BAHADURSHAHZAFARMARGNEWDELHI110002 November2003 PriceGroup4 WroughtSteelProductsSectionalCommittee,M TD4 FOREWORDThisIndianStandard(SixthRevision )wasadoptedbytheBureauofIndianStandards, ,1969,1977, thelightofexperiencedgainedduringtheseye ars, ,followingchangeshavebeenmade:a)Amendmen tsnumber1, 2,3,4 and5 )TableI hasbeenmodified, ) )Clause2 ,roofing, thisstandard(chemical/physical/others), ,observedorcalculated,expressingtheresul tofa testoranalysis,shallberoundedoffinaccord ancewithIS2:1960 Rulesforroundingoffnumericalvalues(revis ed.

2 :2003 IndianStandardGALVANIZEDSTEELSHEETS(PLAI NANDCORRUGATED) SPECIFICATION(SixthRevision)1 SCOPET hisstandardcoverstherequirementsofplaing alvanizedsteelsheetsandstrips(coils) , , :1992513:19941079:19941956(Part4):197526 29:19856745:19728910:197813229:1991 TitleZincingot Specification( jourthrevision)Cold-rolledlowcarbonsteel sheetsandstrips~ourthrevision)Hot-rolled carbonsteelsheetandstrip(fifthrevision)G lossaryoftermsrelatingtoironandsteel: Part4 Steelsheetandstrip(jlrstrevision)Recomme ndedpracticeforhotdipgalvanizingonironan dsteel(jirstrevision) ,thedefinitiongiveninIS1956(Part4) isnotpossibletotestthebasemetalbeforegal vanizing, , bathofmoltenzincata temperaturesuitabletoproducea completeanduniformlyadhesivezinccoating( seeIS2629).

3 CLASSIFICATIONB asemetalofgalvanizedplaincoilsandsheets( spangledandzerospangled) (Cfmse6) (1)(2)(3)(4)ODeepDrawingGPDG radeDDii)ExtraDeepDrawingGPEDG radeEDDiii)InterstitialFreeGPIFG radeIFiv)CorrugatedOrdinaryGCGradeONOTE :20037 ZINCCOATINGU nlessotherwiseagreedtobetweenthepurchase randthemanufacturer, , ,thanthosespecifiedinTable2,maybesupplie d, (1)(2)(3)i) (bothinclusive)200ii) (bothinclusive)220iii) (bothinclusive)275iv) (bothinclusive), (online/offline) (TotalBothSides)( ) )~m,4M2(1)(2)(3)(4)i)600600510ii)4504503 80iii)350350300iv)275275235v)220220190vi )200200170vii)180180155viii)120120100I)M i~ ,bendtestshallnotbeapplicabletoGPH, , , , or50mmdiameter, ,onesetofthreesamplesshallbetaken, , ,diagonalorfromthesideofthesheetshallnot becloserthan75mmfromtheedgeofthesheet.

4 ,, ,onesetof3samples, :2003 Table3 MandrelDiametersforBendTest( ) \ (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)( 13)i)60046889101112---ii)450346678889101 1iii)35034445667889iv)27534445666778v)22 023334444555vi)20022233333444vii)1802223 3333344viii) , , , ,corrugatedsheetsandcoilsshallbereasonab lyflatandfreefrombarespots,holes, ,however, , ,widthsandthicknesses:a)Length 1800,2200,2500,2800and3000mmb)Width 750,900,1000and1200mmc)Thickness , , , , , ,( , , , , , ,sheets) , , Sheetsforothersizes(length,widthandthick ness) ,theinternalnominaldiameterofsheetsuppli edincoilshallbe450, :2003 Table4 CalculationofMassofSheetsorCoils( ) (1)(2)(3)(4)(5)i)SheetMassofsinglesheetN ominalmassofsinglesheetRoundedoffto4effe ctiveplusmassofzinccoatingfiguresTotalma ssMassofsinglesheet(kg)xRoundedofftointe gralNumberofsheetsvalueofkgii)CoilUnitma ssofcoilUnitmassofsheet(kg/mz)xRoundedof fto3effectiveWidth(mm)x10-$figuresMassof singlecoilUnitmassofcoil(kg/m)x Length(m)Totalmass(kg)Totalmassofeachcoi lIntegralnumberofkgNOI ESIN ominalmassofsinglesheetshallbecalculated bycalculatingthevolumeofthesheetandmulti plyingthesamewithdensityofsheet( ) (ghn )asshownfortriplespottest(seeTable2).

5 3forcalculationofcorrugatedsheetmass, +1 Opercentandtoleranceonmassofeachbundleof sheetshallbe+ :1800,2200,2500,2800, Sheetsofotherlengthsmayalsobesuppliedsub ject( ( ) ,10, , , ( ) (1)(2)(3)(4)(5)i)8ii)10iii)11iv)13v)8vi) 10vii)11viii)13 AAAABBBB75090010001200750900100012006608 10910111068083093011304IS277:2003ET+DEPT HPITCH75mmF? snameortrade-mark,gradeofcoating,length, width,thicknessandnumberofcorrugations,g radeincaseofcorrugatedsheetsandmateriali dentification(grade,quality,etc) , ( ) )(1)(2)(3)ODepthofcorrugation+ )Pitchofcorrugationl5mmiii)Overallwidtha ttercorrugation+25mm1) :2003 ANNEXA(Foreword)COMMITTEECOMPOSITIONW roughtSteelProductsSectionalCommittee,MT D4 OrganizationTheTataIronandSteelCoLtd,Jam shedpurAllIndiaInductionFurnaceAssociati onofIndia,NewDelhiBharatHeavyElecticalsL td,Bhopal/HaridwarCentralBoilersBoard(DI PP),NewDelhiConwamerProtectionCouncil,Ro urkelaConvetryCoil-O-Matic(Haryana)Ltd,R lwariDevelopmentCommissioner(Iron& steel ) ,KolkataDirectorateGeneralofS,upplies&Di sposals,NewDelhiEscortsR&DCentre,Faridab adEBGI ndia(P)Ltd, [nstituteofSteelDevelopmentandGrowth,Kol kataIspatIndustriesLtd,MumbaiJindalIronS teelCoLtd,Vasind,ThaneJindalVijaynagarSt eelCoLtd, ,KolkataMahindraUgineSteelCoLtd,RaigadMi nistryofDefence(DGQA)]

6 ,IshaporeMinistryofDefence(OFB),KolkataM inistryofRailways,RDSO,LucknowMinistryof steel ,NewDelhiMakandLtd,ThaneNationalMet allurgicalLaboratory,JamshedpurRashtriya IspatNigamLtd(VSP),VisakhapatnamSAIL,Bhi laiSteetPlant,BhilaiSAIL,BokaroSteelPlan t,BokaroSAIL,CentralMarketingOrganizatio n,KolkataSAIL,DurgapurSteelPlant, ,RourkelaSAIL,R&DCentreforIron& steel ,Ran chiSAIL,SalemSteelPlant,SalemSteelFurnac eAssociationofIndia,NewDelhiSteelRc-roll ingMillsAssociation,MandiGobindGarb/Delh iRepresentative(s) (Chairman)% (Alternate) (Ahernale) (Ahernute) (Alterna(e) (Alternate) (Ahernafe) (Alternate) , (Alternafe) (Alternate)SrrrrrBHASKARROYSmuSUBHABIUTA SENGUPTA(Alternate)DRS, (Alternate)JoawrCONTROLLER(CQAMET)SQAE(M ETALS)(Alternate)RepreSentatiVeJOINTDIRE CTOR(CHEMCAL)JOINTDIRECTOR(1&L)(Alternat eI)DEPUTYDIRECTOR(MET-3)(Alternate11) (Alternate) (Alternate) (Afterrrate)SHRIG, (Alternate) (Alternate) (Alternate) (Alternate) (Alternafe) (Alternate) ~.)

7 (Alternate)(Continuedonpage7)6IS277:2003 (Continuedfrompage6)OrganizationStructur alEngineeringResearchCentre,MadrasSunfla gIronandSteelCoLtd,Faridabad/BhandaraIat aMotors,Jamshedpur/PuneTheTataIronandSte elCoLtd,JamshedpurTORS teelResearchFoundationofIndia,KolkataLJs haBeltronLtd,KolkataInpersonalCapacity(4 03,Udaigiri,Kawhambi,Di$ftGhaziabad,[ )[11 SDirectorateGeneralRepresentative(s) (Alternate) (Alternate) (Alternate)DrrM, (Alternate) (Alternate) (Alternate). ,Director&Head(MTD)[RepresentingDirector General(Ex-oficio)]MemberSecretarySHIUDE EPAKJAINJ ointDirector(MTD),BISB ureauofIndianStandardsBISisastatutoryins titutionestablishedundertheBureauoJIndia nStandardsAct,1986topromoteharmoniousdev elopmentoftheactivitiesofstandardization , ,inthecourseofimplementingthestandard,of necessarydetails,suchassymbolsandsizes, (Publication), ;astandardalongwithamendmentsisreaffirme dwhensuchreviewindicatesthatnochangesare needed;ifthereviewindicatesthatchangesar eneeded, BISC atalogue and Standards:MonthlyAdditions.]]

8 (4374). :ManakBhavan,9 BahadurShahZafarMarg,NewDelhi110002 Telegrams:ManaksansthaTelephones:2323013 1,23233375,23239402(Commontoalloffices)R egionalOffices:TelephoneCentral:Eastern: Northern:Southern:Western:Branches:Manak Bhavan,9 BahadurShahZafarMarg{23237617 NEWDELHI110002232338411 , ,Kankurgachi{23378499,23378561 KOLKATA70005423378626,23379120 SCO335-336,Sector34-A,CHANDIGARH160022{ ,IVCrossRoad,CHENNAI600113{22541216,2254 144222542519,22542315 Manakalaya,E9 MlDC,Marol,Andheri(East){28329295,283278 58 MUMBAI40009328327891, + ,Delhi}}}}}