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1、IS2062:1999!v7T&Tm7lTwmkm~~~~-m(~*~p#wT)IndianStandardSTEELFORGENERALSTRUCTURALPURPOSES-SPECIFICATION(FifthRevision)ICS77.140.010BIS1999BUREAUOFINDIANSTANDARDSMANAKBHAVAN,9BAHADURSHAHZAFARMARGNEWDELHI110002April1999PriceGroup4WroughtSteelProductsSectionalCommittee,MTD4FOREWORDThisIndianStandard(F
2、ifthRevision)wasadoptedbytheBureauofIndianStandards,afterthedraftfinalizedbytheWroughtSteelProductsSectionalCommitteehadbeenapprovedbytheMetallurgicalEngineeringDivisionCouncil.Thisstandardwasfirstissuedin1962andsubsequentlyrevisedin1969,1975,1984and1992.ItwasmentionedintheforewordofIS2062:1992,t
3、hatGradeAsteelwhichissuppliedwithaguaranteedcarbonequivalentvalue,supersedesIS226.Whilereviewingthestandardinthelightofexperiencegainedduringtheseyears,Committeedecided,toreviseittoalignitwiththepresentpracticesfollowedbytheIndianindustries.Inthisrevision,followingchangeshavebeenmade:4Amendmentsn
4、umber1,2,3and4havebeenincorporated.b)ReferencesofIndianStandardshavebeenupdated.c>DeoxidationmodeforGradeBsteelhasbeenmodified.4Frequencyoftestsamplesfortensile,bendandimpacttestshasbeenmodified.GradeAsteelspecifiedinthisstandard,isintendedforuseinstructuressubjecttonormalconditionsfornon-critica
5、lapplications.TheuseofGradeAsteelisgenerallyjustifiedforthesestructuralpartswhicharenotpronetobrittlefractureonaccountofitsthickness,sizeandshapeadoptedand/orbecauseofthefabricationand/orserviceconditions.GradeBsteelspecifiedinthisstandardisintendedforuseinstructuressubjecttocriticalloadingapplic
6、ations,whereservicetemperaturesdonotfallbelow0°C.UseofGradeBsteelisgenerallyspecifiedforthosestructuralpartswhicharepronetobrittlefractureand/oraresubjectedtoseverefluctuationofstresses.GradeCsteelspecifiedinthisstandard,issuppliedwithguaranteedlowtemperatureimpactproperties.Thisgradeisintendedto
7、beusedinstructuresorstructuralparts,wheretheriskofbrittlefracturerequiresconsiderationduetotheirdesign,sizeand/orserviceconditions.Incaseswhereowingtoincreasedthicknesses,loadingconditionsandgeneraldesignofthestructure
