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GB 712-2000 Hull structure steel.pdf

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GB 712-2000 Hull structure steel.pdf

APPROVEDBYCHINASTATEBUREAUOFQUALITYANDTECHNICALSUPERVISIONONAPRIL11TH2000EFFECTIVEONNOVEMBER1ST2000PAGE1OF13NATIONALSTANDARDSOFTHEPEOPLE’SREPUBLICOFCHINAGB7122000SUBSTITUTEFORGB7121988HULLSTRUCTURALSTEEL1SCOPETHISSTANDARDSPECIFIESTHEDIMENSION,SHAPE,TECHNICALREQUIREMENTS,TESTMETHOD,INSPECTIONRULES,PACKAGING,MARKINGANDQUALITYCERTIFICATEOFHULLSTRUCTURALSTEELTHESTANDARDISAPPLICABLEFORTHEMANUFACTUREOFGENERALSTRENGTHANDHIGHSTRENGTHSTEELFORHULLSTRUCTURECOVERINGTHEOCEAN,COASTALANDINLANDNAVIGATIONAREA,INCLUDINGSTEELPLATESHAVINGADIAMETERNOTMORETHAN100MMORSECTIONSTEELWITHTHEWALLTHICKNESSORDIAMETERNOTMORETHAN50MMTHEHULLSTRUCTURALSTEELSINGOTS,BILLETS,MATERIALAREMANUFACTUREDBYSUCHSTEELFACTORIESASAPPROVEDBYREGISTEROFSHIPPINGOFTHEPEOPLE’SREPUBLICOFCHINAORCHINACLASSIFICATIONSOCIETYHEREINAFTERREFERREDTOASCLASSSOCIETY2NORMATIVEREFERENCESTHEFOLLOWINGSTANDARDSCONTAINPROVISIONSWHICH,THROUGHREFERENCEINTHISTEXT,CONSTITUTEPROVISIONSOFGB7122000ATTHETIMEOFPUBLICATION,ALLEDITIONSINDICATEDWEREVALIDASALLSTANDARDSARESUBJECTTOREVISION,ANDTHEPARTIESTOAGREEMENTSBASEDONGB7122000AREENCOURAGEDTOINVESTIGATETHEPOSSIBILITYOFAPPLYINGTHEMOSTRECENTEDITIONSOFTHESTANDARDSINDICATEDBELOWGB/T2221984METHODOFSAMPLINGSTEELFORTHEDETERMINATIONOFCHEMICALCOMPOSITIONANDPERMISSIBLEVARIATIONSFORPRODUCTANALYSISGB/T22331988METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYGRAVIMETRICMETHODOFDIANTIPYRYLMETHANEPHOSPHOMOLYBDATEFORTHEDETERMINATIONOFPHOSPHORUSCONTENTGB/T22341988METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEVOLUMETRICMETHODFORTHEDETERMINATIONOFMANGANESECONTENTBYAMMONIUMNITRATEOXIDATIONGB/T223111991METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEAMMONIUMPERSULFATEOXIDATIONVOLUMETRICMETHODFORTHEDETERMINATIONOFCHROMIUMCONTENTGB/T223142000METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHENBENZOYLNPHENYLHYDROXYLAMINEEXTRACTIONPHOTOMETRICMETHODFORTHEDETERMINATIONOFVANADIUMCONTENTGB/T223161991METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHECHROMOTROPICACIDPHOTOMETRICMETHODFORTHEDETERMINATIONOFTITANIUMCONTENTGB7122000PAGE2OF13GB/T223171989METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEDIANTIPYRYLMETHANEPHOTOMETRICMETHODFORTHEDETERMINATIONOFTITANIUMCONTENTGB/T223181994METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHESODIUMTHIOSULFATESEPARATIONIODIMETRICMETHODFORTHEDETERMINATIONOFCUPPERCONTENTGB/T223191989METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHENEOCUPROINECHLOROFORMEXTRACTIONPHOTOMETRICMETHODFORTHEDETERMINATIONOFCOPPERCONTENTGB/T223231994METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEDIMETHYLGLYOXIMESPECTROPHOTOMETRICMETHODFORTHEDETERMINATIONOFNICKELCONTENTGB/T223241994METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEEXTRACTIONSEPERATIONTHEDIMETHYLGLYOXIMESPECTROPHOTOMETRICMETHODFORTHEDETERMINATIONOFNICKELCONTENTGB223261989METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHETHIOCYANATEDIRECTPHOTOMETRICMETHODFORTHEDETERMINATIONOFMOLYBDENUMCONTENTGB223271994METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHETHIOCYANATEBUTYLACETATEEXTRACTIONSPECTROPHOTOMETRICMETHODFORTHEDETERMINATIONOFMOLYBDENUMCONTENTGB/T223361994METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHENEUTRALTITRATIONMETHODFORTHEDETERMINATIONOFNITROGENCONTENTAFTERDISTILLATIONSEPARATIONGB/T223371989METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEINDOPHENOLBLUEPHOTOMETRICMETHODSFORTHEDETERMINATIONOFNITROGENCONTENTAFTERDISTILLATIONSEPARATIONGB/T223401985METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEANIONEXCHANGESEPARATIONSULPHOCHLOROPHENOLSPHOTOMETRICMETHODFORTHEDETERMINATIONOFNIOBIUMCONTENTGB/T223541987METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEFLAMEATOMICABSORPTIONSPECTROPHOTOMETRICMETHODFORTHEDETERMINATIONOFNICKELCONTENTGB/T223581987METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHESODIUMARSENITESODIUMNITRITETITRIMETRICMETHODFORTHEDETERMINATIONOFMANGANESECONTENTGB/T223591987METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEREDUCEDMOLYBDOANTIMONYLPHOSPHORICACIDPHOTOMETRICMETHODFORTHEDETERMINATIONOFPHOSPHORUSCONTENTGB/T223601997METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEPERCHLORICACIDDEHYDRATIONGRAVIMETRICMETHODFORTHEDETERMINATIONOFSILICONCONTENTGB/T223611988METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEAMMONIUMPHOSPHOMOLYBDATEVOLUMETRICMETHODFORTHEDETERMINATIONOFPHOSPHORUSCONTENTGB/T223621988METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEBUTYLGB7122000PAGE3OF13ACETATEEXTRACTIONPHOTOMETRICMETHODFORTHEDETERMINATIONOFPHOSPHORUSCONTENTGB/T223631988METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHESODIUMPOTASSIUMPERIODATEPHOTOMETRICMETHODFORTHEDETERMINATIONOFMANGANESECONTENTGB223641988METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEFLAMEATOMICABSORPTIONSPECTROMETRICMETHODFORTHEDETERMINATIONOFMANGANESECONTENTGB/T223681997METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEPOTASSIUMIODATETITRATIONMETHODAFTERCOMBUSTIONINTHEPIPEFURNACEFORTHEDETERMINATIONOFSULFURCONTENTGB/T223691997METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEGASVOLUMETRICMETHODAFTERCOMBUSTIONINTHEPIPEFURNACEFORTHEDETERMINATIONOFCARBONCONTENTGB/T223711997METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEGRAVIMETRICMETHODAFTERCOMBUSTIONINTHEPIPEFURNACEFORTHEDETERMINATIONOFCARBONCONTENTGB/T223721991METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHEALUMINACHROMATOGRAPHICSEPARATIONBARIUMSULFATEGRAVIMETRICMETHODFORTHEDETERMINATIONOFSULPHURCONTENTGB/T223741997METHODSFORCHEMICALANALYSISOFIRON,STEELANDALLOYTHECOMBUSTIONGRAVIMETRIC/GASVOLUMETRICMETHODFORTHEDETERMINATIONOFCOMBINEDCARBONCONTENTGB/T223761994METHODSFORCHEMICALANALYSISIRON,STEELANDALLOYTHEFLAMEATOMICABSORPTIONSPERTROMETRICMETHODFORTHEDETERMINATIONOFVANADIUMCONTENTGB/T2281987METALLICMATERIALSTENSILETESTINGGB/T2291994METALLICMATERIALSCHARPYNOTCHIMPACTTESTGB/T2321999METALLICMATERIALSBENDTESTGB/T2471997GENERALRULEOFACCEPTANCE,PACKAGE,MARKANDCERTIFICATIONFORSTEELPLATESSHEETSANDSTRIPSGB/T7091988DIMENSIONS,SHAPE,WEIGHTANDTOLERANCESFORHOTROLLEDPLATESANDSHEETSGB/T21011989GENERALREQUIREMENTSOFACCEPTANCE,PACKAGING,MARKINGANDCERTIFICATIONFORSECTIONSTEEL3CLASSIFICATIONANDSYMBOLS31THEHULLSTRUCTURALSTEELISCLASSIFIEDINTOGENERALSTRENGTHSTEELANDHIGHSTRENGTHSTEELTHEGENERALSTRENGTHSTEELISCLASSIFIEDINTOSUCHFOURQUALITYGRADESASA,B,DANDETHEHIGHSTRENGTHSTEELISCLASSIFIEDINTOTHREESTRENGTHGRADESANDFOURQUALITYGRADESASFOLLOWSA32,D32,E32,F32,A36,D36,E36,F36,A40,D40,E40ANDF40GB7122000PAGE4OF134DIMENSION,SHAPE,WEIGHTANDPERMISSIBLEDEVIATIONS41THEDIMENSION,SHAPEANDPERMISSIBLEDEVIATIONSOFSTEELPLATES,INCLUDINGTHETHICKNESSTOLERANCE,SHALLBEINACCORDANCEWITHRELEVANTPROVISIONSINGB/T709THEMINUSDEVIATIONOFTHICKNESSSHALLNOTBEMORETHAN03MM411THESTEELPLATESHALLBEDELIVEREDONTHEBASISOFTHEORETICALWEIGHTSUBJECTTTOTHECONSENTOFTHEPURCHASERANDBYAGREEMENTBETWEENTHEPURCHASERANDTHEMANUFACTURER,THETHEORETICALTHICKNESSFORCALCULATIONSHALLBEAPPLIEDWITHTHENOMINALTHICKNESSOFTHESTEELPLATEPLUSADDITIONALVALUETHEADDITIONALVALUEOFTHICKNESSISCALCULATEDASFOLLOWSADDITIONALVALUEOFTHICKNESSTOLERANCEVALUE/203MMNOTESTHETOLERANCEVALUEMEANSTHETOLERANCEGIVENINGB/T709,THATIS,THEABSOLUTEVALUEOFPOSITIVEDEVIATIONPLUSMINUSDEVIATION42THEDIMENSION,SHAPE,WEIGHTANDPERMISSIBLEDEVIATIONSOFSECTIONSTEELSHALLBEINCONFORMITYWITHTHEPROVISIONSDEFINEDINTHERELEVANTSTANDARDS5TECHNICALCONDITIONS51CHEMICALCOMPOSITION511THECHEMICALCOMPOSITIONSHEATANALYSISFORGENERALSTRENGTHSTEELSSHALLBEINACCORDANCEWITHPROVISIONSSETFORTHINTABLE1STEELGRADEABDECHEMICALCOMPOSITIONC”021”021”021”018SI”050”035”035”035MN•25C080120060120070120P”0035”0035”0035”0035S”0035”0035”0035”0035ALS•0015•00155111ASAGREEDBYTHEPURCHASERANDSPECIFIEDINTHECONTRACT,FORGRADEASTEELWITHTHICKNESSNOTGREATERTHAN125MM,RIMMEDSTEELCANBEAPPLIED,WHICHSHALLBESPECIFIEDINDICATEDINTHEQUALITYCERTIFICATE5112THELOWERLIMITOFCARBONCONTENTFORMERCHANTSTEELBILLETSSHALLBEAGREEDUPONBYANDBETWEENTHEPURCHASERANDTHEMANUFACTURER5113THEUPPERLIMITOFCARBONCONTENTOFSECTIONSTEELCANBEUPTO0235114THECARBONEQUIVALENTFORALLSTEELSINDIFFERENTQUALITYGRADESISC1/6MN”0405115INCASETHEIMPACTTESTISCARRIEDOUTFORGRADEBSTEEL,THELOWERLIMITOFMNCONTENT

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