文档介绍：’sRepublicofChinaGB/—2010InplaceofGB/T228—2002MetallicMaterials–TensileTestingPart1:MethodofTestatRoomTemperature(ISO6892-1:2009,MOD)Releasedon23-12-2010Implementedon01-12-2011GeneralAdministrationofQualitySupervision,InspectionandQuarantineofthePeople’sRepublicofChinaStandardizationAdministrationofthePeople’sRepublicofChinaJointlyreleasedGB/—2010ContentsForward IIIIntroduction V1 Scope 12 NormativeReferences 13 TermsandDefinitions 14 SymbolsandDescription 85 Principle 96 TestPiece 97 DeterminationofOriginalCross-sectionalArea 118 MarkingtheOriginalGaugeLength 119 AccuracyofTestingApparatus 1110 TestRequirements 1111 DeterminationoftheUpperYieldStrength 1412 DeterminationoftheLowerYieldStrength 1413 DeterminationofProofStrength,PlasticExtension 1514 DeterminationofProofStrength,TotalExtension 1615 VerificationandDeterminationofPermanentSetStrength 1616 DeterminationofthePercentageYieldPointExtension 1617 DeterminationofthePercentagePlasticExtensionatMaximumForce 1718 DeterminationofthePercentageTotalExtensionatMaximumForce 1719 DeterminationofthePpercentageTotalExtensionatFracture 1820 DeterminationofPercentageElongationafterFracture 1821 DeterminationofPercentageReductionofArea 1922 RoundingoffoftheTestResults 1923 TestReport 1924 MeasurementUncertainty 19AnnexA(Informative) puter-controlledTtensileTestingMachines 26AnnexB(Normative) 31AnnexC(Normative) TypesofTestPiecestobeUusedforWire,BarsandSectionswithaDiameterorThicknessofLessThan4mm 33AnnexD(Normative) reaterThan3mm,andWire,reaterThan4mm 34AnnexE(Normative) TypesofTestPiecestobeUsedforTubes 37AnnexF(Informative) EstimationoftheCrossheadSeparationRateinConsiderationoftheStiffness(pliance)oftheTestingMachine 40IGB/—2010AnnexG(Informative) MeasuringthePercentageElongationafterFractureiftheSpecifiedValueisLessThan5% 41AnnexH(Informative) MeasurementofPercentageElongationafterFractureB