gbt22811-2010金属材料拉伸试验第1部分：室温试验方法

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1、ICS77.040.10H22NationalStandardofthePeople’sRepublicofChinaGB/T228.1—2010InplaceofGB/T228—2002MetallicMaterials–TensileTestingPart1:MethodofTestatRoomTemperature(ISO6892-1：2009,MOD)Releasedon23-12-2010Implementedon01-12-2011GeneralAdministrationofQualitySupervision,Inspectionan

2、dQuarantineofthePeople’sRepublicofChinaStandardizationAdministrationofthePeople’sRepublicofChinaJointlyreleasedGB/T228.1—2010ContentsForwardIIIIntroductionV1Scope12NormativeReferences13TermsandDefinitions14SymbolsandDescription85Principle96TestPiece97DeterminationofOriginalCros

3、s-sectionalArea118MarkingtheOriginalGaugeLength119AccuracyofTestingApparatus1110TestRequirements1111DeterminationoftheUpperYieldStrength1412DeterminationoftheLowerYieldStrength1413DeterminationofProofStrength,PlasticExtension1514DeterminationofProofStrength,TotalExtension1615Ve

4、rificationandDeterminationofPermanentSetStrength1616DeterminationofthePercentageYieldPointExtension1617DeterminationofthePercentagePlasticExtensionatMaximumForce1718DeterminationofthePercentageTotalExtensionatMaximumForce1719DeterminationofthePpercentageTotalExtensionatFracture

5、1820DeterminationofPercentageElongationafterFracture1821DeterminationofPercentageReductionofArea1922RoundingoffoftheTestResults1923TestReport1924MeasurementUncertainty19AnnexA(Informative)RecommendationsConcerningtheUseofComputer-controlledTtensileTestingMachines26AnnexB(Normat

6、ive)TypesofTestPiecestobeUsedforThinSheetsandStripsbetween0.1mmand3mmThick31AnnexC(Normative)TypesofTestPiecestobeUusedforWire,BarsandSectionswithaDiameterorThicknessofLessThan4mm33AnnexD(Normative)TypesofTestPiecestobeUsedforSheetsandFlatsofThicknessEequaltoorGreaterThan3mm,an

7、dWire,BarsandSectionsofDiameterorThicknessEqualtoorGreaterThan4mm34AnnexE(Normative)TypesofTestPiecestobeUsedforTubes37AnnexF(Informative)EstimationoftheCrossheadSeparationRateinConsiderationoftheStiffness(orCompliance)oftheTestingMachine40IGB/T228.1—2010AnnexG(Informative)Meas

8、uringthePercentageElongationafterFractureiftheSpecifie