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ASTM E21-2009 金属材料升温拉伸试验用标准试验方法

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【英文标准名称】:StandardTestMethodsforElevatedTemperatureTensionTestsofMetallicMaterials
【原文标准名称】:金属材料升温拉伸试验用标准试验方法
【标准号】:ASTME21-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:面积减少;变形-金属/合金;延展性-金属/合金;升温试验;延长-金属材料;器械测量-金属/合金;荷载试验-金属/合金;金属和金属材料;应变测试-金属材料;应力-金属材料;拉伸性能/测试-金属材料;现场强度和现场点
【英文主题词】:Areareduction;Deformation--metals/alloys;Ductility--metals/alloys;Elevatedtemperaturetests;Elongation--metallicmaterials;Instrumentalmeasurement--metals/alloys;Loadingtests--metals/alloys;Metalsandmetallicmaterials;Straintesting--metalli
【摘要】:Theelevated-temperaturetensiontestgivesausefulestimateoftheabilityofmetalstowithstandtheapplicationofappliedtensileforces.Usingestablishedandconventionalrelationshipsitcanbeusedtogivesomeindicationofprobablebehaviorunderothersimplestatesofstress,suchascompression,shear,etc.Theductilityvaluesgiveacomparativemeasureofthecapacityofdifferentmaterialstodeformlocallywithoutcrackingandthustoaccommodatealocalstressconcentrationoroverstress;however,quantitativerelationshipsbetweentensileductilityandtheeffectofstressconcentrationsatelevatedtemperaturearenotuniversallyvalid.Asimilarcomparativerelationshipexistsbetweentensileductilityandstrain-controlled,low-cyclefatiguelifeundersimplestatesofstress.Theresultsofthesetensiontestscanbeconsideredasonlyaquestionablecomparativemeasureofthestrengthandductilityforservicetimesofthousandsofhours.Therefore,theprincipalusefulnessoftheelevated-temperaturetensiontestistoassurethatthetestedmaterialissimilartoreferencematerialwhenothermeasuressuchaschemicalcompositionandmicrostructurealsoshowthetwomaterialsaresimilar.1.1Thesetestmethodscoverprocedureandequipmentforthedeterminationoftensilestrength,yieldstrength,elongation,andreductionofareaofmetallicmaterialsatelevatedtemperatures.1.2Determinationofmodulusofelasticityandproportionallimitarenotincluded.1.3Tensiontestsunderconditionsofrapidheatingorrapidstrainratesarenotincluded.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:8P.;A4
【正文语种】:


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基本信息
标准名称:外套螺母
替代情况:替代HB 5539-1981 HB 5540-1981 HB 5541-1981
发布日期:1984-08-23
实施日期:1984-10-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
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所属分类: 航空 航天 航空器与航天器零部件 管件 卡箍 密封件
【英文标准名称】:SpecificationforCoextrudedPoly(VinylChloride)(PVC)PlasticPipewithaCellularCore
【原文标准名称】:带泡沫芯的复合挤压聚氯乙烯(PVC)塑料管的规范
【标准号】:ANSI/ASTMF891-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:氯化物;芯;管道;管;塑料管;塑料;聚氯乙烯;氯乙烯
【英文主题词】:Chlorides;Cores;Drains;Pipelines;Pipes;Plasticpipes;Plastics;Polyvinylchloride;Thermoplastic;Vinylchloride;Wastes
【摘要】:Thisspecificationcoverscoextrudedpoly(vinylchloride)(PVC)plasticpipewithacellularcoreandconcentricinnerandoutersolidlayers,andisproducedusingamultilayercoextrusiondiefornonpressureuseinthreeseries:anIPSSchedule40series;aPSserieswithanironpipesizeoutsidediameterwithvaryingwallthicknessasrequiredforpipestiffnessof25,50,and100;andaseweranddrainseries.Thefunctionofthisspecificationistoprovidestandardizationofproduct-technicaldataandserveasapurchasingguide.Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.Note1-Allthepipeseriescoveredbythisspecificationarepermittedtobeperforatedorbelledforjoiningbysolventcementorbelledforjoiningbyanelastomericseal(gasket).BecausethispipeisODcontrolled,theinsidediameterwillvary,andtherefore,thepipeIDisnotsuitableforuseasasocket.Note2-Thisstandardspecifiesdimensional,performanceandtestrequirementsforplumbingandfluidhandlingapplications,butdoesnotaddressventingofcombustiongases.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Note3-Specificationsrelatedtothisspecificationareasfollows:D2665,D2729,D3034,F512,F758,andF789.
【中国标准分类号】:G33
【国际标准分类号】:23_040_20
【页数】:
【正文语种】:英语