【英文标准名称】:Prevailingtorquetypesteelhexagonnuts-Mechanicalandperformanceproperties
【原文标准名称】:有效力矩型钢六角锁紧螺母机械和工作性能
【标准号】:ISO2320-1997
【标准状态】:作废
【国别】:国际
【发布日期】:1997-11
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC2
【标准类型】:()
【标准水平】:()
【中文主题词】:钢;名称与符号;内螺纹紧固件;验收规范;六角头紧固件;防松螺母;螺纹;作标记;强度等级;长效扭矩式;六角头螺栓;六角螺母;检验荷载;紧固件;性能试验;螺母;机械性能;特性;材料规范;定义;设计
【英文主题词】:Acceptancespecification;Ambienttemperature;Definition;Definitions;Design;Designations;Dimensions;Fasteners;Heattreatment;Hexagonnuts;Hexagonalheadbolts;Hexagonal-headfasteners;Internal-threadfasteners;Locknuts;Marking;Materials;Materialsspecification;Mechanicalproperties;Nuts;Performancecharacteristics;Performancetesting;Prevailingtorquetype;Proofloading;Properties;Specification(approval);Steels;Strengthclass;Testing;Threads;Torque
【摘要】:ThisInternationalStandardspecifiesthemechanicalandperformancepropertiesforprevailingtorquetypesteelhexagonnuts(includingthosewithflange)whentestedoveranambienttemperaturerangeof10℃to35℃.Propertieswillvaryathigherandlowertemperature.Itappliestoprevailingtorquetypenuts-withnominalthreaddiametersuptoandincluding39mm;-oftriangularISOthreadaccordingtoISO68;-withdiameter/pitchcombinationsaccordingtoISO261;-withthreadtolerances6HaccordingtoISO965-2;-withspecificmechanicalrequirements;-withdimensionsasspecifiedinproductstandardsprovidedtheymakereferencetothisInternationalStandard;-withinthetemperaturerange-50℃to+300℃forallmetaltypenuts;-withinthetemperaturerange-50℃to+120℃fornon-metallicinserttypenuts.Itdoesnotapplytonutsrequiringspecialpropertieswhichmayrequirespecialmaterialsorcoatingstoimprove-weldability;-corrosionresistance;-performanceoutsidetheabovespecifiedtemperatureranges.Prevailingtorqueperformancedecreaseswithincreasingre-use.Thenutusershouldconsidertheimplicationsofdecreasedperformancepriortore-use.NOTE-Informationontorque/clampingforceperformancerequirementsandtestingaregivenintheannexC.Thesefunctionalrequirementsandtheacompanyingtestprocedurearestillunderdiscussionandcannotbespecifiedmandatorilyforthetimebeing.note:1)Bycarefulchoiceofnon-metallicmaterialshigherservicetemperaturepropertiescanbeattainedbyagree-mentbetweenuserandmanufacturer.
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:20P;A4
【正文语种】:英语