【英文标准名称】:StandardSpecificationforCarbonandAlloySteelExternallyThreadedMetricFasteners
【原文标准名称】:碳素和合金钢外螺纹米制紧固件用标准规范
【标准号】:ASTMF568M-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F16.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:合金钢;螺栓;碳素钢;紧固件;高碳钢;米制的;质量要求;钢
【英文主题词】:alloysteel;bolts;carbonsteel;metric;screws;steel;structural;weatheringsteel;Alloysteelboltingmaterialsspecifications;Carbonsteelboltingmaterialsspecifications;Externallythreadedarticles/fasteners/rods;Fasteners(metal)speci
【摘要】:1.1ThisspecificationcoverschemicalandmechanicalrequirementsforninepropertyclassesofcarbonandalloysteelexternallythreadedmetricfastenersinnominalthreaddiametersM1.6throughM100suitedforuseingeneralengineeringapplications.1.2Thisspecificationdoesnotcoverdimensionalrequirementsforfastenersofanypropertyclass.Whenreferencingthisspecificationforprocurementpurposes,itismandatorythatsize,type,style,andanyspecialdimensionsoftheproductbeadditionallyspecified.1.2.1Incaseofanyconflictinrequirements,therequirementsoftheindividualproductspecificationshalltakeprecedenceoverthoseofthisgeneralspecification.1.2.2Thepurchasermayspecifyadditionalrequirementswhichdonotnegateanyoftheprovisionsofthisgeneralspecificationoroftheindividualproductspecification.Suchadditionalrequirements,theacceptanceofwhicharesubjecttonegotiationwiththesupplier,mustbeincludedintheorderinformation(seeSection3).1.3Requirementsforsevenoftheninepropertyclasses,4.6,4.8,5.8,8.8,9.8,10.9,and12.9,areessentiallyidenticalwithrequirementsgivenfortheseclassesinISO898-1.Theothertwo,8.8.3and10.9.3,arenotrecognizedinISOstandards.1.4Classes8.8.3and10.9.3bolts,screws,andstudshaveatmosphericcorrosionresistanceandweatheringcharacteristicscomparabletothoseofthesteelscoveredinSpecificationA588/A588M.Theatmosphericcorrosionresistanceofthesesteelsissubstantiallybetterthanthatofcarbonsteelwithorwithoutcopperaddition.See5.2.Whenproperlyexposedtotheatmosphere,thesesteelscanbeusedbare(uncoated)formanyapplications.1.5Whenagreedonbythepurchaser,Class5.8fastenersmaybesuppliedwheneitherClasses4.6or4.8areordered;Class4.8maybesuppliedwhenClass4.6isordered;Class8.8.3maybesuppliedwhenClass8.8isordered;andClass10.9.3maybesuppliedwhenClass10.9isordered.1.6TheproductsizerangeforwhicheachpropertyclassisapplicableisgiveninTable1andTable2onchemicalcompositionrequirements,andthemechanicalrequirementstable(seeTable3).1.7AppendixX1givesconversionguidancetoassistdesignersandpurchasersintheselectionofasuitablepropertyclass.1.8AppendixX2explainsthesignificanceofthepropertyclassdesignationnumerals.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:9P.;A4
【正文语种】: