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首页 常用五金螺丝材料(Common hardware screw material)

常用五金螺丝材料(Common hardware screw material).doc

常用五金螺丝材料(Common hardware screw …

lu剑美
2018-09-12 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《常用五金螺丝材料(Common hardware screw material)doc》,可适用于社会民生领域

常用五金螺丝材料(Commonhardwarescrewmaterial)常用五金螺丝材料(Commonhardwarescrewmaterial)FastenermaterialMaterialrequirementsforbolts,screwsandstuds(GBT),performancegrades,materialsandheattreatment,chemicalcomposition,temperingtemperatureCMinCPMaxSMaxB)MaxMinmax)carbonsteel,,,),,,),,,,,),,)(align=center>)lowcarbonalloysteels(suchasboron,manganeseorchromium),Quenchedandtemperedormediumcarbonsteel,Quenchedandtempered),,,,,,lowcarbonalloysteels(suchasboron,manganeseorchromium),Quenchedandtemperedormediumcarbonsteel,Quenchedandtempered),,,,,,)()lowcarbonalloysteels(suchasboron,manganeseorchromium),Quenchedandtempered),,,)incarbonsteel,quenchingandtempering,orlowcarbonsteel(suchasboron,manganeseorchromium),quenchingandtemperingsteeloralloyquenchandtempering)),,,,,,,)))quenchedandtempered),,,,)thecontentofboroncanreach,andthenoneffectiveboroncanbecontrolledbyaddingtitaniumandoraluminum)thesegradesallowforeasycuttingThemaximumcontentofsulfur,phosphorusandleadis,phosphorus,andlead)inordertoensuregoodhardenability,fastenerswiththreaddiametersexceedingmmshallbemadeofsteelspecifiedingrade)theminimummanganesecontentoflowcarbonalloysteelswithcarboncontentbelow(barrelsampleanalysis)is::,and:)theproductshallbemarkedwithahorizontallineundertheperformancelevelcodeClassofgradeperformanceshallcomplywithallregulations,andlowtemperatureonthefirealonginmocktemperatureconditionswillcausestressweakenedindifferentdegree)thematerialusedforthisperformanceratingshallhaveagoodhardenabilitytoensurethatthecoreofthethreadedsectionofthefastenerobtainsaboutofthemartensitemicrostructureafterquenchingandtempering)alloysteelshouldcontainatleastoneofthefollowingelements,theminimumcontentis:chromiumnickelmolybdenumvanadium)considerundertensilestress,thesurfacelevelisnotallowedtohavewhitephosphorusaccumulationlayerofgoldphasecanmeasure)thechemicalcompositionandtemperingtemperaturearestillunderinvestigationTwo,nutMaterialrequirementsfornuts(finethread)(GBT)Performancegrade,chemicalcomposition,CMaxMnMinPMaxSMax),)(),,),,,)),,,),,,)thegradeofperformancecanbemadefromeasytocutsteel(exceptotherwiseagreedbybothsuppliersandsuppliers),themaximumcontentofsulfur,phosphorusandleadis,phosphorus,lead)inordertoimprovethemechanicalpropertiesofnuts,alloyelementscanbeaddedifnecessaryTheperformancegradesare,(>MtypeLnut),andandgradenutsshallbequenchedandtemperedMaterialrequirementsfornuts(finethread)(GBT)Performancegradechemicalcomposition:CMnMinPMaxSMax),,)),,,)),,,),,,)thegradeofperformancecanbemadefromeasytocutsteel(exceptotherwiseagreedbybothsuppliersandsuppliers),themaximumcontentofsulfur,phosphorusandleadis,phosphorus,lead)inordertoimprovethemechanicalpropertiesofnuts,alloyelementscanbeaddedifnecessaryPerformancegradesof,(Ltype),andandgradenutsshallbequenchedandtemperedrivetnutmaterial(GBT)ProductmaterialstandardnumberSteelflathead,countersunkhead,smallcountersunkhead,smallcountersunkheadandflathead,sixanglerivetnut,F,GBTMLGBTAluminumalloyflatheadandcountersunkheadrivetnut(originalLF)GBT(originalLD)materialrequirementsofeffectivetorquesteelsixanglelockingnut(GB)Thematerialformakingthenutbodyshallbethesameasthematerialofthenut(coarsethread)AmaterialformakingmetalornonmetallicinsertsdeterminedbythemanufacturerThreeMaterialrequirementsforfasteningscrews(GBT)PerformancelevelMaterialScienceheattreatmentChemicalcomposition,CPMaxSMaxMinmaxHCarbonsteel)ZeropointfivezeroZeropointoneoneZeropointonefiveHCarbonsteel)QuenchingandtemperingZeropointfivezeroZeroPointZeroFiveZeroPointZeroFiveHCarbonsteel)QuenchingandtemperingZeropointfivezeroZeroPointZeroFiveZeroPointZeroFiveHAlloysteel)QuenchingandtemperingZeropointfivezeroZeropointonenineZeroPointZeroFiveZeroPointZeroFive)themaincontentoflead,phosphorusandsulfurisoflead,ofphosphorusandofsulfur)headscrewsallowsurfacehardeningPerformancegradesof,(Ltype),andandgradenutsshallbequenchedandtemperedrivetnutmaterial(GBT)ProductmaterialstandardnumberSteelflathead,countersunkhead,smallcountersunkhead,smallcountersunkheadandflathead,sixanglerivetnut,F,GBTMLGBTAluminumalloyflatheadandcountersunkheadrivetnut(originalLF)GBT(originalLD)materialrequirementsofeffectivetorquesteelsixanglelockingnut(GB)Thematerialformakingthenutbodyshallbethesameasthematerialofthenut(coarsethread)AmaterialformakingmetalornonmetallicinsertsdeterminedbythemanufacturerThreeMaterialrequirementsforfasteningscrews(GBT)PerformancelevelMaterialScienceheattreatmentChemicalcomposition,CPMaxSMaxMinmaxHCarbonsteel)ZeropointfivezeroZeropointoneoneZeropointonefiveHCarbonsteel)QuenchingandtemperingZeropointfivezeroZeroPointZeroFiveZeroPointZeroFiveHCarbonsteel)QuenchingandtemperingZeropointfivezeroZeroPointZeroFiveZeroPointZeroFiveHAlloysteel)QuenchingandtemperingZeropointfivezeroZeropointonenineZeroPointZeroFiveZeroPointZeroFive)themaincontentoflead,phosphorusandsulfurisoflead,ofphosphorusandofsulfur)headscrewsallowsurfacehardening)thematerialofthestresssleeveisrecommendedtobethesamematerialasthestudmaterialshouldbeexaminedbylowmagnificationAmongthem,thegeneralloose,centrallooseandboxshapesegregationshallnotexceedthegradetwostipulatedbyGBFive,stainlesssteelfastenersmaterials,technicalrequirementsBolts,screwsandstuds(),nuts(),lockingscrews()ThestainlesssteelsuitableforfastenersproducedinaccordancewiththerelevantnationalstandardsisgivenintableUnlessotherwiseagreedbetweenthesupplierandthebuyer,thechemicalcompositionshallbechosenbythemanufacturerwithinthelimitsspecifiedbythesteelgroupInthecaseofintergranularcorrosion,itisrecommendedtoperformtestsinaccordancewithISOorISOregulationsInthiscase,stableAandAarerecommended,orAandAstainlesssteelswithcarboncontentofnotmorethanshallberecommendedTableStainlessSteelGroupandchemicalcompositionClasslevel,chemicalcomposition)noteC,Su,Mn,P,S,Cr,Mo,Ni,CuAusteniticA,,,,,,,,),)and)A,,,,))A,,,,))A,,,,,,))A,,,,,,,),)Martensite,C,,,,,)C,>C)steelsmadefromdifferentsmeltingandcastingmethodscanalsobeused)"brand"columnofeachbannerlistedinavarietyofmaterials,canbeuniversalTheabovereferencematerialisfromthesolidscrewwwwcgwujincom

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