JISSKH51HighSpeedToolSteelRoundBars,HSSforPunching,Forming,Pressing

　　SteelGrade:SKH51Application:HighSpeedSteel,ToolSteelShape:RoundbarStandard:AISI,DIN,JIS,GBDimension:Φ6.5-250mmSurface:Black,Peeled,Turned,GrindedTechnique:Hotrolled,ForgedUltrasonicTest:100%UTPassed

　　EquivalenceAISISAEDINW.NrJISGBM21.3343SKH51W6Mo5Cr4V2

　　ChemicalComposition(%)CSiMnPSCrMoVW0.80

　　0.90≤

　　0.40≤

　　0.40≤

　　0.030≤

　　0.0303.80

　　4.504.50

　　5.501.60

　　2.205.50

　　DimensionsHotRolledForgedDiameter(mm)6.5-8081-250Length(mm)

　　Characteristics

　　Tungsten-molybdenumhighspeedsteelwithexcellenttoughnessandcuttingproperties,

　　forawidevarietyofuses.

　　HeatTreatmentAnnealing770to840°C(1418to1544°F)

　　Slowcontrolledcoolinginfurnaceatarateof10to20°C/hr(50to68°F/hr)downto

　　.600°C(1112°F),furthercoolinginair.

　　Hardnessafterannealing:max.280HB.

　　Stressrelieving600to650°C(1112to1202°F)

　　Slowcoolinginfurnace;intendedtorelievestressessetupbyextensivemachining,

　　orincomplexshapes.

　　Afterthroughheating,holdinneutralatmospherefor1-2hours.

　　Hardening1190to1230°C(2174to2246°F)

　　Oil,saltbath(500to550°C(932to1022°F),vacuum.

　　Uppertemperaturerangeforpartsofsimpleshape,lowerforpartsofcomplexshape.

　　Forcoldworkingtoolsalsolowertemperaturesareofimportanceforhighertoughness.Soakingtimeafterheatingupthewholesectionofaworkpiece80secondsminimum

　　isrequiredfordissolvingsufficientcarbides.

　　Maximumsoakingtime150secondstoavoiddetrimentsbyoversoaking.

　　Inpracticeinsteadofsoakingtimethetimeofexposurefromplacingtheworkpieceinto

　　thesalthbathafterpreheatinguntilremoving(includingthestagesofheatingtothespecifiedsurfacetemperatureandofheatingtothetemperaturethroughoutthewholesection)isused.

　　Vacuumhardeningisalsopossible.Thetimeinthevacuumfurnacedependsonthe

　　relevantworkpiecesizeandfurnaceparameters.

　　1hourforevery20mmofworkpiecethickness,butnotlessthan2hours/aircooling

　　(minimumholdingtime:1hour).

　　1sttemperingand2ndtemperingtodesiredworkinghardness.

　　Averageobtainablehardnessvaluesareshowninthetemperingchart.

　　3rdtemperingforstressrelieving,30-50°C(86-122°F)belowhighesttemperingtemperature.

　　Obtainablehardnessaftertempering:64-66HRC.

　　MaterialPhoto:

　　Applications

　　JISSKH51issuitableforcoldworkapplications,forexampletoolsforpunching,forming

　　andpressing,etc..SKH51possessesanadmirablecombinationofwearresistance,

　　toughnessandcompressivestrength.Thiscombinationofpropertiesmakesitsuperior

　　tomanyhighalloyedcoldworksteels.

　　QualityAssurance

　　Belowinspectionwillbedoneintheproduction.

　　(1)raydetection-RT;

　　(2)ultrasonictesting-UT;

　　(3)MagneticParticleTesting-MT;

　　(4)penetrationtesting-PT;

　　(5)eddycurrentflawdetection-ET

　　Companyinformation:

　　BozhongGroupMainlysupplyinformsofcoil,sheet,plate,rod,barskh51是什么材質價格,tube,pipe,beam,angle,flange,wire,strip,channel,etc.,withvariousvarieties,widerangeofdimensions,highpurity,stablechemicalcomposition,highdimensionalaccuracyandexcellentsurfacequality.Theproductsaremainlyusedinthefieldsofindustriessuchasautomobileengineering,railwaytransportation,aviation,aerospace,machinery,petrochemical,energy,environmentalprotection,offshore,chemical,oil&gas,military,powerplant,nuclearpower,pressurevessel,boilerequipment,moldmanufactureskh51是什么材質價格,etc.

　　steelcoil

　　steelplate

　　steelsheet

　　steelbar/rod

　　steelroundbar

　　steelflatbar

　　steelsquarebar

　　steelpipe/tube(weldedorseamless)

　　steelroundpipes

　　steelsquarepipes

　　steelweldedtubes

　　steelseamlesstubes

　　steelstrip

　　steelbeam

　　steelangle

　　steelchannel

　　steelflange

　　Steelwire

　　BozhongGroupcansupplyavarietyofstructuralsteelskh51是什么材質價格,high-strengthsteel,wear-resistantsteelplate,boilerandpressurevesselsteel,marineengineeringandstainlesssteelplateinthethicksteelandvariousEuropeanstandardbarsandpipesandprofiles.Ourglobalsalesandservicenetworkthroughoutallaroundtheworldtoensurethatthegoodsreachthecustomerintheshortesttime.

　　Wecanfollowyourdrawingsandrequirements,toprovideyouwithoxygencutting,plasmacuttingandlasercuttingandotherprocessingservices.YoucanalsoperformultrasonictestinginaccordancewithENstandard,ENstandardtestZ15,Z25,Z35,weldbendingdetection,PWHTdetection,etc.

　　WehaveISO9001:2000qualitymanagementsystemcertification,andobtainthequalitycertificationfromallthewell-knowncertificationcompany,includingTuVLRSGLCEandsoon.

　　Specialsteelincludesasbelow:

　　Boilerandpressurevesselsteel

　　Pipelinesteel

　　Bridgesteel

　　Nuclearpowersteel

　　Structuralsteel

　　Diesteel

　　Highstrengthsteel

　　Abrasionresistantsteel

　　Weathering,corrosionresistantandfireresistantsteel

　　Highrisebuildingsteel

　　Shipbuildingandoffshoreengineeringsteel

　　Q:Areyouamanufacturerormerelyatrader

　　A:Wearegroupofcompaniesandownedmanufacturerbasesandtradingcompany.Wespecializedinspecialsteelwhichincludealloystructuralsteelandcarbonsteelandstainlesssteel,etc.Allmaterialarewithhighqualityandcompetitiveprice.

　　Q:Howdoyouguaranteethequalityofyourproduct

　　A:Firstly,wecanprovidethecertificatesfromthethirdparty,suchasTUV,CE,ifyouneed.Secondly,wehaveacompletesetofinspectionsystemandeveryprocessischeckedbyQC.Qualityisthelifelineofenterprisesurvival.

　　Q:Deliverytime

　　A:Wehavereadystockformostofmaterialgradesinourwarehouse.Ifthematerialdon'thavestock,thedeliveryleadtimeisabout5-30daysafterreceivingyourprepaymentorfirmorder.

　　Q:Whatisthepaymentterm

　　A:T/TorL/C.

　　Q:Canyouprovideasampleforourtestingbeforeconfirmingtheorder

　　A:Yes.Wecanprovidesampletoyouforapprovalbeforeyouplaceanordertous.Freesampleisavailableifwehavestock.

　　Q:Canwevisityourcompanyandfactory

　　Customervisiting:

　　Warmlywelcome!PickupyourphoneandCallus!

　　Sendustheinquiryhere!

　　Wewillreplyyouatthefirsttime.

　　ContactUS:

　　AnnieWang