optim mc structural steel
DESCRIPTION
Aço OptimTRANSCRIPT
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OptimMCstructuralsteelExtra high strength Optim MC structural steelgrades offer excellent bendability, weldability and cutting properties.Lightenedstructuresmean increasedpayloads formachinesandequipment, reduced fuel consumption, environmentallysound construction and sustainable development. Surface quality and dimensional and geometrical accuracy areguaranteed.
OptimMCisathermomechanicallyrolled(M),coldformable(C)structuralsteelwhichmeetsandexceedstherequirementsofEN101492.
Estimatefuelsavingswithenergycalculator
Applications:
Framestructuresformobilevehicles
Superstructuresofcommercialvehicles
Framesandboomsforforestryvehicles
Cranearmsandotherliftingequipment
Loadhandlingequipment
Masts
Theinformationonourwebsiteisaccuratetothebestofourknowledgeandunderstanding.Althougheveryefforthasbeenmadetoensureaccuracy,thecompanycannotacceptanyresponsibilityforanydirectorindirectdamagesresultingfrompossibleerrorsorincorrect
applicationoftheinformationofthispublication.Wereservetherighttomakechanges.
Copyright2014RautaruukkiCorporation.Allrightsreserved.
Documentprintedon30.10.2014 www.ruukki.com
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Dimensions
Cutlengthswithmilledges
RuukkiOptim Thicknessmm Widthmm1) Lengthm1)
Optim500MC 2.012 10001800 213
Optim550MC 2.210 10001640 213
Optim600MC 2.210 10001640 213
Optim650MC 2.510 10001640 213
Optim700MC 3.010 10001550 213
Optim700MCPlus 3.012 10001525 2121)Exactmaximumwidthandlengthdependonthethickness.
Moreover,OptimMCsteelsarealsoavailableascoilsandslitstrips.Pickledproductsareavailableonalimiteddimensionalrange.
Tolerances
Tolerancesondimensionsandshapes
Thedimensionandshapetolerancesconformwith,andinpartexceed,EN10051requirements.Flatnessofcutlengthsis3mm/m.OptimMCcutlengthsaredeliveredwiththeDeadFlatguarantee.
Surfacequality
Cutlengths,coilsandslitstripsareavailableinasrolledorpickledcondition.Somedimensionallimitationsexistforpickledproducts.
Properties
Mechanicalproperties:tensiletest
OptimMCsteels.Tensiletest,longitudinaltesting
Steelgrade Thicknessmm Yieldstrength Tensilestrength Elongation%Minimum
RuukkiOptim ReHorRp0,2MPaMinimum
RmMPa A801) A
Optim500MC 212 500 550700 14 18
Optim550MC 2.210 550 600760 13 17
Optim600MC 2.210 600 650820 12 16
Optim650MC 2.510 6502) 700880 12 14
Optim700MC 310 7002) 750950 NA 13
Optim700MCPlus 312 7002) 750950 NA 13
Yieldandtensilestrengtharetestedlongitudinallytotherollingdirection,andguaranteedbothinthelongitudinalandtransversedirections.1)ElongationA80isusedforthicknessbelow3mm.2)Forthickness>8mm,theminimumyieldstrengthcanbe20MPalower,accordingtoEN101492.
Mechanicalproperties:impactstrengthtest
OptimMCsteels.Impactstrength,longitudinaltesting
OptimMCstructuralsteel
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RuukkiOptim Testtemperature,Energylevel Testtemperature,Energylevel
500/550/600/650MC 20C40Jminimum 40C27Jminimum
700MC1) 20C40Jminimum 40C27Jminimum
700MCPlus2) 60C40Jminimum NA
The requirement value 40 J means tests carried out with 10 x 10 longitudinal standard test pieces. When testingthicknesseslessthan10mm,thewidthofthetestpiecescorrespondswiththestripthicknessandtherequirementvaluesdecreaseindirectrelationtothesurfaceareaofthetestpiece.Noimpacttestsarecarriedoutforthicknesseslessthan6mm.1)Ifagreeduponseparately,Optim700MCcanalsobedeliveredwithguaranteedimpactstrengthCharpyV29Jatthetemperatureof40C.2)Optim700MCPlus:Impactstrengthisguaranteedinthetransversedirectionalso.
Chemicalcomposition
Content%(ladleanalysis)
RuukkiOptim CMaximum
SiMaximum
MnMaximum
PMaximum
SMaximum
AlMinimum
Optim500MC 0.10 0.20 1.50 0.020 0.010 0.015
Optim550MC 0.10 0.20 1.70 0.020 0.010 0.015
Optim600MC 0.10 0.20 1.90 0.020 0.010 0.015
Optim650MC 0.10 0.20 2.00 0.020 0.010 0.015
Optim700MC 0.10 0.20 2.10 0.020 0.010 0.015
Optim700MCPlus 0.10 0.25 2.10 0.020 0.010 0.015
Inaddition,niobium(Nb),vanadium(V),titanium(Ti),boron(B),molybdenum(Mo),nickel(Ni)orcopper(Cu)maybeusedasalloyingelementseithersinglyorincombination.
Carbonequivalentvalues(CEV)
CEV=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15
RuukkiOptim CEVAverage CEVMaximum
Optim500MC 0.32 0.36
Optim550MC 0.33 0.38
Optim600MC 0.34 0.41
Optim650MC 0.35 0.41
Optim700MC 0.37 0.41
Optim700MCPlus1) 0.37 0.40
Optim700MCPlus2) 0.40 0.44
1)Inthethicknessrangeof310mmCEVaverageis0.37andmaximumis0.40.2)Inthethicknessrangeof(10)12mmCEVaverageis0.40andmaximumis0.44.
Prefabricationservices
Wideflats
Wide flatsarecomponentswhichare ready forassembly.Theyaredimensionallyaccuratespeedingup themanufactureandassemblyofsteelstructuresand,avoidingwastingmaterial.Thankstotheextensiverangeavailable,steelgradesbestsuitedfortheapplicationinquestioncanbeused.
OptimMCstructuralsteel
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Precisioncutlengths
Precisioncutlengthswithabevellededgearecomponentsthatcanbedelivereddirectlytotheinstallationsite,whichsavestimeandreducestransportandstoragecosts.Thedimensionallyaccurategrooveensuresuninterruptedautomatedweldingandfitting.
Processinginstructions
Welding
Theweldabilityisexcellentandallthecommonweldingprocessescanbeused.Preheatingisnotnecessaryundernormalconditions.Anarrowheataffectedzone(HAZ)withasomewhatlowerstrengthisformedimmediatelyadjacenttotheweld.Thesofteningtendencycanbelimitedbyavoidingunnecessarilyhighheatinputduringwelding.Inapplicationswherehighstrength is required, the welded joints should be placed in the less stressed locations. So, the effect of welds on thestructure will be minimised. Matching welding materials are recommended when high strength of the weld is needed.Alternatively,undermatchingconsumablesmaybeusediftheweldislocatedinalessstressedpartofthestructure.
Cutting
OptimMCsteelscanbecuteasilybyusingthermalmethodssuchasflame,plasmaandlasercutting.Mechanicalcuttingcanalsobeapplied,butattentionmustbepaidtothestiffnessoftheequipment,bladeconditionandclearance,andsupportoftheworkpiece.
Bending
OptimMC.Minimumpermissiblebendradius,bendangle90,inalldirections
RuukkiOptim Thickness(mm)
t3 3
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Order&delivery
Inspectiondocument
InspectiondocumentsareinaccordancewithEN102043.1.
Generaldeliveryinformationforhotrolledsteels
GeneraldeliveryinformationforhotrolledsteelscanbefoundfromdocumentsMarkingsandpackingandGeneraltermsofsale.
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OptimMCstructuralsteel
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