钢铁相关术语表英语.docx

钢铁相关术语表英语.docx

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钢铁相关术语表英语

Glossary

Numeroustermsareusedinconnectionwiththemanufacture,saleanduseofcoatedsteelsheet.Thefollowinglistdefinesthemorecommonterms:

A|B|C|D| E|F| G| H|I| K|L|M|O| P| Q| R|S| T| U|W|Y

A

Aging-Changesinphysicalandmechanicalpropertiesthatoccurwhenlowcarbonsteelisstoredforsometime. Agingisalsoacceleratedbyexposureofsteeltoelevatedtemperatures.

Annealing-Aprocessinvolvinghigh-temperatureheatingandcoolingoftheas-rolledcoldrolledsteelsubstratetomakeitsofterandmoreformable.

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B

BackerCoat-Usuallyreferstothecoatingonthereversesideofaprepaintedsheet.Thebackercoatingisgenerallynotasnarrowlyspecifiedwithreferencetoitscolor,thicknessandcompositionasisthetopcoat.

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C

Camber-Thedeviationofasideedgefromastraightline,themeasurementbeingtakenontheconcavesidewithastraightedge.

CarbonSteel-Steelwhichowesitspropertieschieflytocarbonwithoutsubstantialamountsofotheralloyingelements;alsoknownasstraightcarbonsteelorplaincarbonsteel.

ChemicalTreatment-Anaqueoussolutionofcorrosion-inhibitingchemicals,typicallychromatesorchromate/phosphate.

CoilBreaks-Creasesorridgesinsheetthatappearasparallellinesacrossthedirectionofrolling,andthatgenerallyextendthefullwidthofthesheetorstrip. AlsoreferredtoasLüder'sLines.

ColdRolledProducts-Flatrolledproductsforwhichtherequiredfinalthicknesshasbeenobtainedbyrollingatroomtemperature.

ColorStandard-Apaintedsheetpanelwithaprescribedcolorofpaintrepresentingtheprecisecoloritisintendedtoproduceintheprepaintedsheet.Thecolorstandardwillpreferablyalsobeexpressedintermsofphysicalattributesofhue,lightnessandsaturationcalledtristimulusvaluesorderivativesofthesevalues.Acompletecolorstandarddefinitionwillusuallyincludepaintedpanelsrepresentativeofthelimitsofacceptabledeviationfromtheprecisestandardcoloraswell.

CommercialSteel（CS）-Sheetofthisqualityisforsimplebendingormoderateforming. CommercialSteelsheetcanbebentflatuponitselfinanydirectionatroomtemperature.

ContinuousCasting-Acastingtechniqueinwhichacastshapeiscontinuouslywithdrawnthroughthebottomofthemoldasitsolidifies,sothatitslengthisnotdeterminedbymolddimensions.

ConversionCoating-Thechemicaltreatmentfilmappliedtothesteelormetalliccoatedsheetpriortopainting.

Corrosion-Gradualchemicalorelectrochemicalattackonametalbyatmosphericmoistureorotheragents.

CriticalSurface-Intendedformaterialappliedtocriticalexposed/paintedapplicationswherecosmeticsurfaceimperfectionsareobjectionable.Theprimesidesurfacewillbefreeofrepetitivetypeimperfections,gouges,scratches,scaleandslivers.Thissurfacecanonlybefurnishedasapickledproduct.

Crown-Acontouronasheetwherethethicknessincreasesfromsomeedgemeasurementtothecenter.

CutEdge-Removaloftheas-rolledhotmilledge.Coilendsarecroppedbacktogaugewhencutedgeisordered.

CuttoLength-Whenaspecificordiscretelengthisspecified.

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D

DeepDrawing-Theprocessofworkingmetalblanksindiesonapressintoshapeswhichareusuallymoreorlesscup-likeincharacter.

Drawing-Formingrecessedpartsbyforcingtheplasticflowofmetalindies.

DrawingSteel（DS）-SheetofthisqualityhasagreaterdegreeofductilityandismoreconsistentinperformancethanCommercialSteelbecauseofhigherstandardsinproduction,selectionandmeltingofthesteel.

DeepDrawingSteel（DDS）-SheetofthisdesignationshouldbeusedwhenDrawingSteelwillnotprovideasufficientdegreeofductilityforfabricationofpartshavingstringentdrawingrequirements,orapplicationsthatrequirethesheetbefreefromaging.Thisqualityismadebyspecialsteelmakingandfinishingpractices.

DentResistant-BHSeries -Sheetofthisdesignationisproducedfrompartiallystabilizedsteelandoffersauniquecombinationofas-receivedformabilityandfinalpropertiesafterfabrication. Sheetofthisdesignationcombinesstrengthandhighformability. Althoughthissteelisnon-agingatroomtemperature,itgainsstrengthfromwork-hardeningduringfabricationandfromcarbon-agingduringpaint-baking. （Sometimes referredtoas"bakehardenable."）

ExtraDeepDrawingSteel-Sheetofthisdesignationhassuperiorformabilityandexcellentuniformity. Itisproducedfromsteelhavingaverylowcarboncontentwithstabilizingelementsaddedtomakeitinterstitialfree. Itisanon-agingsteelsheetwithhighresistancetothinningduringdrawingandissuitableforcriticalformingapplications.

DryFilmThickness（DFT）-Thethicknessofthedrypaintfilm.

DSTypeBSteel-Productintendedforapplicationsthatrequireparticularlyseveredrawingandforming.

Ductility- Theabilitytopermitchangeofshapewithoutfracture. Inflatrolledsteel,ductilityisusuallymeasuredbyhardnessormechanicalpropertiesinatensiletest.

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E

Elongation-Thepercentincreaseofagivendistance（usually2inches）priortofractureduringtensiletesting.

Embossedsheet-Anembossedsheetisonehavingaprominent,impressedtextureorpatternonitssurface（s）.Ifthedefinedtextureisappliedtoessentiallyonsurfaceonly,itismostproperlytermedacoinedsurface.Ifthetextureorpatterncarriesthroughtheentirebodyofthesheetandappearsonbothsurfacesitisatrueembossedsurface.

ExtraSmoothGalvanized-AnExtra-Smoothfinishisimpartedtohot-dipmetallic-coatedsteelsheetbytemperrollingaftercoatingtodecreasethesurfacereliefthatoccurswhenthemoltencoatingsolidifies.Thespanglepattern（grainpattern）ismadedistinctlylessvisiblebythemattefinishimpartedbytherollingoperation.MostExtra-Smoothsheetisintendedforeitherprepaintedorpostpaintedapplications.

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F

Flatness-Flatnessisameasureofacutlengthsheet'sabilitytoconformtoaflathorizontalsurface.Maximumdeviationfromthatsurfaceisthedegreetowhichthesheetisoutofflat.FlatnessisoftenexpressedquantitativelyineitherSteepnessorI-Units.

FinishCoat-Thetopcoatorexposedprimesidepaintfilm.

Flexibility-Thedegreetowhichapaintfilmcanwithstanddeformationwithoutsignificantchangeincolorandappearance.

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G

Gloss-Thepropertyofasurfacerelatedtoitsabilitytoreflectlight.Themostcommontypeofglossofinteresttoappearanceattributesisspeculargloss.Theparameterswhichmustbespecifiedforthedeterminationofthispropertyaretheanglesofincidenceofthelightsource,theangleofviewingoftheglossandtheangulardispersionsofthemeasuringbeams.

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H

Hardness-Resistanceofmetaltopenetrationofthesurface.

HighStrength-Productintendedforapplicationswheregreaterstrengthiscritical. HighStrengthtypicallybeginsat35ksiminimumyieldstrength.

HighStrengthLowAlloy（HSLA）-Aspecificgroupofsteelsinwhichthestrengthlevelsareachievedbytheadditionofmoderateamountsofalloyingelements. Themostcommonarecolumbium,vanadiumortitanium.

HotRolledSheet-Steelsheetthatisprocessedtoitsfinalthicknessbyrollingathightemperaturesonaspeciallydesignedhot-rollingfacility. Alsocommonlyknownashotrolledunprocessed.

HotRolledSheetNon-TemperRolled-AU.S.SteeldefinitionforproductsuppliedasacoildirectlyofftheHotStripMillwithnoadditionalprocessing.

HotRolledSheetPickled-AU.S.Steeldefinitionforamilledgecoilthatispickled,oiledandtemperrolledwithcoilendscroppedbacktomeetgaugetolerances.

HotRolledSheetPickledNon-TemperRolled-AU.S.Steeldefinitionforamilledgecoilthatispickledandoiledwithcoilendscroppedbacktomeetgaugetolerances.

HotRolledSheetProducts-FlatsteelproductsthatarebroughttofinalthicknessbyrollingthroughaHotStripMillathightemperatures.

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I

ImpactTest-Atestwhichisintendedtoevaluatethebrittleness,toughness,adhesionandhardnessofpaintfilmsappliedtometalsbysubjectingthemtoanindentimpactforce.

Inclusions-Particlesofforeignmaterial（suchasoxides,sulfidesorsilicates）insteelascast.

InclusionShapeControl-Theuseofrareearthmetalsorcalciumalloystocontrolthemorphologyofinclusions,inordertoprovideimprovedmechanicalpropertiesforselectapplications.

IntercoatAdhesion-Theadherencewhichisobservedbetweentheprimerandtopcoatofapaintsystem.

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K

KilledSteel- Steelthatisdeoxidizedbysiliconoraluminumtoreducetheoxygencontentinthemoltensteeltoaminimumpriortosolidificationofthemetal.Killedsteelshavemoreuniformpropertiesandchemicalcompositionthanothertypes.

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L

Leveling-Flatteningofrolledsheetbyreducingoreliminatingdistortions.

Laminate-Acompositeconstructionofdissimilarmaterials,suchasametalandplasticfilm,usuallymadeupassheetproductandintendedtofunctionasthoughitwereasinglematerial.

Lüder'sLines-Seecoilbreaks.

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M

MatteFinish-Amoreuniformsurfacefinishimparted