ASTM A 53 A 53M-2007(10)

ASTM材料标准

SUPPLEMENTARYREQUIREMENTS

Thefollowingsupplementaryrequirementsshallapplyonlywhenspeci edinthepurchaseorder.Thepurchasermayspecifyadifferentfrequencyoftestthanisprovidedinthesupplementaryrequirement.Subjecttoagreementbetweenthepurchaserandmanufacturer,retestandretreatmentprovisionsofthesesupplementaryrequirementsmayalsobemodi ed.

S1.FlatteningTest,SeamlessPipe

S1.4Super cialrupturesasaresultofsurfaceimperfectionsS1.1Atestspecimenatleast21 2in.[60mm]inlengthshallshallnotbecauseforrejection.

be attenedcoldbetweenparallelplatesintwosteps.DuringS1.5ForpipewithaD-to-tratiolessthan10,becausethethe rststep,whichisatestforductility,exceptasallowedbystrainimposedduetogeometryisunreasonablyhighontheS1.3,S1.4,andS1.5,nocracksorbreaksontheinside,outside,orendsurfacesshallbepresentbeforethedistancebetweentheinsidesurfaceatthe6and12o’clocklocations,cracksatsuchplatesislessthanthevalueofHcalculatedasfollows:

locationsshallnotbecauseforrejection.

S1.6OnetestshallbemadeontestspecimenstakenfromH5~11e!t/~e1t/D!

onelengthofpipefromeachlotofeachpipesize.Alotshallwhere:

containnomorethanoneheat,andattheoptionoftheH=distancebetween atteningplates,in.[mm],

manufacturershallcontainnomorethan500lengthsofpipee=deformationperunitlength(constantforagivengrade

(asinitiallycutafterthe nalpipe-formingoperation,priortoofsteel,0.09forGradeA,and0.07forGradeB),anyfurthercuttingtotherequiredorderedlengths)or50tonst=speci edwallthickness,in.[mm],and[45Mg]ofpipe.

D=speci edoutsidediameter,in.[mm]

S1.7IftheresultsofatestforalotfailtoconformtotheTheHvalueshavebeencalculatedforstandard-weightandapplicablerequirements,thelotshallberejectedunlesstestsofextra-heavyweightpipefromNPS21 additionalpipefromtheaffectedlotofdoublethenumber2toNPS24[DN65toDN600],inclusive,andaregiveninTableX2.1.

originallytestedaresubsequentlymadeandeachsuchtestS1.2Duringthesecondstep,whichisatestforsoundness,conformstothespeci edrequirements.Onlyoneretestofanythe atteningshallbecontinueduntilthetestspecimenbreakslotwillbepermitted.Anyindividuallengthofpipethatortheoppositesidesofthetestspecimenmeet.Evidenceofconformstothetestrequirementsisacceptable.Anyindividuallaminatedorunsoundmaterialthatisrevealedduringtheentirelengthofpipethatdoesnotconformtothetestrequirements atteningtestshallbecauseforrejection.

mayberesubmittedfortestandwillbeconsideredacceptableS1.3Surfaceimperfectionsinthetestspecimenbeforeifteststakenfromeachpipeendconformtothespeci ed attening,butrevealedduringthe rststepofthe atteningrequirements.

test,shallbejudgedinaccordancewiththe nishrequirementsinSection12.

APPENDIXES

(NonmandatoryInformation)X1.DEFINITIONSOFTYPESOFPIPE

X1.1TypeF,Furnace-Butt-WeldedPipe,Continuous-longitudinalbuttjointwhereincoalescenceisproducedbytheWeldedPipe—Pipeproducedinmultiplelengthsfromcoiledheatobtainedfromresistanceofthepipetothe owofelectricskelpandsubsequentlycutintoindividuallengths,havingitslongitudinalbuttjointforgeweldedbythemechanicalpressurecurrentinacircuitofwhichthepipeisapart,andbythedevelopedinrollingthehot-formedskelpthroughasetofapplicationofpressure.

roundpassweldingrolls.

X1.3TypeS,SeamlessPipe—PipemadewithoutaweldedX1.2TypeE,Electric-Resistance-WeldedPipe—Pipepro-seam.Itismanufacturedbyhotworkingsteeland,ifnecessary,ducedinsinglelengths,orinmultiplelengthsfromcoiledbysubsequentlycold nishingthehot-workedtubularproductskelpandsubsequentlycutintoindividuallengths,havinga

toproducethedesiredshape,dimensions,and

properties.

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