美国ASTM标准A 999 – A 999M – 01 _QTK5OS9BOTK5TQ__

StandardSpecificationfor

GeneralRequirementsforAlloyandStainlessSteelPipe1ThisstandardisissuedunderthefixeddesignationA999/A999M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.

1.Scope

1.1Thisspecification2coversagroupofgeneralrequire-mentsthat,unlessotherwisespecifiedinanindividualspeci-fication,shallapplytotheASTMproductspecificationsnotedbelow.

1.2Inthecaseofconflictbetweenarequirementofaproductspecificationandarequirementofthisspecification,theproductspecificationshallprevail.Inthecaseofconflictbetweenarequirementoftheproductspecificationorarequirementofthisspecificationandamorestringentrequire-mentofthepurchaseorder,thepurchaseordershallprevail.

TitleofSpecification

ASesigna-tion3arenotexactequivalents;thereforeeachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.Theinch-poundunitsshallapplyunlessthe“M”designation(SI)oftheproductspecificationisspecifiedintheorder.

NOTE1—ThedimensionlessdesignatorNPS(nominalpipesize)isusedinthisstandardforsuchtraditionaltermsas“nominaldiameter,”“size,”“nominalbore,”and“nominalsize”.

SeamlessandWeldedAusteniticStainlessSteelPipeA312/A312MSeamlessandWeldedSteelPipeforLow-TemperatureA333/A333MService

SeamlessFerriticAlloy-SteelPipeforHighTemperatureA335/A335MService

Electric-Fusion-WeldedAusteniticChromium-NickelAlloyA358/A358MSteelPipeforHigh-TemperatureService

CarbonandFerriticAlloySteelForgedandBoredPipeforA369/A369MHigh-TemperatureService

SeamlessAusteniticSteelPipeforUseWithHighTemperatureA376/A376MCentral-StationService

WeldedLargeDiameterAusteniticSteelPipeforCorrosiveA409/A409MorHigh-TemperatureService

Welded,UnannealedAusteniticStainlessSteelTubularA778Products

SeamlessandWeldedFerritic/AusteniticStainlessSteelPipeA790/A790MSingle-orDouble-WeldedAusteniticStainlessSteelPipeA813/A813MCold-WorkedWeldedAusteniticStainlessSteelPipeA814/A814MFerritic/Austenitic(Duplex)StainlessSteelPipeElectricA928FusionWeldedwithAdditionofFillerMetal

Spray-FormedSeamlessAusteniticStainlessSteelPipeA943Spray-FormedSeamlessFerritic/AusteniticStainlessSteelA949Pipe

AusteniticChromium-Nickel-SiliconAlloySteelSeamlessA9andWeldedPipe

1.4Thefollowingprecautionarystatementpertainsonlytothetestmethodportion,Section21,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.

2.ReferencedDocuments2.1ASTMStandards:

A370TestMethodsandDefinitionsforMechanicalTestingofSteelProducts4A700PracticesforPackaging,Marking,andLoadingMethodsforSteelProductsforDomesticShipment4A751TestMethods,Practices,andTerminologyforChemicalAnalysisofSteelProducts5D3951PracticeforCommercialPackaging6E29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications7E213PracticeforUltrasonicExaminationofMetalPipeandTubing8E273PracticeforUltrasonicExaminationofLongitudinalWeldedPipeandTubing8E309PracticeforEddy-CurrentExaminationofSteelTu-bularProductsUsingMagneticSaturation8E426PracticeforElectromagnetic(Eddy-Current)Exami-nationofSeamlessandWeldedTubularProducts,Austen-iticStainlessSteelandSimilarAlloys8E570PracticeforFluxLeakageExaminationofFerromag-neticSteelTubularProducts81.3Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystem

ThisspecificationisunderthejurisdictionofASTMCommitteeA01onSteel,StainlessSteel,andRelatedAlloysandisthedirectresponsibilityofSubcommitteeA01.10onAlloySteelTubularProducts.

CurrenteditionapprovedMarch10,2001.PublishedMay2001.OriginallypublishedasA999/A999M–98.LastpreviouseditionA999/A999M–98.2ForASMEBoilerandPressureVesselCodeapplicationsseerelatedSpecifi-cationSA999inSectionIIofthatCode.3Thesedesignationsrefertothelatestissueoftherespectivespecifications.SeeAnnualBookofASTMStandards,Vol01.01.

145AnnualAnnual6Annual7Annual8AnnualBookBookBookBookBookofofofofofASTMASTMASTMASTMASTMStandards,Standards,Standards,Standards,Standards,VolVolVolVolVol01.05.01.03.15.09.14.02.03.03.

Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.

1

2.2ANSIStandards:

B36.10WeldedandSeamlessWroughtSteelPipe9B36.19StainlessSteelPipe92.3MilitaryStandards:

MIL-STD-163SteelMillProducts,PreparationforShip-mentandStorage10MIL-STD-271NondestructiveTestingRequirementsforMetals10MIL-STD-792IdentificationMarkingRequirementsforSpecialPurposeEquipment102.4FederalStandard:

Fed.Std.No.183ContinuousIdentificationMarkingofIronandSteelProducts102.5SteelStructuresPaintingCouncil:

SSPC-SP6SurfacePreparationSpecificationNo.6Com-mercialBlastCleaning112.6ASNTStandards:

SNT-TC-1ARecommendedPracticeforPersonnelQualifi-cationandCertificationinNondestructiveTesting123.Process

3.1Thesteelshallbemadebyasuitableprocess.

3.2Ifsecondarymelting,suchaselectroslagremeltingorvacuumremelting,isused,theheatshallbedefinedasalloftheingotsremeltedfromasingleprimaryheat.

3.3Whensteelsofdifferentaresequentiallystrandcast,theresultanttransitionmaterialshallberemovedusinganestab-lishedprocedurethatpositivelyseparatesthegrades.

3.4Ifaspecifictypeofmeltingisrequiredbythepurchaser,itshallbespecifiedonthepurchaseorder.

4.OrderingInformation

4.1Itistheresponsibilityofthepurchasertospecifyallrequirementsthatarenecessaryformaterialorderedundertheproductspecificationandthisspecification.Suchrequirementstobeconsideredinclude,butarenotlimitedto,thefollowing:4.1.1Quantity(feet,metres,ornumberofpieces),4.1.2Nameofmaterial(stainlesssteelpipe),

4.1.3Process,whenapplicable(seamlessorwelded),4.1.4GradeorUNSnumber,

4.1.5Size(NPSandoutsidediameterandschedulenumber,average(nominal)wallthickness(see8.1and9.1),ormini-mumwallthickness(see8.2and9.1.1),orminimuminsidediameter(see10.1)),

4.1.6Length(specificorrandom),4.1.7Endfinish,

4.1.8Optionalrequirements,

4.1.9Specifictypeofmelting,ifrequired(see3.4),4.1.10Certifiedtestreportrequirements,

9PortionsofthesestandardsappearinASTMBookofStandards,Vol01.01.FulltextofthesestandardsisavailablefromAmericanNationalStandardsInstitute,11West42ndSt.,13thfloor,NewYork,NY10036.10AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700RobbinsAve.,Philadelphia,PA19111-5094,Attn:NPODS.11AvailablefromSteelStructuresPaintingCouncil,4400FifthAve.,Pittsburgh,PA15213.12AvailablefromAmericanSocietyforNondestructiveTesting,1711ArlingtonPlaza,P.O.Box28518,Columbus,OH43228–0518.

4.1.11Specificationdesignationanddateofissue,and4.1.12Specialrequirementoranysupplementaryrequire-ments,orboth.

5.ChemicalComposition

5.1ChemicalAnalysis—SamplesforchemicalanalysisandmethodofanalysisshallbeinaccordancewithTestMethods,Practices,andTerminologyA751.

5.2HeatAnalysis—Ananalysisofeachheatofsteelshallbemadebythesteelmanufacturertodeterminethepercentagesofthespecifiedelements.Ifsecondarymeltingprocessesareemployed,theheatanalysisshallbeobtainedfromoneremeltedingotortheproductofoneremeltedingotofeachprimarymelt.Thechemicalcompositionthusdetermined,orthatdeterminedfromaproductanalysismadebythetubularproductmanufacturershallconformtotherequirementsspeci-fied.

5.3ProductAnalysis—Productanalysisrequirementsandoptions,ifany,arecontainedintheproductspecification.6.MechanicalProperties

6.1MethodofMechanicalTests—ThespecimensandthemechanicaltestsrequiredshallbeinaccordancewithTestMethodsandDefinitionsA370,especiallyAnnexA2thereof.6.2Specimensshallbetestedatroomtemperature.

6.3SmallorsubsizespecimensasdescribedinTestMeth-odsandDefinitionsA370maybeusedonlywhenthereisinsufficientmaterialtoprepareoneofthestandardspecimens.Whenusingsmallorsubsizespecimens,thelargestonepossibleshallbeused.

7.TensileRequirements

7.1Thematerialshallconformtotherequirementsastotensilepropertiesintheindividualproductspecification.

7.2Theyieldstrength,whenspecified,shallbedeterminedcorrespondingtoapermanentoffsetof0.2%ofthegagelengthortoatotalextensionof0.5%ofthegagelengthunderload.7.3Ifthepercentageofelongationofanytestspecimenislessthanthatspecifiedandanypartofthefractureismorethan3⁄4in.[19.0mm]fromthecenterofthegagelength,asindicatedbyscribemarksonthespecimenbeforetesting,aretestshallbeallowed.

8.PermissibleVariationinWeightforSeamlessPipe

8.1Exceptasnotedin8.2,theweightofanylengthofseamlesspipeNPS12andundershallnotvarymorethan10%overthe3.5%underthatspecified.ForsizesoverNPS12,theweightofanylengthofpipeshallnotvarymorethan10%overand5%underthatspecified.Unlessotherwisespecified,pipeofNPS4andsmallermaybeweighedinconvenientlots;pipeinsizeslargerthanNPS4shallbeweighedseparately.8.2MinimumWall—Whenthewallthicknessofthepipeisspecifiedasminimumwallinthepurchaseorder,theweightofanylengthofseamlesspipeshallnotvarymorethan16%overthatcalculatedinaccordancewith13.3.Unlessotherwisespecified,pipeofNPS4andsmallermaybeweighedinconvenientlots;pipeinsizeslargerthanNPS4shallbeweighedseparately.

9.PermissibleVariationsinWallThickness

9.1SeamlessandWelded—Exceptasnotedin9.1.1,theminimumwallthicknessatanypointshallnotbemorethan12.5%underthenominalwallthicknessspecified.Themini-mumwallthicknessoninspectionisshowninTableX1.1.9.1.1MinimumWall—Whenthewallthicknessofthepipeisspecifiedasminimumwallinthepurchaseorder,thereshallbenovariationunderthespecifiedwallthickness.

9.2ForgedandBored—Thewallthicknessshallnotvaryoverthatspecifiedbymorethan1⁄8in.[3.2mm].Thereshallbenovariationunderthespecifiedwallthickness.

9.3Cast—Thewallthicknessshallnotvaryoverthatspecifiedbymorethan1⁄16in.[1.6mm].Thereshallbenovariationunderthespecifiedwallthickness.

10.PermissibleVariationsinInsideDiameter

10.1ForgedandBored,andCast—Theinsidediametershallnotvaryunderthatspecifiedbymorethan1⁄16in.[1.6mm].Thereshallbenovariationoverthespecifiedinsidediameter.

11.PermissibleVariationinOutsideDiameter

11.1Variationsinoutsidediameter,unlessotherwiseagreedupon,shallnotexceedthelimitsprescribedinTable1.Thetolerancesonoutsidediameterincludeovalityexceptasprovidedforin11.2and11.2.1.(SeeNote2.)

11.2Forthin-wallpipe,definedaspipehavingawallthicknessof3%orlessoftheoutsidediameter,thediametertoleranceofTable1isapplicableonlytothemeanoftheextreme(maximumandminimum)outsidediameterreadingsinanyonecross-section.

11.2.1Forthin-wallpipethedifferenceinextremeoutsidereadings(ovality)inanyonecross-sectionshallnotexceed1.5%ofthespecifiedoutsidediameter.

NOTE2—Thin-wallpipeusuallydevelopssignificantovality(out-of-roundness)duringfinalannealing,straightening,orboth.ThediametertolerancesofTable1areusuallynotsufficienttoprovideforadditionalovalityexpectedinthin-wallpipe.

12.PermissibleVariationsinLength

12.1SeamlessandWelded(NoFillerMetalAdded)—Ifspecificcutlengthsof24ft[7.3m]orlessareordered,nolengthofpipeshallbeunderthelengthspecifiedormorethan1⁄4in.[6mm]overthatspecified.

12.1.1Permissiblevariationsinlengthforlengthsgreaterthan24ft[7.3m]shallbesubjecttoagreementbetweenthemanufacturerandpurchaser.

TABLE1PermissibleVariationsinOutsideDiameter

NPSPermissibleVariationsinOutsideDiameter

Designator

OverUnder

in.

mmin.mm1⁄8-11⁄2,incl1⁄(0.015)0.41⁄32(0.031)0.8Over11⁄2to4,incl1⁄32(0.031)0.81⁄32(0.031)0.8Over4to8,incl1⁄16(0.062)1.61⁄32(0.031)0.8Over8to18,incl3⁄32(0.093)2.41⁄32(0.031)0.8Over18to26,incl1⁄8(0.125)3.21⁄32(0.031)0.8Over26to34,incl5⁄32(0.156)4.01⁄32(0.031)0.8Over34to48,incl

3⁄16(0.187)

4.8

1⁄32(0.031)

0.8

12.2ForgedandBored,Cast,andCastCold-Wrought—Ifspecificcutlengthsareordered,nolengthofpipeshallbeunderthelengthspecifiedormorethan1⁄8in.[3mm]overthatspecified.

12.3Forpipeorderedtorandomlengths,thelengthsandvariationsshallbeagreeduponbetweenthemanufacturerandpurchaser.

12.4Nogirthweldsarepermittedunlessagreeduponbythemanufacturerandpurchaser.

13.StandardWeight(WeightperUnitLength)

13.1AsystemofstandardpipesizeshasbeenapprovedbytheAmericanNationalStandardsInstituteasANSIB36.10andB36.19.Thestandardsizesdonotprohibittheproductionanduseofothersizesofpipeproducedtothevariousproductspecificationsreferencedin1.1.(SeeNote3.)

13.2Fornonstandardsizesofpipe,thecalculatedweightperfootshallbedeterminedfromthefollowingequation:

W5C~D2t!t

(1)

where:

C=10.69[0.02466],W=weight,lb/ft[kg/m],

D=specifiedorcalculated(fromspecifiedinsidediameter

andwallthickness)outsidediameter,in.[mm],andt=specifiedwallthickness,in.(to3decimalplaces)[mm

to2decimalplaces].

13.3Whenminimumwallthicknessisspecifiedonthepurchaseorder,thecalculatedweightperfootshallbedeter-minedusingEq1,obtainingfromTableX1.1thenominalwallthickness,t,correspondingtothatminimumwall.

NOTE3—TheweightsgivenintheAmericanNationalStandardsandthecalculatedweightsgivenbyEq1arebasedontheweightsforcarbonsteelpipe.Theweightofpipemadeofferriticstainlesssteelsmaybeuptoabout5%less,andthatmadeofausteniticstainlesssteeluptoabout2%greaterthanthevaluesgiven.

14.Ends

14.1Unlessotherwisespecified,thepipeshallbefurnishedwithplainends.Allburrsattheendsofthepipeshallberemoved.

15.Straightness

15.1Thefinishedpipeshallbereasonablystraight.

15.2Formetal-arcweldedpipe,themaximumdeviationfroma10-ft[3.0-m]straightedgeplacedsothatbothendsareincontactwiththepipeshallbe1⁄8in.[3.2mm].Formetal-arcweldedpipewithlengthsshorterthan10ft[3.0m],thismaximumdeviationshallbeproratedwithrespecttotheratiooftheactuallengthto10ft[3.0m].

16.RepairbyWelding

16.1Repairbyweldingofdefectsinseamlesspipe(includ-ingcentrifugallycastpipeandforgedandboredpipe)andofplatedefectsinweldedpipeand,whenspecificallystatedbytheproductspecification,weldseamdefectsinweldedpipeshallbepermittedsubjecttotheapprovalofthepurchaserandwiththefurtherunderstandingthatthecompositionofthedepositedfillermetalshallbesuitableforthecomposition

beingwelded.Defectsshallbethoroughlychippedorgroundoutbeforeweldingandeachrepairedlengthshallbereheattreatedorstressrelievedasrequiredbytheapplicablespecifi-cation.Eachlengthofrepairedpipeshallbenondestructivelytestedasrequiredbytheproductspecification.

16.2RepairweldingshallbeperformedusingproceduresandweldersorweldingoperatorsthathavebeenqualifiedinaccordancewiththeASMEBoilerandPressureVesselCode,SectionIX.17.Retests

17.1Iftheresultsofthecertificationtestsofanylotdonotconformtotherequirementsspecifiedintheindividualspeci-fication,retestsmaybemadeonadditionallengthsofpipeofdoubletheoriginalnumberfromthesamelot,eachofwhichshallconformtotherequirementsspecified.Onlyoneretestofanylotwillbepermitted.Nonconformancewillbecausefortherejectionofthelot.

17.2Anyindividuallengthofpipethatmeetsthetestrequirementsisacceptable.Individuallengthsthatdonotconformtothetestrequirementsmayberesubmittedfortestprovidedthereasonfornonconformanceisestablishedandthenonconformingportionremoved.18.Retreatment

18.1Ifindividuallengthsofpipeselectedtorepresentanylotfailtoconformtothetestrequirements,thelotrepresentedmaybereheattreatedandresubmittedfortest.Themanufac-turermayreheattreatthepipe,butnotmorethantwice,exceptwiththeapprovalofthepurchaser.19.TestSpecimens

19.1Testspecimensshallbetakenfromtheendsoffinishedpipepriortoanyformingoperations,orbeingcuttolength.19.2Specimenscuteitherlongitudinallyortransverselyshallbeacceptableforthetensiontest.

19.3Ifanytestspecimenshowsflawsordefectivemachin-ing,thespecimenmaybediscardedandanothersubstituted.20.FlatteningTestRequirements

20.1SeamlessandCentrifugallyCastPipe—Asectionofpipenotlessthan21⁄2in.[63mm]inlengthshallbeflattenedcoldbetweenparallelplatesintwosteps.Duringthefirststep,whichisatestforductility,nocracksorbreaksontheinside,outside,orendsurfaces,exceptasprovidedforin20.3.4,shalloccuruntilthedistancebetweentheplatesislessthanthevalueofHcalculatedasfollows:

H5~l1e!t/~e1t/D!

(2)

where:

H=distancebetweenflatteningplates,in.[mm],t=specifiedwallthickness,in.[mm],

D=specifiedoutsidediameter,outsidediametercorre-spondingtospecifiedANSIpipesize,oroutsidediametercalculatedbyadding2t(asdefinedabove)tothespecifiedinsidediameterin.[mm],and

e=deformationperunitlength(constantforagivengrade

ofsteel,0.07formediumcarbonsteel(maximumspecifiedcarbon0.19%orgreater),0.08forferriticalloysteel,0.09forausteniticsteel,and0.09forlow-carbonsteel(maximumspecifiedcarbon0.18%orless)).

Duringthesecondstep,whichisatestforsoundness,theflatteningshallbecontinueduntilthespecimenbreaksortheoppositewallsofthepipemeet.

20.2WeldedPipe—Asectionofweldedpipenotlessthan4in.[100mm]inlengthshallbeflattenedcoldbetweenparallelplatesintwosteps.Theweldshallbeplacedat90°fromthedirectionoftheappliedforce(atthepointofmaximumbending).Duringthefirststep,whichisatestforductility,nocracksorbreaksontheinsideoroutsidesurfaces,exceptasprovidedforin20.3.4,shalloccuruntilthedistancebetweentheplatesislessthanthevalueofHcalculatedbyEq2.Duringthesecondstep,whichisatestforsoundness,theflatteningshallbecontinueduntilthespecimenbreaksortheoppositewallsofthepipemeet.

20.3Seamless,CentrifugallyCast,andWeldedPipe:

20.3.1Evidenceoflaminatedordefectivematerialorweldthatisrevealedatanytimeduringtheentireflatteningtestshallbecauseforrejection.

20.3.2Surfaceimperfectionsnotevidentinthetestspeci-menbeforeflattening,butrevealedduringthefirststepofflatteningtest,shallbejudgedinaccordancewiththefinishrequirements.

20.3.3Superficialrupturesresultingfromsurfaceimperfec-tionsshallnotbeacauseforrejection.

20.3.4WhenlowD-to-tratiotubularproductsaretested,becausethestrainimposedduetogeometryisunreasonablyhighontheinsidesurfaceatthesixandtwelveo’clocklocations,cracksattheselocationsshallnotbecauseforrejectioniftheD-to-tratioislessthan10.21.NondestructiveTestRequirements

21.1Whenrequiredbytheapplicableproductspecificationorthepurchaseorder,thepipeshallbetestedbythehydrostatictest(see21.2)orbythenondestructiveelectricaltest(see21.3).

21.2HydrostaticTest:

21.2.1Exceptasprovidedin21.2.2and21.2.3,eachlengthofpipeshallbetestedbythemanufacturertoahydrostaticpressurewhichwillproduceinthepipewallastressnotlessthan60%oftheminimumspecifiedyieldstrengthforferriticalloyandstainlesssteelpipe,or50%ofthespecifiedmini-mumyieldstrengthforausteniticalloyandstainlesssteelpipeandforferritic/austeniticstainlesssteelpipe.Thetestpressureorstressshallbedeterminedbythefollowingequation:

P52St/DorS5PD/2t

(3)

where:

P=hydrostatictestpressureinpsi[MPa],S=pipewallstressinpsior[MPa],

t

=specifiedwallthickness,nominalwallthicknessac-cordingtospecifiedANSIschedulenumber,or1.143timesthespecifiedminimumwallthickness,in.[mm],and

D=specifiedoutsidediameter,outsidediametercorre-spondingtospecifiedANSIpipesize,oroutsidediametercalculatedbyadding2t(asdefinedabove)tothespecifiedinsidediameter,in.[mm].

21.2.1.1Thehydrostatictestpressuredeterminedbytheequationshallberoundedtothenearest50psi[0.5MPa]forpressuresbelow1000psi[7MPa],andtothenearest100psi[1MPa]forpressures1000psi[7MPa]andabove.Thehydrostatictestmaybeperformedpriortocuttingtofinallength,orpriortoupsetting,swaging,expanding,bending,orotherformingoperations.

21.2.2Regardlessofpipe-wallstress-leveldeterminedbyEq3,theminimumhydrostatictestpressurerequiredtosatisfytheserequirementsneednotexceed2500psi[17.0MPa]foroutsidediameters(seeDin21.2)of3.5in.[88.9mm]orless,or2800psi[19.0MPa]foroutsidediametersover3.5in.[88.9mm].Thisdoesnotprohibittestingathigherpressuresattheoptionofthemanufacturerorasprovidedin21.3.

21.2.3Withconcurrenceofthemanufacturer,aminimumhydrostatictestpressureinexcessoftherequirementsof21.2or21.1,orboth,maybestatedontheorder.

21.2.4Thetestpressureshallbeheldforaminimumof5s.Forweldedpipe,thetestpressureshallbeheldforatimesufficienttopermittheentirelengthoftheweldedseamtobeinspected.

21.2.5Thehydrostatictestmaynotbecapableoftestingtheendportionofthepipe.Thelengthofpipethatcannotbetestedshallbedeterminedbythemanufacturerand,whenspecifiedinthepurchaseorder,reportedtothepurchaser.21.3NondestructiveElectricTest:

21.3.1EachpipeshallbeexaminedwithanondestructivetestinaccordancewithPracticesE213,E309,E426,orE570.Unlessspecificallycalledoutbythepurchaser,theselectionofthenondestructiveelectrictestshallbeattheoptionofthemanufacturer.Uponagreementbetweenpur-chaserandmanufacturer,PracticeE273shallbeemployedinadditiontooneofthefullperipherytests.Therangeofpipesizesthatmaybeexaminedbyeachmethodshallbesubjecttothelimitationsinthescopeoftherespectivepractices.

21.3.2Thefollowinginformationisforthebenefitoftheuserofthisspecification:

21.3.2.1Thereferencestandardsdefinedin21.2.2-21.2.5areconvenientstandardsforcalibrationofnondestructivetestingequipment.Thedimensionsofthesestandardsshouldnotbeconstruedastheminimumsizeimperfectiondetectablebysuchequipment.

21.3.2.2Theultrasonictesting(UT)canbeperformedtodetectbothlongitudinallyandcircumferentiallyorientedde-fects.Itshouldberecognizedthatdifferenttechniquesshouldbeusedtodetectdifferentlyorientedimperfections.Theexaminationmaynotdetectshortdeepdefects.

21.3.2.3Theeddy-currenttesting(ET)referencedinthisspecification,(seePracticesE426andE309),hasthecapa-bilityofdetectingsignificantdiscontinuities,especiallyofthe

shortabrupttype.Thesensitivityofthistestdecreaseswiththicknessover0.25in.(6mm).

21.3.2.4Thefluxleakageexaminationreferredtointhisspecificationiscapableofdetectingthepresenceandlocationofsignificantlongitudinallyortransverselyorienteddisconti-nuities.However,sensitivityofthetesttovarioustypesofdiscontinuitiesisaffectedbythecalibration,anddifferenttechniquesshouldbeemployedtodetectdifferentlyorientedimperfections.

21.3.2.5Apurchaserinterestedinascertainingthenature(type,size,location,andorientation)ofdiscontinuitiesthatcanbedetectedinthespecificapplicationoftheseexaminationsshoulddiscussthiswiththemanufacturerofthetubularproduct.

21.3.3TimeofExamination:

21.3.3.1Nondestructivetestingforspecificationacceptanceshallbeperformedafterallmechanicalprocessing,heattreatments,andstraighteningoperations.Thisequipmentdoesnotprecludeadditionaltestingatearlierstagesintheprocess-ing.

21.3.4SurfaceCondition:

21.3.4.1Allsurfacesshallbefreeofscale,dirt,grease,paint,andotherforeignmaterialthatcouldinterferewithinterpretationoftestresults.Themethodsusedforcleaningandpreparingthesurfacesforexaminationshallnotbedetrimentaltothebasemetalorthesurfacefinish.

21.3.4.2Excessivesurfaceroughnessordeepscratchescanproducesignalsthatinterferewiththetest.21.3.5ExtentofExamination:

21.3.5.1Therelativemotionofthepipeandthetransduc-er(s),coil(s),orsensor(s)shallbesuchthattheentirepipesurfaceisscanned,exceptasin21.3.5.2.

21.3.5.2Theexistenceofendeffectsisrecognized,andtheextentofsucheffectsshallbedeterminedbythemanufacturer,and,ifrequested,shallbereportedtothepurchaser.Othernondestructivetestsmaybeappliedtotheendareas,subjecttoagreementbetweenthepurchaserandthemanufacturer.21.3.6OperatorQualifications:

21.3.6.1Thetestunitoperatorshallbecertifiedinaccor-dancewithSNT-TC-1A,oranequivalentrecognizedanddocumentedstandard.21.3.7TestConditions:

21.3.7.1Foreddy-currenttesting,theexcitationcoilfre-quencyshallbechosentoensureadequatepenetrationyetprovidegoodsignal-to-noiseratio.

21.3.7.2Themaximumeddy-currentcoilfrequencyusedshallbeasfollows:

Onspecifiedwallsupto0.050in.-100kHzmaxOnspecifiedwallsupto0.150in.-50kHzmax

Onspecifiedwallsequaltoorgreaterthan0.150in.-10kHzmax

21.3.7.3Ultrasonic—Forexaminationbytheultrasonicmethod,theminimumnominaltransducerfrequencyshallbe2.00MHzandthemaximumnominaltransducersizeshallbe1.5in.

21.3.7.4Iftheequipmentcontainsarejectnoticefiltersetting,thisshallremainoffduringcalibrationandtestingunlesslinearitycanbedemonstratedatthesetting.21.3.8ReferenceStandards:

21.3.8.1Referencestandardsofconvenientlengthshallbepreparedfromalengthofpipeofthesamegrade,size(NPS,oroutsidediameterandscheduleorwallthickness),surfacefinishandheattreatmentconditionsasthepipetobeexamined.21.3.8.2ForUltrasonicTesting,thereferenceIDandODnotchesshallbeanyoneofthethreecommonnotchshapesshowninPracticeE213,attheoptionofthemanufacturer.Thedepthofeachnotchshallnotexceed121⁄2%ofthespecifiedwallthicknessofthepipeor0.004in.[0.1mm],whicheverisgreater.Thewidthofthenotchshallnotexceedtwicethedepth.NotchesshallbeplacedonboththeODandIDsurfaces.21.3.8.3ForEddy-CurrentTesting,thereferencestandardshallcontain,attheoptionofthemanufacturer,anyoneofthefollowingdiscontinuities:

21.3.8.4DrilledHole—Thereferencestandardshallcon-tainthreeormoreholes,equallyspacedcircumferentiallyaroundthepipeandlongitudinallyseparatedbyasufficientdistancetoallowdistinctidentificationofthesignalfromeachhole.Theholesshallbedrilledradiallyandcompletelythroughthepipewall,withcarebeingtakentoavoiddistortionofthepipewhiledrilling.Oneholeshallbedrilledintheweld,ifvisible.Alternately,theproducerofweldedpipemaychoosetodrilloneholeintheweldandrunthecalibrationstandardthroughthetestcoilsthreetimeswiththeweldturnedat120°oneachpass.Theholediametershallbenolargerthanasfollows:

NPSDesignatorHoleDiameter1⁄

20.039in.[1mm]above1⁄2to11⁄40.055in.[1.4mm]above11⁄4to20.071in.[1.8mm]above2to50.087in.[2.2mm]above5

0.106in.[2.7mm]

21.3.8.5TransverseTangentialNotch—Usingaroundtoolorafilewitha1⁄4in.[6.4mm]diameter,anotchshallbefiledormilledtangentialtothesurfaceandtransversetothelongitudinalaxisofthepipe.Saidnotchshallhaveadepthnotexceeding121⁄2%ofthespecifiedwallthicknessofthepipeor0.004in.[0.10mm],whicheverisgreater.

21.3.8.6LongitudinalNotch—Anotchof0.031in.[0.8mm]orlessinwidthshallbemachinedinaradialplaneparalleltothetubeaxisontheoutsidesurfaceofthepipe,tohaveadepthnotexceeding121⁄2%ofthespecifiedwallthicknessofthepipeor0.004in.[0.10mm],whicheverisgreater.

21.3.8.7Moreorsmallerreferencediscontinuities,orboth,maybeusedbyagreementbetweenthepurchaserandthemanufacturer.

21.3.9StandardizationProcedure:

21.3.9.1Thetestapparatusshallbestandardizedatthebeginningandendofeachseriesofpipesofthesamesize(NPSordiameterandscheduleorwallthickness),gradeandheattreatmentcondition,andatintervalsnotexceeding4h.Morefrequentstandardizationmaybeperformedatthemanu-facturer’soptionandmayberequireduponagreementbetweenthepurchaserandthemanufacturer.

21.3.9.2Thetestapparatusshallalsobestandardizedafteranychangeintestsystemsettings,changeofoperator,equip-mentrepair,orinterruptionduetopowerloss,processshut-downorwhenaproblemissuspected.

21.3.9.3Thereferencestandardshallbepassedthroughthetestapparatusatthesamespeedandtestsystemsettingsasthepipetobetested.

21.3.9.4Thesignal-to-noiseratioforthereferencestandardshallbe21⁄2to1orgreater.Extraneoussignalscausedbyidentifiablecausessuchasdings,scratches,dents,straightenermarks,etc.,shallnotbeconsiderednoise.Therejectionamplitudeshallbeadjustedtobeatleast50%offullscaleofthereadoutdisplay.

21.3.9.5Ifuponanystandardization,therejectionampli-tudehasdecreasedby29%(3dB)ofpeakheightfromthelaststandardization,thepipetestedsincethelastcalibrationshallberejected.Thetestsystemsettingsmaybechanged,orthetransducer(s),coil(s)orsensor(s)adjusted,andtheunitrestan-dardized,butallpipetestedsincethelastacceptablestandard-izationmustberetestedforacceptance.21.3.10EvaluationofImperfections:

21.3.10.1Pipesproducingasignalequaltoorgreaterthanthelowestsignalproducedbythereferencestandard(s)shallbeidentifiedandseparatedfromtheacceptablepipes.Theareaproducingthesignalmaybereexamined.

21.3.10.2Suchpipesshallberejectedifthetestsignalwasproducedbyimperfectionsthatcannotbeidentifiedorwasproducedbycracksorcrack-lifeimperfections.Thesepipesmayberepairedwhensuchrepairispermittedbytheappli-cableproductspecification.Tobeaccepted,arepairedpipemustpassthesamenondestructivetestbywhichitwasrejected,anditmustmeettheminimumwallthicknessrequire-mentsoftheapplicableproductspecification.

21.3.10.3Ifthetestsignalswereproducedbyvisualimper-fectionssuchas:scratches;surfaceroughness;dings;straight-enermarks;cuttingchips;steeldiestamps;stopmarks,orpipereducerripple.Thepipemaybeacceptedbasedonvisualexaminationprovidedthattheimperfectionislessthan0.004in.[0.1mm]or121⁄2%ofthespecifiedwallthickness,whicheverisgreater.

21.3.10.4Rejectedpipemaybereconditionedandretestedprovidingthatthewallthicknessisnotdecreasedtolessthanthatrequiredbytheapplicableproductspecification.Theoutsidediameteratthepointofgrindingmaybereducedbytheamountsoremoved.Tobeaccepted,retestedpipeshallmeetthetestrequirement.

21.3.10.5Iftheimperfectionisexploredtotheextentthatitcanbeidentifiedasnon-rejectable,thepipemaybeacceptedwithoutfurthertestprovidedthattheimperfectiondoesnotencroachontheminimumrequiredwallthickness.22.Inspection

22.1Theinspectorrepresentingthepurchasershallhaveentryatalltimesworkonthecontractofthepurchaserisbeingperformed,toallpartsofthemanufacturer’sworksthatconcernthemanufactureofthematerialordered.Themanu-facturershallaffordtheinspectorallreasonablefacilitiestosatisfyhimthatthematerialisbeingfurnishedinaccordancewiththisspecification.Allrequiredtestsandinspectionshallbemadeattheplaceofmanufacturepriortoshipment,unlessotherwisespecified,andshallbeconductedsoasnottointerfereunnecessarilywithoperationoftheworks.

23.Rejection

23.1Eachlengthofpipereceivedfromthemanufacturermaybeinspectedbythepurchaserand,ifitdoesnotmeettherequirementsofthespecificationbasedontheinspectionandtestmethodasoutlinedinthespecification,thelengthmayberejectedandthemanufacturershallbenotified.Dispositionofrejectedpipeshallbeamatterofagreementbetweenthemanufacturerandthepurchaser.

23.2Pipethatfailsinanyoftheformingoperationsorintheprocessofinstallationandisfoundtobedefectiveshallbesetasideandthemanufacturershallbenotifiedformutualevaluationofthesuitabilityofthepipe.Dispositionofsuchpipeshallbematterforagreement.

24.CertifiedTestReport

24.1Whenspecifiedinthepurchaseorderorcontract,theproducerorsuppliershallfurnishacertifiedtestreportcerti-fyingthatthematerialwasmanufactured,sampled,tested,andinspectedinaccordancewiththespecification,includingyeardate,thesupplementaryrequirements,andanyotherrequire-mentsdesignatedinthepurchaseorderorcontract,andtheresultsmettherequirementsofthatspecification,thesupple-mentaryrequirementsandtheotherrequirements.Asignatureornotarizationisnotrequiredonthecertifiedtestreport,butthedocumentshallbedatedandshallclearlyidentifytheorganizationsubmittingthereport.(SeeNote4.)

NOTE4—Notwithstandingtheabsenceofasignatureornotarization,theorganizationsubmittingtheReportisresponsibleforthecontentsofthereport.

24.2Inaddition,thecertifiedtestreportshallincludethefollowinginformationandtestresults,whenapplicable:24.2.1Heatnumber,24.2.2Heatanalysis,

24.2.3Productanalysisifspecifiedorrequired,24.2.4Tensileproperties,

24.2.5Widthinthegagelength,whenlongitudinalstriptensiontestspecimensareused,24.2.6Bendtestacceptable,24.2.7Flatteningtestacceptable,24.2.8Hydrostatictestpressure,

24.2.9Nondestructiveelectrictestpressure,24.2.10Impacttestresults,and

24.2.11Othertestresultsorinformationrequiredtobereportedbytheproductspecification.

24.3Testresultsorinformationrequiredtobereportedbysupplementaryrequirements,orotherrequirementsdesignatedinthepurchaseorderorcontractshallbereportedbutmaybereportedinaseparatedocument.

24.4Thecertifiedtestreportshallincludeastatementofexplanationfortheletteraddedtothespecificationnumbermarkedonthetubes(see25.5)whenalloftherequirementsofthespecificationhavenotbeencompleted.Thepurchasermustcertifythatallrequirementsofthespecificationhavebeencompletedbeforetheremovaloftheletter(thatis,X,Y,orZ).24.5Amaterialtestreport,certificateofinspection,orsimilardocumentprintedfromorusedinelectronicformfromanelectronicdatainterchange(EDI)transmissionshallberegardedashavingthesamevalidityasacounterpartprintedin

thecertifier’sfacility.ThecontentoftheEDItransmitteddocumentshallmeettherequirementsoftheinvokedASTMstandard(s)andconformtoanyexistingEDIagreementbe-tweenthepurchaserandsupplier.Notwithstandingtheabsenceofasignature,theorganizationsubmittingtheEDItransmis-sionisresponsibleforthecontentofthereport.

25.ProductMarking

25.1Eachlengthofpipeshallbelegiblymarkedwiththemanufacturer’snameorbrand,thespecificationnumber(yearofissuenotrequired)andgrade.Markingshallbeginapproxi-mately12in.[300mm]fromtheendofeachlengthofpipe.ForpipelessthanNPS2andpipeunder3ft[1m]inlength,therequiredinformationmaybemarkedonatagsecurelyattachedtothebundleorboxinwhichthepipesareshipped.25.2Whenpipemarkedasspecifiedisrejected,theASTMdesignationshallbecanceled.

25.3Forausteniticsteelpipe,themarkingpaintorinkshallnotcontaindetrimentalamountsofharmfulmetals,ormetalsalts,suchaszinc,lead,orcopper,whichcausecorrosiveattackonheating.

25.4Pipesthathavebeenweldrepairedinaccordancewith16.1shallbemarkedWR.

25.5WhenitisspecifiedthatcertainrequirementsofaspecificationadoptedbytheASMEBoilerandPressureVesselCommitteearetobecompletedbythepurchaseruponreceiptofthematerial,themanufacturershallindicatedthatallrequirementsofthespecificationhavenotbeencompletedbyalettersuchasX,Y,orZ,immediatelyfollowingthespecificationnumber.Thislettermayberemovedaftercomple-tionofallrequirementsinaccordancewiththespecification.Anexplanationofspecificationrequirementstobecompletedisprovidedin24.1.

26.Packaging,Marking,andLoading

26.1Whenspecifiedonthepurchaseorder,packaging,marking,andloadingforshipmentshallbeinaccordancewiththeproceduresofPracticesA700.

27.GovernmentProcurement

27.1Whenspecifiedinthecontractororder,thefollowingrequirementsshallbeconsideredintheinquiry,contract,ororderforagenciesoftheU.S.Governmentwherescale-freepipeisrequired.Theserequirementsshalltakeprecedenceifthereisaconflictbetweentheserequirementsandtheproductspecification.

27.2Pipeshallbeorderedtonominalpipesize(NPS)andschedule.NominalpipeshallbeasspecifiedinANSIB36.10.27.3ResponsibilityforInspection—Unlessotherwisespeci-fiedinthecontractorpurchaseorder,themanufactureisresponsiblefortheperformanceofallinspectionandtestrequirementsspecified.Theabsenceofanyinspectionrequire-mentsinthespecificationshallnotrelievethecontractoroftheresponsibilityforensuringthatallproductsorsuppliessubmit-tedtothegovernmentforacceptablecomplywithallrequire-mentsofthecontract.Samplinginspection,aspartofthemanufacturingoperations,isanacceptablepracticetoascertainconformancetorequirements,however,thisdoesnotauthorize

submissionofknowndefectivematerial,eitherindicatedoractual,nordoesitcommitthegovernmenttoacceptthematerial.Exceptasotherwisespecifiedinthecontractorpurchaseorder,themanufacturermayusehisownoranyothersuitablefacilitiesfortheperformanceoftheinspectionandtestrequirementsunlessdisapprovedbythepurchaseratthetimetheorderisplaced.Thepurchasershallhavetherighttoperformanyoftheinspectionsandtestssetforthwhensuchinspectionsandtestsaredeemednecessarytoensurethatthematerialtoconformstotheprescribedrequirements.

27.4SamplingforFlatteningandFlaringTestandforVisualandDimensionalExamination—Minimumsamplingforflatteningandflaringtestsandvisualanddimensionalexami-nationshallbeasfollows:

LotSize(PiecesperLot)SampleSize2to8EntireLot

9to9011to15012151to28019281to50021501to1200271201to3200353201to100003810001to35000

46

Inallcases,theacceptancenumberiszeroandtherejectionnumberisone.Rejectedlotsmaybescreenedandresubmittedforvisualanddimensionalexamination.Alldefectiveitemsshallbereplacedwithacceptableitemspriortolotacceptance.27.5SamplingforChemicalAnalysis—Onesampleforchemicalanalysisshallbeselectedfromeachtwopipeschosenfromeachlot.Alotshallbeallmaterialpouredfromoneheat.27.6SamplingforTensionandBendTest—Onesampleshallbetakenfromeachlot.Alotshallconsistofallpipeofthesameoutsidediameterandwallthicknessmanufacturedduringan8-hshiftfromthesameheatofsteel,andheattreatedunderthesameconditionsoftemperatureandtimeinasinglechargeinabatchtypefurnace,orheattreatedunderthesameconditioninacontinuousfurnace,andpresentedforinspectionatthesametime.

27.7HydrostaticandUltrasonicTests—Eachpipeshallbetestedbytheultrasonic(whenspecified)andhydrostatictests.27.8Pipeshallbefreefromheavyoxideorscale.TheinternalsurfaceofhotfinishedferriticsteelpipeshallbepickledorblastcleanedtoafreeofscaleconditionequivalenttotheCSa2visualstandardinSSPC-SP6.Cleaningshallbeperformedinaccordancewithawrittenprocedurethathasbeenshowntobeeffective.Thisprocedureshallbeavailableforaudit.

27.9Inadditiontothemarkingrequiredbythisspecifica-tion,eachlengthofpipeNPS1⁄4orlargershallbemarked,in

accordancewithFED-STD-183andMIL-STD-792,withthenominalpipesize,schedulenumber,length,andheatnumberorlotidentificationnumber.

27.10PipeshallbestraighttowithinthetoleranceinTable2.

27.11Whenspecified,eachpipeshallbeultrasonicallyexaminedinaccordancewithMIL-STD-271,exceptthatthenotchdepthinthecalibrationstandardshallbe5%ofthewallthicknessor0.005in.[0.1mm],whicheverisgreater.Anypipethatproducesanindicationequaltoorgreaterthan100%oftheindicationfromthecalibrationstandardshallberejected.27.12Thepipeshallbefreefromrepairwelds,weldedjoints,laps,laminations,seams,visiblecracks,tears,grooves,slivers,pits,andotherimperfectionsdetrimentaltothepipeasdeterminedbyvisualandultrasonicexamination,oralternatetests,asspecified.

27.13Pipeshallbeuniforminqualityandconditionandhaveafinishconformingtothebestpracticeforstandardqualitypipe.Surfaceimperfectionssuchashandlingmarks,straighteningmarks,lightmandrelanddiemarks,shallowpits,andscalepatternwillnotbeconsideredinjuriousiftheimperfectionsareremovablewithinthetolerancesspecifiedforwallthicknessor0.005in.[0.1mm],whicheverisgreater.Thebottomofimperfectionsshallbevisibleandtheprofileshallberoundedandfaired-in.

27.14Noweldrepairbythemanufacturerispermitted.27.15PreservationshallbelevelAorcommercial,andpackingshallbelevelA,B,orcommercial,asspecified.LevelApreservationandlevelAorBpackingshallbeinaccordancewithMIL-STD-163andcommercialpreservationandpackingshallbeinaccordancewithPracticesA700orPracticeD3951.28.Keywords

28.1alloysteelpipe;austeniticstainlesssteel;duplexstain-lesssteel;ferritic/austeniticstainlesssteel;seamlesssteelpipe;stainlesssteelpipe;steelpipe;weldedsteelpipe

TABLE2StraightnessTolerances

MaximumSpecifiedWallCurvatureinMaximumCurvatureSpecifiedOD,in.AThickness,in.Aany3ft,in.AinTotalLength,in.AUpto5.0,incl.

Over3%ODto

0.0300.0103length,ft0.5,incl.

Over5.0to8.0,incl.Over4%ODto

0.0450.0153length,ft0.75incl.

Over8.0to12.75,incl.Over4%ODto

0.060

0.0203length,ft

1.0,incl.

A1in.=25.4mm.

ANNEX

(MandatoryInformation)

A1.REQUIREMENTSFORTHEINTRODUCTIONOFNEWMATERIALS

A1.1NewmaterialsmaybeproposedforinclusioninspecificationsreferencingthisSpecificationofGeneralRe-quirementssubjecttothefollowingconditions:

A1.1.1Applicationfortheadditionofanewgradetoaspecificationshallbemadetothechairmanofthesubcommit-teewhichhasjurisdictionoverthatspecification.

A1.1.2Theapplicationshallbeaccompaniedbyastatementfromatleastoneuserindicatingthatthereisaneedforthenewgradetobeincludedintheapplicablespecification.

A1.1.3Theapplicationshallbeaccompaniedbytestdataasrequiredbytheapplicablespecification.Testdatafromaminimumofthreetestlots,asdefinedbythespecification,eachfromadifferentheat,shallbefurnished.

A1.1.4Theapplicationshallproviderecommendationsforallrequirementsappearingintheapplicablespecification.A1.1.5Theapplicationshallstatewhetherthenewgradeiscoveredbypatent.

APPENDIX

(NonmandatoryInformation)

X1.MINIMUMWALLTHICKNESSONINSPECTIONFORNOMINAL(AVERAGE)PIPEWALLTHICKNESS

TABLEX1.1MinimumWallThicknessesonInspectionforNominal(Average)PipeWallThicknesses

NOTE1—Thefollowingequation,uponwhichthistableisbased,maybeappliedtocalculateminimumwallthicknessfromnominal(average)wallthickness:

tn30.875=tmwhere:

tn=nominal(average)wallthickness,in.[mm],andtm=minimumwallthicknesses,in.[mm],

Thewallthicknessisexpressedtothreedecimalplaces,thefourthdecimalplacebeingcarriedforwardordropped,inaccordancewithPracticeE29.NOTE2—Thistableisamastertablecoveringwallthicknessesavailableinthepurchaseofdifferentclassificationsofpipe,butitisnotmeanttoimplythatallofthewallslistedhereinareobtainableunderthisspecification.

Nominal(Average)

Thickness

(tn)in.0.0680.0680.0910.0950.1130.1190.1250.1260.1330.1400.1450.1470.10.1560.1790.1870.1880.1910.2000.203

[mm][1.73][2.24][2.31][2.41][2.87][3.02][3.18][3.20][3.38][3.56][3.68][3.73][3.91][3.96][4.55][4.75][4.78][4.85][5.06][5.16]

MinimumThicknessonInspection

(tm)in.0.0600.0770.0800.0830.0990.1040.1090.1100.1160.1220.1270.1290.1350.1360.1570.10.10.1670.1750.178

[mm][1.52][1.96][2.03][2.11][2.51][2.][2.77][2.79][2.95][3.10][3.23][3.28][3.43][3.45][3.99][4.17][4.17][4.24][4.44][4.52]

Nominal(Average)

Thickness

(tn)in.0.2940.3000.3070.3080.3120.3180.3220.3300.3370.3430.3440.3580.3650.3750.3820.4000.4060.4320.4360.437

[mm][7.47][7.62][7.80][7.82][7.92][8.08][8.18][8.38][8.56][8.71][8.74][9.09][9.27][9.52][9.70][10.16][10.31][10.37][11.07][11.10]

MinimumThicknessonInspection

(tm)in.0.2570.2620.2690.2700.2730.2780.2820.20.2950.3000.3010.3130.3190.3280.3340.3500.3550.3780.3820.382

[mm][6.53][6.65][6.83][6.86][6.93][7.06][7.17][7.34][7.49][7.62][7.65][7.95[[8.10][8.33][8.48][8.][9.02][9.60][9.70][9.70]

Nominal(Average)

Thickness

(tn)in.0.7500.8120.8430.80.8750.9060.9370.9681.0001.0311.0621.0831.1251.1561.2181.2501.2811.3121.3431.375

mm[19.05][20.62[[21.41][21.95][22.22][23.01][23.80][24.50][25.40][26.19][26.97][27.76][28.57][29.36][30.94][31.75][32.][33.32][34.11][34.92]

MinimumThicknessonInspection

(tm)in.0.6580.7100.7360.7560.7660.7830.8200.8470.8750.9020.9290.9569.9841.0121.0661.0941.1211.1481.1751.203

[mm][16.62][18.03][18.75][19.20][19.49][20.14][20.83][21.51][22.22][22.91][23.60][24.28][24.99][25.70][27.08][27.77][28.47][29.16][29.84][30.56]

TABLEX1.1ContinuedNominal(Average)

Thickness

(tn)in.0.2160.2180.2190.2260.2370.2500.2580.2760.2770.2790.2800.281

[mm][5.49][5.][5.56][5.74][6.03][6.35][6.55][7.01][7.04][7.09][7.11][7.14]

MinimumThicknessonInspection

(tm)in.0.10.1910.1920.1960.2070.2190.2260.2420.2420.2440.2450.246

[mm][4.80][4.85][4.88][5.03][5.23][5.56][5.74][6.15][6.15][6.20][6.22][6.25]

Nominal(Average)

Thickness

(tn)in.0.4380.5000.5310.5520.5620.5930.6000.6250.6560.6740.6870.719

[mm][11.13][12.70][13.49][14.02][14.27][15.06][15.24][15.88][16.62][17.12][17.45][18.26]

MinimumThicknessonInspection

(tm)in.0.3830.4380.4650.4830.4920.5190.5250.70.5730.5900.6010.629

[mm][9.73][11.13][11.81][12.27][12.50][13.18][13.34][13.][14.55][14.99][15.27][15.98]

Nominal(Average)

Thickness

(tn)in.1.4061.4361.5001.5311.5621.5931.7501.7811.8121.9682.0622.343

mm[35.71][36.52][36.10][38.][39.67][40.46][44.45][45.24][46.02][49.99][52.38][59.51]

MinimumThicknessonInspection

(tm)in.1.2301.2581.3121.3401.3671.3941.5311.5581.5861.7721.8042.050

[mm][31.24][31.95][33.32][34.04][34.72][35.40][38.][39.57][49.28][43.74][45.82][52.07]

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