E01404403.docx

E01404403.docx

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E01404403

RE-VERIFYASLATESTREVISIONINTHEPDMSYSTEMEACHDAYOFUSE

DATEANDINITIAL

REQUIREMENTSPECIFICATION

E014044

Revision03

SEAMLESSTUBINGFORSTOREDGASINFLATORS

Thisdocumentisapproved/releasedthroughtheelectronicMatrixsystem.

ElectronicapprovalsandreleasedatesareinMatrix.

Preparedby:

GregLanham

ProcessEngineer

Approvedby:

Thefollowingindividualsortheiralternateelectronicallyapprovedthisdocument

NAMETITLE

MichaelPerezDesignEngineer

GregLanhamProcessEngineer

AutolivASP,Inc.

3350AirportRoad,Ogden,UT84405

REVISIONSUMMARY

RevisionDateofReleaseDescriptionofChanges

0010September2001OriginalRelease

017March2003RevisedSections4.3.3,4.7,4.8,and6.3toaccommodatenewtubesizes

0231May2005CorrectedSection4.7ultrasonicreferencelengthtomatchtubingdrawing.AddedBentelerSteeltoApprovedSourcelistinSection6.3

03CheckMatrixRevisedSection4.7toprovideclarificationofrequirednon-destructivetesting

TABLEOFCONTENTS

1.0SCOPE

2.0APPLICABLEDOCUMENTS

3.0TERMINOLOGY

4.0REQUIREMENTS

4.1Form

4.2Chemistry

4.3MechanicalProperties

4.3.1TensileTesting

4.3.2FlatteningTests

4.3.3CharpyImpactStrength

4.4HeatTreatedCondition

4.5DropWeightTest

4.6Ductile-to-BrittleTestTemperature

4.7Non-DestructiveTestingandSurfaceQuality

4.8HydroburstPressureTesting

5.0QUALITYASSURANCEPROVISIONS

5.1ResponsibilityforInspection

5.2ClassificationofInspection

5.3QualityConformanceInspection

5.4TestMethods

5.4.1ChemicalAnalysis

5.4.2MechanicalProperties

5.4.3DropWeightTest

5.4.4Non-DestructiveEvaluation

5.4.5HydroburstPressure

5.5Sampling

5.5.1ChemicalAnalysis

5.5.2MechanicalProperties

5.5.3DropWeightTest

5.5.4Non-DestructiveTesting

5.5.5HydroburstPressureTesting

5.6Retesting

5.6.1RetestQuantities

5.6.2RetestLocation

5.6.3RetestofMechanicalProperties

6.0NOTES

6.1IntendedUse

6.2GradeDesignation

6.3ApprovedSource

1.0SCOPE

Thisspecificationdefinesrequirementsforseamlesssteeltubingtobeusedforstoredgasinflatorpressurevessels.

2.0APPLICABLEDOCUMENTS

Thefollowingdocumentsformapartofthisspecificationtotheextentspecifiedherein.Unlessotherwiseindicated,theissueineffectondateofinvitationforbidsorrequestforproposalshallapply.

STANDARDS

AmericanSocietyforTestingandMaterials（ASTM）

∙STMA751TestMethods,Practices,andTerminologyforChemicalAnalysisof

SteelProducts

∙ASTME8StandardTestMethodsofTensionTestingofMetallicMaterials

∙ASTMA519StandardSpecificationforSeamlessCarbonandAlloySteelMechanical

Tubing

∙ASTME23TestMethodsforNotchedBarImpactTestingofMetallicMaterials

∙ASTME213PracticeforUltrasonicExaminationsofMetalPipeandTubing

（ApplicationsforcopiesshouldbeaddressedtoTheAmericanSocietyforTestingandMaterials,100BarrHarborDrive,WestConshohcken,PA19428）

SPECIFICATIONS

AutolivASP

∙RS5265RequirementSpecificationforMechanicalTestingofSteelTubingand

IntegralChambers

3.0TERMINOLOGY

Heat:

Materialfromasingleladleofsteelusedtoproducetubingorchambers.

HeatTreatLot:

Allcold-drawntubes,beforefinalstraighteningandcuttingofthesame

nominaldiameterandwallthicknessthatare:

∙producedfromthesameheatlot

∙heat-treatedinthesamecontinuousfurnaceatthesametemperatureinthesameproductionrun.

4.0REQUIREMENTS

4.1Form

TubingshallbeintheformofroundcolddrawnseamlesstubingperASTMA519,latestrevision,asmodifiedperthisspecificationandtheapplicabledrawing.

4.2Chemistry

Theproductanalysisshallconformtothefollowingchemistryrequirements:

ElementWeight%

Carbon0.07to0.12%Ladle,0.15%maximumcheckanalysis

Manganese1.1to1.6%

Silicon0.15to0.35%

Sulfur0.015%max

Sulfur+Phosphorous0.025%max

Chromium0.65%max

Nickel0.25to0.5%

Aluminum0.050%max

4.3MechanicalProperties

4.3.1TensileTesting

ThetestspecimenusedshallconformtotherequirementsofSection4.2ofRS5265.Basedonafull-size,tubular-sectionspecimenwitha2-inchgagelengthatroomtemperature,thematerialshallhavethefollowingmechanicalproperties:

YieldStrength

85ksi（586MPa）minimum

TensileStrength

101to130ksi（696-896MPa）

Elongation

16%minimum

4.3.2FlatteningTests

FlatteningtestingshallconformtotherequirementsofSection4.3.1ofRS5265.Nocrackingshallbeobservedinthesamples,asdescribedinSection4.3.2ofRS5265.

4.3.3CharpyImpactStrength

CharpyimpacttestingshallbeconductedinaccordancewithASTME23.Thedimensionsandminimumenergyabsorbedat–40°Cshallbeasfollows:

TubeSize

CharpySampleSize

MinimumEnergyAbsorbed

25×2.0mm

55×10×1.8mm

8.0ft-lbs.（11.0Joules）

30×2.5mm

55×10×2.3mm

10.0ft-lbs.（13.5Joules）

35×2.5mm

55×10×2.3mm

10.0ft-lbs.（13.5Joules）

35×3.0mm

55×10×2.5mm

10.0ft-lbs.（13.5Joules）

60×2.49mm

55×10×2.3mm

15.0ft-lbs.（20.6Joules）

65×2.77mm

55×10×2.5mm

15.0ft-lbs.（20.6Joules）

4.4HeatTreatedCondition

Thematerialshallbeinthequenchedandtemperedcondition.

4.5DropWeightTest

ThedropweighttestshallbeperformedperSection4.4ofRS5265.Thetestshallbeperformedatambientandat–55°C.Nocrackingofthespecimenshallbefound.

4.6Ductile-To-BrittleTestTemperature:

Theductile-to-brittletesttemperature（TT）,asdefinedinSection4.4ofRS5265shallbe–55°Cmaximum.

4.7NondestructiveTestingandSurfaceQuality

Tubingshallbefreeofharmfulorinjuriousdefectsasdetectedbynondestructivetests,andshallbeinaconditionsuitablefordownstreamprocessing.Nondestructivetestingshallbeperformedon100percentofthefinalproductinaccordancewithASTME213orequivalent.Thepitchoffeedshallcover100%ofthesurface,withaminimum10%overlap.Referencestandardsshallberectangularshaped,withaminimumsizeasfollows:

TubeSize

ReferenceDepth

ReferenceWidth

ReferenceLength

25×2.0mm

0.2mm

0.3mm

15mm

30×2.5mm

0.2mm

0.3mm

15mm

35×2.5mm

0.2mm

0.3mm

15mm

35×3.0mm

0.3mm

0.3mm

15mm

60×2.49mm

0.25mm

0.3mm

15mm

65×2.77mm

0.27mm

0.3mm

15mm

Additionalnondestructivetestssuchaseddycurrentorcircographinspectionmaybeperformed,butshallbeincludedintheControlPlan.

4.8HydroburstPressure

Hydroburstpressuretestingshallbeperformedbysealingtheendsofatubesection,forexamplebyweldingflatsteelplugstotheendsofthetube.Itisimportantthata150-mmpipesectionremainsconstraintfree,sothatfullhoopstresscandevelop.Thepressurizationofthetubesectionshallbeperformedbypumpingoil,water,oramixturethereofintothepipethroughanappropriateopeninginthesteelplugs.

Thebursttestistomeetthefollowingminimumrequirementatroomtemperature:

TubeSize

MinimumBurstStrength

25×2.0mm

20,000psi（138MPa）

30×2.5mm

22,000psi（152MPa）

35×2.5mm

19,000psi（131MPa）

35×3.0mm

23,000psi（158MPa）

60×2.49mm

9,800psi（68MPa）

65×2.77mm

9,800psi（68MPa）

5.0QUALITYASSURANCEPROVISION

5.1ResponsibilityforInspection

Thesuppliershallberesponsibleforthequalityofthematerialfurnishedandshallmakethenecessaryteststoensurethisquality.

5.2ClassificationofInspection

Examinationandtestingofthematerialisclassifiedasqualityconformanceinspection.

5.3QualityConformanceInspection

AMaterialTestReport（MTR）shallbesentforeachmaterialdeliveryshowingthespecificationnumber,POnumber,length,quantity,andheatnumber.TheMTRshallcontainthetestresultsofSections4.2through4.8ofthisspecification.

5.4TestMethods

5.4.1ChemicalAnalysis

ChemicalanalysisshallbeperformedinaccordancewithASTMA751orequivalent.

5.4.2MechanicalProperties

MechanicalpropertiesshallbetestedinaccordancewithRS5265orASTME8orequivalent.

5.4.3DropWeightTest

TheDropWeightTestshallbeperformedaccordingtoSection4.4ofRS5265.

5.4.4NondestructiveEvaluation

Non-destructivetestingon100percentofthetubingshallbeperformedperSection4.7ofthisspecification.

5.4.5HydroburstPressure

HydroburstTestingshallbeperformedperSection4.8ofthisspecification.

5.5Sampling

5.5.1ChemicalAnalysis

5.5.1.1Heat（LadleAnalysis）

ThechemicalcompositionofeachheatshallbedeterminedandshallconformtotherequirementslistedinSection4.2.

5.5.1.2ProductAnalysis

Aproductanalysisshallbemadeoneachheat-treatlot.ThechemicalcompositionthusdeterminedshallconformtotherequirementslistedinSection4.2.

5.5.2MechanicalProperties

Onetension-testspecimenshallbetakenoneachheat-treatlot.Documentationofthistestingshallincludethefollowinginformation:

∙Materialidentification（i.e.,lotnumber）

∙Specimentype

∙YieldStrength

∙TensileStrength

∙Elongationatfractureandgagelengthused

5.5.3DropWeightTest

Onedrop-weightspecimenpertemperatureshallbetestedforeachheat-treatlot.Documentationofthistestingshallreportwhetherallspecimensexhibited100-percentductiledeformation（nocracking）attesttemperature.

5.5.4Non-Destructivetesting

Thetubingshallbe100-percentinspectedandconformtothecalibrationstandardofSection4.0.

5.5.5HydroburstPressure

Onehydroburstpressuretestshallbeperformedoneachheat-treatlot.

5.6Retesting

Whenaproductfailstomeetthespecificationrequirements,noretestsareallowed.Iftheaccuracyofthetestresultsisquestionable,asingleretestmaybeperformedtodetermineproducta