SP844000000006.docx
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SP844000000006.docx
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SP844000000006
CSPCNANHAIPETROCHEMICALSPROJECT
POSITIVEMATERIALIDENTIFICATION
SP-8440-0000-0006
ProjectManagementContractor(PMC)
NO
DATE
REVISION
BY
CHK’S
APPR.
A
27/7/01
IssuedforComment
PL
DW
PW
00
23/11/01
IssuedforITB
PL
DW
PW
POSITIVEMATERIALIDENTIFICATION
TABLEOFCONTENTS
1.0SCOPE3
2.0PURPOSE4
3.0DEFINITIONS4
4.0RESPONSIBILITIES5
5.0PMIMETHOD6
6.0LOCATION,TIMINGANDEXTENTOFEXAMINATION7
7.0IDENTIFICATIONOFACCEPTABLEMATERIALS9
8.0REJECTEDMATERIALS10
9.0DOCUMENTATION11
TABLE1EXTENTOFPMIONBULKITEMS
TABLE2EXTENTOFPMIONTAGGEDITEMS
TABLE3EXTENTOFPMIONSHOPFABRICATEDPIPINGANDFIELDERECTEDPIPING
TABLE4ELEMENTSTOBEDETERMINEDDURINGPMIEXAMINATION.
TABLE5REQUIREMENTSFORSAMPLEPMI
1.0
SCOPE
1.1Thisspecificationdefinestheminimumrequirementsforpositivematerialidentification(PMI)fortheCSPCNanhaiproject.Itshallapplytoallpartsandphasesoftheproject.Itcoverstheextentofitemstobechecked,samplingrequirements,PMImethods,acceptancecriteria,markinganddocumentationrequirementsforPMI.
1.2PositiveMaterialIdentification(PMI)shallapplyto:
∙alloybulkmaterialsatthesourceofsupply.
∙alloytaggeditemsattheequipmentVendor’sfabricationfacilities.
∙fabricatedalloypipingatthepipingSub-Contractor’sfacilitiesandconstructionsite.
1.3PMIisaverificationofnominalalloycompositionandisindependentofanymaterialcertificationandmaterialcontrolmeasuresadopted.PMIshallisnotasubstituteformaterialcertificationandmaterialcontrol.
1.4UnlessotherwisespecifiedbyBSF,thefollowingitemsdonotrequirePMI:
∙Alloyinternalnon-pressureretainingcomponents(e.g.trays,baffles),exceptfortheInternalsofCompressorandSteamTurbineequipment(SeeTable2,Item5).
∙Alloyinstrumenttubingandfittings
∙Alloysteamtracingtubingandfittings
∙ASTMA193Gr.B7orB7M,ASTMA320Gr.L7orL7Mbolting(orequivalentnationalstandard)
∙Alloyequipment,pipingcomponentsandinstrumentsinutilitywaterservice,withtheexceptionthatheatexchangertubesincontactwithhydrocarbon,amineorcausticprocessstreamsshallbesubjecttoPMIinaccordancewithTable2
∙Alloyinstrumentsinstalledincarbonsteelpiping
∙Alloysteamtraps
∙Alloyrotatingequipmentinternals,andseal,lubeoil,coolingwaterandsteampiping
∙Alloyinternalvalvecomponents
∙Spiralwoundandmetaljacketedgaskets
∙Carbonsteelequipment,pipingcomponentsandinstruments
2.0PURPOSE
Thepurposeofthisspecificationistodefinethescope,methodandtimingofPMIexaminationtobeappliedtopipingandequipmentfabricatedfortheCSPCNanhaiProject.
3.0DEFINITIONS
CSPC
CNOOCandShellPetrochemicalCompanyLtd.
BSF
BechtelSEIandFosterWheeler,theProjectManagementContractor
BDEPSubcontractor
Engineeringanddesigncontractorengagedtogeneratedesigns,drawingsanddocumentstobeincludedintheprojectBasicDesignEngineeringPackage(BDEP).
EP/CContractor
Engineeringandconstructioncontractorengagedtocarry-outdetaileddesignandconstructionoftheplant.
Sub-Contractor
Sub-contractoremployedbyEP/CContractorresponsibleforalloypipingfabricationand/orerection.
Vendor
Supplierofequipmentfabricatedinalloymaterial
DefinitionPhase
ThephaseoftheprojectinwhichtheBDEPisprepared
ImplementationPhase
Thephaseoftheprojectinwhichdetaileddesignandconstructioniscarried-out.
PMI
Verificationofnominalalloycompositionbymeansofinstrumentation.
TaggedItem
Equipmentorspecialpipingitemallocatedauniquetagnumbere.g.pressurevessel,heatexchanger,pump,compressor,packagedunit,controlandreliefvalves,expansionjoint,andanyotheritemslistedinequipmentlist,specialpipingitemlistorinstrumentschedule
BulkItems
Materialspurchasedinbulkwhereindividualitemsarenotallocatedauniquetagnumber,e.g.plate,randomlengthpipe,valves,fittings,flanges,non-processtrapsandstrainers
Alloy
Lowalloysteelcontainingmorethan0.5%totalalloyingelements,intermediateandhighalloysteels,nickelbasedalloys,copperbasedalloys,othernon-ferrousmetals
Lot
Allunitsfromacommonheatofmaterialpresentedforinspectionagainstasinglepurchaseorderitem.Inthecaseofvalves,orsimilaritems,wherebodiesandbonnets/coversmaybefromdifferentheats,thelotshallconsistofallunitswiththesamecombinationofheatnumbersforpressurecontainingcomponents
Sample
OneormoreunitsselectedatrandomfromthelotthataretobePMIexaminedtodetermineacceptabilityofthelot
4.0RESPONSIBILITIES
4.1ControlandperformanceofPMI,asdefinedinthisspecification,istheresponsibilityoftheEP/CContractor.ResponsibilityforexecutionofthePMIexaminationmaybepassedontotheVendororSub-Contractoronwhomthepurchaseorderorsub-contractisplaced.
4.2TheVendororSub-Contractorshallco-ordinatePMIbyanyauthorisedthirdpartyengagedtoperformPMI;theEP/CContractorshallretainoverallresponsibilityforcontrolandperformanceandshallensurethatPMIisundertakenbytheapprovedmethodsandbyqualified/experiencedoperatorsinaccordancewiththisspecification.
4.3TheVendororSub-ContractorshallensurethatEP/CContractorandBSFhaveaccesstothePMIoperatorandinstrumentationwhenrequiredandshallmakeavailablePMIreports/documentationforreviewbyEP/CContractorand/orBSF.
4.4TheEP/CContractorshallensurethatthePMIrequirementsofthisspecificationareincorporatedintoapplicablematerialsub-orders,requisitionsand/orotherpurchaseorder/sub-contractdocumentationgeneratedbyVendorsandSub-Contractors.
4.5TheVendororSub-Contractorshallensurethatallalloymaterialsarequarantinedinamaterialreceptionareapendingverificationoftheidentification,markings,colourcoding,materialcertificationand,whereapplicable,precedingPMIreports.Fulltraceabilityshallbemaintainedonanyoff-cuts.AlloymaterialsinquarantineshallbeavailableforinspectionbyEP/CContractorandBSF.
4.6Alloymaterialsshallbesegregatedandstoredinseparatelocationstopreventmixingofdifferentalloyspecificationsoralloymaterialswithcarbonsteel.
4.7ColourcodingofalloyPipingMaterialsshallbeinaccordancewithProjectSpecificationSP-8230-0000-00XX(-ONHOLD)
5.0
PMIMETHOD
5.1Instrumentation
5.1.1AnalyserinstrumentsandmethodsusedforPMIexaminationshallbeapprovedbyEP/CContractor.Thefollowingtypesofinstrumentsareacceptable:
∙PortableX-rayfluorescentspectrometerswithdirectreadingofalloygradeorcompositionintheapplicablerange
∙Portablearc-emissionspectrometerswithdirectreadingofalloygradeorcompositionintheapplicablerange.
5.1.2Portablearc-emissionspectrometerswithoutputintheformofvisiblelightspectra(e.g.Metascop)areacceptable,subjecttoBSFapprovalandthefollowingrestrictions:
∙Limitedtofilletweldsandsmallborepiping(NPS3orsmaller)
∙Theoperatorisabletodemonstratesatisfactory,recent(withinthreemonths)experiencewiththeinstrument
∙Theoperatorundertakesaqualificationteston‘unknown’samplesrepresentingthematerialssubjecttoPMI(minimumoffour(4)differentalloysamples).ThetestshallbewitnessedbyEP/CContractorandcorrectidentificationofallsamplesisrequiredforoperatoracceptance.
5.1.3Othermethods,suchasspectrographicorwetchemicalanalysisofsampledrillingsshallnotbeusedunlessspecificallyapprovedbyEP/CContractorforaparticularapplication.MagneticandelectromagnetictestingarenotacceptableforPMI.
5.1.4OnlyqualifiedandexperiencedoperatorsshallperformPMI.OperatorsshallbetrainedintheuseofthePMIequipmentandshallbeexperiencedinitscommercialapplication.OperatorexperiencerecordsattestingtosuchqualificationsofassignedoperatorsshallbeavailabletoEP/CContractorandBSF.
5.1.5AllPMIinstrumentsshallhavebeenservicedwithinasixmonthperiodofthetimeofusetoverifytheperformanceofbatteries,radioactivesourcesetc.ThedateofthelastserviceshallbestatedonthePMIreportform.
5.1.6AllPMIinstrumentsshallbecalibratedinaccordancewiththemanufacturer’sinstructionsatthestartandfinishofeachshiftasaminimum.
5.1.7Certifiedsamples,withfulltraceability,ofknownalloysshallbeavailableforuseasarandomspotcheckoftheinstrument’scalibration.BSFreservestherighttohavespotchecksperformedusingthesesampleswheneverthereisdoubtastotheresultsofthePMIexamination.
5.1.8Surfacestobeexaminedshallbepreparedbylightgrindingorbyabrasivepaperandsolventcleanedtoremoveanysurfacefilms.Allmaterialsshallbemadegoodafterexamination,e.g.bydressingoutarcstrikes.Arcemissioninstrumentsshallnotbeusedwherearcstrikescannotbemadegoode.g.solidmetalgaskets.
5.2ElementstobeAnalysed
5.2.1Whereanalyserinstrumentsareusedthatprovideaquantitativemeasurementofelements,themajoralloyingelementsshowninTable4shallbeanalysed.Inanyevent,theextentofelementsanalysedshallbesufficienttoverifynominalcompositionofmaterialorweldmetal.
5.2.2ForalloymaterialsnotcoveredbyTable4,VendororContractorshallseekEP/CContractorapprovalforelementstobeanalysed.
6.0LOCATION,TIMINGANDEXTENTOFEXAMINATION
6.1BulkMaterials
6.1.1Forbulkpipingcomponents,PMIshallbeperformedatthesourceofsupplyormanufacture.IfVendorssub-contractthesupplyormanufactureofallorpartofthebulkpipingcomponentstoathirdpar
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