ML18142A464
| ML18142A464 | |
| Person / Time | |
|---|---|
| Issue date: | 05/21/2018 |
| From: | David Rudland NRC/NRR/DMLR/MPHB |
| To: | |
| Rezai A, NRR-DMLR 415-1328 | |
| References | |
| Download: ML18142A464 (10) | |
Text
NRCTopics StatusandUpdate Remarksby DavidL.Rudland SeniorTechnicalAdvisorforMaterials OfficeofNuclearReactorRegulations U.S.NuclearRegulatoryCommission Industry/NRCMaterialsPrograms TechnicalInformationExchange PublicMeeting May2123,2018 Rockville,MD
Topics
- AppendixH
- CMAC
- FAVOR
- xLPR
- MDEP/CNRACSWG
- CRDMthermalsleevewear
- KOBESteel 2
AppendixH Status:
- June1,2017-DuringpublicmeetingstakeholdersagreedwithNRC proposaltorevise10CFR50AppendixHandretainASTME18582, withconditions o
Thisoptionmaximizesburdenreductionwhilemaintainingcomparablelevel ofsafety
- NRCstaffcontinuestoworkondevelopingtheRegulatoryBasis, whichisscheduledforpublicationduringSeptember2018 o
Winter2017-NRCstaffreevaluatedthemosteffectiveandefficient approachtoconductthisrulemakingeffort 3
FAVOR Status:
- Currentcodeversion:v16.1
- Maintenanceanddistribution o Currentmaintenance:NRCandNUMARK(contractor) o Distribution:contactPatrick.Raynaud@nrc.gov o Futureplan:NRC/REStomaintainanddistributeFAVOR,with contractorsupport,asneeded Ongoingactivities:
- V&VAssessmentforFAVORv16.1
- NRRandRESFAVORuserstraining
- RESknowledgemanagementeffortsforpossibleinhouse developmentofFAVOR
- Applicationstoresolvesmallsurfaceflawissue 4
xLPR Status:
- Codedevelopment,Version2complete
- Documentation-17,000totalpages-finalNUREGunder development 2019
- Maintenanceandpublicdistribution o
NRCandEPRIfinalizinglegalframeworktoenablejointmaintenanceand distributionactivities Ongoingactivities:
- NRRreviewingkeytechnicalbasisdocumentstodeterminepossible acceptabilityofcodeforLBBregulatoryapplications
- RES/EPRIconductingsensitivitystudiesandindependentpipe systemanalyses 5
CarbonMacrosegregation Status:
- Currently,thereare 17U.S.plantsidentifiedashavingcomponents producedbyAREVACreusotForge(ACF).Notconfirmedthatanyofthese componentscontaincarbonmacrosegregation(CMAC).
- NRCstaffssafetyassessmentoftheCMACtopic,asitrelatestoplants operatingintheU.S.,issuedonFebruary22,2018[ML18017A441].
o ThesafetysignificanceofCMACisnegligibleforU.S.plants.
Ongoingactivities:
- NRCstaffcontinuemonitoringalldomesticandinternationalinformation associatedwiththeCMACtopic,asdiscussedinML18017A441.
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CodesandStandardsWorkingGroup Whatisit:
- WorkinggroupcurrentlyunderMultinationalDesignEvaluationProgramme (MDEP),beingconsideredforCommitteeonNuclearRegulatoryActivities(CNRA).
- PromotionofCodesandStandardsconcerningpressureboundarycomponents withafocusonharmonizationthroughdevelopmentandmutualexchangeof information.
- Leveraginginternationalcooperationincodesandstandardsdevelopment.
Ongoingactivities:
- IftransfertoCNRAisapproved,CSWGmayinvestigatetopicssuchas o CMAC o Additivemanufacturing o HDPE o Inserviceinspectioncodecomparison o Environmentallyassistedfatigue 7
CRDMThermalSleeveWear
- InformationfromASN
- Forinfoonlyandlookingforthoughts/OE fromIndustry 8
CRDMThermalSleeveWear 9
KOBESteel Issue:
- In2017,KobeSteelannouncedithasfalsifiedstrengthanddurability dataofaluminumandcopperproducts. Subsequentannouncements indicateddocumentationaffectedforsomesteelpowder,steelwire andsteelplates.Falsificationswerethoughttogoback10years.
- NRCgatheredinfoanddeterminedlowsafetysignificanceforU.S.
plants.
- AfterfurtherinvestigationbyJapanesegovernment:Falsifications occurredforfivedecadesandincluded685clients.
Ongoingactivities:
- NRCreinvestigatingimpactstooperatingfleet.
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