ML20054G449

Forwards Revised Responses to Questions CS 210.1 & CS 250.4 Per NRC 820602 Request & ES-LPD-82-007,CRBR Transition..., ES-LPD-82-008, Crbr Matls..., ES-LPD-82-009, Crbr Special..., & ES-LPD-82-011, Crbr Special..

ML20054G449
Person / Time
Site:	Clinch River
Issue date:	06/17/1982
From:	Longenecker J ENERGY, DEPT. OF
To:	Check P Office of Nuclear Reactor Regulation
Shared Package
ML20054G450	List: ML20054G449 ML20054G456 ML20054G465 ML20054G480 ML20054G488
References
HQ:5:82:049, HQ:5:82:49, NUDOCS 8206210563
Download: ML20054G449 (3)

Text

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Department of Energy Washington, D.C. 20545 Docket No. 50-537 HQ:S:82:049 JUN 17 1982 Mr. Paul S. Check, Director CRBR Program Office Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Dear Mr. Check:

RESPONSES TO REQUESTS FOR ADDITIONAL INFORMATION AND REVISIONS

Reference:

Letter,HQ:S:82:040, J. R. Longenecker to P. S. Check,

" Responses to Request for Additional Information,"

dated June 2, 1982 Enclosed are revised responses to Questions CS 210.1 and CS 250.4. These responses will also be incorporated in the PSAR Amendment 69, scheduled for submittal in July 1982.

In addition, th's letter provides supporting reports referred to in the enclosed revised responses and to NRC Questions CS 210.3 and 7 and CS 250.5, 7, and 8 from the referenced letter.

Enclosed are 70 copies of CRBRP Engineering Study Reports:

ES-LPD-82-007, "CRBRP Transition Joints" (Reference CS 210.3-1);

ES-LPD-82-008, "CRBRP Materials Data Base" (Reference QCS 250.9-1);

ES-LPD-82-009, "CRBRP Special Stress and Criteria Considerations" (Reference QCS 210.1-1); and ES-LPD-82-011, "CRBRP Special Materials Considerations" (Reference QCS 210.1-2).

incerely,

/{}Up J n R. Longen ker o

Acting Director, Office of the g (5p

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Clinch River Breeder Reactor q

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Plant Project Office of Nuclear Energy Enclosures cc: Service List, Standard Distribution, Licensing Distribution B206210563 820617 PDR ADOCK 05000537 A

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.tge 1 (82-0343) [8,22] #88 Ouestion N10.1 In piping systems at elevated temperatures, local deformation may occur at creas of geometric discontinuity, such as at fittings.

Provide methods and procedires for the following:

A.

Define elastic follow-up.

B.

Evaluate creep rupture and fatigue damage.

C.

Justify the use of simplified creep ratcheting bounding techniques used in compiter codes.

Resoonse

'Ihis question was answered orally at the May 6-7, 1982 High Tenperature Design Meeting.

For parts A and C, the information is documented in Reference QCS210.1-1.

For part B, the information is documented in Reference QCS210.1-2.

References QCS210.1-1 ES-LID-82-009, Engineering Study ReEort on CRBRP Special Stress and Criteria Considerations, June 1982.

QCS210.1-2 ES-LHM)ll, Engineering Study Report on CRBRP Special Materials Considerations, June 1982.

l QCS210.1-1 Amend. 69 July 1982

Paga - 3 [82-0343] #70 ouestion cR950.4 Provide the method for structural evaluation of weldments and associated materials for service at elevated temperature. % e following should be addressed:

.V 1) room temperature and elevated temperature material acceptance criteria;

11) creep rupture damage resulting from residual forming and welding stresses; i

lii) mass transfer effects; l

l iv) metallurgical notch effects; v) fracture toughness criteria; vi) thermal aging effects; and vii) irradiation effects.

Resoonse his question was answered orally at the May 6-7, 1982 High Temperature Design Meeting.

For parts 1, ii, and iv, the information is documented in Reference QCS210.1-2.

For parts lii, v, vi, and W.1, the information is documented in Reference QCS250.9-1.

s l

QCS250.4-1 Amend. 69 July 1982

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