ML19325F396

Suppls Response to NRC Bulletin 87-002 Re Fastener Testing. Data Summary Listing Results of Mechanical & Chemical Analysis of Bolts & Nuts from Byron Encl

ML19325F396
Person / Time
Site:	Byron, Quad Cities, 05000000
Issue date:	11/07/1989
From:	Morgan W COMMONWEALTH EDISON CO.
To:	Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-87-002, IEB-87-2, NUDOCS 8911210096
Download: ML19325F396 (5)

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), 72 Commonweshh Edison West Adams Street, Chicago, libriots l s

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November 7, 1989 i

l Mr. A. Bert Davis l Regional Administrator  !

U.S. Nuclear Regulatory Commission i Region III l 799 Roosevelt Road 1 Glen Ellyn, It. 60137 l i

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Subject:

Quad Cities Station Units 1 and 2 l Byron Station Units 1 and 2 '

Supplemental Response to NRC Bulletin 87-02 l NRC Docket Nos. 50-254/265 and 50-454/455 [

References (a): H.E. Morgan letter to A.B. Davis dated  :

January 12, 1988 (CECO response to NRC -

Bulletin 87-02).

(b): NRC Inspection Manual Temporary Instruction 4 2500/27, dated May 22, 1989. ]

Dear Mr.' Davis:

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Reference (a) transmitted the Commonwealth Edison Company's response i to NRC Bulletin 87-02. Subsequent to NRC Bulletin 87-02, Reference (b) was .

. issued which provided a sumary of information on the results of f astener testing conducted in late 1987 and early 1988. This Temporary Instruction i (TI) additionally required that NRC inspectors conduct inspections on certain paragraphs of the TI at specific plants. l i

The following provides information for Commonwealth Edison's Bjron .

and Quad Cities Stations that was identified by TI 2500/27 as information that l 1s outstanding and that would require NRC inspectors to obtain, t BYR0fl [

Byron Station is listed in Paragraph 2500/27-04 of Reference (b) as having tested 19 safety related (SR) and 21 non-safety related (NSR)  :

fasteners. The NRC requirement is a minimum of 20 SR and a total of 40.

Enclosure 2 of Reference (a) provided testing data on 21 SP. (identified as BY-A through BY-V2) and 20 NSR (identified as BY-1 through BY-20). The Data '

Summary sheets from Reference (a) are attached showing that the testing requirement has been met. .

8911210096 891107 PDR ADOCK 05000254 liOV 81989 Q PDC , g 0364T:3 7, , , I

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A.B. Davis November 7, 1989 j L ,

l QUAD _CUIES

Quad Cities Sample QN-4 Bolt, a NSR fastener was reported in Reference (a) to contain 0.11 percent carbon versus the specification of 0.37 to 0.49.

Subsequent to the submittal of Reference (a), a re-check of the carbon content ,

was made which resulted in an analysis of 0.43 percent carbon. A copy of the laboratory report is provided for information. The corrected carbon content is provided so that Quad Cities may be removed from the list of plants requiring inspection.

Please direct any questions you may have regarding this matter to this office.

Very truly yours, b

Ha ne E. Morgan Nuclear Licensing Administrator.

Im cc: U.S. Document Control Desk - NRR

NRC Resident Inspector - Quad Cities .

NRC Resident Inspector - Byron I 1

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DAYA SUtelARY  !

, tyron Station t

Mechanical analysis Charical Analysin .

Sample Hardness Proof- ,

ID At UTS1 0.2% Y8 Load C Mn P S Si Mo Cr '

(ksi) (1b P)

BY-1 Bolt J ct O NS NS NS 0.30 0.70 .013 .013 58 US NS SY-2 Nut 25.0 US NS NS 0.44 0.72 .014 .014 0.24 0.01 0.10 !

BY-3 Solt 30.7 NS N5 NS 0.35 NS .017 .019 NR N8 NS SY-4 Nut 24.0 NS NS NS 0.33 0.72 .013 .015 NS N8 NS SY-5 solt 35.0 N8 NS NS 0.40 NS .019 .023 58 US NS I

SY-6 Nut 26.3 NS NS NS 0.19 0.74 .013 .010 NS US NS SY-7 Solt 37.0 NS NS NS 0.39 58 .019 .021 N8 N8 NS '

BY-4 Nut 24.3 N8 NC NS 0.36 0.79 .017 .021 US 58 N8 i SY-9 telt 34.3 NS N8 NS 0.41 NS .019 .016 US N8 US {

BY-10 Nut 24.7 NS 58 NS 0.45 0.80 .018 .019 US N8 N8 3Y-11 Solt 34.3 NS NS NS 0.35 NS .004 .016 58 58 NS i

! SY-12 Nut 28.7 NE N8 NS 0.15 0.46 .059 .036 N8 N8 N8 SY-13 Solt 35.3 58 N8 NS 0.39 NS .009 .017 NS NS 58

' SY-14 But 31.7 58 58 NS 0.23 0.84 .014 .009 58 N8 NS ty-15 Nut 24.7 NS N8 NS 0.39 NS .014 .024 N8 N8 NS SY-16 But 30.7 NS NS 58 0.46 NS .014 .027 US NS NS ,

SY-17 Stud 23.7 NS N8 NS 0.40 0.43 .020 .020 0.25 0.13 1.02 ,

SY-it Nut 24.7 WS NS NS 0.12 0.27 .013 .016 0.39 58 11.50 37-19 Solt 30,7 US N8 58 0.45 0.06 .011 .013 0.28 0.14 0.95 BY-20 Stud 30.7 N8 NS 58 0.40 0.00 .012 .014 0.28 0.13 1.00 ,

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Note: UTS-Ultimate Tensile Strength Y8-Yleld Strength: Proofload-Length Noasurement Method (ASTM P606 and SAS J429h): C-Carbon Mn-Kansanese n P-Phosphorus t S. Sulf urt Si-Silicon No-Molybdenum; Cr-Chromium.

An asterisk denotes properties found out of specification. [

1 = Por wedge tension tests, tensile strength is given in pounds of force, f or machined tensile specimens, tensile stronSth is given in pounds per square inch.

NS = Not Specified.

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DAYA SUDNEARY tyron Station Nechanical Analysis Chemical Analysis Sample Hardness Proof-ID Rc VT81 0.2% YS Load C Mn P S Si No Cr (kal) (1b F)

SY-A Bolt NS 144,995 134,000 WS 0.40 0.74 .014 .011 0.28 0.15 0.96 BY-B Solt 27.3 WS NS NS 0.42 0.87 .011 .023 0.23 0.15 0.93 BY-C Nut ~26.7 NS NS NS 0.42 0.07 .009 .026 0.24 0.13 0.94 BY-D Bolt NS 136,340 120.050 NS 0.39 0.84 .011 .023 0.23 0.13 0.95 BY-8 Solt NS 152,570 134,725 W8 0.44 0.90 .013 .015 0.24 0.16 0.86 BY-F Wut 30.0 US N8 WS 0.45 NS .013 .020 58 58 WS BY-C Nut 25.0 NS 58 NS 0.40 0.87 .010 .025 0.32 0.17 1.00 SY-H Nut ,

30.3 NS WS NS 0.40 NS .014 .028 N8 N8 NS SY-J Nut 31.7 NS N8 US 0.44 US .011 .028 N8 NS NS SY-K Solt NS 149.320 136,690 NS 0.43 0.05 .018 .031 0.26 0.13 0.90 SY L Stud NS 147,955 132,720 NS 0.41 0.85 .012 .022 0.24 0.17 1.00 SY-N Nut 28.7 WS 58 58 0.43 NS .018 .014 NS US NS SY-N 8tud NS 130,650 125,570 US 0.41 0.95 .019 .017 0.26 0.13 1.00 BY-P Nut 24.7 NS 38 58 0.43 58 .019 .014 NS NS NS MS 149,320 137,500 N8 0.40 0.98 .009 .010 0.20 0.17 0.98 BY-Q 8tud SY-R Nut 24.0 WS N8 NS 0.12 0.28 .030 .010 0.39 NS 11.76 SY-S Stud NS 163,255 144,700 N8 0.45 1.04 .009 .023 0.32 0.14 1.04 BY-T Nut 29.7 58 NS 58 0.48 58 .004 .028 N8 N8 NS BT-U Stud NS 141,605 132,330 58 0.40 0.94 .000 .025 0.29 0.14 1.02 BY-V1 Nut 24.0 NS NS US 0.46 NS .018 .032 NS 38 NS SY-V2 Nut 25.7 N8 NS 58 0.47 NS .015 .028 NS NE NS Note: UTS-Ultimate Tensile Strength; YS Yleid Strength: Proofload-Length Nessurement Method (ASTN P606 and SAS J429h) C-Carbont Mn-Nanganese s P. Phosphorus ; 8-Sulfur; Si-Silicon l No-Molybdenumt Cr-Chroalum.

1 An asterisk denotes properties found out of specification.

1 = For wedse tension tests, tensile strength is given in pounds of force, for machined tensile l specimens, tensile strength is given in pounds per square inch.

NS = Not Specified.

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s Metallurgical Engineers 7sao ont ge acao e sko

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Maywood, IL 60153 '

R 78317-1 cate 1/13/88 Your Order No.: 318607 I Auention: Mr. John S. Caturano l

SUBJECT:

Carbon Re-check Analysis of Bolt QN-4F from Quad l

Cities Station l

TEST RESULTS:

Carbon Analysis:

A group of nuts and bolts were submitted to our laboratory for various metallurgical tests as required by NRC Compliance l Bulletin No. 8702. We were requested to re-check the carbon content on a bolt identified as QN-4F. It was determined that the original analysis was performed on drillings obtained from the head. A retest was performed on these ' drillings and another group of drillings was obtained from the threaded area. Two (2) analyses were performed on drillings from the thread.

The results of this testing is shown below.

Sample Location  % Carbon I QN-4F Thread .43 QN-4F Thread .43 QN-4F Head .44 Based upon this information, it appears that the carbon content l of bolt QN-4F is approximately 0.43%. '

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1 TAUSSG ASSOCIATES,INC.

By O_t @

Mark A. Hineina'n MAH/nb Sr. Metallurgical Engineer l

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