ML20055C392

Approves Util 900214 Request for Use of B&W Steam Generator Plugs W/Alloy 690 as Alternative to Alloy 600.Alternate Matl Is nickel-base Alloy (ASME Designation SB-166)

ML20055C392
Person / Time
Site:	Byron, Braidwood, 05000000
Issue date:	02/26/1990
From:	Shemanski P Office of Nuclear Reactor Regulation
To:	Kovach T COMMONWEALTH EDISON CO.
References
NUDOCS 9003080299
Download: ML20055C392 (4)

Text

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• February 26, 1990- 1 Docket Nos. 50-454, 50-455, 50-456 and 50-457 l Thomas J. Kovach Nuclear Licensing Manager j Commonwealth Edison Company-Suite 300 '

OPUS West III.

1400 OPUS Place Downers Grove, Illinois 60515  ;

SUBJECT:

REQUEST FOR PROPOSED ALTERNATIVE TO REQUIREMENTS OF ASME SECTION III.

FOR BYRON STATION UNITS 1 AND 2 AND BRAIDWOOD STATION UNITS 1 AND 2 ,

By letter dated February 14, 1990, Commonwealth Edison Company requested ,

approval for the use of B&W steam generator plugs manufactured with an i alternate material. The alternate material is a nickel base alloy, ASME  ;

designationSB-166(Alloy 690).

i The Materials and Chemical Engineering Branch, Division of Engineering Technology, has reviewed the request and supporting information and concludes that the use of Alloy 690 as a proposed alternative to the use_of Alloy 600,

in accordance with the requirements of the ASME Boiler and Pressure Vessel r Code, will provide an acceptable level of quality and safet and that its use .

may be authorized under the provisions of 10 CFR 50.55a(a)(y). 3 [

Sincerely, ,

/s/ '

l

@ C . fhd Paul C. Shemanski, Project Manager .

Project Directorate 111-2 .

Division of Reactor Projects - III, ,

IV, Y and Special Projects

Office of Nuclear Reactor Regulation I

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• • • • • l February 26, 1990  :

I Docket Nos. 50-454, 50-455, 50-456 and 50-457 ,

Thomas J. Kovach .

Nuclear Licensing Manager  !

Commonwealth Edison Company-Suite 300  :

OPUS West III r 1400 OPUS Place Downers Grove, Illinois 60515

Dear Mr. Kovach:

I

SUBJECT:

REQUEST FOR PROPOSED ALTERNATIVE TO REQUIREMENTS OF ASME SECTION III FOR BYRON STATION UNITS 1 AND 2 AND BRAIDWOOD STATION UNITS 1 AND 2  :

i By letter dated February 14, 1990, Commonwealth Edison company requested approval for the use of B&W steam generator plugs manufactured with an alternate material. The alternate material is a nickel base alloy, ASME  ;

designationSB-166(Alloy 690).

The Materials and Chemical Engineering Branch, Division of~ Engineering Technology, has reviewed the request and supporting information and concludes  ;

that the use of Alloy 690 as a proposed alternative to the use of Alloy 600,

, in accordance with the requirements of the ASME Boiler and Pressure Vessel '

l Code, will provide an acceptable level of quality and safet and that its use

! maybeauthorizedundertheprovisionsof10CFR50.55a(a)(y). 3 Sincerely, .

O c.r h Paul C. Shemanski, Project Manager Project Directorate 111-2 Division of Reactor Projects - !!!, ,

IV, Y and Special Projects  !

Office of Nuclear Reactor Regulation .!

I cc: See next page -i e

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Mr. Thomas J. Kovech Byron /Braidwood Power Station Comonwealth Edison Company Units 1 and 2 CC:

Mr. Jack Tain Dr. Bruce von Zellen Atomic Power Distribution Department of Biological Sciences 4 Westinghouse Electric Corporation Northern Illinois University Post Office Box 355 DeKalb, Illinois 61107 i Pittsburgh, Pennsylvania 15230 U. S. Nuclear Regulatory Commission Joseph Gallo, Esq. Byron / Resident Ins)ectors Office Hopkins and Sutter 4448 North German Church Road 888 16th Street, N.W. Byron, Illinois 61010 Suite 700 Washington, D.C. 20006 M,s. Lorraine Creek Rt. 1. Box 182 i Regional Administrator Manteno, Illinois 60950 1 U. S. NRC, Region III 799 Roosevelt Road, B1dg. f4 Mrs. Phillip B. Johnson  !

Glen Ellyn, Illinois 60137 1907 Stratford Lane Rockford, Illinois 61107 Ms. Bridget Little Rotem i Appleseed Coordinator Douglass Cassel Esq.

117 North Linden Street 109 H. Dearborn Street Essex, Illinois 60935 Suite 1300 '

i

. Mr. Edward R. Crass

,' Nuclear Safeguards and Licensing Ms. Pat Morrison Division 913 N Main Street #707 Sargent & Lundy Engineers Rockford, Illinois 61103-7058 55 East Monroe Street Chicago Illinois 60603 David C. Thomas Esq.

77 S. Wacker Drhie U. S. Nuclear Regulatory Comission Chicago, Illinois 60601 -

f Resident Inspectors Office RRfl Box 79 i Braceville, Illinois 60407 Mr. Thomas W. Ortciger, Director Illinois Emergency Serv ices and Disaster Agency 110 East Adams Street Springfield, Illinois 62706 i

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. Hr. Thomas J. Kovach Byron /Braidwood l Comonwealth Edison Company cc

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i Illinois Department of  ;

Nuclear Safety i Office of Nuclear Facility Safety i 1035 Outer Park Drive l Springfield, Illinois 62704 Michael Miller, Esq.

Sidley and Austin 'l  !

One First National Plaza i

)' Chicago, Illinois 60690 .,

i, George L. Edgar Newman & Holtzinger, P.C. l 1615 L Street, N.W.

Washington, D.C. 20036 q

Comonwealth Edison Company  :

Byron Station Manager i 4450 North German Church Road 1 l Byron, Illinois 61010 j i

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