ML19290C908
| ML19290C908 | |
| Person / Time | |
|---|---|
| Issue date: | 01/24/1980 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Anderson T WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| References | |
| NUDOCS 8002150039 | |
| Download: ML19290C908 (3) | |
Text
JEdh tkR MICO f(s
[0, UNITED STATES
-f ) ') e q h NUCLEAR REGULATORY COMMISSION j p WASHING TON, D. C. 20555
- N, l, Y
' : '. ' i 15 2
.Mr. Thomas M. Anderson, Manager
' Nuclear Safety Depa.. ment Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230
Dear Mr. Anderson:
SUBJECT:
REVIEW 0F WCAP-9179 Additional information is needed to complete our review of Westinghouse Electric Corporation topical report WCAP-9179 entitled " Properties of Fuel and Core Component Materials." The additional information recuested is enclosed.
This additional information is needed by March 6,1953 to meet our review schedule.
If you cannot meet this date, please infom us within ten days after receipt of this letter of the date you plan to submit your response.
Sincerely, r
(dt Jok'F.Stolz, Chief IJfhtWaterReactorsBanchNo.1 Division of Project Management
Enclosure:
Request for Additional Information cc:
Mr. D. Rawlins Westinghouse Electric Cor;: oration P. O. Box 355 Pittsburgh, Pennsylvania 15230 8002150
r ENCLOSURE QUESTIONS ON WCAD-9179 1.
Revision 1 to WCAP-9179 provides several constants and correlations for material properties that are not succorted by references. We have listed below those material properties fcr which Westinghouse has omitted references. Please provide the references.
Following our approval of WCAP-9179, these references should apoear in the approved version of WCAP-9179.
Material Material Procerty uranium dioxide chemical compatihility with Zircaloy-4 Zircaloy-4 thermal expansion (for cladding) yield strengths 304 stainless steel themal expansion chemical composition thermal conductivity Young's modulus stress-strain curves Inconel 718 melting ooint chemical composition antimony-beryllium thermar exoansion chemical corroosition themal conductivity compressive modulus comoressive strength borosilicate glass thermal exnansion chemical comoosition chemical commtibility with water softening point creeo boron carbide themal exoansion 2.
Cirst-round question number 6 (Ref.1) requested that Westinghouse orovide for review the ultimate tensile strength of Zircaloy-I com-ponents, provided this property was used in licensing apolications.
The Westinghouse resoonse (Ref. 2) stated that Zircaloy-4 ultimate tensile strengths were not used in the design analyses of present fuel assembly designs. Recently in a Westinghouse presentation to the staff and in subsequent applicant submittals (Ref. 3 and 4) the ultimate tensile strength of Zircaloy was emoloyed in licensing cal-culations. Therefore, please submit for review this croperty and the required references.
t
- References 1.
Letter from John F. Stolz, NRC, to Thomas M. Anderson, Westinghouse,
Subject:
Review of WCAP-9179, dated September 7,1978.
2.
Letter from Thomas M. Anderson, Westinghouse, to John F. Stolz, NRC,
Subject:
Response to Questions on Properties of Fuel and Core Component Materials, NS-TMA-1985, dated November 10, 1978.
3.
Letter from L. M. Mills, Tennessee Valley Aut;iority, to L. S. Rubenstein, NRC, Dockets 50-372 and 50-328, dated November 27, 1979.
4.
Letter from William 0. Parker, Duke Power Company, to Harold R. Denton, NRC, Dockets 50-369 and 50-370, dated December 14, 1979.