ML19318A681
| ML19318A681 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/20/1980 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-79-03A, IEB-79-3A, NUDOCS 8006240011 | |
| Download: ML19318A681 (1) | |
Text
a Tn BALTIMORE GAS AND ELECTRIC COMPANY P. O. BOX 1475 BA LTI M O R E, M ARYLAN D 21203
!!ay 20,1980 ARTHun E. LUNDVALL,Jn.
v.cz Ppr uocut su P FLY Mr. Boyce H. Grier, Director Region I, Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19h06
Subject:
Calvert Cliffs Nuclear Power Plant Units Nos. 1 & 2, Dockets Nos. 50-317 & 50-318 IE Bulletin 79-03A
Dear !!r. Grier:
IE Eulletin No.79-03A concerns longitudinal veld defects in ASME SA-312 Type 304 Stainless Stee'. Pipe. This bulletin directed us to determine whether any fusion velled pipe of this materini was in use or planned for use in safety-relate 1 systems subject to design stresses greater than 85 percent of the Code allowable stresses.
Stress eniculations were performed on all pieces of SA-312 Type 30h Stainless Steel Pipe.
"ne results indicated that there were no pieces loaded to any value g cater than 77.5 percent code allowable stress. A typical value was 30 percent.
Should you have any questions regarding this reply, we vill be p'ensed to discuss them with you.
Very truly yours,,7 f.)
/./
f*
/&td./L.
cc:
J. A. Biddison, Esquire G. F. Trowbridge, Esquire Mr. E. L. Conner, Jr.
Mr. J. W. Brothers - Bechtel Division of Reactor Construction Inspet W a Office of Inspection and Fmforcement Washington, D. C.
20555 s0082400ll'9