ML20154E887
| ML20154E887 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/12/1988 |
| From: | Tiernan J BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8805230020 | |
| Download: ML20154E887 (4) | |
Text
..
o s
B AL.TIMORE OAS AND ELECTRIC CH ARLES CENTER
- R O. BOX 1475 ' BALTIMORE. MARYLAND 21203 -
JostPN A.TesmNAN vv.: e.e.iem NvC4LAa Chgnev May 12,1988 1
1 U. S. Nuclear Regulatory Commission W:sshington, DC 20555 ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & $0-318 Fastener Testina Gentlemen:
On November 5.1987, our Project Manager Scott McNeil, selected ten bolts and two nuts from our warehouse with the intention of testing them to determine their physical properties. We selected an equal number of fasteners from the same bins and tested them at our material testing facility.
At Mr. McNeil's request, we have attached a table summarizing the results of our testing. Please send us the results of your testing in a format similar to the attached table.
We found three minor discrepancies with the specification requirements, liga Diacrepancy 72-175(1) liardness was 0.3 IIRC (or 1.2%) below the minimum hardness of 25 IIRC.
72-175(2) liardness was 0,4 IIRC (or 1.4%) below the minimum hardness of 25 llRC.
72 229(2) liardness was 1.5 llRC (or 4.4%) above the maximum hardness of 34 IIRC.
These hardness variations are minor and, based on past experience, would not adversely affect the strength or ductility of the material.
gl kN $
l 8805230020 880512 PDR ADOCK 05000317 o
O O
Document Control Desk hiay 12,1988 Page 2 Mr. hicNeil also requested a list of vendors that BGAE purchases fasteners from, or have purchased fasteners from in the past. We have attached such a list. It is not intended to be all-inclusive. but it does represent our principal sendors.
Should you hase any additional questions regarding fasteners used at Calvert Cliffs, please do not hesitate to contact us.
Very truly yours, f
h&
JAT/ WPM /dtm Attachme:it ec:
D. A. Brune Esquire J. E.
Silberg, Esauire R. A.Capra, NRC S. A. McNeil, N RC W. T. Russell, NRC D. C. Trimble, NRC e
a i
l
ELEMENTAL WEIGIIT PERCENT IIARDNESs PART ID MARKINGS HIZ_E C
E!n R
S Sl Cr lio
_UIRC)_.
72-155(1)
KS Grade 5 5/8" x 1" 0.375 0.973 0.025 0.025 0.222 0.089 0.02 30.1 72-155(2)
FM Grade 5 5/8" x 1" 0.324 0.911 0.012 0.017 0.230 0.072 0.02 30.2 72-165 FM Grade 5 9/16" x 3" 0.303 0.876 0.013 0.017 0.252 0.106 0.01 26.1 72-175(1)
Grade 5 3/8" x 3" 0.384 0.824 0.015 0.018 0.242 0.066 0.01 24.7 72-175(2)
Grade 5 3/8" x 3" 0.451 0.830 0.015 0.020 0.259 0.063 0.01 24.6 72-218(1)
KS Grade 5 5/16" x 1 0.464 0.801 0.023 0.024 0.237 C.084 0.02 27.3 72-218(2)
KS Grade 5 5/16" x 1 0.401 0.832 0.023 0.022 0.236 0.084 0.02 26.2 72-226 J Grade 5 3/8" x 1" 0.399 0.882 0.016 0.015 0.035 0.269 0.00 25.7 72-229(1)
KS Grade 5 1/2" x 3" 0.357 0.906 0.014 0.016 0.240 0.079 0.01 33.7 72-229(2)
KS Grade 5 1/2" x 3" 0.358 0.868 0.014 0.017 0.249 0.080 0.01 35.5 445767(1)
(-)21I AME Nut 1 1/8" 0.448 0.839 0.026 0.017 0.237 0.130 3.01 25.4 44S767(2)
(-)211 AME Nut 1 1/8" 0.399 0.925 0.026 0.023 0.239 0.153 0.02 26.0 Table No. 1:
Chemistry and Ilardness Results
s Prlacipal Vendors
(
of BGAE Fasteners j
i I
1.
AAO Engineering Company 4640 East LaPalma Avenue Anaheim, CA 92806 f
Tet (400) 242.6587 I
2.
Leonard Jed Company 1301 Covington Street l
Baltimore, MD 21230 i
Tel:
(301) 685-1482
[
3.
Kenneth G. Lilly Fasteners P. O. Box 6005 I
Newark, DE 19711 i
Tet (302) 366-7640 l
4.
Standard Nut & Bolt I
Abbott & llatch Streets Cumberland, RI 02864 i
Tet (401) 722-6700
[
t 5.
Sta-Put Fastener Mannfacturing Company i
3900 Vero Road Baltimore, MD 21227 i
Tet (301) 247-5500
(
6.
Vincent Brass and Aluminum Charlotte, NC 28230 l
Tet (800) 438 6914 7.
Mil-Spec Fasteners l
Route 30 Box 59A llampstead, MD 21074 Tet (301) 239 7761 8.
A A A Bolt & Screw 4
1110 Batavia Farm Road I
Baltimore, MD 21237 l
Tet (301) 687-8831 I
9.
C-S Metal Services, Inc, j
l 7325 Washington Boulevard I
Baltimore, MD 21227 l
Tet (301) 7 % 5661 l
i