ML20106A990
| ML20106A990 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 09/24/1992 |
| From: | William Cahill, Walker R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-88-005, IEB-88-5, TXX-92450, NUDOCS 9209300197 | |
| Download: ML20106A990 (4) | |
Text
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- 1XX-92450 file #
10119 7
Ref.
- llRCB 88-05: Supp2 illnFCTRIC September 24, 1992 w m.m 3. ram, J r.
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Ibicl ear Pegul a tory Commiss ion Attn:
Dorument Control Desk Washington, DC 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC ST ATION (CPSES) - UlllT 2 DOCKET NO. 50-446 NRC BULLETlH 88-05 AND SUPPLEMENTS 1 AND 2:
NONCONf0RMlHG MATERIALS SUPPElED BY PIPING SUPPLIES, lHC AT FOLSOM, NEW JERSEY AND WEST JLPSEY MANUFAClORING CO. AT WitLIAM510WN, NEW JERSEY REF:
TU Electric letter f rom William J. Cahill, Jr. to U
- 5. NRC dated March 31, 1989 logged TXX-89163 Gentiemen:
The referenced letter stated that WJM/ PSI /CLM flanges installed in Unit 2 safety related systems would be located, ident ified, and tested prior to N 5 Certification of the Unit 2 piping systems.
Additional information based on the results of these actions would be provided to the NP" before Unit 2 fuel load, lhis letter provides that additional information.
A review of piping records determined that 83 potentially deficient flanges had been installed in Unit 2 safety-related systems, Unsatisfactory inspection reports requiring hardness testing were generated for those 83 flanges.
After the hardness testing was completed, corrective action documents (TVE forms) were generated for the flanges that had hariness readings outside the allowable range Each of the TUE forms were dispositioned "use-as-in" after evaluation by Engineering.
Of the thirty 4 two flanges with hardness readings-outside the allowable range, twenty-two had readings that were too low.
These were from six different heats, threr af which had previously been laboratory tested to confirm chemical composition.
TU Electric has now tested the three remaining heats onsite using an Moriba Model #EMIA-520 Carbon / Sulfur Analyzer and a Texas Nuclear Metallurgist Model #XR Alloy Analyzer.
These tests confirmed.that the three remaining heats have chemical composition conforming to the SA-105 material specification defined by A5ML.
lha test results are provided in an attached table along with the results of previous laboratory testing of the other t hrea heats.
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9209300197 920924 PDR ADOCK 0500 6
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.TXX-92450 Page 2 of 2 t-i TU Electric has reviewed its records / documentation to identify WJM/ PSI /CLM-material installed in ASME Boiler and Pressure Vessel Code, Section 111,
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Division 1. Code Class 1 piping systems.
The review revealed that no WJM/PS!/CLM material was installed in any ASME Code Class 1 piping systems for CPSES Unit 2.
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Documentation for these actions is available at the site for NRC review.
Sincerely,
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.,p.1 i William.l.
Cchill, Jr.
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7 Rooer/d. Walker Maaager of Regulatory Affairs for NEO JTC/tg Attachment t -
Mr. J. L. Milhoan, Region IV Mr. B. E.
- iian, NRR Hr G. Bynog. Texas Dept. of Licensing and Regulation, Boiler Div Resident inspectors, CPSES (2) i l
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Attachment to-TXX 92450 Page 1 of 2:
l l
CHEMICAL COMPOSITION i
C%
Mn%
S%
P%
Si%
ASME SA-105 Specification 0.35 0.60-1.05 0.050 0.040 0.35 g.
t-max max max max l
t Heat "DD" CMTR 0.25 0.76 0.022 0.022 0.25 CPSES Testing 0.30488 1.24*
0.03388 Heat "J690" CliTP 0.28 0.69 0.019 0.008 0.24 CPSES Testing 0.31434 -
1.22*
0.02235 L
Heat "T1404G" CMTR 0.340 0.770 0.026 0.028 0.210 CPSES Testing 0.25715 0.87 0.01576 U
Heat "86861"
-CMTR 0.31 0.89 0,016-0.010 0.22 Lab Testing 0.31 0.82 0.020 0.013- 0.200 For each reduction of 0.01% below the specified carbon ~ maximum (0.35%),-
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an increase of 0.06% manganese above the specified maximum (1.05%) will b_e permitted up to a maximum of 1.35%.
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Attachment to TXX 92450.
Page 2 of 2 CHEMICAL _00HPOSIT10!i C%
Hn%
5%
P%
Si%
Heat *M551701*
CitTR 0.22 0.71
-0.007 0,013 0,21 Lab Testing 0.22 0.69 0.014 0.015 0.20 A'.HE SA-350LF 2 0.30 1.35 0.040 0.035 0.15--
Specification max max max max-
-0. 30 -
Heat " f33 281 "
CMTR 0.18 0.96 0.025 0.009 0-20 Lab Testing 0.180 0.900 0.027 0.013 0.220 i
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