ML19332A178
| ML19332A178 | |
| Person / Time | |
|---|---|
| Issue date: | 07/24/1980 |
| From: | Morton K NRC OFFICE OF ADMINISTRATION (ADM) |
| To: | Lofy R PARAMETER, INC. |
| Shared Package | |
| ML19332A175 | List: |
| References | |
| CON-FIN-B-1270, CON-NRC-05-80-251, CON-NRC-5-80-251 NUDOCS 8009110004 | |
| Download: ML19332A178 (5) | |
Text
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UMTED STATES NUCLEAR REGULATORY COMMISSION 3
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c WASHINGTON, D. C. 20555
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JUL 2 41980 Parameter, Inc.
ATTN: Mr. Richard Lofy, Pcesident 13545 Watertown Plank Road Elm Grove, WI 53122 Gentlemen:
SUBJECT:
CONTRACT NO. NRC-05-80-251, Task Order No. 3 Pursuant to the pertinent provisions of this contract, I hereby authorize the expenditure of $45,000.00 of the funds currently obligated under this contract to provide technical assistance and services in the independent metallurgical analysis of cracked stud bolts from Occone Unit 3.
If you believe that the total ceiling price is inadequate for the purposes of this task order, you must so notify my within ten (10) business days after its receipt.
Said notification shall contain your estimate of the required total ceiling cost. W1 thin ten (10) business days after receipt of such notification, the Contracting Officer shall either ratify the total ceiling cost or adopt the proposed revised estimate or some combination of the two and revise or confirm the task order accordingly.
This letter, executed on behalf of the Comission, is forwarded to you in quadruplicate.
Please acknowledge receipt on three (3) copies hereon and return them to me as soon as possible. The forth copy is for your retention.
Sincerely, i
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Research Co;ftorton, Chief' Kellogg V.
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ntracts Branch Division of Contracts Office of Administration
Enclosure:
Task Order No. 3 (4) h
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Parameter, Inc.
Agree Disagree Notification will be submitted by Date B Y.-
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TITLE:
7/3//90 DATE:
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PAPANETER INC.
C0hTPACTNO.NRC 05-80-251 TASK ORDER NO. 3 1.
Scope of Work _
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Provide NRC-IE assistance and services in the independent metallurgical analysis of cracked stud bolts as outlined in the statement of work below.
===2.
Background===
Duke Power Co. reported to NRC-IE on June 26, 1980 that during scheduled steam generator tubing maintenance at Oconee Unit 3, visual ~and ultrasonic examinations indicated cracking in 8 of the 64 stud bolts used to attach All the upper and lower manway access covers on the steam generators.
studs for the manway covers will be replaced in kind.
The-e studs are 2-inch diameter (8 thread / inch) studs reportedly mahu-factured by B&W from certified SA 340 grade L-43 low alloy steel supplied by Ryerson Steel Co. and were furnished with the steam generators.
Since the studs are a critical part of themactor coolant boundary integrity, it is essential that the nature and probable cause of the cracking be detennined so that appropriate steps can be taken to prevent recurrence of the problem.
3.
Statement of Work The actual laboratory analysis and evaluation shall consist of the following:
l Photographs will be taken of the two studs in the "as received" a.
condition to preserve physical features, especially crack areas, If some decontamination prior to specimen removal for other tests.
I to reduce radioactivity levels is necessary, this is to be done using appropriate methcds and solvents which will not result in resnoval of surface deposits, characterics or otherwise damage the cracked sections for failure analpsis studies.
I 1
Perfonn optical examination of the stud surfaces at suitable magni-b.
Surface conditions fications to detennine crack initiation sites.
and characteristics of defect sites (cracks, mechanical abuse, j
machining' deficiencies, etc.) are to photographically recorded.
i Perform optical metallography of selected specimen sections containing c.
cracks.
Provide evaluation of grain structure, caritide substrates, l
l nature of cracking and other microstructure anomalies observed.
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Based on optical metallography studies, conduct scanning electron metallography studies and EDA.X analysis or representa'tive crack Provide an evaluation of the following*
area s.
(1)
Charac.terization of fracture surfaces - initiation sites, fracture morphology with respect to fatigue, stress corrosion.
stress overload, etc.
(2T Analysis of identified deposits on thread and crack surfaces, and qualitative correlation with chemical analysis of base ma terial.,
Perform hardness survey of crack areas and correlate to mechanical e.
properti,es evaluation.
f.
Perform quantitative chemical analysis of both studs by the most appropriate method to suitably characterize the stud material and detennine confonnance to specification limits.
Perfonn two room itemperature tensile tests of each stud in accordance g.
with applicable ASTM Standards for materials testing and determine confonnance of stud mechanical properties (e,.g., yield strength, ultimate strength elongation R.A., etc.) to specification requirements.
4.
Report Requirements _
Upon receipt of the stud samples at the designated laboratory fo" analysis, the following reports are required:
Results of laboratory analysis and evaluation as the work progresses a.
shall be verbally comunicated to the IE Headquarters Project Officer on a weekly basis.
A preliminary report on the complete analysis and evaluation shall b.
be submitted within 20 days for the Project Officer's review.
Forty (copies) of a written final report shall be submitted to c.
the IE Project Officer within 45. days.
5.
Special Instructions The.NRC shall reimburse the contractor as invo' iced for allowable costs for analysis.' pment of the stud samples to the designated la incurred in shi All unconsumed portions of the studs are to be properly identified and l
_ retained by the designated laboratory, or the Contractor, for a p
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3 6.
Places of Performance _
a.
Parameter Inc.
b.
Battelle Columbus Laboratories University of Wisconsin - Milwaukee c.
7.
Cost Ceiling
$45,000 S
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