REPAIR OF HEAT EXCHANGERS DAMAGED BY STRESS CORROSION. SAVANNAH RIVER PLANT
Failure by chioride stress-corrosion cracking occurred in the austenitic stainless steel tubing of a number of shell-and-tube heat exchangers at the Savannah River Plant. Since ample replacement units were not readily available, it was necessary to make repairs. Development of repair methods was required due to the unique construction of the units, and due to the fact that only a short length of tubing between double tube sheets was affected. A number of potential repair methods were evaluated, and two were chosen for development. Due to the more rapid development of a rolled-in ferrule method and the urgent need for repair, only this method was applied to the two heat exchangers that were repaired. While zero leakage was not attained, a tolerable leakage rate of 0.1 gal/day was attained. Development of a welded-in, stub-end repair method was completed. (auth)
- Research Organization:
- Du Pont de Nemours (E.I.) & Co. Atomic Energy Div., Wilmington, Del.
- DOE Contract Number:
- AT(07-2)-1
- NSA Number:
- NSA-17-003422
- OSTI ID:
- 4754734
- Report Number(s):
- DP-694
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
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