Evaluation of NDE techniques for type 439 stainless steel feedwater heater tubing
- Bayway Refining Co., Linden, NJ (United States)
- Powerfect, Inc., East Hanover, NJ (United States)
Ferritic stainless steel has been finding increased application in utility plant feedwater heaters due to good strength and corrosion resistance and absence of potential copper contamination of feedwater system. Ferritic stainless steel is highly magnetic and is generally not inspectable using conventional eddy current testing techniques. A variety of techniques have been developed for inspection of this tubing material used in typical heat exchanger applications. Through a project completely funded by the Empire State Electric Energy Research Corporation (ESEERCO), the data generated by four present state of the art NDE testing techniques was evaluated on a controlled mock-up of the heater tubing with service related defects. The primary objective was to determine the strengths and limitations of each method. The testing of two (2) in service feedwater heaters at the Consolidated Edison Company of New York, Inc. (Con Edison`s) Arthur Kill Generating Station also allowed further evaluations based on actual field conditions.
- OSTI ID:
- 207774
- Report Number(s):
- CONF-951010--; ISBN 0-7918-1488-2
- Country of Publication:
- United States
- Language:
- English
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