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The results reported in this document were obtained from quantitative comparisons made between national and or international standards and the specifications in the RCC-MR design code covering ferritic and austenitic tubing for liquid metal fast breeder reactors (LMFBR) heat exchangers. The RCC-MR specifications require very close control of the main alloying elements in both the ferritic and austenitic grades of steel. This results in more consistent properties, though this benefit cannot be quantified. Usually the RCC-MR specifications are more stringent than the national or international standards in the areas of formability, dimensional tolerances and surface finish. A similar situation exists with respect to the nondestructive examination (NDE) of ferritic tubing but the RCC-MR specification for austenitic tubing could be improved by the introduction of eddy current testing. Consideration should be given to the inclusion, in a harmonized European tube standard, of requirements for severe service conditions based on LMFBR and other applications.

Additional information

Authors: BARR D G, NNC, Warrington, Cheshire (GB)
Bibliographic Reference: EUR 16558 EN (1996) 111pp., FS, ECU 13.50
Availability: Available from the (2)
ISBN: ISBN 92-827-5602-5
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