volume 233, issue 1-3, P261-272 2004
DOI: 10.1016/j.nucengdes.2004.08.013
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Abstract: In the high temperature engineering test reactor (HTTR), even at normal operation the service temperatures of class 1 metallic components reach temperatures above 900 • C when exposed to primary helium coolant of 950 • C. For these components, Hastelloy XR, which is the improved version of Hastelloy X, was developed and used for high temperature application.Some of the high temperature materials and their service temperatures, including Hastelloy XR, used for the class 1 and reactor internal metallic componen…

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