HTGR Knowledge Base

Conference Article: Service conditions and relevant properties of HTGR metallic materials

Bodmann, E.; Diehl, H.; Blume-Firla, I.; Demus, H. (Hochtemperatur-Reaktorbau GmbH, Mannheim (Germany, F.R.))

Abstract

Primary coolant temperatures in an HTGR lie between 250 and 1000 deg. C. Special requirements for HTGR components, and hence materials have arisen, because of the temperatures, the properties of the coolant and neutron irradiation in regions adjacent to the core, coupled with the nuclear quality and safety codes. Typical major metallic components are steam generators, helium/helium heat exchangers, steam reformers and control and shut down rods. The operational conditions for these components are given. The present status of the knowledge of the data for the most important material properties for component layout is described.

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key words: Gas Cooled Reactor, Nuclear Technology
Reference:
High temperature metallic materials for gas-cooled reactors. Proceedings of a specialists meeting held in Cracow, 20-23 June 1988
International Atomic Energy Agency, Vienna (Austria). International Working Group on Gas-Cooled Reactors
IWGGCR--18, pp:14-26