Austenitic stainless steel particularly suitable as a structural core material or as a cladding material in nuclear reactors

摘要

The invention relates to austenitic stainless steels resistant to swelling under irradiation. These steels comprise at least one additional element chosen from tin, germanium and antimony in a total content ranging from 0.05% by weight to 1% by weight. The presence of one or more of the elements chosen from germanium, tin and antimony makes it possible to limit the swelling phenomenon. As a result, these steels can be used in nuclear reactors.