SEDL / STP / STP679-EB / STP38356S

Development of Austenitic Stainless Steels with Controlled Residual Nitrogen Content; Application to Nuclear Energy

Rabbe, P
Materials engineers, Creusot-Loire, Centre de Recherches d'Unieux, Firminy,

Heritier, J
Materials engineers, Creusot-Loire, Centre de Recherches d'Unieux, Firminy,

Pages: 18    Published: Jan 1979

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Abstract

We have developed AISI 304 and 316 grade steels which exhibit, in addition to their good mechanical properties, intergranular corrosion resistance of the 304L and 316L grades. This development of what we shall call “optimized” steels has been made possible essentially by a detailed knowledge of the respective influences of carbon and nitrogen on the mechanical properties and intergranular corrosion resistance. The method by which such optimized steels are specified, as well as the comparison of their mechanical properties with the ASME Code data, is described. It is obvious that such grades are particularly useful for nuclear applications.