A CONTINUOUS CASTING PROCESS FOR AN AUSTENITIC STAINLESS STEEL BAND ON ONE OR BETWEEN TWO MOVABLE SIDES WHOSE SURFACES CONTAIN DEPRESSIONS, AND THE CASTING FACILITY TO CARRY OUT THE PROCESS

摘要

The invention relates to a continuous casting process of an austenitic stainless steel strip directly from liquid metal of composition, expressed in percentages by weight: C ~ 0.08%; If ~ 1%; Mn ~ 2%; P ~ 0.045%; S ~ 0.030%; Cr between 17.0 and 20.0%; Or between 8.0 and 10.5% on a casting machine on one or between two moving walls whose external surface is provided with dimples and in which the area surrounding the meniscus is inert with an inerting gas of controlled composition, characterized in that: - said liquid metal is imparted a relative Créqu / Niéqu greater than 1.55, with: Créqu =% Cr + 1.37 x% Mo + 1.5 x% Si + 2 × Nb% + 3 x% Ti and Niéqu =% Ni +% Mn + 0.31 x 22 x 14.2 x% C +% N +% Cu; - Using a or moving walls whose entire surface includes touching dimples having a diameter between 100 and 1500 .mu.m and a depth of between 20 and 150 .mu.m; - And using an inerting gas consisting at least partly of a gas soluble in steel. The invention also relates to a casting installation for implementing the method.