Process for manufacturing a ferritic stainless steel strip...

Details Process for manufacturing a ferritic stainless steel strip... Process for manufacturing a ferritic stainless steel strip...

C - Chemistry, Metallurgy

21

D

13/12, 252/37, 1

C21D 8/02 (2006.01) B01J 35/00 (2006.01) C22C 38/18 (2006.01) H01C 7/00 (2006.01)

Patent

CA 2230016

Process for manufacturing a ferritic stainless steel strip with a high aluminum content that can be used, among other things, as a support for catalytic converters on automobiles; characteristically, a sheet of ferritic stainless steel (of the following composition: 0.005% < carbon < 0.60% 10% < chrome < 23% 0.% < aluminum < 3% 0.003% < nitrogen < 0.030% 0.1% < manganese < 2% 0.1% < silicon < 2% rare earth elements in a proportion of between 0.03% and 0.15%) is sandwiched between two sheets of aluminum to obtain a laminate.

Procédé de fabrication d'un feuillard en acier inoxydable ferritique à haute teneur en aluminium utilisable notamment pour un support de catalyseur d'échappement de véhicule automobile, caractérisé en ce qu'une tôle en acier inoxydable ferritique de composition suivante: 0,005% < carbone < 0,060% 10% < chrome < 23% 0,1% < aluminium < 3% 0,003% < azote < 0,030% 0,1% < manganèse < 2% 0,1% < silicium < 2% éléments de terres rares dans une proportion comprise entre 0,03% et 0,15%, est soumise à: - un plaquage entre deux feuilles d'aluminium pour l'obtention d'un feuilleté.

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