Ferritic chromium steel

Details Ferritic chromium steel Ferritic chromium steel

C - Chemistry, Metallurgy

22

C

C22C 38/28 (2006.01) C22C 38/02 (2006.01) C22C 38/22 (2006.01) C22C 38/26 (2006.01) C22C 38/50 (2006.01)

Patent

CA 2659596

The present disclosure relates to a ferritic chromium stainless steel with the following composition in percent by weight: C max 0,1, Si 0,1 - 1, Mn max 0,6, Cr 20 - 25, Ni max 2, Mo 0,5 - 2, Nb 0,3 - 1,5, Ti max 0,5, Zr max 0,5, REM max 0,3, Al max 0,1, N max 0,07 balance Fe and normally occurring impurities, and wherein the content of Zr+Ti is at least 0,2 %. The ferritic chromium stainless steel is suitable for use in fuel cells, especially Solid Oxide Fuel Cells.

La présente invention porte sur un acier inoxydable au chrome ferritique qui a la composition suivante en pourcentage de poids : C max 0,1, Si 0,1-1, Mn max 0,6, Cr 20-25, Ni max 2, Mo 0,5-2, Nb 0,3-0,5, Ti max 0,5, Zr max 0,5, REM max 0,3, Al max 0,1, N max 0,07 complément Fe et les impuretés se présentant normalement, et dans lequel la teneur de Zr + Ti est d'au moins 0,2 %. L'acier inoxydable au chrome ferritique est approprié à l'usage dans des piles à combustible, en particulier des piles à combustible à oxyde solide.

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