Iron-nickel-chromium-silicon alloy

Details Iron-nickel-chromium-silicon alloy Iron-nickel-chromium-silicon alloy

C - Chemistry, Metallurgy

22

C

C22C 19/05 (2006.01) C22C 38/08 (2006.01)

Patent

CA 2690637

The invention relates to an iron-nickel-chromium-silicon alloy comprising (in wt.-%) 19 to 34% or 42 to 87% nickel, 12 to 26% chromium, 0.75 to 2.5% silicon, and additives of 0.05% to 1% Al, 0.01 to 1% Mn, 0.01 to 0.26% lanthanum, 0.0005 to 0.05% magnesium, 0.04 to 0.14% carbon, 0.02 to 0.14% nitrogen, and further comprising 0.0005 to 0.07% Ca, 0.002 to 0.020% P, a maximum of 0.01% sulfur, a maximum of 0.005% B, the remainder comprising iron and the usual process--related impurities

L'invention concerne un alliage fer-nickel-chrome-silicium comprenant (en % en poids) 19 à 34 % ou 42 à 87 % de nickel, 12 à 26 % de chrome, 0,75 à 2,5 % de silicium, ainsi que des additions de 0,05 à 1 % de AI, 0,01 à 1 % de Mn, 0,01 à 0,26 % de lanthane, 0,0005 à 0,05 % de magnésium, 0,04 à 0,14 % de carbone et 0,02 à 0,14 % d'azote. L'alliage selon l'invention contient en outre 0,0005 à 0,07 % de Ca, 0,002 à 0,020 % de P, 0,01 % au max. de soufre et 0,005 % au max. de B, le reste étant constitué de fer et d'impuretés habituelles dues au procédé.

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