Silicon modified low chromium ferritic alloy for high...

Details Silicon modified low chromium ferritic alloy for high... Silicon modified low chromium ferritic alloy for high...

C - Chemistry, Metallurgy

22

C

75/127

C22C 38/34 (2006.01)

Patent

CA 1322677

ABSTRACT OF THE DISCLOSURE A ferritic alloy steel having good creep strength and cyclic oxidation resistance at elevated temperature up to 982°C (1800°F) with an optional final anneal at 1010-1150°C (1850°-2100°F) consisting essentially of from about 0.01% to about 0.30% carbon, about 2% maximum manganese, greater than 2.35% to about 4% silicon, about 3% to about 7% chromium, about 1% maximum nickel, about 0.15% maximum nitrogen, less than 0.3% aluminum, about 2% maximum molybdenum, at least one element selected from the group of niobium, titanium, tantalum, vanadium and zirconium in an amount up to 1.0% and the balance essentially iron.

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