Austenitic nickel-chromium-iron alloy

Details Austenitic nickel-chromium-iron alloy Austenitic nickel-chromium-iron alloy

C - Chemistry, Metallurgy

22

C

C22C 19/05 (2006.01)

Patent

CA 2065464

-14- The invention relates to an austenitic-chromium-iron alloy and its use as a material for articles with high resistance to isothermal and cyclic high temperature oxidation, high heat- resistance and high creep rupture strength at temperatures above 1100 to 1200°C. The characterizing feature of the invention is that the austenitic nickel-chromium-iron alloy consists (in % by weight) of: 0.12 to 0.30 % carbon 23 to 30 % chromium 8 to 11 % iron 1.8 to 2.4 % aluminium 0.01 to 0.15 % yttrium 0.01 to 1.0 % titanium 0.01 to 1.0 % niobium 0.01 to 0.20 % zirconium 0.001 to 0.015 % magnesium 0.001 to 0.010 % - calcium max 0.030 % nitrogen max 0.50 % silicon max 0.25 % manganese max 0.020 % phosphorus max 0.010 % sulphur residue nickel, including unavoidable impurities caused by melting.

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