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AssigneeJfe Steel Corporation
InventorsKunio Fukuda, Susumu Satoh, Kazuhide Ishii, Takeshi Fujihira, Akira Kawaharada
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The present invention provides an Fe—Cr—Al-based alloy for catalyst carriers and a foil thereof having a thickness of 40 μm or less, the alloy and the foil improved in the oxidation resistance at high temperatures and having excellent deformation resistance. Specifically, the present invention provides an Fe—Cr—Al-based alloy foil and a manufacturing method thereof, comprising 16.0 to 25.0 mass % of Cr, 1 to 8 mass % of Al, La, Zr, and the balance being Fe and incidental impurities. The contents by mass % of La and Zr meet the following ranges when the foil thickness thereof is t μm: 1.4/t≦La≦6.0/t (1) 0.6/t≦Zr≦4.0/t (2) The Fe—Cr—Al-based alloy foil may further comprises Hf and the balance being Fe and incidental impurities, wherein the contents by mass % of La, Zr, and Hf meet the following ranges: 1.4/t≦La≦6.0/t (1) 0.4/t≦Zr≦2.0/t (3) 0.5/t≦Hf≦2.0/t (4)
An Fe—Cr—Al-based alloy foil comprising 0.07 mass % or less of C, 0.5 mass % or less of Si, 0.5 mass % of Mn, 16.0 to 25.0 mass % of Cr, 1 to 8 mass % of Al, 0.05 mass % or less of N, La, Zr, and the balance being Fe and incidental impurities, wherein the contents by mass % of said La and said Zr meet the following ranges when the foil thickness thereof is t μm:
A method of manufacturing an Fe—Cr—Al-based alloy foil, comprising:
Dependencies are inferred from the claim text.