To improve the diffusion joining property of a heat- and oxidation- resistant Fe-Cr-Al alloy used, e.g. for a support for catalyst for cleanup of exhaust gas from various internal combustion engines.
This alloy has a composition which consists of, by weight, 15-28% Cr, 3.0-4.0 Al, 31/233×(REM+0.021) to 0.1% P, >0.06-0.15% REM, 0.02 to (0.03+4×C+24/7×N)% Ti, 0.05-2.0% Nb, and the balance essentially Fe and in which the contents of C, N, S, Si, Mn, and Ni as impurities are limited to ≤0.02%, ≤0.02%, ≤0.003%, ≤0.5%, ≤1.0%, and ≤0.3%, respectively, and also the total content of C and N is limited to ≤0.03%. By this method, the joining process for heat- and oxidation-resistant parts and products can be facilitated, and also reliability can be improved.
YAMANAKA MIKIO
KASUYA MASAYUKI
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