| 简介 |
PROBLEM TO BE SOLVED : To provide stainless steel foil suitable for an apparatus and a device of catalyst carrier and catalyst converter combustion gas exhaust system for purifying automobile exhaust gas, and upon brazing, hard to be diffusion-bonded at a non-intended part, and to provide a method for producing the same.
SOLUTION : The stainless steel foil has a componential composition comprising, by mass, or, by mass ppm, ≤0.05% C, ≤2.0% Si, ≤1.0% Mn, 13.0 to 30.0% Cr, 3.0 to 10.0% Al, ≤0.10% N, ≤0.02% Ti, 0.005 to 0.20% Zr and 0.03 to 0.20% rare earth metals, and if required, comprising one or more kinds selected from 0.01 to 0.20% Hf, 10 to 300 ppm Ca and 15 to 300 ppm Mg, and the balance Fe with inevitable impurities, and whose surface is coated with an oxide film essentially consisting of alumina. The stainless steel foil having the above componential composition is heated at 500 to 1, 000°C for 10 to 600 seconds in an atmosphere having a dew point of ≥-20°C.
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