Method for producing Fe—Cr alloy

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United States of America

PATENT NO 12137501
APP PUB NO 20220015196A1
SERIAL NO

17449128

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Abstract

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A method for producing a Fe—Cr alloy comprises: rolling a slab having a chemical composition containing, by mass %, C: 0.020% or less, Si: 0.01% to 1.5%, Mn: 1.0% or less, P: 0.040% or less, S: 0.010% or less, Cr: 16.0% to 30.0%, Al: 2.0% to 6.5%, N: 0.020% or less, and Ni: 0.50% or less, with the balance being Fe and inevitable impurities to obtain a sheet material; subjecting the sheet material to siliconizing treatment by a thermal CVD method to obtain a Fe—Cr alloy having a Si content of more than 1.5 mass % and 10.0 mass % or less and satisfying:

description='In-line Formulae' end='lead'14.0%≤Si+1.15×% Al+0.35×% Cr  (1)description='In-line Formulae' end='tail'

where % Si, % Al, and % Cr indicate Si, Al, and Cr contents, by mass %, respectively in the chemical composition of the Fe—Cr alloy.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATION2-3 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO 100-0011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujisawa, Mitsuyuki Tokyo, JP 50 154
Hiratani, Tatsuhiko Tokyo, JP 28 90
Mizutani, Akito Tokyo, JP 30 43

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