Ferritic stainless steel sheet, method for producing the same, and part

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United States of America Patent

PATENT NO 11891681
APP PUB NO 20220275492A1
SERIAL NO

17674502

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Abstract

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The present invention has as its technical problem to prevent cracking when producing a steel sheet by ferritic stainless steel sheet and provide a ferritic stainless steel sheet excellent in toughness and a part using the same. To solve this technical problem, the present invention provides steel comprised of, by mass %, C: 0.001 to 0.030%, Si: 0.01 to 1.00%, Mn: 0.01 to 1.00%, P: 0.010 to 0.050%, S: 0.0002 to 0.0100%, Cr: 10.0 to 20.0%, N: 0.001 to 0.030%, Nb: 0.10 to 0.40%, B: 0.0002 to 0.0030%, Al: 0.005 to 0.100%, and a balance of Fe and unavoidable impurities in which the amount of solute Nb being less than or equal to a smaller value of 0.20 and (Nb content-0.08) mass %.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL STAINLESS STEEL CORPORATION8-2 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1000005 ?1000005

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamada, Junichi Tokyo, JP 66 242
Hayashi, Atsutaka Tokyo, JP 9 33

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