Coated steel member, coated steel sheet, and methods for producing same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12215411
APP PUB NO 20230349030A1
SERIAL NO

18348163

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A coated steel member includes: a steel sheet substrate containing, as a chemical composition, by mass %, C: 0.25% to 0.65%, Si: 0.10% to 1.00%, Mn: 0.30% to 1.00%, P: 0.050% or less, S: 0.0100% or less, N: 0.010% or less, Ti: 0.010% to 0.100%, B: 0.0005% to 0.0100%, Nb: 0.02% to 0.10%, Mo: 0.10% to 1.00%, Cu: 0.15% to 1.00%, and Ni: 0.05% to 0.25%; and a coating formed on a surface of the steel sheet substrate and containing Al and Fe. The maximum Cu content in a range from the surface to a depth of 5.0 μm is 150% or more of the Cu content of the steel sheet substrate.

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Patent Owner(s)

  • 501 NIPPON STEEL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tabata, Shinichiro Tokyo, JP 27 74

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