Hot-stamping formed body

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221667
APP PUB NO 20220213572A1
SERIAL NO

17609243

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A hot-stamping formed body includes a steel sheet having a predetermined chemical composition and a film disposed on the steel sheet. In the film, in GDS measurement in a region from a surface to a depth position of 100 μm from the surface, Zntotal as a cumulative amount of Zn is 10.0 g/m2 or more and less than 40.0 g/m2, in GDS measurement in a region from the surface to a peak position of Al, a sum of Zna as a cumulative amount of Zn and a cumulative amount of Mn is 20.0 g/m2 or less and a sum of a cumulative amount of Al, a cumulative amount of Si, and a cumulative amount of Cr is 60 mg/m2 or more and 240 mg/m2 or less, Zntotal−Zna is 3.0 g/m2 or more and 30.0 g/m2 or less, and an arithmetic average roughness Ra is less than 1.50 μm.

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Patent Owner(s)

  • 501 NIPPON STEEL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akutsu, Hiroki Tokyo, JP 2 0
Nakagawa, Hiroyuki Tokyo, JP 110 659

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