Hot-dip Sn—Zn-based alloy-plated steel sheet

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United States of America

PATENT NO 11371130
APP PUB NO 20210156017A1
SERIAL NO

17044238

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Abstract

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A hot-dip Sn—Zn-based alloy-plated steel sheet according to an aspect of the present invention includes: a steel sheet having a predetermined chemical composition; a diffusion alloy layer provided on one surface or both surfaces of the steel sheet; and a Sn—Zn-plated layer provided on the diffusion alloy layer, in which the diffusion alloy layer contains Fe, Sn, Zn, Cr, and Ni, an area ratio of a Sn—Fe—Cr—Zn phase to a Sn—Fe—Ni—Zn phase in the diffusion alloy layer is 0.01 or more and less than 2.5, the diffusion alloy layer has a coverage of 98% or more with respect to the one surface, the Sn—Zn-plated layer contains 1% to 20% of Zn by mass % and a remainder consisting of Sn and impurities, and an adhesion amount of the Sn—Zn-plated layer is 10 to 80 g/m2 per one surface.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONCHIYODA-KU TOKYO 100-8071

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fuda, Masahiro Tokyo, JP 34 173
Inoue, Yoshiharu Tokyo, JP 60 771
Kusumi, Kazuhisa Tokyo, JP 26 189
Mizuguchi, Toshinori Tokyo, JP 10 41
Naito, Yasuaki Tokyo, JP 11 54
Nakano, Junji Tokyo, JP 19 109

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