Metallic coated steel product

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United States of America Patent

PATENT NO 11555235
SERIAL NO

16480976

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Abstract

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Provided is a metallic coated steel product which is less likely to experience LME and blowhole formation and is likely to exhibit an improved corrosion resistance at welding heat affected zones. The metallic coated steel product is a hot-dip metallic coated steel product including a steel product and a plating layer that is provided on a surface of the steel product and includes a Zn—Al—Mg alloy layer. In a cross-section of the Zn—Al—Mg alloy layer an area fraction of MgZn2 phase is from 45 to 75%, a total area fraction of MgZn2 and Al phases is not less than 70%, and an area fraction of Zn—Al—MgZn2 ternary eutectic structure is from 0 to 5%; and the plating layer has a predetermined chemical composition.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATION6-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1008071 JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishida, Yoshinari Tokyo, JP 12 56
Mitsunobu, Takuya Tokyo, JP 51 54
Shimoda, Nobuyuki Tokyo, JP 13 53
Tokuda, Kohei Tokyo, JP 33 115

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