Plated steel sheet having excellent corrosion resistance, galling resistance, workability and surface property

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12054829
APP PUB NO 20220341017A1
SERIAL NO

17762533

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Abstract

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Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.

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Patent Owner(s)

Patent OwnerAddress
POSCO(GOEDONG-DONG) 6261 DONGHAEAN-RO NAM-GU POHANG-SI GYEONGSANGBUK-DO 37859
STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION67 CHEONGAM-RO NAM-GU POHANG-SI GYEONGSANGBUK-DO 37673
POSCO COATED & COLOR STEEL CO LTD173 CHEOLGANG-RO NAM-GU POHANG-SI GYEONGSANGBUK-DO 37866

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hong, Moon-Hi Pohang-si, KR 6 5
Kang, Dae-Young Gwangyang-si, KR 11 17
Kim, Heung-Yun Pohang-si, KR 14 71
Kim, Myung-Soo Gwangyang-si, KR 69 334
Kim, Sung-Joo Gwangyang-si, KR 41 271
Kim, Tae-Chul Gwangyang-si, KR 31 47
Park, Kyung-Kwan Pohang-si, KR 3 0
Park, Tae-Yeul Pohang-si, KR 3 0
Sohn, Il-Ryoung Gwangyang-si, KR 43 204

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