High-strength aluminum coated steel sheet having excellent anti-corrosion properties and weldability, and manufacturing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221700
APP PUB NO 20240026514A1
SERIAL NO

18266269

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Abstract

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Provided is an aluminum coated steel sheet having excellent anti-corrosion properties and weldability, and a manufacturing method thereof. The aluminum coated steel sheet includes: an austenitic base steel sheet including at least 70 area % of an austenite microstructure; and an aluminum coating layer formed on the base steel sheet, wherein the base steel sheet includes at least 80 area % of ferrite in a surface layer portion, which denotes a region extending from the interface with the coating layer to a depth of 100 μm into the base steel sheet, and the aluminum coating layer may have a composition comprising 2-12 wt % of Si, 5-30 wt % of Zn, and 0.1-5 wt % of Mn, with the balance being Al and inevitable impurities.

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Patent Owner(s)

  • POSCO CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Myung-Soo Gwangyang-si, KR 69 334
Lee, Suk-Kyu Gwangyang-si, KR 13 9
Oh, Jong-Gi Gwangyang-si, KR 4 0

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