Aluminum-zinc alloy plated steel sheet having excellent hot workability and corrosion resistance, and method for manufacturing same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12241161
APP PUB NO 20210348257A1
SERIAL NO

17271345

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Abstract

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Provided are an aluminum-zinc alloy plated steel sheet having excellent hot workability and corrosion resistance, and a method for manufacturing same. The plated steel sheet has an Al—Zn hot-dip aluminized coating layer on a base steel sheet, wherein: the coating layer is composed of a lower layer part and an upper layer part; the lower layer part comprises 40-50% of Fe, 50-60% of Al, 1% or less of Si, and other unavoidable impurities, on the basis of wt % of the lower layer part itself; the upper layer part comprises 10-30% of Zn, the balance of Al, and 0.05% or less of at least one of Cr, Mo, and Ni as an impurity, on the basis of wt % of the upper layer part itself; and the thickness of the upper layer part accounts for 30% or less of the total thickness of the coating layer.

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Patent Owner(s)

  • POSCO CO., LTD

International Classification(s)

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
Park, Il-Jeong Gwangyang-si, KR 6 23

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