Aluminum-zinc alloy plated steel sheet having excellent hot workability and corrosion resistance, and method for manufacturing same
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United States of America
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Mar 4, 2025
Grant Date -
Nov 11, 2021
app pub date -
Aug 23, 2019
filing date -
Aug 23, 2019
priority date (Note) -
In Force
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Abstract
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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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- POSCO CO., LTD
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- [Classification Symbol]
- [Patents Count]
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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