Invention Grant
- Patent Title: High corrosion resistant hot dip Zn alloy plated steel sheet
- Patent Title (中): 高耐腐蚀热浸锌合金镀层钢板
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Application No.: US13824445Application Date: 2011-12-26
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Publication No.: US09302449B2Publication Date: 2016-04-05
- Inventor: Sang-Heon Kim , Young-Sool Jin , Min-Suk Oh , Su-Young Kim , Bong-Hwan Yoo
- Applicant: Sang-Heon Kim , Young-Sool Jin , Min-Suk Oh , Su-Young Kim , Bong-Hwan Yoo
- Applicant Address: KR Pohang-si
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si
- Agency: The Webb Law Firm
- Priority: KR10-2010-0137294 20101228
- International Application: PCT/KR2011/010099 WO 20111226
- International Announcement: WO2012/091385 WO 20120705
- Main IPC: B32B15/01
- IPC: B32B15/01 ; C23C2/28 ; C23C2/06 ; C23C2/20 ; C23C2/26

Abstract:
Provided is a hot dip zinc (Zn) alloy plated steel sheet having excellent corrosion resistance and surface qualities, and a method of manufacturing the same. For this purpose, provided is a high corrosion resistant hot dip Zn alloy plated steel sheet which includes an underlying steel sheet and a hot dip Zn alloy plating layer, wherein a composition of the hot dip Zn alloy plating layer includes 1 to 3 wt % of aluminum (Al), 1.5 to 4.0 wt % of magnesium (Mg), and Zn and unavoidable impurities as a remainder, in which Al+Mg is in a range of 2.5 to 7.0 wt % and Al: (Al+Mg) ratio is in a range of 0.38 to 0.48, and a method of manufacturing the high corrosion resistant hot dip Zn alloy plated steel sheet.
Public/Granted literature
- US20130183541A1 High Corrosion Resistant Hot Dip Zn Alloy Plated Steel Sheet and Method of Manufacturing the Same Public/Granted day:2013-07-18
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