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Patent Searching and Data


Title:
HIGH STRENGTH HOT-DIPPED STEEL SHEET HAVING EXCELLENT PLATING ADHESION, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/139191
Kind Code:
A1
Abstract:
The present invention provides a high strength hot-dipped steel sheet having excellent plating adhesion, and a method for producing same. This high strength hot-dipped steel sheet has a plating layer, which has a plating coating amount of 30-90 g/m2 per surface, on a steel sheet having a constituent composition which contains, in terms of mass%, 0.02-0.30% of C, 0.01-2.0% of Si, 0.2-3.0% of Mn, 0.08% or less of P, 0.02% or less of S and 0.001-0.40% of Al, with the remainder comprising Fe and unavoidable impurities, and the plating layer contains 0.3-1.5 g/m2 of separation base iron.

Inventors:
KOBA MASAKI (JP)
FUSHIWAKI YUSUKE (JP)
NAGATAKI YASUNOBU (JP)
Application Number:
PCT/JP2018/000247
Publication Date:
August 02, 2018
Filing Date:
January 10, 2018
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D9/46; C23C2/02; C22C38/00; C22C38/06; C22C38/14; C23C2/28; C23C2/40
Domestic Patent References:
WO2014002428A12014-01-03
Foreign References:
JP2010196146A2010-09-09
JPH1081948A1998-03-31
JP2002317257A2002-10-31
Other References:
See also references of EP 3575432A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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