Title:
HOT-ROLLED STEEL SHEET HAVING EXCELLENT EXPANDABILITY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/124746
Kind Code:
A1
Abstract:
The present invention relates to steel used for a sash component and the like of a vehicle and, more specifically, to a hot-rolled steel sheet for a high-strength electric resistance welded steel pipe having excellent expandability and a method for manufacturing same, the hot-rolled steel sheet having a smaller decrease in the strength of a welding heat-affected zone (HAZ) formed during electric resistance welding, in comparison with a base material.
Inventors:
NA HYUN-TAEK (KR)
SEO SEOK-JONG (KR)
SEO SEOK-JONG (KR)
Application Number:
PCT/KR2018/013943
Publication Date:
June 27, 2019
Filing Date:
November 15, 2018
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/04; C21D8/10; C22C38/00; C22C38/02; C22C38/26; C22C38/28; C22C38/38
Foreign References:
| JPH08188847A | 1996-07-23 | |||
| KR101630982B1 | 2016-06-16 | |||
| KR20140083787A | 2014-07-04 | |||
| JP2009270171A | 2009-11-19 | |||
| JP2011144425A | 2011-07-28 | |||
| KR20130116329A | 2013-10-23 | |||
| JP2000063955A | 2000-02-29 |
Other References:
See also references of EP 3730641A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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