Title:
STEEL PLATE FOR EXHAUST SYSTEM STEEL PIPE HAVING IMPROVED CORROSION RESISTANCE AND FORMABILITY, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/121133
Kind Code:
A1
Abstract:
The present specification discloses: a steel plate for an exhaust system steel pipe, wherein the steel plate is economical and improved in terms of corrosion resistance and formability by controlling the alloy components and production method; and a method for producing the steel plate. The steel plate which is for a steel pipe and has improved corrosion resistance and formability according to an embodiment of the present invention may include 0.001-0.02 wt% of C, 0.4-1.0 wt% of Si, 0.1-0.5 wt% of Mn, 8.0-10.0 wt% of Cr, 0-0.3 wt% of Ni (exclusive of 0), 0-0.3 wt% of Cu (exclusive of 0), 0.02-0.2 wt% of Al, 0.001-0.02 wt% of N, and 0.05-0.4 wt% of Ti, with the remainder including Fe and inevitable impurities.
Inventors:
KANG HYUNGGU (KR)
KIM DONGHOON (KR)
JO GYUJIN (KR)
KIM JINSUK (KR)
KIM YOUNGJUN (KR)
KIM DONGHOON (KR)
JO GYUJIN (KR)
KIM JINSUK (KR)
KIM YOUNGJUN (KR)
Application Number:
PCT/KR2022/020359
Publication Date:
June 29, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/50; C21D8/02; C21D9/46; C22C38/00; C22C38/06; C22C38/42
Foreign References:
| KR20210079082A | 2021-06-29 | |||
| JP2007270168A | 2007-10-18 | |||
| KR20150110762A | 2015-10-02 | |||
| JP2002285300A | 2002-10-03 | |||
| KR20100058851A | 2010-06-04 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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