Title:
LOW-CR FERRITIC STAINLESS STEEL WITH EXCELLENT FORMABILITY AND HIGH TEMPERATURE PROPERTIES, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/122320
Kind Code:
A1
Abstract:
Disclosed are low-Cr ferritic stainless steel with excellent formability and high temperature properties, and a manufacturing method therefor. Embodiments of the present invention may provide: low-Cr ferritic stainless steel, which has excellent high temperature strength and high temperature oxidation resistance and secures formability, corresponding to high Cr ferritic stainless steel without an increase in the Cr amount or an addition of Nb, by optimizing the amounts of Ci, Si, and Sn and utilizing solid solution strengthening and precipitation strengthening; and a manufacturing method therefor.
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Inventors:
JUNG IL CHAN (KR)
LIM JIN WOO (KR)
RYU HAN JIN (KR)
LIM JIN WOO (KR)
RYU HAN JIN (KR)
Application Number:
PCT/KR2019/002017
Publication Date:
June 18, 2020
Filing Date:
February 20, 2019
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/20; C21D6/00; C21D9/46; C22C38/00; C22C38/02; C22C38/04; C22C38/06; C22C38/28
Foreign References:
| JP2010159487A | 2010-07-22 | |||
| KR20170101262A | 2017-09-05 | |||
| CN102277538A | 2011-12-14 | |||
| KR20140083726A | 2014-07-04 | |||
| JP2017048417A | 2017-03-09 |
Other References:
See also references of EP 3875627A4
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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