Title:
HIGH-STRENGTH BLACKPLATE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/125789
Kind Code:
A1
Abstract:
The present invention provides a high-strength blackplate and a manufacturing method therefor. The blackplate according to an embodiment of the present invention comprises, by wt%: 0.03-0.09% of carbon (C); 0.2-0.4% of manganese (Mn); 0.01-0.06% of aluminum (Al); 0.15-0.45% of chromium (Cr); 0.05-0.25% of copper (Cu); 0.03-0.08% of titanium (Ti); and the remainder of iron (Fe) and unavoidable impurities, and has a yield strength of 570-700 MPa.
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Inventors:
KIM JAI-IK (KR)
Application Number:
PCT/KR2020/018453
Publication Date:
June 24, 2021
Filing Date:
December 16, 2020
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/20; B21B1/24; B21B3/00; C21D8/02; C22C38/00; C22C38/06; C22C38/28
Foreign References:
| KR19990014807A | 1999-02-25 | |||
| KR20000034959A | 2000-06-26 | |||
| JP2002239646A | 2002-08-27 | |||
| KR20090007783A | 2009-01-20 | |||
| KR20080106330A | 2008-12-04 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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