Title:
COLD ROLLED STEEL SHEET FOR ENAMEL, HAVING EXCELLENT ANTI-FISHSCALE PROPERTIES AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/113535
Kind Code:
A1
Abstract:
The present invention relates to a cold rolled steel sheet and a method for manufacturing same, the cold rolled steel sheet comprising, in wt%, 0.0003 to 0.003% of C, 0.25 to 0.55% of Mn, 0.001 to 0.03% of Si, 0.0005 to 0.0015% of Al, 0.01 to 0.03% of P, 0.001 to 0.010% of S, 0.03 to 0.08% of Cu, 0.008 to 0.015% of N, 0.1 to 0.3% of Mo, 0.025 to 0.055% of O, and a balance of Fe and inevitable impurities, and comprising an oxide layer, wherein the thickness of the oxide layer, which is formed from the surface of the cold rolled steel sheet toward the inside thereof, may be 0.006 to 0.030 μm.
Inventors:
KIM JAIIK (KR)
Application Number:
PCT/KR2022/020584
Publication Date:
June 22, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/04; C21D8/02; C21D9/46; C22C38/02; C22C38/06; C22C38/12; C22C38/16
Foreign References:
| KR20090043570A | 2009-05-06 | |||
| KR20210080723A | 2021-07-01 | |||
| JP2006037215A | 2006-02-09 | |||
| KR20020027565A | 2002-04-13 | |||
| KR20020049921A | 2002-06-26 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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