Title:
STEEL SHEET FOR ENAMEL AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/121039
Kind Code:
A1
Abstract:
A steel sheet for enamel according to an embodiment of the present invention comprises, in wt%, C: 0.001 to 0.08%, Mn: 0.05 to 0.40%, Si: 0.001 to 0.03%, Al: 0.005 to 0.020%, P: 0.001 to 0.020%, S: 0.001 to 0.020%, Cu: 0.03 to 0.08%, N: 0.006 to 0.015%, O: 0.003% or less (excluding 0%) and the balance being Fe and inevitable impurities. The steel sheet for enamel according to an embodiment of the present invention comprises an oxide layer having a concentration gradient in which the oxygen concentration decreases from the surface to the inside, the thickness of the oxide layer being 0.006 to 0.030 ㎛.
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Inventors:
KIM JAIIK (KR)
Application Number:
PCT/KR2022/019318
Publication Date:
June 29, 2023
Filing Date:
December 01, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/04; C21D8/02; C22C38/00; C22C38/02; C22C38/06; C22C38/10; C22C38/12; C22C38/14; C22C38/16
Foreign References:
| CN113308647A | 2021-08-27 | |||
| KR20090043570A | 2009-05-06 | |||
| KR20210080723A | 2021-07-01 | |||
| JP2008255445A | 2008-10-23 | |||
| JP2000001741A | 2000-01-07 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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