Title:
THIN STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/168167
Kind Code:
A1
Abstract:
The present invention provides a thin steel sheet which has a chemical composition that satisfies 0.0001 ≤ (Sn) + 0.3(Cu) + 0.1(Cr) ≤ 0.2000 (wherein (Sn), (Cu) and (Cr) respectively represent the contents (mass%) of Sn, Cu and Cr), while having an oxide film that has a thickness of 50 nm or less on the surface, wherein if the oxide film is measured by means of an FT-IR reflection method, A/C < 0.30 and B/C < 3.0 (wherein A represents the area of a peak associated with SiO2, B represents the area of a peak associated with MnSiO3 and C represents the area of a peak associated with Mn2SiO4) are satisfied.
Inventors:
MAKI JUN (JP)
FUKUI MASAHARU (JP)
FUKUI MASAHARU (JP)
Application Number:
PCT/JP2021/003753
Publication Date:
August 11, 2022
Filing Date:
February 02, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C23G1/08; C21D9/46; C22C38/00; C23C22/78
Domestic Patent References:
| WO2016147549A1 | 2016-09-22 |
Foreign References:
| JPH09310148A | 1997-12-02 | |||
| JPH08225888A | 1996-09-03 | |||
| JP2014162985A | 2014-09-08 | |||
| JP2004323969A | 2004-11-18 | |||
| JP2007162057A | 2007-06-28 | |||
| JP2019531409A | 2019-10-31 | |||
| JP2007138212A | 2007-06-07 | |||
| JP2007262479A | 2007-10-11 | |||
| JP2015098620A | 2015-05-28 | |||
| JP2016084520A | 2016-05-19 |
Other References:
See also references of EP 4289988A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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