Title:
AUSTENITIC STAINLESS STEEL SHEET, COVER MEMBER, AND METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2016/158427
Kind Code:
A1
Abstract:
Provided is an austenitic stainless steel sheet which exhibits excellent cleanability, anti-glare properties, and hydrophilicity. In this austenitic stainless steel sheet, which is temper rolled using a dull roll after being subjected to finishing cold rolling and bright annealing, the steel sheet surface has an arithmetic average roughness Ra in a direction orthogonal to the rolling direction of at least 0.2 µm, but not more than 1.2 µm. Furthermore, the dull-pattern transfer rate to the steel sheet surface is at least 15%, but not more than 70%. Moreover, micropits which are formed in the steel sheet surface, have a depth of at least 0.5 µm, and have an opening area of at least 10 µm2, have a presence density of not more than 10.0 per 0.01 mm2, and an opening area ratio of not more than 1.0%. Furthermore, a film formed on the steel sheet surface is formed from an oxide which mainly consists of SiO2, includes, as film-forming elements other than C, at least Si, N, Al, Mn, Cr, Fe, Nb, Ti, and O, has a Si content of at least 10 atomic%, and has a N content of not more than 10 atomic%.
Inventors:
KAWAGOE TAKAFUMI (JP)
KATSUKI JUNICHI (JP)
KATSUKI JUNICHI (JP)
Application Number:
PCT/JP2016/058378
Publication Date:
October 06, 2016
Filing Date:
March 16, 2016
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
International Classes:
B21B1/22; C21D9/46; C22C38/00; C22C38/58; G11B33/02; G11B33/14
Domestic Patent References:
| WO2012133837A1 | 2012-10-04 |
Foreign References:
| JP2005240062A | 2005-09-08 | |||
| JP2007119856A | 2007-05-17 | |||
| JPS63235461A | 1988-09-30 |
Other References:
See also references of EP 3278888A4
Attorney, Agent or Firm:
KABASAWA Joo et al. (JP)
Noboru Kabasawa (JP)
Noboru Kabasawa (JP)
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