The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2016
Filed:
Mar. 05, 2012
High purity ferritic stainless steel sheet excellent in corrosion resistance and anti-glare property
Masaharu Hatano, Tokyo, JP;
Hiroyuki Matsuyama, Tokyo, JP;
Akihito Yamagishi, Tokyo, JP;
Naoto Hansaki, Tokyo, JP;
Eiichiro Ishimaru, Tokyo, JP;
Masaharu Hatano, Tokyo, JP;
Hiroyuki Matsuyama, Tokyo, JP;
Akihito Yamagishi, Tokyo, JP;
Naoto Hansaki, Tokyo, JP;
Eiichiro Ishimaru, Tokyo, JP;
Abstract
An alloy-saving type high purity ferritic stainless steel sheet, comprising a steel sheet which contains, by mass %, C: 0.001 to 0.03%, Si: 0.01 to 1%, Mn: 0.01 to 1.5%, P: 0.005 to 0.05%, S: 0.0001 to 0.01%, Cr: 13 to 30%, N: 0.001 to 0.03%, Al: 0.005 to 1%, and Sn: 0.01 to 1% and has a balance of Fe and unavoidable impurities and which has a surface film, the surface film containing one or both of Al and Si in a total of 5 to 50 at % and Sn, an average concentration of Cr in the surface film being 1.1 to 3 times the concentration of Cr inside the steel sheet, and the surface film having a surface roughness of an arithmetic average roughness Ra of 0.1 to 1.5 μm.