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:
Sep. 03, 2019
Filed:
May. 12, 2015
Applicant:
Jfe Steel Corporation, Chiyoda-Ku, Tokyo, JP;
Inventors:
Assignee:
JFE STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/54 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/20 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01);
U.S. Cl.
CPC ...
C22C 38/54 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/20 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); C21D 9/46 (2013.01);
Abstract
A ferritic stainless steel that a composition including in terms of % by mass, C: 0.015% or less, Si: 1.0% or less, Mn: 1.0% or less, P: 0.040% or less, S: 0.010% or less, Cr: 10.0% to 23.0%, Al: 0.2% to 1.0%, N: 0.015% or less, Cu: 1.0% to 2.0%, Nb: 0.30% to 0.65%, Ti: 0.50% or less, O: 0.0030% or less, and the balance being Fe and unavoidable impurities, wherein a Si content and an Al content satisfy Si≥Al, and the Al content and an O content satisfy Al/O≥100.