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:
Feb. 21, 2012
Filed:
Dec. 28, 2005
Applicants:
Hachemi Loucif, Karlskoga, SE;
Mats Liljas, Avesta, SE;
Inventors:
Hachemi Loucif, Karlskoga, SE;
Mats Liljas, Avesta, SE;
Assignee:
Outokumpu Oyj, Espoo, FI;
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/38 (2006.01); C22C 38/22 (2006.01); C22C 30/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
High-alloy austenitic stainless steels that are extra resistant to pitting and crevice corrosion in aggressive, chloride-containing solutions have a tendency for macro-segregation of Mo, at solidification of the melt. This problem is solved by a super austenite stainless steel having the following composition, in % by weight: max 0.03 C, max 0.5 Si, max 6 Mn, 28-30 Cr, 21-24 Ni, 4-6% (Mo+W/2), the content of W being max 0.7, 0.5-1.1 N, max 1.0 Cu, balance iron and impurities at normal contents originating from the production of the steel.