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. 17, 2026
Filed:
May. 10, 2021
Applicant:
Haynes International, Inc., Kokomo, IN (US);
Inventors:
Paul Crook, Kokomo, IN (US);
Ramanathan Krishnamurthy, Carmel, IN (US);
Assignee:
Haynes International, Inc., Kokomo, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 19/07 (2006.01); C22B 9/18 (2006.01); C22C 1/02 (2006.01); C22F 1/00 (2006.01); C22F 1/10 (2006.01);
U.S. Cl.
CPC ...
C22C 19/07 (2013.01); C22B 9/18 (2013.01); C22C 1/02 (2013.01); C22F 1/002 (2013.01); C22F 1/10 (2013.01);
Abstract
A chromium-bearing, cobalt-based alloys amenable to wrought processing has improved resistance to both chloride-induced crevice corrosion and galling. The alloy contains up to 3.545 wt. % nickel, 0.242 to 0.298 wt. % nitrogen, and may contain 22.0 to 30.0 wt. % chromium, 3.0 to 10.0 wt. % molybdenum, up to 5.0 wt. % tungsten, up to 7 wt. % iron, 0.5 to 2.0 wt. % manganese, 0.5 to 2.0 wt. % silicon, 0.02 to 0.11 wt. % carbon, 0.005 to 0.205 wt. % aluminum, and the balance is cobalt plus impurities.