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:
Oct. 21, 2025
Filed:
Aug. 23, 2019
Applicant:
Chemetics Inc., Vancouver, CA;
Inventor:
Grant Harding, Whitby, CA;
Assignee:
CHEMETICS INC., Vancouver, CA;
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/58 (2006.01); C21D 1/18 (2006.01); C21D 1/26 (2006.01); C21D 6/00 (2006.01); C21D 8/00 (2006.01); C22C 30/00 (2006.01); C22C 38/00 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C21D 1/18 (2013.01); C21D 1/26 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 8/005 (2013.01); C22C 30/00 (2013.01); C22C 38/001 (2013.01); C21D 2211/001 (2013.01);
Abstract
Austenitic stainless alloys have been discovered that exhibit unexpectedly superior corrosion resistance, particularly to sulfuric acid solutions, when compared to that exhibited by conventional alloys with closely related compositions. These alloys advantageously are corrosion resistant to a relatively wide range of sulfuric acid concentration and temperature and are thus particularly suitable for use in the industrial production of sulfuric acid.