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:
Jul. 11, 1978
Filed:
Dec. 02, 1976
Applicant:
Inventors:
Joseph A Chivinsky, Sarver, PA (US);
Harry E Deverell, Natrona Heights, PA (US);
Assignee:
Allegheny Ludlum Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
75125 ; 75122 ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ;
Abstract
A hot workable austenitic stainless steel having superior pitting and crevice corrosion resistance to the chloride ion. The steel consists essentially of, by weight, from 19 to 23% chromium, 5 to 16% nickel, 3 to 5% molybdenum, 2.5 to 15% manganese, up to 0.01% sulfur, up to 0.1% of at least one element from the group consisting of cerium, calcium and magnesium, nitrogen from 0.2% up to its solubility limit, up to 0.1% carbon, up to 1% silicon, up to 3% copper, up to 1% columbium, up to 0.3% vanadium, up to 0.3% titanium, balance essentially iron.