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.

Date of Patent:
Sep. 27, 1977

Filed:

Feb. 17, 1976
Applicant:
Inventor:

James Roy Crum, Ona, WV (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
75124 ; 75122 ; 75125 ; 7512 / ; 148 31 ; 148 37 ;
Abstract

Iron-based alloy composition containing special proportions of nickel, chromium, aluminum, copper and carbon provides good corrosion-resistance characteristics for service in caustic media, e.g., sodium hydroxide, chloride media, e.g., magnesium chloride, caustic-chloride media, e.g., sodium hydroxide-sodium chloride mixtures, and also when exposed to some acid media, e.g., nitric acid. Special utility particularly includes resistance to stress-corrosion-cracking in hot caustic and chloride media. Alloy has good workability for production of wrought products such as plate, bar and sheet and is also suitable for making corrosion-resistant castings and welded structures, e.g., chemical plant equipment.


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