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. 04, 1986
Filed:
Jul. 03, 1984
Applicant:
Inventor:
John P Ziemianski, Avonmore, PA (US);
Assignee:
Allegheny Ludlum Steel Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
7512 / ; 7512 / ; 75125 ;
Abstract
An austenitic stainless steel particularly adapted for low temperature applications and having good low temperature properties; the steel consists essentially of, in weight percent, carbon 0.03 max., manganese 6.4 to 7.5, silicon up to 1%, chromium 16 to 17.5, nickel 4 to 5.0, copper up to 1%, nitrogen 0.13 to 0.20, and balance iron. The steel is characterized by minimum properties of 17% minimum elongation, 0.025 inch lateral expansion and tensile strength of 175,000 psi at a temperature of -320.degree. F. and an M.sub.d30 temperature of -10.degree. C. or lower.