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:
Sep. 28, 1976
Filed:
Oct. 02, 1975
Applicant:
Inventors:
Peter J Koros, Pittsburgh, PA (US);
John David Grozier, Bethel Park, PA (US);
Assignee:
Jones & Laughlin Steel Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
148 / ; 7512 / ; 148 36 ;
Abstract
The incidence of rare earth oxy-sulfide inclusions in killed hot-rolled high strength low alloy steels of the vanadium-nitrogen type is lowered through restriction of the silicon content to 0.05% maximum without a concurrent reduction of yield strength to values below 80,000 p.s.i. through a balance of composition, product thickness and hot-rolling collection temperature.