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. 22, 2009
Filed:
Mar. 27, 2003
Lazar Strezov, Adamstown Heights, AU;
Kannappar Mukunthan, Rankin Park, AU;
Walter N. Blejde, Brownsburg, IN (US);
Rama Ballav Mahapatra, Indianapolis, IN (US);
Lazar Strezov, Adamstown Heights, AU;
Kannappar Mukunthan, Rankin Park, AU;
Walter N. Blejde, Brownsburg, IN (US);
Rama Ballav Mahapatra, Indianapolis, IN (US);
Nucor Corporation, Charlotte, NC (US);
Abstract
Steel strips and methods for producing strip are provided. The method for producing steel strips comprises continuously casting low carbon, silicon/manganese killed or aluminum killed molten steel into a strip, the molten steel comprising a concentration of residuals of 2.0 equal to or less than about 2.0 wt % is selected with regard to the microstructure of the finished strip to provide a desired yield strength, where the residuals are selected in desired amounts from the group consisting of copper, nickel, chromium, molybdenum and tin, and cooling the strip to transform the strip from austenite to ferrite in a desired temperature range. Cast steel with improved yield strength properties is produced by such method.