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:
Mar. 26, 2024
Filed:
Dec. 21, 2017
Applicant:
AK Steel Properties, Inc., West Chester, OH (US);
Inventors:
Jerry William Schoen, Cincinnati, OH (US);
Kimani Tirawa Partin, Franklin, OH (US);
Christopher Mark Wilkins, Centennial, CO (US);
Assignee:
Cleveland-Cliffs Steel Properties Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/147 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/34 (2006.01); C21D 1/76 (2006.01);
U.S. Cl.
CPC ...
H01F 1/14783 (2013.01); C21D 8/1255 (2013.01); C21D 8/1283 (2013.01); C21D 8/1288 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/008 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/34 (2013.01); H01F 1/14791 (2013.01); C21D 1/76 (2013.01); C21D 8/1222 (2013.01);
Abstract
Increasing the chromium content of an electrical steel substrate to a level greater than or equal to about 0.45 weight percent (wt %) produced a much improved forsterite coating having superior and more uniform coloration, thickness and adhesion. Moreover, the so-formed forsterite coating provides greater tension potentially reducing the relative importance of any secondary coating.