logo

For the Inventor, By the Inventor

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.:

US 11773465 B1

PDFFull Text
Date of Patent:
Oct. 03, 2023

Filed:

Jul. 31, 2020

Ultra-high strength weathering steel for hot-stamping applications

Applicant:

Nucor Corporation, Charlotte, NC (US);

Inventors:

Kishlay Mishra, Memphis, TN (US);

Paul Kelly, Mount Kembla, AU;

Tao Wang, Germantown, TN (US);

Assignee:

NUCOR CORPORATION, Charlotte, NC (US);

Attorney:

Hahn Loeser & Parks LLP

Primary Examiner:

Nicholas A Wang

Assistant Examiner:

Maxwell Xavier Duffy

Int. Cl.
CPC ...
B21D 22/22 (2006.01); C21D 9/52 (2006.01); C22C 38/46 (2006.01); C22C 38/42 (2006.01); C22C 38/06 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); C21D 9/46 (2006.01); C21D 8/02 (2006.01); C21D 6/00 (2006.01); C22C 38/48 (2006.01); B21D 22/02 (2006.01); C21D 9/48 (2006.01); C21D 9/56 (2006.01);
U.S. Cl.
CPC ...
C21D 9/52 (2013.01); B21D 22/022 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0215 (2013.01); C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C21D 9/46 (2013.01); C21D 9/48 (2013.01); C21D 9/563 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C21D 2211/002 (2013.01); C21D 2211/008 (2013.01);
Abstract

Disclosed herein is a light-gauge, ultra-high strength weathering steel sheet with a composition, material properties, and surface characteristics that make it suitable for hot-stamping applications and making hot-stamped products. Also disclosed herein is a high friction rolled carbon alloy steel strip free of prior austenite grain boundary depressions and having a smear pattern. Still further disclosed herein is a high friction rolled carbon alloy steel strip that has been surface homogenized to provide a thin cast steel strip free of a smear pattern.

Find Patent Forward Citations

Mishra, Kishlay. (2023). Ultra-high strength weathering steel for hot-stamping applications (U.S. Patent No. 11773465). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11773465

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…