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:
Apr. 14, 2026
Filed:
Aug. 16, 2021
Applicants:
Nexter Munitions, Versailles, FR;
Universite DE Bourgogne, Dijon, FR;
Inventors:
Assignees:
NEXTER MUNITIONS, Versailles, FR;
UNIVERSITE DE BOURGOGNE, Dijon, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/10 (2006.01); B22F 3/10 (2006.01); B22F 3/105 (2006.01); B22F 3/24 (2006.01); B22F 9/04 (2006.01); B22F 9/08 (2006.01); C22C 33/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01);
U.S. Cl.
CPC ...
C22C 38/105 (2013.01); B22F 3/1028 (2013.01); B22F 3/105 (2013.01); B22F 3/24 (2013.01); B22F 9/04 (2013.01); B22F 9/082 (2013.01); C22C 33/0207 (2013.01); C22C 33/0285 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); B22F 2003/1051 (2013.01); B22F 2003/248 (2013.01); B22F 2009/043 (2013.01); B22F 2009/0824 (2013.01); B22F 2301/35 (2013.01); B22F 2304/10 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01);
Abstract
A steel having high mechanical properties, characterized in that it has the following composition by weight: 12% to 25% Nickel; 7.4% to 20% Cobalt; 3% to 11% Molybdenum; 0.2% to 2.21% addition elements, the remainder being iron, the structure of the material including a combination of fine grains and ultrafine grains, the so-called fine grains having a grain size of between 1.2 micrometers and 3 micrometers and the so-called ultrafine grains having a grain size of between 0.2 and 1 micrometer, the proportion of ultrafine grains being between 55% and 65%, and a process for manufacturing the steel.