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:
Aug. 30, 2022
Filed:
Jun. 10, 2014
Applicants:
Hitachi Metals, Ltd., Minato-ku, JP;
Safran Aircraft Engines, Paris, FR;
Inventors:
Assignees:
HITACHI METALS, LTD., Minato-ku, JP;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
C21C 5/52 (2006.01); C22C 38/14 (2006.01); C22B 9/20 (2006.01); C22C 38/00 (2006.01); B22D 1/00 (2006.01); C22B 9/00 (2006.01); C22B 9/05 (2006.01); C22B 9/16 (2006.01); B22D 7/00 (2006.01); C21C 7/10 (2006.01); C22C 33/04 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01);
U.S. Cl.
CPC ...
C22C 38/14 (2013.01); B22D 1/002 (2013.01); B22D 7/00 (2013.01); C21C 5/52 (2013.01); C21C 7/10 (2013.01); C22B 9/003 (2013.01); C22B 9/05 (2013.01); C22B 9/16 (2013.01); C22B 9/20 (2013.01); C22C 33/04 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/105 (2013.01); C22C 38/12 (2013.01); Y02P 10/25 (2015.11);
Abstract
A production method of a maraging steel includes: the step of producing, by vacuum melting, a remelt electrode which comprises from 0.2 to 3.0% by mass of Ti and from 0.0025 to 0.0050% by mass of N; and the step of remelting the remelt electrode to produce a steel ingot having an average diameter of 650 mm or more; wherein the resulting maraging steel includes from 0.2 to 3.0% by mass of Ti.