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. 19, 2023
Filed:
Feb. 22, 2019
Applicant:
Vallourec Deutschland Gmbh, Dusseldorf, DE;
Inventors:
Mahrez Khouja, Boulogne Billancourt, FR;
Bernhard Koschlig, Boulogne Billancourt, FR;
Ralf Hojda, Boulogne Billancourt, FR;
Assignee:
VALLOUREC DEUTSCHLAND GmbH, Dusseldorf, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 38/00 (2006.01); C21D 9/08 (2006.01); C21D 8/10 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/44 (2006.01); C22C 38/50 (2006.01);
U.S. Cl.
CPC ...
C21D 9/085 (2013.01); C21D 8/105 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/44 (2013.01); C22C 38/50 (2013.01); C21D 2211/008 (2013.01);
Abstract
The present invention deals with alloyed steels having yield strength of at least 862 MPa (125 Ksi) and exhibiting outstanding hardness and toughness behavior, especially under stringent conditions which may be subjected to frost-heave and thaw settlement cycles, namely at subzero temperatures. The invention also relates to a seamless pipe comprising said steel and a method of production of said pipe thereof.