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.

Date of Patent:
May. 06, 2025

Filed:

Apr. 22, 2022
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Karthik Krishnan, Little Elm, TX (US);

Chad W. Glaesman, Singapore, SG;

Arpana Singh, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/40 (2005.12); C21C 5/00 (2005.12); C21D 6/00 (2005.12); C21D 9/00 (2005.12); C22C 38/00 (2005.12); C22C 38/02 (2005.12); C22C 38/04 (2005.12); C22C 38/12 (2005.12); C22C 38/16 (2005.12); C22C 38/44 (2005.12); C22C 38/46 (2005.12); C22C 38/48 (2005.12); C22C 38/50 (2005.12);
U.S. Cl.
CPC ...
C22C 38/50 (2012.12); C21C 5/005 (2012.12); C21D 6/004 (2012.12); C21D 9/00 (2012.12); C22C 38/002 (2012.12); C22C 38/02 (2012.12); C22C 38/04 (2012.12); C22C 38/12 (2012.12); C22C 38/16 (2012.12); C22C 38/40 (2012.12); C22C 38/44 (2012.12); C22C 38/46 (2012.12); C22C 38/48 (2012.12);
Abstract

Methods for improving a toughness and a strength of a stainless steel material are described herein. For example, a high strength stainless steel material can comprise at least 11 wt. % Cr, between 0.01 wt. % and 1.0 wt. % Ni, more 0 wt. % Mo, more than 0 wt. % W, more than 0 wt. % Ti, more than 0 wt. % Nb, and more than 0 wt. % V. In some examples, the high strength stainless steel material can be heat treated with at least one quench treatment and at least one tempering heat treatment. In some examples, the high strength stainless steel material can comprise between 0.01 wt. % and 0.5 wt. % Ni, no more than 0.25 wt. % Mo, no more than 0.1 wt. % W, no more than 0.1 wt. % Ti, no more than 0.1 wt. % Nb, and no more than 0.1 wt. % V.


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