US 12,291,767 B2
High strength stainless steel material
Karthik Krishnan, Little Elm, TX (US); Chad W. Glaesman, Singapore (SG); and Arpana Singh, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Apr. 22, 2022, as Appl. No. 17/727,418.
Claims priority of provisional application 63/230,203, filed on Aug. 6, 2021.
Prior Publication US 2023/0059069 A1, Feb. 23, 2023
Int. Cl. C22C 38/40 (2006.01); C21C 5/00 (2006.01); C21D 6/00 (2006.01); C21D 9/00 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/12 (2006.01); C22C 38/16 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01)
CPC C22C 38/50 (2013.01) [C21C 5/005 (2013.01); C21D 6/004 (2013.01); C21D 9/00 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/12 (2013.01); C22C 38/16 (2013.01); C22C 38/40 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01)] 15 Claims
 
1. A stainless steel material comprising:
11-14 wt. % Cr, 0.01 wt. %-1.0 wt. % Ni, 0.01-0.25 wt. % Mo, 0.01-0.25 wt. % W, 0.01-0.25 wt. % Ti, 0.01-0.25 wt. % Nb, 0-0.25 wt. % V, 0.001-0.040 wt. % S, 0.001-0.040 wt. % P, 0.01-0.25 wt. % Cu, 0.01-1.0 wt. % Mn, 0.01-1.0 wt. % Si, 0.01-0.5 wt. % C, wherein the stainless steel material exhibits an elongation of from 15% to 20%.