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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.:

US 11306378 B1

PDFFull Text
Date of Patent:
Apr. 19, 2022

Filed:

Feb. 14, 2019

Duplex stainless steel

Applicant:

Sandvik Intellectual Property Ab, Sandviken, SE;

Inventors:

Tomas Antonsson, Sandviken, SE;

Lars Nylöf, Gävle, SE;

Assignee:

Sandvik Intellectual Property AB, Sandviken, SE;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Jie Yang

Int. Cl.
CPC ...
C22C 38/58 (2006.01); C21D 8/02 (2006.01); C21D 8/06 (2006.01); C21D 8/10 (2006.01); C21D 9/08 (2006.01); C21D 9/46 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/065 (2013.01); C21D 8/105 (2013.01); C21D 9/08 (2013.01); C21D 9/46 (2013.01); C21D 9/525 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01);
Abstract

The present disclosure relates to a duplex stainless steel comprising in weight % (wt %): C less than 0.03; Si less than 0.60; Mn 0.40 to 2.00; P less than 0.04; S less than or equal to 0.01; Cr more than 30.00 to 33.00; Ni 6.00 to 10.00; Mo 1.30 to 2.90; N 0.15 to 0.28; Cu 0.60 to 2.20; Al less than 0.05; balance Fe and unavoidable impurities. The present disclosure also relates to a component or a construction material comprising the duplex stainless steel. Additionally, the present disclosure also relates to a process for manufacturing a component comprising said duplex stainless steel.

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