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:
Dec. 30, 2025
Filed:
Dec. 13, 2021
Applicant:
Aperam, Luxembourg, LU;
Inventors:
Assignee:
APERAM, Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/58 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C21D 2211/001 (2013.01);
Abstract
Austenitic stainless-steel made of steel having a composition in weight percentages, consisting of: traces≤C≤0.03%; 1.0%≤Mn≤2.0%; 0.8%≤Si≤2.0% %; preferentially 1.0%≤Si≤1.5%; traces≤Al≤0.06% %; traces≤P≤0.045%; traces≤S≤0.015%; 8.0%≤Ni≤12.0%; 17.5%≤Cr≤20.0%; 0.4%≤ Mo≤0.8%; traces≤Sn≤0.05%; traces≤Nb≤0.08%; traces≤V≤0.15%; traces≤Ti≤ 0.08%; traces≤Zr≤0.08%; traces≤Co≤1.0%; traces≤B≤0.01%; traces≤W+Mo≤0.8%; traces≤Pb≤0.03%; traces≤N≤0.1%; traces≤O≤0.01%; the rest being iron and impurities resulting from the production. Plates for heat exchangers, and chimney ducts, made of such steel.