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:
May. 11, 2021
Filed:
Mar. 21, 2017
Aperam, Luxembourg, LU;
Pierre-Olivier Santacreu, Isbergues, FR;
Christophe Cazes, Versailles, FR;
Guillaume Badinier, Lille, FR;
Jean-Benoit Moreau, Lille, FR;
APERAM, Luxembourg, LU;
Abstract
A method for manufacturing a martensitic stainless steel part, according to which a stainless steel sheet is prepared with the following composition: 0.005%≤C≤0.3%; 0.2%≤Mn≤2.0%; traces≤Si≤1.0%; traces≤S≤0.01%; traces≤P≤0.04%; 10.5%≤Cr≤17.0%; traces≤Ni≤4.0%; traces≤Mo≤2.0%; Mo+2×W≤2.0%; traces≤Cu≤3%; traces≤Ti≤0.5%; traces≤Al≤0.2%; traces≤O≤0.04%; 0.05%≤Nb≤1.0%; 0.05%≤Nb+Ta≤1.0%; 0.25%≤(Nb+Ta)/(C+N)≤8; traces≤V≤0.3%; traces≤Co≤0.5%; traces≤Cu+Ni+Co≤5.0%; traces≤Sn≤0.05%; traces≤B≤0.1%; traces≤Zr≤0.5%; Ti+V+Zr≤0.5%; traces≤H≤5 ppm; traces≤N≤0.2%; (Mn+Ni)≥(Cr−10.3−80×[(C+N)]); traces≤Ca≤0.002%; traces≤rare earth and/or Y≤0.06%; and the rest being iron and impurities.