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:
Jan. 02, 2018
Filed:
May. 29, 2015
Outokumpu Stainless Aktiebolag, Stockholm, SE;
Siv Liljas, Ekero, SE;
Elisabeth Alfonsson, Avesta, SE;
Jun Wang, Scottsdale, AZ (US);
Mats Liljas, Avesta, SE;
Per Johansson, Avesta, SE;
OUTOKUMPU STAINLESS AKTIEBOLAG, Stockholm, SE;
Abstract
A ferritic-austenitic stainless steel having a microstructure containing 35-65 vol-% ferrite and 35-65 vol-% austenite has a chemical composition which contains in weight-%: 0.005-0.07 C, 0.1-2.0 Si, 3-8 Mn, 19-23 Cr, 0.5-1.7 Ni, optionally Mo and/or W in a total amount of max 1.0 (Mo+W/2), optionally Cu up to max 1.0 Cu, 0.15-0.30 N, balance iron and impurities. The following conditions apply for the chromium and nickel equivalents: 20<Cr<24.5, 10<Ni, where Cr=Cr+1.5 Si+Mo+2 Ti+0.5 Nb, and Ni=Ni+0.5 Mn+30 (C+N)+0.5 (Cu+Co).