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:
Aug. 14, 2018
Filed:
Jun. 26, 2013
Outokumpu Oyj, Espoo, FI;
Bo Ivarsson, Avesta, SE;
Mirva Kujansuu, Tornio, FI;
Huiping Liu, Linköping, SE;
Fredrik Olsson, Avesta, SE;
Rachel Pettersson, Norrtälje, SE;
Pascale Sotto Vangeli, Avesta, SE;
Outokumpu Oyj, Helsinki, FI;
Abstract
The invention relates to a ferritic stainless steel having enhanced high temperature strength and good resistance to high cycle fatigue, creep and oxidation for use in high temperature service, for components such as automotive exhaust manifolds. The steel contains in weight % less than 0.03% carbon, 0.05-2% silicon, 0.5-2% manganese, 17-20% chromium, 0.5-2% molybdenum, less than 0.2% titanium, 0.3-1% niobium, 1-2% copper, less than 0.03% nitrogen, 0.001-0.005% boron, the rest of the chemical composition being iron and inevitable impurities occurring in stainless steels.