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:
Nov. 04, 2014
Filed:
May. 27, 2009
Hiroshige Inoue, Tokyo, JP;
Manabu Mizumoto, Tokyo, JP;
Takashi Namekata, Tokyo, JP;
Yusuke Oikawa, Tokyo, JP;
Hiroshige Inoue, Tokyo, JP;
Manabu Mizumoto, Tokyo, JP;
Takashi Namekata, Tokyo, JP;
Yusuke Oikawa, Tokyo, JP;
Abstract
The present invention provides flux cored wire for welding duplex stainless steel which refines the solidified crystal grains for obtaining weld metal superior in toughness and ductility, characterized by containing, as the chemical ingredients included in the steel sheath and flux, by mass % with respect to the mass of the wire as a whole, C: 0.001 to 0.1%, Si: 0.01 to 1.0%, Mn: 2.0 to 6.0%, Cr: 17.0 to 27.0%, Ni: 1.0 to 10.0%, Mo: 0.1 to 3.0%, Al: 0.002 to 0.05%, Mg: 0.0005 to 0.01%, Ti: 0.001 to 0.5%, and N: 0.10 to 0.30%, further limiting P to 0.03% or less and S to 0.01% or less, satisfying 0.73×Cr equivalents−Ni equivalents≧4.0 and Ti (mass %)×N (mass %)≧0.0004, and having a balance of iron and unavoidable impurities.