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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.:

US 10799974 B1

PDFFull Text
Date of Patent:
Oct. 13, 2020

Filed:

Aug. 16, 2017

Electrodes for forming austenitic and duplex steel weld metal

Applicant:

Lincoln Global, Inc., Santa Fe Springs, CA (US);

Inventors:

Alexander Joseph Zaddach, Cleveland, OH (US);

Badri K. Narayanan, Highland Heights, OH (US);

Assignee:

LINCOLN GLOBAL, INC., Santa Fe Springs, CA (US);

Attorney:

Knobbe Martens

Primary Examiner:

Hung D Nguyen

Int. Cl.
CPC ...
B23K 35/34 (2006.01); B23K 9/16 (2006.01); C22C 38/02 (2006.01); C22C 38/48 (2006.01); C22C 38/44 (2006.01); B23K 35/02 (2006.01); C22C 38/26 (2006.01); B23K 35/40 (2006.01); C22C 38/50 (2006.01); C22C 38/38 (2006.01); C22C 38/52 (2006.01); B23K 35/30 (2006.01); C22C 38/28 (2006.01); C22C 38/30 (2006.01); C22C 38/40 (2006.01); C22C 38/58 (2006.01); B23K 9/23 (2006.01); C22C 38/42 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/46 (2006.01); B23K 9/173 (2006.01); B23K 35/22 (2006.01); B23K 103/04 (2006.01);
U.S. Cl.
CPC ...
B23K 9/164 (2013.01); B23K 9/173 (2013.01); B23K 9/23 (2013.01); B23K 35/0255 (2013.01); B23K 35/0261 (2013.01); B23K 35/0266 (2013.01); B23K 35/308 (2013.01); B23K 35/3026 (2013.01); B23K 35/3053 (2013.01); B23K 35/3066 (2013.01); B23K 35/3073 (2013.01); B23K 35/3086 (2013.01); B23K 35/34 (2013.01); B23K 35/404 (2013.01); B23K 35/406 (2013.01); C22C 38/02 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/30 (2013.01); C22C 38/38 (2013.01); C22C 38/40 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); C22C 38/58 (2013.01); B23K 2103/04 (2018.08); B23K 2103/05 (2018.08);
Abstract

The disclosed technology generally relates to consumable electrode wires and more particularly to consumable electrode wires having a core-shell structure, where the core comprises chromium. In one aspect, a welding wire comprises a sheath having a steel composition and a core surrounded by the sheath. The core comprises chromium (Cr) at a concentration between about 12 weight % and about 18 weight % on the basis of the total weight of the welding wire, manganese (Mn) at a concentration between about 12 weight % and about 18 weight % on the basis of the total weight of the welding wire, nickel (Ni) at a concentration between zero and about 5 weight % on the basis of the total weight of the welding wire, and carbon (C) at a concentration greater than zero weight %, wherein concentrations of Ni, C and Mn are such that [Ni]+30[C]+0.5[Mn] is less than about 12 weight %, wherein [Ni], [C], and [Mn] represent weight percentages of respective elements on the basis of the total weight of the welding wire. The disclosed technology also relates to welding methods and systems adapted for using the chromium-comprising electrode wires.

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