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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 9193011 B1

PDFFull Text
Date of Patent:
Nov. 24, 2015

Filed:

Mar. 16, 2009

Iron-chromium based brazing filler metal

Applicants:

Owe Mårs, Höganäs, SE;

Ulrika Persson, Helsingborg, SE;

Inventors:

Owe Mårs, Höganäs, SE;

Ulrika Persson, Helsingborg, SE;

Assignee:

HOGANAS AB (PUBL), Hoganas, SE;

Attorney:

Buchanan Ingersoll & Rooney P.C.

Primary Examiner:

Kaj K Olsen

Assistant Examiner:

Alexander Polyansky

Int. Cl.
CPC ...
B32B 15/00 (2006.01); C22C 38/42 (2006.01); C22C 30/02 (2006.01); B23K 35/02 (2006.01); B23K 35/30 (2006.01); C22C 33/02 (2006.01); C22C 38/20 (2006.01); C22C 38/34 (2006.01); C22C 38/38 (2006.01); C22C 38/58 (2006.01); B23K 1/00 (2006.01);
U.S. Cl.
CPC ...
B23K 35/0244 (2013.01); B23K 35/02 (2013.01); B23K 35/025 (2013.01); B23K 35/30 (2013.01); B23K 35/3086 (2013.01); C22C 30/02 (2013.01); C22C 33/0285 (2013.01); C22C 38/20 (2013.01); C22C 38/34 (2013.01); C22C 38/38 (2013.01); C22C 38/42 (2013.01); C22C 38/58 (2013.01); B22F 2998/00 (2013.01); B23K 2201/14 (2013.01); B23K 2203/04 (2013.01); Y10T 428/12493 (2015.01);
Abstract

An iron-chromium based brazing filler metal is provided which exhibits an excellent wetting behavior on a stainless steel base material. The brazing filler metal produces a brazed joint which exhibits high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder according to the invention comprises: between 11 and 35 wt % chromium, between 0 and 30 wt % nickel, between 2 and 20 wt % copper, between 2 and 6 wt % silicon, between 4 and 8 wt % phosporous, between 0-10 wt % manganese, and at least 20 wt % iron.

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