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.

Date of Patent:
Jul. 21, 2015

Filed:

Jun. 19, 2009
Applicants:

Tetsuo Soshiroda, Kakogawa, JP;

Reiichi Suzuki, Fujisawa, JP;

Kei Yamazaki, Fujisawa, JP;

Inventors:

Tetsuo Soshiroda, Kakogawa, JP;

Reiichi Suzuki, Fujisawa, JP;

Kei Yamazaki, Fujisawa, JP;

Assignee:

Kobe Steel, Ltd., Kobe-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01); C22C 38/00 (2006.01); C22C 33/00 (2006.01); C21D 6/00 (2006.01); C21D 8/04 (2006.01); C21D 9/46 (2006.01); B23K 35/02 (2006.01); B23K 35/30 (2006.01); C21C 7/10 (2006.01);
U.S. Cl.
CPC ...
C22C 38/02 (2013.01); C21D 6/008 (2013.01); C21D 8/0426 (2013.01); C21D 9/46 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); B23K 35/0261 (2013.01); B23K 35/3073 (2013.01); B23K 2201/16 (2013.01); C21C 7/10 (2013.01); Y10T 428/265 (2015.01);
Abstract

Disclosed is a steel sheet, containing: Si: 0.20-2% (the term '%' herein means 'mass %', the same is true hereinbelow), Mn: 1-2.5%, a total mass of Si and Mn being 1.5% or more, and O: 0.002% or less (exclusive of 0%), C: 0.02-0.25%, P: 0.1% or less (exclusive of 0%), S: 0.05% or less (exclusive of 0%), Al—0.02-0.2%, and N: 0.0015-0.015%. The steel sheet of the invention can be advantageously used for forming wide beads even in high-speed arc welding of 100 cm/min or higher.


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