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:
Oct. 14, 2014
Filed:
Nov. 04, 2010
Applicants:
Seiki Nishida, Tokyo, JP;
Nariyasu Muroga, Tokyo, JP;
Hitoshi Demachi, Tokyo, JP;
Inventors:
Assignee:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/00 (2006.01); C21D 8/06 (2006.01); C22C 38/04 (2006.01); C22C 38/18 (2006.01); C22C 38/02 (2006.01);
U.S. Cl.
CPC ...
C22C 38/02 (2013.01); C21D 2211/009 (2013.01); C21D 8/06 (2013.01); C22C 38/04 (2013.01); C22C 38/18 (2013.01); C21D 2211/005 (2013.01);
Abstract
Provided is a wire rod contains, in mass %: C: 0.6 to 1.1%; Si: 0.1 to 0.5%; Mn: 0.2 to 0.6%; S: 0.004 to 0.015%; and, Cr: 0.02 to less than 0.05%; with a balance including Fe and inevitable impurities in which P is limited to 0.02% by mass or lower and Al is limited to 0.003% by mass or lower; the wire rod has a pearlite in a surface thereof; and, the wire rod has, in a peripheral portion in a cross section thereof, a {110} crystal plane of ferrite in the pearlite, an accumulation degree of the crystal plane being 1.2 or more.