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:
Feb. 23, 2016
Filed:
Nov. 07, 2006
Takuya Kochi, Kobe, JP;
Shogo Murakami, Kobe, JP;
Shoji Miyazaki, Kobe, JP;
Ken Ishida, Kobe, JP;
Masao Toyama, Kobe, JP;
Fujio Koizumi, Kobe, JP;
Takuya Kochi, Kobe, JP;
Shogo Murakami, Kobe, JP;
Shoji Miyazaki, Kobe, JP;
Ken Ishida, Kobe, JP;
Masao Toyama, Kobe, JP;
Fujio Koizumi, Kobe, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
A hot-rolled wire rod excelling in wire drawability is provided, in which breakage can be suppressed even in heavy work from a large diameter. A hot-rolled wire rod contains C: 0.35 to 0.65% (percent by mass, hereinafter expressed as well), Si: 1.4 to 3.0%, Mn: 0.10 to 1.0%, Cr: 0.1 to 2.0%, P: 0.025% or less (exclusive of 0%), S: 0.025% or less (exclusive of 0%), N: 0.006% or less (exclusive of 0%), Al: 0.1% or less (exclusive of 0%), and O: 0.0030% or less (exclusive of 0%), with the remnant consisting of Fe and inevitable impurities; wherein the content of hydrogen in steel is 2.50 ppm (ppm by mass, hereinafter expressed as well) or less, and hardness (HV) is 460×Cor less (Cindicates the content of C (percent by mass) in a position of depth of D/4 (D: diameter of the wire rod)).