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:
Jun. 26, 2012
Filed:
Aug. 11, 2011
Katsuhiko Kikuchi, Sendai, JP;
Kunikazu Tomita, Sendai, JP;
Yutaka Tamai, Sendai, JP;
Kazuaki Hattori, Sendai, JP;
Kanji Inoue, Yokohama, JP;
Akira Tange, Yokohama, JP;
Norihiko Mori, Yokohama, JP;
Yurika Goto, Yokohama, JP;
Kiyoshi Kurimoto, Yokohama, JP;
Katsuhiko Kikuchi, Sendai, JP;
Kunikazu Tomita, Sendai, JP;
Yutaka Tamai, Sendai, JP;
Kazuaki Hattori, Sendai, JP;
Kanji Inoue, Yokohama, JP;
Akira Tange, Yokohama, JP;
Norihiko Mori, Yokohama, JP;
Yurika Goto, Yokohama, JP;
Kiyoshi Kurimoto, Yokohama, JP;
NHK Spring Co., Ltd., Yokohama-shi, JP;
JFE Bars & Shapes Corporation, Tokyo, JP;
Abstract
According to one embodiment, a high-strength stabilizer steel for vehicles having excellent corrosion resistance and low-temperature toughness, containing 0.07 to 0.20% C, more than 0.6% and 1.5% or less Si, 1 to 3% Mn, 0.1 to 1.0% Cr, 0.005 to 0.080% sAl, 0.005 to 0.060% Ti, 0.005 to 0.060% Nb, 0.070% or less Ti+Nb, 150 ppm or less N, 0.035% or less P, 0.035% or less S, 0.01 to 1.00% Cu, 0.01 to 1.00% Ni, the remainder being Fe, and unavoidable impurities, wherein a structure before molding a stabilizer is any one of a bainite, a martensite, and a mixed structure of bainite/martensite and an original austenitic crystal grain size number after a heat treatment of the stabilizer is Gh 9 or more.