Title:
HIGH-FREQUENCY QUENCHING STEEL AND CRANK SHAFT MANUFACTURED BY USING THE SAME
Document Type and Number:
Japanese Patent JP2013028840
Kind Code:
A
Abstract:
To provide high-frequency quenching steel excellent in quenching crack resistance.
The high-frequency quenching steel in this embodiment contains, by mass, C: 0.35 to 0.6%, Si: 0.01% or higher and lower than 0.40%, Mn: 1.0 to 2.0%, S: >0.010% and 0.05% or lower, Cr: 0.01 to 0.5%, AI: 0.001 to 0.05%, N: Ti/3.4 to 0.02%, Ti: 0.005 to 0.05%, and a balance comprising Fe and an inevitable impurities, wherein the following formula (1) is satisfied: 2S-3Ti<0.040 (1). Here, each element in the formula (1) is replaced with a content (mass%) of the corresponding element.
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Inventors:
KIM KI-SUNG
TAIRA HIROAKI
KONO YOSHIORI
WATARI KOJI
TAIRA HIROAKI
KONO YOSHIORI
WATARI KOJI
Application Number:
JP2011165899A
Publication Date:
February 07, 2013
Filing Date:
July 28, 2011
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
C22C38/00; C22C38/60; F16C3/06; C21D1/18; C21D9/30
Domestic Patent References:
| JPH04141521A | 1992-05-15 | |||
| JP2011026641A | 2011-02-10 | |||
| JP2010285677A | 2010-12-24 |
Attorney, Agent or Firm:
Hidetoshi Ueba
Takao Matsuyama
Go Sakane
Kawakami Keiko
Tadashi Takezoe
Takao Matsuyama
Go Sakane
Kawakami Keiko
Tadashi Takezoe