Title:
STEEL FOR FORGING, AND FORGING OBTAINED BY USING THE SAME
Document Type and Number:
Japanese Patent JP2004225128
Kind Code:
A
Abstract:
To provide a steel for forging in which inclusions capable of exhibiting excellent fatigue properties are refined.
The steel for forging has a composition satisfying, by mass, ≤0.007% (exclusive of 0%) S, ≥5 ppm Ca, 5 ppm to 0.006% Mg, 0.015 to 0.04% Al and ≤15 ppm (exclusive of 0%) O, and also satisfying inequality (1): 35×[Ca]≤40×[Mg]+1,200 {wherein, [Ca] denotes the Ca content (mass ppm), and [Mg] denotes the Mg content (mass ppm)}.
Inventors:
KAGAWA TAKANORI
SAKAMOTO KOICHI
SAKAMOTO KOICHI
Application Number:
JP2003016108A
Publication Date:
August 12, 2004
Filing Date:
January 24, 2003
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B21J5/00; B21K1/08; C22C38/00; C22C38/06; C22C38/60; (IPC1-7): C22C38/00; B21J5/00; B21K1/08; C22C38/06; C22C38/60
Attorney, Agent or Firm:
Etsushi Kotani
Kyuichi Ueki
Kyuichi Ueki
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