Title:
WIRE MATERIAL FOR STEEL WIRE, AND STEEL WIRE
Document Type and Number:
WIPO Patent Application WO/2016/002413
Kind Code:
A1
Abstract:
Provided is a wire material for steel wire, the wire material having excellent low cyclic fatigue characteristics and being useful as a raw material for high-strength steel wire for wire rope, PC steel wire, or the like. Also provided is a steel wire that can exhibit said characteristics. A wire material for steel wire according to the present invention contains, by mass%, 0.70%-1.3% of C, 0.1%-1.5% of Si, 0.1%-1.5% of Mn, 0.001%-0.006% of N, 0.001%-0.10% of Al, 0.02%-0.20% of Ti, 0.0005%-0.010% of B, 0%-0.030% of P, and 0%-0.030% of S, the remainder being iron and unavoidable impurities, the main phase being pearlite, the area ratio of proeutectoid ferrite being 1.0% or less, and the average thickness of the proeutectoid ferrite being 5 μm or less.
Inventors:
ISHIDA TOMONOBU
MASUDA TOMOKAZU
MASUDA TOMOKAZU
Application Number:
PCT/JP2015/065863
Publication Date:
January 07, 2016
Filing Date:
June 02, 2015
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
C22C38/00; C22C38/14; C22C38/54; C21D8/06; C21D9/52
Domestic Patent References:
| WO2008093466A1 | 2008-08-07 |
Foreign References:
| JP2013204069A | 2013-10-07 | |||
| JPH11199978A | 1999-07-27 | |||
| JP2002146479A | 2002-05-22 | |||
| JP2007039800A | 2007-02-15 | |||
| JP2005232549A | 2005-09-02 | |||
| JP2008133539A | 2008-06-12 |
Other References:
See also references of EP 3165625A4
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
Hisakazu Ueki (JP)
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