Title:
STEEL WIRE FOR MACHINE STRUCTURAL COMPONENT AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/210126
Kind Code:
A1
Abstract:
A steel wire for a machine structural component which contains predetermined contents of C, Si, Mn, P, S, Al, Cr, and N, respectively, and the balance iron and inevitable impurities, wherein when the total content (mass%) of Cr and Mn in cementite in a metallographic structure is expressed by {Cr + Mn}, the total content (mass%) of Cr and Mn in the steel by [Cr + Mn], and the content (mass%) of C in the steel by [C], concentration ratio {Cr + Mn}/[Cr + Mn] is (0.5 [C] + 0.040) or greater, and further, the average equivalent circle diameter of the total cementite is (1.668 - 2.13 [C]) µm to (1.863 - 2.13 [C]) µm.
Inventors:
MATSUMOTO YOSUKE
IKEDA KENSHI
KOCHI TAKUYA
SAKATA MASAYUKI
UCHIDA TATSUNORI
YAMASHITA KOJI
INOUE YUTA
IKEDA KENSHI
KOCHI TAKUYA
SAKATA MASAYUKI
UCHIDA TATSUNORI
YAMASHITA KOJI
INOUE YUTA
Application Number:
PCT/JP2022/013281
Publication Date:
October 06, 2022
Filing Date:
March 22, 2022
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
C22C38/00; C21D1/32; C21D8/06; C21D9/52; C22C38/60
Domestic Patent References:
| WO2016148037A1 | 2016-09-22 |
Foreign References:
| JP2000073137A | 2000-03-07 | |||
| JP2006225701A | 2006-08-31 | |||
| JP2013147728A | 2013-08-01 | |||
| JP2015168882A | 2015-09-28 |
Attorney, Agent or Firm:
YAMAO, Norihito (JP)
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