Title:
機械構造用鋼およびその切削方法
Document Type and Number:
Japanese Patent JP6801542
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a steel for machine structural use having good mechanical properties and a good tool life in intermittent cutting, and a cutting method therefor.SOLUTION: A steel for machine structural use contains, in mass%, C: 0.30-0.72%, Si: 0.73-1.40%, Mn: 0.40-1.0%, Cr: 0.065-0.65%, P: 0.001-0.045%, S: 0.001-0.023%, N: 0.0036-0.0100%, and Al: 0.001-less than 0.040%, and further contains one or more selected from Ti: 0-0.500%, Nb: 0-0.500%, and V: 0-0.500%, with the balance being Fe and inevitable impurities, satisfying 0<[Ti%]+[Nb%]+[V%]≤0.500 and 42.5<66[Si%]-3[Mn%]-5[Cr%]<90.9.SELECTED DRAWING: Figure 1
Inventors:
Toshiharu Maso
Application Number:
JP2017054586A
Publication Date:
December 16, 2020
Filing Date:
March 21, 2017
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22C38/00; B23C3/00; B23C5/16; B23F21/00; C22C38/28; C22C38/54
Domestic Patent References:
| JP2015175023A | ||||
| JP2008075177A | ||||
| JP2014015664A | ||||
| JP2002346812A | ||||
| JP2017019094A |
Attorney, Agent or Firm:
Koji Hagiwara
Tetsuo Kanamoto
Tetsuo Kanamoto