Title:
HIGH Mn STEEL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/168172
Kind Code:
A1
Abstract:
Provided is a high Mn steel which has high strength, while exhibiting excellent fatigue resistance characteristics and excellent toughness at low temperatures. This high Mn steel is configured to have a component composition that contains 0.10-0.70% of C, 0.05-1.0% of Si, 20-30% of Mn, 0.030% or less of P, 0.0070% or less of S, 0.01-0.07% of Al, 0.5-7.0% of Cr, 0.040-0.10% of N, 0.0050% or less of O, 0.005% or less of Ti, 0.005% or less of Nb, less than 0.0010% of Mg and less than 0.0010% of REM, while satisfying Ti/N ≤ 0.10, with the balance made up of Fe and unavoidable impurities.
Inventors:
NAKASHIMA KOICHI (JP)
UEDA KEIJI (JP)
IZUMI DAICHI (JP)
IGI SATOSHI (JP)
ONO TOMOHIRO (JP)
UEDA KEIJI (JP)
IZUMI DAICHI (JP)
IGI SATOSHI (JP)
ONO TOMOHIRO (JP)
Application Number:
PCT/JP2019/008176
Publication Date:
September 06, 2019
Filing Date:
March 01, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C22C38/38; C22C38/00; C22C38/58
Foreign References:
| JPS57152444A | 1982-09-20 | |||
| JP2016196703A | 2016-11-24 | |||
| JPS5896853A | 1983-06-09 | |||
| JP2007126715A | 2007-05-24 | |||
| JP2016084529A | 2016-05-19 | |||
| US20170349983A1 | 2017-12-07 | |||
| JP6460292B1 | 2019-01-30 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
Download PDF: