Title:
HIGH NONMAGNETIC Mn STEEL FOR SUPERCONDUCTING MAGNET HAVING EXCELLENT HOT WORKABILITY AND HEATING EMBRITTLEMENT RESISTANCE AFTER HEAT TREATMENT FOR PRODUCING SUPERCONDUCTING MAGNET
Document Type and Number:
Japanese Patent JP2003155542
Kind Code:
A
Abstract:
To provide high nonmagnetic Mn steel for a superconducting magnet which has remarkably improved hot workability in hot forging or hot extrusion, and has heating embrittlement resistance after heat treatment for producing the superconducting magnet.
The high nonmagnetic Mn steel for a superconducting magnet contains, by weight, ≤0.10% C, ≤0.5% Si, 10 to 30% Mn, 2 to 15% Ni, 5 to 25% Cr, ≤2% Mo, 0.001 to 0.01% B and 0.1 to 0.3% N, and the balance Fe with inevitable impurities.
Inventors:
NAKAJIMA HIDEO
HAMADA KAZUYA
OKUNO KIYOSHI
FUJITSUNA NORIYUKI
MATSUMOTO OSAMU
MIYAGAWA MUTSUHIRO
HAMADA KAZUYA
OKUNO KIYOSHI
FUJITSUNA NORIYUKI
MATSUMOTO OSAMU
MIYAGAWA MUTSUHIRO
Application Number:
JP2001356034A
Publication Date:
May 30, 2003
Filing Date:
November 21, 2001
Export Citation:
Assignee:
JAPAN ATOMIC ENERGY RES INST
KOBE STEEL LTD
KOBE STEEL LTD
International Classes:
C22C38/00; C22C38/44; C22C38/54; C22C38/58; H01F6/00; (IPC1-7): C22C38/00; C22C38/58
Attorney, Agent or Firm:
Yoshiyuki Kaji (1 person outside)