Title:
EXTERNAL LAYER MATERIAL FOR CENTRIFUGALLY CAST ROLL
Document Type and Number:
Japanese Patent JP3659031
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce an external layer material for a centrifugally cast roll small in the segregation of components or the like, having a low friction coefficient, excellent in crack resistance and wear resistance and moreover having high tensile strength.
SOLUTION: This external layer material for a centrifugally cast roll has a compsn. contg., by mass, 2.3 to 3.0% C, 2.0 to 3.0% Si, 0.1 to 2.0% Mn, 0.5 to 3.0% Cr, 1.5 to 5.0% Mo, 7.0 to 10.0% Ni, 1.0 to 5.0% V, 0.5 to 3.0% Nb, 0.0050 to 0.0800% B and 0.0050 to 0.0500% rare earth metals also satisfying 4.30-0.33Si-0.047Ni+0.0055 (Si+Ni)≤3.4, Mo/Cr≥1.0 and 0.2≤Nb/V≤1.0 and contains graphite as well.
Inventors:
Tomoya Ozeki
Kenji Ichino
Kenji Ichino
Application Number:
JP32271698A
Publication Date:
June 15, 2005
Filing Date:
November 12, 1998
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21B27/00; B22D13/02; C22C33/02; C22C37/00; C22C37/10; (IPC1-7): C22C37/00; B21B27/00; B22D13/02; C22C37/10
Domestic Patent References:
| JP6256889A | ||||
| JP6346141A | ||||
| JP10068041A | ||||
| JP58171552A | ||||
| JP11229072A | ||||
| JP5311318A |
Attorney, Agent or Firm:
Eiichi Kobayashi