ROLLING ROLL - KOGI CORP

Title:

ROLLING ROLL

Document Type and Number:

Japanese Patent JP2000280009

Kind Code:

A

Abstract:

To obtain rolling rolls having good wear resistance, seizure resistance, and surface roughening resistance, which can be preferably used for hot rolling.

A material to form an outer layer portion of the rolling roll contains, in weight %, 2.0-3.8% C, 1.0-3.5% Si, 0.1-2.0% Mn, 0.5-10.0% Ni, 7.0-15.0% Cr, 6.0% or less Mo, 6.0% or less W, less than 1.0% V, and 10.0% or less (including 0%) Co, and the balance substantially composed of Fe, and the formulae C-(0.7 V+0.3Mo+0.2W)≥1.0 and 2.0≤Ni+Co<10.0 will be satisfied. Also, crystallized graphite is dispersed in the structure.

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Inventors:

NISHIKAWA SUSUMU
HIRATA KATSUMI
MAEKAWA TOSHIRO
TSUJI RYUJI

Application Number:

JP9192499A

Publication Date:

October 10, 2000

Filing Date:

March 31, 1999

Export Citation:

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Assignee:

KOGI CORP

International Classes:

B22D19/16; B21B27/00; C21D9/38; C22C38/00; C22C38/58; (IPC1-7): B21B27/00; B22D19/16; C22C38/00; C22C38/58

Attorney, Agent or Firm:

Murao Rikio

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