HOT ROLLING ROLL EXCELLENT IN ABRASION RESISTANCE AND REDUCED IN SEGREGATION OF CARBIDE

Title:

HOT ROLLING ROLL EXCELLENT IN ABRASION RESISTANCE AND REDUCED IN SEGREGATION OF CARBIDE

Document Type and Number:

WIPO Patent Application WO/1997/048505

Kind Code:

A1

Abstract:

A high-performance, hot-rolling, high-speed steel roll which possesses excellent abrasion resistance and, at the same time, when produced by an economically advantageous centrifugal casting method, does not cause segregation of any carbide. The hot rolling roll has an outer layer comprising, on a weight basis, C: 2.4 to 2.9 %, Si: not more than 1 %, Mn: not more than 1 %, Cr: 12 to 18 %, Mo: 3 to 9 %, V: 3 to 8 %, and Nb: 0.5 to 4 %, the above constituents simultaneously satisfying requirements represented by the following formulae: (1) 0.27 Mo (%)/Cr (%) 0.7 and (2) C (%) + 0.2.Cr (%) 6.2, with the balance consisting of Fe and unavoidable impurities.

Inventors:

ICHINO KENJI (JP)
KOSEKI TOMOYA (JP)
TOYOOKA TAKAAKI (JP)
YUDA KOHJI (JP)

Application Number:

PCT/JP1997/002062

Publication Date:

December 24, 1997

Filing Date:

June 16, 1997

Export Citation:

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Assignee:

KAWASAKI STEEL CO (JP)
ICHINO KENJI (JP)
KOSEKI TOMOYA (JP)
TOYOOKA TAKAAKI (JP)
YUDA KOHJI (JP)

International Classes:

B21B27/00; B32B15/01; (IPC1-7): B21B27/00

Foreign References:

JPH05271867A	1993-10-19
JPH06346188A	1994-12-20
JPH0820837A	1996-01-23

Other References: