The forged rolls are used in wide cold strip mills of 2Hi, 4Hi, 6Hi reversing reduction mill and tandem mills, double reduction mills as well as temper mills, and skin pass mills. The following table gives a general overview of our main grades for rolls, and all kinds of materials are in the ESR quality.
Type
Main
Material
Hardness
Hardness
Uniformity
Depth
of hardness
Size
Work Roll
9Cr2Mo(2% Cr)
85-102 HSD
3HSD
8~15mm
¢200-600mm
MC3(3% Cr)
85-102HSD
3HSD
15-30mm
¢200-1000mm
MC5(5% Cr)
85-102HSD
3HSD
20-40mm
¢300-1000mm
Intermediate Roll
9Cr2Mo(2% Cr)
60-80 HSD
3HSD
10~25mm
¢200-600mm
MC3(3% Cr)
70-85 HSD
3HSD
15-35mm
¢200-1000mm
MC5(5% Cr)
70-85 HSD
3HSD
20-50mm
¢300-1000mm
Forged WR & IMR Composition and Performance Properties