... Material for cold forged roller :intermediate roller : 9Cr2Mo, Cr2,Cr3,Cr5Backup roller: Cr2,Cr3, Cr5, 60CrMo, 60CrMnMoSpecifications for roller :Work roll, intermediate roll diameter ... max.Φ610 mmlength max.6000 mmgross weight max.10Tnet weight max.6Tmax. diameter Φ800mmmax. length 6000mmBack-up roll: diameter ...