Forged work roll used for cold rolling mill material:9Cr2Mo, 86CrMoV7, 42CrMo4,Cr2 Cr3 Cr5 Diameter:Max2000MM, length:max6000 Technology parameter of cold forged work rollA,Max Diameter of roll body¦2000mmB,Materials¦86CrMoV7,9Cr2Mo,9Cr2W,MC3(3%Cr),MC5(5%Cr) of GB/T13314-97, Semi- High Speed Steel etc..C,Work hardness¦Surface hardness of work roll body (HSD)¦Order No.Surface hardness of roll ...