forged roll

Technology parameter of cold forged work roll A,Max Diameter of roll body¦2000mm B,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 body Usage 1 ≥95 Skin rolling machine base, working roll of finish rolling machine base 2 90-96 Metal plate, cold rolling work roll of strips 3 75-90 Metal plate, rough rolling work roll of strips Surface hardness of work roll neck (HSD)¦ Order Number surface hardness of roll neck 1 30-50 2 50-65 3 75-90 Reasonable Soft width of two sides of roll body (MM) Length of roll body ≤300 301-600 601-1000 1001-2000 ≥2000 Reasonable Soft width of each side of roll body ≤ 30 50 60 65 80 D,Effective hardening depthof work rolls d-1,Classifications according to diameter of roll body¦ order diameter of roll body (mm) hardness of roll body surface (HSD) Effective hardening depth (≥mm ) 1 ≤300 ≥95 6 90-96 8 75-90 10 2 301-500 ≥95 7 90-96 12 75-90 14 3 ≥500 ≥95 8 90-96 13 75-90 15 d-2,Classifications according to materials¦ Order number Material Depth of Hardness (mm) 1 Series-2%Cr 12-18 2 Series MC3-3%Cr 18-35 3 Series MC5-5%Cr 20-40