Commonly used roll materials and applications
Commonly used roll materials and applications
| Roll type | Roll body Hardness HS | Roll neck tensile Strength /MPa | Main Applications | |
| Casting Steel Rolling Roll | Cast steel Semi-steel Graphite steel High Chrome Steel Tool steel (high carbon) High Speed Steel) | 30~70 35~70 35~60 70~80 | 500~1000 300~700 500~900 Note Note | Large and medium section opening and roughing mill stands, roughing mill stands for strip mills, support rolls. Large, medium and small section steel intermediate and finishing mill stands, sheet and strip steel work rolls. Large, medium and small section steel roughing mill stands. Roughing back stand, finishing front stand, cold rolled strip work rolls. Hot strip finishing mill stands, small or wire rod finishing mill stands. |
| Casting Iron Rolling Roll | Chilled cast iron Unbounded (limited) chilled cast iron Ductile cast iron High chromium cast iron Special cast iron | 55~85 55~85 35~80 60~95 | 150~220 150~220 300~700 Note Note | Plate, wire rod, profile and pipe finishing mill stands. Plate, wire rod, profile and pipe intermediate and finishing mill stands, plate and strip steel finishing mill stands. Rough and medium rolling mill stands for profiles, wire rod and tubes. Small section steel and wire rod mill finishing stands, strip pre-finishing stands. Small, wire rod and tube pre-finishing, finishing |
| Powder Powder Metallurgy Gold Rolling Roll | Tungsten Carbide Tool Steel | 80~90 | Note Note | Small, wire rod finishing mill stands, cold rolled small steel. Small and wire rod finishing mill stands, strip finishing mill stands. |
| Forging Steel Rolling Roll | Hot rolls Cold rolls Support rolls Forged semi-steel and white iron | 35~60 75~105 40~70 | 500~1100 700~1400 700~1400 500~1000 | Open billets, large roughing mill stands, plate steel roughing mill stands. Cold rolled strip work rolls, profile and welded pipe forming rolls. Cold and hot strip mills. Large, medium and small rough, medium and finishing mill stands. |