High Chromium Iron roll
This type of rolling mill is made of high alloy material, with a structure of bainite and Chromium cobalt alloy, and the core is filled with ductile iron.
Parameter details
Chemical Composition%
| Model | Carbon | Silicon | Manganese | Chromium | Nickel | Molybdenum |
| HCrⅠ | 2.30-3.30 | 0.30-1.00 | 0.50-1.20 | 12.00-15.00 | 0.70-1.70 | 0.00-0.60 |
| HCrⅡ | 2.30-3.30 | 0.30-1.00 | 0.50-1.20 | 15.01-18.00 | 0.70-1.70 | 0.00-0.60 |
| HCrⅢ | 2.30-3.30 | 0.30-1.00 | 0.50-1.20 | 18.01-22.00 | 0.70-1.70 | 0.00-0.60 |
Advantages and Applications
| Model | hardnessHS | Tensile strengthMPa | Application |
| HCrⅠ | 60-75 | ≥350 | Vertical and flat rolls for hot-rolled strip mills, working rolls for medium and thick plate mills, roll sleeves for universal mills, and working rolls for cold-rolled tinplate mills |
| HCrⅡ | 65-80 | ≥350 | |
| HCrⅢ | 75-90 | ≥350 |