Forged steel rolls for hot mills are manufactured from forged steel blanks with advanced heat treatment processes to achieve stable barrel hardness and appropriate hardening depth. These rolls offer excellent wear resistance, high toughness, and strong biting capability under demanding rolling conditions.
Different forged roll grades are designed according to different mill applications and operating conditions. The optimized alloy composition and heat treatment process ensure reliable performance, stable hardness distribution, and long service life for hot rolling operations.
Chemical Composition
| Symbol | C | Si | Mn | Cr | Ni | Mo | V | W |
| FSH-1 | 0.55-0.65 | 0.17-0.40 | 0.50-1.00 | 0.50-1.20 | ≤0.25 | 0.20-0.40 | - | - |
| FSH-2 | 0.55-0.65 | 0.20-0.40 | 0.60-1.00 | - | 0.10-0.30 | 0.10-0.30 | - | - |
| FSH-3 | 0.45-0.65 | 0.20-0.50 | 0.50-0.90 | 3.00-3.60 | - | 0.40-1.20 | 0.10-0.35 | - |
| FSH-4 | 0.60-0.80 | 0.30-0.80 | 0.40-0.90 | 2.50-3.50 | 0.40-0.50 | 0.20-0.60 | - | - |
| FSH-5 | 0.30-0.40 | ≤0.40 | ≤0.40 | 2.20-2.70 | - | - | 0.20-0.50 | 7.50-9.00 |
| FSH-6 | 0.32-0.43 | 0.80-1.20 | 0.20-0.50 | 4.50-5.50 | - | 1.00-1.60 | 0.30-0.60 | - |
| FSH-7 | 0.80-0.95 | 0.25-0.45 | 0.20-0.55 | 1.70-2.40 | - | 0.20-0.40 | ≤0.15 | - |
Barrel Hardness (HS)
| Hardness | FSH-1 | FSH-2 | FSH-3 | FSH-4 | FSH-5 | FSH-6 | FSH-7 |
| Barrel | 34-40 | 35-45 | 50-60 | 34-45 | 65-76 | 50-58 | 69-76 |
| Surface | 55-75 | 50-60 | 60-70 | 60-75 | 80-87 | 65-71 | 80-87 |
Product Features
- Excellent wear resistance and stable hardness performance.
- High toughness and strong biting capability for hot rolling applications.
- Different forged grades available for various rolling mill requirements.
- Suitable for plate mills, tube mills, planetary mills, and non-ferrous rolling lines.
- Advanced heat treatment technology ensures reliable service life.
Recommended Applications
| Mill Type | Roll Type | Forged Roll for Hot Mills | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||
| Plate mills | Primary rolls | ● | ● | |||||
| Planetary mills | Work rolls | ● | ||||||
| Feed rolls | ● | |||||||
| Back up rolls | ● | |||||||
| Welding tube mills | Forming, sizing and vertical rolls | ● | ||||||
| Seamless tube mills | Extruding rolls | ● | ● | |||||
| Straightening rolls | ● | |||||||
| Non-ferrous plate and strip mills | Piercing rolls | ● | ||||||
| Pushing point rolls | ● | |||||||
| Work rolls | ● | ● | ||||||
| Back up rolls | ● | ● | ||||||