Audited Supplier
work roll
Steel Rolling Equipment
ISO
Customer Request
as Per Drawing
CAMET
Steel Rack
ISO
China
Product Description
Cold rolled steel work roll
Properties
Forged steel rolls are treated with dual frequency heating machine and cold treatment equipment. The whole procedure is computer-controlled so as to provide rolls with a deep hardened layer, high and homogeneous hardness, superior wear ability and sufficient resistance to accident. We produce forged roll for rolling mills, specialized making kinds of steel forging and casting mill roll and back up roll.
Forged steel rolls are treated with dual frequency heating machine and cold treatment equipment. The whole procedure is computer-controlled so as to provide rolls with a deep hardened layer, high and homogeneous hardness, superior wear ability and sufficient resistance to accident. We produce forged roll for rolling mills, specialized making kinds of steel forging and casting mill roll and back up roll.
Chemical Analysis
| Material | C | Si | Mn | Cr | Mo | V | Ni | S | P |
| 9Cr2Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.40 | 1.70-2.10 | 0.20-0.40 | -- | ≤0.30 | ≤0.030 | ≤0.030 |
| 86CrMoV7 | 0.80-0.90 | 0.15-0.40 | 0.30-0.50 | 1.80-2.40 | 0.20-0.40 | 0.05-0.15 | -- | ≤0.030 | ≤0.030 |
| 9Cr3Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.35 | 2.50-3.50 | 0.20-0.30 | -- | ≤0.30 | ≤0.030 | ≤0.030 |
| MC3 | 0.82-0.90 | 0.60-0.90 | 0.20-0.45 | 2.80-3.20 | 0.40-0.60 | 0.05-0.15 | 0.60-0.80 | ≤0.020 | ≤0.015 |
| MC5 | 0.80-0.90 | 0.30-0.55 | 0.20-0.50 | 4.80-5.40 | 0.20-0.40 | 0.05-0.12 | 0.30-0.50 | ≤0.020 | ≤0.015 |
| 70Cr3Mo | 0.60-0.75 | 0.40-0.70 | 0.50-0.90 | 2.00-3.50 | 0.25-0.60 | -- | ≤0.60 | ≤0.030 | ≤0.030 |
| 45Cr5NiMoV | 0.48-0.55 | 0.30-0.55 | 0.20-0.50 | 4.90-5.40 | 0.30-0.50 | 0.10-0.20 | 0.30-0.50 | ≤0.020 | ≤0.015 |
Physical Properties
| Designation of rolls | Hardness (HSD) | Depth of hardness (mm) | Hardness deviation (HSD) |
| Work Roll | 70-104 | 10-50 | ±1 |
| Intermediate Roll | 70-85 | 10-50 | ±1 |
| Sendzimir Work roll | 60-66HRC | ≥10 | ±1 |
| Sendzimir Intermediate Roll | 55-60HRC | ≥15 | ±1 |
| Back-up Roll | 60-80 | 10-75 | ±1.5 |
Application
| Designation of rolls | Application | Depth of hardness (mm) |
| 9Cr2Mo | All kinds of rolls | ≥10 |
| 86CrMoV7 | All kinds of rolls | ≥12 |
| 9Cr3Mo | Work rolls & intermediate rolls | ≥15 |
| MC3 | Work rolls & intermediate rolls | ≥20 |
| MC5 | Work rolls & intermediate rolls | ≥25 |
| 70Cr3Mo | Work rolls & back-up rolls | ≥50 |
| 45Cr5NiMoV | Back-up rolls | ≥75 |
