- Qingsongqiao, Qianhu Village, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province, China, 213000
- +86 18516265665 [email protected]
Zhrolls specializes in high-precision cold rolling mill rolls engineered to enhance the performance of rolling mills worldwide. With decades of expertise, we provide customized solutions that optimize steel production efficiency and reduce downtime. Our products are ideal for various mill types, including Single Stand Rolling Mills, Rolling Tandem Mills, Cluster Mills, and Skin Pass Mills.
Why Choose Zhrolls?
Durability & Performance: Our cold rolling mill rolls are made from high-grade materials like 9Cr2Mo, 9Cr3Mo, and other alloy steels, ensuring superior hardness and wear resistance. These rolls can withstand the most demanding conditions, helping your mill operate more efficiently and for longer periods without frequent replacements.
Tailored Solutions: Whether you need work rolls, intermediate rolls, or back-up rolls, Zhrolls offers customization to meet your specific operational needs. Our expert team works closely with clients to design and manufacture the perfect solution for your production processes.
Advanced Technology: Our cold rolling mill rolls are designed according to the latest standards (GB/T13314-2008, JB/T4120-2017), ensuring that they meet or exceed industry expectations for quality and precision.
Cost Efficiency: By improving the longevity and performance of your rolls, Zhrolls helps reduce downtime and maintenance costs, ensuring maximum productivity and cost-efficiency in your operations.
With Zhrolls, you gain access to advanced rolling mill technology and exceptional technical support. Contact us today to learn more about how our solutions can enhance your mill’s efficiency and durability.
| Work Rolls | Mill Type | Single Stand Rolling Mill, Rolling Tandem Mill, Cluster Mill, Skin Pass Mill |
| Material | 9Cr2Mo、9Cr3Mo、9Cr5Mo、W6Mo5Cr4V2（M2）、8Cr3MoV、8Cr5MoV、Cr12Mo1V1 (D2)、Cr12Mo1V1+Co (D2+Co) | |
| Diameter | ¢40-¢250* | |
| Length | 450mm-1450mm | |
| Hardness of Barrel | 75-93 HSD | |
| Hardness of Neck | 30-60 HSD | |
| Thickness of hardened layer Harden depth | 5-15mm | |
| Execution Standards | GB/T13314-2008 |
| Intermediate Rolls | Mill Type | Single Stand Rolling Mill, Rolling Tandem Mill, Cluster Mill, Skin Pass Mill |
| Material | 5H12、8Cr5MoV | |
| Diameter | ¢250-¢450* | |
| Length | 500mm-1600mm | |
| Hardness of Barrel | 74-82 HSD | |
| Hardness of Neck | 40-60 HSD | |
| Thickness of hardened layer Harden depth | 10-30mm | |
| Execution Standards | GB/T13314-2008 |
| Back-up Rolls | Mill Type | Single Stand Rolling Mill, Rolling Tandem Mill, Cluster Mill, Skin Pass Mill |
| Material | 45Cr4NiMoV、50Cr5MoV、60CrMnMo、60CrNiMo、70Cr3Mo、70Cr3NiMo | |
| Diameter | ¢450-¢1600* | |
| Length | 450mm-1780mm | |
| Hardness of Barrel | 52-72 HSD | |
| Hardness of Neck | 30-55 HSD | |
| Thickness of hardened layer Harden depth | 25-55mm | |
| Execution Standards | JB/T4120-2017 |
| Material | C | Si | Mn | P | S | Cr | Ni | Mo | V | W | Co |
| 9Cr2Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.35 | ≤0.025 | ≤0.025 | 1.70-2.10 | ≤0.25 | 0.20-0.40 | — | — | — |
| 9Cr3Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.35 | ≤0.025 | ≤0.025 | 2.50-3.50 | ≤0.25 | 0.20-0.40 | — | ||
| 9Cr5Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.35 | ≤0.025 | ≤0.025 | 4.80-5.50 | ≤0.25 | 0.20-0.40 | — | ||
| 8Cr3MoV | 0.78-1.10 | 0.40-1.10 | 0.20-0.50 | ≤0.025 | ≤0.025 | 2.80-3.20 | ≤0.80 | 0.20-0.60 | 0.05-0.15 | — | — |
| 8Cr5MoV | 0.78-0.90 | 0.40-1.10 | 0.20-0.50 | ≤0.020 | ≤0.020 | 4.80-5.50 | ≤0.80 | 0.20-0.60 | 0.10-0.20 | — | — |
| M2 | 0.80-0.90 | 0.20-0.45 | 0.15-0.40 | ≤0.025 | ≤0.025 | 3.80-4.40 | — | 4.50-5.50 | 1.75-2.20 | 5.50-6.75 | — |
| Cr12Mo1V1(D2) | 1.40-1.60 | ≤0.60 | ≤0.60 | ≤0.020 | ≤0.010 | 11.00-13.00 | ≤0.15 | 0.90-1.10 | 0.75-0.95 | ≤0.15 | — |
| Cr12Mo1V1+Co(D2+Mo) | .40-1.60 | ≤0.60 | ≤0.60 | ≤0.020 | ≤0.010 | 11.00-13.00 | ≤0.15 | 0.90-1.10 | 0.75-0.95 | ≤0.15 | 0.35-0.50 |
| Material | C | Si | Mn | P | S | Cr | Ni | Mo | V | W | Co |
| 5H12 | 0.48-0.55 | 0.80-1.20 | 0.20-0.50 | ≤0.025 | ≤0.010 | 4.80-5.50 | — | 1.0-1.50 | 0.30-0.60 | 1.0-1.50 | — |
| 8Cr5MoV | 0.78-0.90 | 0.40-1.10 | 0.20-0.50 | ≤0.020 | ≤0.020 | 4.80-5.50 | ≤0.80 | 0.20-0.60 | 0.10-0.20 | — | — |
| Material | C | Si | Mn | P | S | Cr | Ni | Mo | V | W | Co |
| 45Cr4NiMoV | 0.40-0.50 | 0.40-0.80 | 0.60-0.80 | ≤0.020 | ≤0.020 | 3.50-4.50 | 0.40-0.80 | 0.40-0.80 | 0.05-0.15 | — | — |
| 50Cr5MoV | 0.40-0.60 | 0.40-0.80 | 0.50-0.80 | ≤0.020 | ≤0.020 | 4.50-5.50 | ≤0.60 | 0.40-0.80 | ≤0.30 | — | — |
| 70Cr3Mo | 0.60-0.75 | 0.40-0.70 | 0.50-0.90 | ≤0.025 | ≤0.025 | 2.0-3.50 | ≤0.60 | 0.25-0.60 | — | — | — |
GBT 13314-2008
JB_T3733-2017
JB/T4120-2017
