Through purchasing the forging blanks from the domestic well- known enterprises and adopt the advanced own intellectual property dual-frequency induction quenching facility and the super-cooling treatment facility as well as the whole set of differential harden equipment of back-up rolls and heat treatment process from Union Electric Steel USA, the forged rolls have very good properties with anti-spalling, wear resistance and high quality. The good facility and good technology adopted ensure the better hardness organization and prolonged service period. The products are successfully applied to single and double stands of mill, tandem mill, five stands 4-high tandem mill, five stands 6-high tandem mill etc.
(1) Forged work roll and intermediate rolls for cold rolling mill.
| Product Name | C | Mn | Cr | Mo | V | Ni |
| 86CrMoV7 | 0.82-0.88 | 0.32-0.50 | 1.50-2.20 | 0.20-1.0 | 0.10-0.40 | ≤0.60 |
| 9Cr2Mo | 0.85-0.95 | 0.20-0.6 | .50-2.50 | 0.20-1.0 | – | ≤0.60 |
| 3%Cr | 0.75-0.95 | 0.20-0.6 | 2.50-3.50 | 0.20-1.0 | – | ≤0.60 |
| 3%CrA | 0.70-0.90 | 0.30-0.80 | 2.50-3.50 | 0.40-1.0 | 0.10-0.40 | 0.60-1.0 |
| 5%Cr | 0.70-0.90 | 0.20-0.50 | 4.50-5.50 | 0.20-1.0 | 0.10-0.40 | 0.60-1.0 |
| Typical Mechanical Properties | ||||
| Type of cold rolls | Tensile strength | Depth of hardness | Hardness of neck | hardness of Barrel |
| Cr2% | ≥800 | 12-18 | 40-55 | Work roll:90-98 Intermediate roll:80-90 Back-up roll:55-75 Temper roll:95-100 |
| Cr3% | ≥900 | 20-28 | 40-55 | Work roll:90-98 Intermediate roll:80-90 Back-up roll:55-75 Temper roll:95-100 |
| Cr5 | ≥1000 | 25-40 | 40-55 | Work roll:90-98 Intermediate roll:80-90 Back-up roll:55-75 Temper roll:95-100 |
| The scope of supply: | ||||
| Type of cold rolls | Material | Body length | Body Diameter | Overall length |
| Cold-rolling work rolls | Cr2、Cr3、Cr5 | ≤2500 | ≤800 | ≤5000 |
| Cold-rolling intermediate rolls | Cr2、Cr3、Cr5 | ≤2500 | ≤1000 | ≤5000 |
| Cold-rolling back-up rolls | Cr3、Cr5 | ≤2800 | ≤1800 | ≤8000 |
| Cold-rolling temper rolls | Cr2、Cr3、Cr5 | ≤2500 | ≤800 | ≤5000 |
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If you want to find a trustworthy adamite rolls supplier with long-term cooperation, maybe you need to concern about as the following
1.Mill rolls equipment
The equipment plays an important role in the high-quality mill rolls. Types of equipment matters from the beginning to the finished products.
2.Quality Control
Different stages of production have to follow controlling parameters to ensure that the production department is working with the required efficiency. To get the quality mill roll, quality is absolutely necessary
3. Technological Advancement of the manufacturer
A reliable manufacturer will focus on technological advancement for its long-lasting development. The advanced technology can guarantee the improvement of products. The best supplier not only can provide high-standard products but also is the steel solution provider. Before choosing the company you should ensure the manufacture has a professional team for advanced technology.
4. Delivery time and price of the companyDelivery time often is the main factor to choose the supplier. Delivery on-time is also the basis of next time cooperation. Checking out the place of the company and the delivery term is essential. Price is also an important element for a best-value mill roll manufacturer.
Founded in 2007, LMM GROUP mainly produces all kinds of metallurgical rolls for various types of steel, bar, high-speed wire and strip hot and cold plate and strip rolling mills.
The company covers an area of 100,000 square meters, including two complete production lines for cast rolls and forged steel rolls, processing workshops, product research and development centers, testing centers, training centers and office buildings and other supporting facilities. The factory environment is very beautiful.
LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time
We would be happy to help and advise if you have any questions or inquiries.
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