- Bainite ductile cast iron rolls can increase the production efficiency of the pre-finishing stand and reduce downtime during the production process.
- It reduces the frequency of roller replacement, thereby effectively reducing production costs.
- The roll has excellent wear resistance and can withstand friction and wear during high-speed rolling, extending its service life.
- Compared to pearlitic cast iron, acicular cast iron exhibits higher strength, toughness and wear resistance.

Product Introduction of Bainite Ductile Cast Iron Rolls:
- The ductile iron roll contains alloying elements such as nickel, manganese, chromium, and molybdenum, which enhance its overall properties.
- Its matrix features an acicular structure (bainite + small martensite), which, as a result, offers higher strength and improved durability when compared to pearlite spheroidal graphite. Consequently, this structure enhances the overall performance of the roll.
- It is produced by two methods: static casting and centrifugal casting.
- However, due to the high alloy content and high casting fatigue.
- Using the centrifugal composite casting process, we can achieve the ideal comprehensive performance.Using the centrifugal composite casting process, we can achieve the ideal comprehensive performance.

Product Advantages of Bainite Ductile Cast Iron Rolls:
We can produce the roll using static or centrifugal casting, which extends its service life and reduces production costs., bainite, and martensite matrix structures, while graphite is spherical in shape, has good thermal conductivity, and has high tensile strength.

Applications of Bainite Ductile Cast Iron Rolls:
Beam, bar, wire rod mill rough rolling, the rolling, pre-finishing mill stand; seamless steel pipe mill reducing rack set.
| Chemical Analysis |
| Crades | C | Si | Mn | P | S | Ni | Cr | Mo |
| SGAI | 3.1-3.5 | 1.2-2.0 | 0.3-0.8 | ≤0.05 | ≤0.05 | 3.0-3.5 | 0.2-0.8 | 0.5-0.8 |
| SGAII | 3.1-3.5 | 1.2-2.0 | 0.3-0.8 | ≤0.05 | ≤0.05 | 3.5-4.5 | 0.2-1.0 | 0.5-0.8 |
| Physical Properties | | |
| Grades | Hardness | Tensile strength |
| SGAI | 60-75 HSD | ≥400MPA |
| SGAII | 65-80 HSD | ≥400MPA |
Professional Pre-sales Support To Help You Choose The Best Roll Solution
Professional consulting services
- Provide professional roller selection suggestions to help customers choose the right material and model according to production needs.
- Provide detailed product specifications, technical documents, and application cases to help customers understand the product.
Customized service
- Designed and produced customized rollers according to customers’ specific needs to meet special working conditions and production requirements.
- Provide production line optimization solutions to improve rolling efficiency and product quality.
Quick response
- The dedicated sales team quickly responds to customer inquiries and guarantees to provide solutions within 24 hours.
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