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What are Chilled Cast Iron Rolls?
In the steel and metallurgical industries, Chilled Cast Iron Rolls remain one of the most widely used rolling mill rolls thanks to their excellent wear resistance and cost-effectiveness. These rolls are manufactured by casting molten iron into molds, where rapid cooling at the roll surface produces a hard, white cast iron “chilled” layer. This unique structure combines a wear-resistant outer surface with a relatively tough and supportive core, ensuring stable performance in demanding rolling operations.
Chilled Cast Iron Rolls
Key Characteristics
- High Surface Hardness – The chilled layer is extremely hard, allowing for outstanding resistance to abrasion.
- Consistent Performance – The tough gray iron core provides strength, reducing the risk of breakage during heavy rolling.
- Versatility – Available in different hardness grades to suit various applications in section mills, bar mills, and wire rod mills.
- Cost-Effective – Offers an economical solution compared to alloy rolls while maintaining reliable performance.
Properties
| Material Category | Material Name | Code | C | Si | Mn | P | S | Cr | Ni | Mo | Surface Hardness (HSD) | Application |
| Chilled Cast Iron | Cr-Mo Chilled Cast Iron | CC | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 0.20~0.60 | – | 0.20~0.60 | 58~70 (barrel) / 32~50 (Neck) | Small section steel, bar, wire rod roughing |
| Ni-Cr-Mo Chilled Cast Iron I | CC I | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 0.60~1.00 | 0.50~2.00 | 0.20~0.60 | 60~72 (barrel) / 32~50 (Neck) | ||
| Ni-Cr-Mo Chilled Cast Iron II | CC II | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 0.90~1.50 | 1.01~2.00 | 0.20~0.60 | 62~75 (barrel) / 35~52 (Neck) | ||
| Ni-Cr-Mo Chilled Cast Iron III | CC III | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 0.50~1.50 | 2.01~3.00 | 0.20~0.60 | 65~80 (barrel) / 35~45 (Neck) | ||
| Ni-Cr-Mo Chilled Cast Iron IV | CC IV | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 0.50~1.70 | 3.01~4.50 | 0.20~0.60 | 70~85 (barrel) / 32~45 (Neck) |
Applications
These Rolls are widely applied in:
- Small and medium-section mills
- Bar and wire rod rolling mills
- Light-duty rolling operations where durability and affordability are equally important
Why Choose Our Chilled Cast Iron Rolls?
At SATRAD GROUP, we focus on precision manufacturing and strict quality control to deliver rolls with uniform chilled depth, superior hardness distribution, and long service life. Our engineering team ensures that every roll meets your mill’s exact operating requirements, helping you achieve smoother production and reduced downtime.
If your mill is looking for durable, economical, and proven rolling solutions, contact SATRAD GROUP today. Our experts are ready to provide tailored advice and support to keep your production running efficiently.
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