Pearlitic nodular rolls are obtained by adding alloy elements of Ni, Cr, Mo into the nodular cast iron, it is widely used on roughing stand of section mill.
Product Description
Pearlitic nodular rolls are obtained by adding alloy elements of Ni, Cr, Mo into the nodular cast iron and following special heat treatment. Pearlitic nodular rolls have high strength, good thermal properties and resistance to emergencies as well as small hardness gradient of working layer, It is widely used on roughing stand of section mill.
Chemical component:
| C | Si | Mn | P | S | Cr | Ni | Mo | Barrel Hardness HSD | |
| SGV | 2.90-3.60 | 0.8-2.50 | 0.40-1.00 | ≤0.2 | ≤0.03 | 0.30-1.20 | 1.00-2.00 | 0.20-0.80 | 45-55 |
| SGPI | 2.90-3.60 | 1.40-2.20 | 0.40-1.00 | ≤0.15 | ≤0.03 | 0.10-0.60 | 1.50-2.00 | 0.20-0.80 | 50-65 |
| SGPII | 2.90-3.60 | 1.20-2.00 | 0.40-1.00 | ≤0.15 | ≤0.03 | 0.20-1.00 | 2.01-2.50 | 0.20-0.80 | 60-68 |
| SGPIII | 2.90-3.60 | 1.20-2.00 | 0.40-1.00 | ≤0.15 | ≤0.03 | 0.20-1.20 | 2.51-3.00 | 0.20-0.80 | 62-72 |
Neck Hardness: 35-55
Core Tensile Strength: 350N/mm2 min
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