TSR | Expert of Mill Rolls
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Pearlitic and Pearlitic / Sorbitic Nodular Iron are nodular grades alloyed with Cr, Ni, and Mo with Ni ranging between 1.50% in the softer grades and 4% in the harder grades. The right balance of Si and Cr will help to develop the adequate hardness level.
The rolls can be cast static or spun cast depending of the size of the working layer and the mill conditions.
| MATERIAL | CHEMISTRY |
BARREL HARDNESS (HSC) |
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| C | Si | Mn | Cr | Ni | Mo | |||
| Pearlite (SGP) |
Pearlite I | 2.90-3.60 | 1.40-2.20 | 0.40-1.00 | 0.10-0.60 | 1.50-2.00 | 0.20-0.80 | 45-55 |
| Pearlite II | 2.90-3.60 | 1.20-2.00 | 0.40-1.00 | 0.20-1.00 | 2.01-2.50 | 0.20-0.80 | 55-65 | |
| Pearlite III | 2.90-3.60 | 1.00-2.00 | 0.40-1.00 | 0.20-1.00 | 2.51-3.00 | 0.20-0.80 | 62-72 | |
| TYPICAL PHYSICAL PROPERTIES |
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| Neck Hardness (HSC) | Tensile Strength (N/mm2) |
Unevenness of Barrel Surface Hardness (HSC) |
|
| 35-55 | ≥350 | ＜5 | |
Hardness Distribution
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