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Enhanced High Chromium Cast Iron Roll (En-HiCr)
Enhanced high chromium cast iron roll is widely applied as work roll of the front stand of HSM. The constitutions are characterized by 20-30% of M7C3 carbides of great hardness evenly distributed in the matrix of tempered Martensite so that the durability and anti-thermal fatigue performance are great.
Table.1 Chemical Composition
| Symbol | C | Si | Mn | Cr | Ni | Mo | V |
| En-HiCr | 2.6-3.2 | 0.40-1.20 | 0.3.-1.20 | 16.0-22.0 | 1.0-2.0 | 1.0-3.0 | <1.5 |
Table.2 Physical Performance
| Barrel Harness (HSD) |
Journal Hardness (HSD) |
Tensile Strength (Mpa) |
Hardness Uniformity (HSD) |
Thichness Difference of Shell (mm) |
| 70-95 | 30-45 | >400 | <3 | <10 |
