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Alloy Nodular Cast Iron Rolls (SG)
These rolls are characterized by spherical graphite.Its mechanical properties are similar to that of alloy indefinite chilled rolls except that its strength is higher than the latter.They can be produced by static.
Chemical Composition %
| Symbol | C | Si | Mn | Cr | Ni | Mo | Mg |
| SGⅡ | 2.90-3.60 | 0.80-2.50 | 0.40-1.20 | 0.20-0.60 | - | 0.20-0.60 | ≥0.04 |
| SGⅣ | 2.90-3.60 | 0.80-2.50 | 0.40-1.20 | 0.20-0.60 | 0.50-1.00 | 0.20-0.80 | ≥0.04 |
| SGⅤ | 2.90-3.60 | 0.80-2.50 | 0.40-1.20 | 0.30-1.20 | 1.01-2.00 | 0.20-0.80 | ≥0.04 |
Prosperities&Application
| Symbol | Hardness HS |
Tensile Strength MPa |
Bending Strength MPa |
Dimension MM |
Unit N.W KGS |
Application |
| SGⅡ | 50-70 | ≥320 | 500-700 | ￠300-1300 | 500-35000 | Rolls for finish stands of light section mills, bar and wire rod mills, hot narrow strip mills and temper mill. |
| SGⅣ | 55-70 | ≥320 | 500-700 | |||
| SGⅤ | 60-70 | ≥320 | 600-800 |
