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Cast Iron Class 25
Chemical Composition
| Element | Symbol | Average Preferred Range % |
| Carbon | C | 3.0-3.5 |
| Silicon | Si | 1.4-2.0 |
| Manganese | Mn | 1.0-1.7 |
| Phosphorus | P | 0-0.15 |
| Chromium | Cr | 0.05-0.45 |
| Nickel | Ni | 0.05-0.1 |
| Molybdenum | Mo | 0.05-0.1 |
| Sulfur | S | 0-0.12 |
| Copper | Cu | 0.15-0.4 |
| Iron | Fe | Balance |
Mechanical Properties
| Property | Metric Values | Imperial Values |
| Tensile Strenght Min | 29 ksi | 200 MPa |
| Hardness (Brinell) | 170-220HB | 170-220HB |
Comparative Specifications
Applicable Casting Processes