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Cast Iron Class 40
Chemical Composition
Element | Symbol | Average Preferred Range % |
Carbon | C | 3.1-3.4 |
Silicon | Si | 2.5-2.8 |
Manganese | Mn | 0.5-0.7 |
Phosphorus | P | 0.2 |
Chromium | Cr | 0.05-0.45 |
Nickel | Ni | 0.05-0.2 |
Molybdenum | Mo | 0.05-0.1 |
Sulfur | S | 0.07 |
Iron | Fe | Balance |
Mechanical Properties
Property | Metric Values | Imperial Values |
Tensile Strenght Min | 40 ksi | 276 MPa |
Yield Strenght Min | 20 ksi | 140 MPa |
Elongation Min % | 2-3% | 2-3% |
Hardness (Brinell) | 183HB | 183HB |