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Cast Iron Class 20
Chemical Composition
Element | Symbol | Average Preferred Range % |
Carbon | C | 3.25-3.5 |
Manganese | Mn | 0.5-0.9 |
Silicon | Si | 1.8-2.3 |
Nickel | Ni | 0.05-0.2 |
Copper | Cu | 0.15-0.40 |
Chromium | Cr | 0.05-0.45 |
Molybdenum | Mo | 0.05-0.1 |
Sulfur | S | 0-0.15 |
Phosphorus | P | 0-0.2 |
Iron | Fe | Balance |
Mechanical Properties
Property | Metric Values | Imperial Values |
Tensile Strenght Min | 20 ksi | 138 MPa |
Yield Strength Min | 14.2 ksi | 98 MPa |
Elongation Min % | 9.6% | 9.6% |
Hardness (Brinell) | 156HB | 156HB |