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to Properties of steels and cast irons
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| Malleable cast iron ASTM A220 | ||||
| Chemical composition: C=2-2.7%, Mn=0.25-1.25%, Si=1-1.75%, S=0.03-0.18%, P=0.05%max | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 7.2 *10³-7.45 *10³ | kg/m³ | 450-465 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 172 | GPa | 25000 | ksi |
| Thermal expansion (20 ºC) | 11.9*10-6 | ºCˉ¹ | 6.6*10-6 | in/(in* ºF) |
| Electric resistivity | 3.9*10-7 | Ohm*m | 3.9*10-5 | Ohm*cm |
| Tensile strength | 586 | MPa | 85000 | psi |
| Yield strength | 483 | MPa | 70100 | psi |
| Elongation | 3 | % | 3 | % |
| Hardness (Brinell) | 217-269 | HB | 217-269 | HB |
| Wear resistance | Low | |||
| Corrosion resistance | Low | |||
| Weldability | Impossible | |||
| Machinability | Medium | |||
| Castability | Good | |||
| Shock resistance | Good | |||