EngiRef / Cast Iron Properties
Gray Cast Iron (Class 30)
Gray Cast Iron (Class 30) (ASTM A48 Class 30): cast iron engineering material. Density 7150 kg/m³. Elastic modulus 100 GPa. Full property sheet with thermal…
cast-iron
Specification
- Name
- Gray Cast Iron (Class 30)
- Category
- cast-iron
- Designation
- ASTM A48 Class 30
- Applications
- Engine blocks, Brake rotors, Machine bases, Pipe, Cookware
- Notes
- Graphite flakes. Excellent damping. Good machinability. Brittle, no yield strength.
Properties
| Property | Value |
|---|---|
| Density | 7150 kg/m³ |
| Tensile Strength Ultimate | 214 MPa |
| Elastic Modulus | 100 GPa |
| Poissons Ratio | 0.26 |
| Thermal Conductivity | 46 W/(m·K) |
| Thermal Expansion | 10.8 µm/(m·K) |
| Specific Heat | 490 J/(kg·K) |
| Melting Point | 1175 °C |
| Hardness | Brinell: 210 |