A356 (also called 356-T6 in heat-treated condition) is the most-used heat-treatable cast aluminum alloy. It pours well in sand, investment, and permanent-mold processes, then heat-treats to mechanical properties competitive with low-grade wrought aluminum.
Mechanical and physical properties
| Property | Value (T6) |
|---|---|
| Tensile strength | 260 MPa |
| Yield strength | 185 MPa |
| Elongation at break | 5% |
| Density | 2.68 g/cm³ |
| Modulus | 73 GPa |
| Castability | Excellent |
Typical applications
- Engine blocks and transmission housings.
- Marine and outdoor structural castings.
- Pressure-tight valve bodies.
- Aerospace and aviation cast parts.
Related materials
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