JIS H 5302 · Al-Si-Cu die-casting alloy
ADC12 Aluminium Alloy Ingot
The world's most widely used aluminium pressure die-casting alloy — outstanding fluidity, pressure tightness, and dimensional stability.

Chemical Composition
| Element | Composition (%) |
|---|---|
| Si | 9.6 – 12.0 |
| Cu | 1.5 – 3.5 |
| Fe | ≤ 1.3 |
| Zn | ≤ 1.0 |
| Al | Balance |
Mechanical & Physical Properties
Tensile strength
≈ 330 MPa
Density
2.70 g/cm³
Melting range
515 – 580 °C
Applications
Engine blocksTransmission housingsElectronics enclosuresThin-wall castings
Advantages
- Superb fluidity
- Excellent pressure tightness
- Stable dimensions