BS 1490 · Piston alloy (Al-Si-Cu-Mg-Ni)
LM13 Aluminium Alloy Ingot
Low-expansion piston alloy with excellent strength at elevated temperatures for internal-combustion engines.
Chemical Composition
| Element | Composition (%) |
|---|---|
| Si | 10.0 – 13.0 |
| Cu | 0.7 – 1.5 |
| Mg | 0.8 – 1.5 |
| Ni | ≤ 1.5 |
| Al | Balance |
Mechanical & Physical Properties
Thermal expansion
Low
Elevated-temp strength
High
Applications
PistonsHigh-temperature componentsEngine parts
Advantages
- Low expansion
- Heat resistant
- Durable