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.

What is the chemical composition of LM13?
| 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
What is LM13 used for?
PistonsHigh-temperature componentsEngine parts
Advantages
- Low expansion
- Heat resistant
- Durable
Frequently asked questions
What is the chemical composition of LM13?+
Si 10.0 – 13.0%, Cu 0.7 – 1.5%, Mg 0.8 – 1.5%, Ni ≤ 1.5%, Al Balance.
What is LM13 used for?+
LM13 is typically used for Pistons, High-temperature components, Engine parts.
What standard does LM13 meet?+
LM13 is a Piston alloy (Al-Si-Cu-Mg-Ni), manufactured to BS 1490.