BS 1490 · Al-Si-Mg alloy (A356 equivalent)
LM25 Aluminium Alloy Ingot
Premium heat-treatable Al-Si-Mg alloy with excellent strength, ductility, and pressure tightness for safety-critical castings.

Chemical Composition
| Element | Composition (%) |
|---|---|
| Si | 6.5 – 7.5 |
| Mg | 0.2 – 0.45 |
| Fe | ≤ 0.5 |
| Al | Balance |
Mechanical & Physical Properties
Tensile strength
≈ 310 MPa (T6)
Ductility
High
Pressure tightness
Excellent
Applications
WheelsCylinder headsAerospace componentsFood-grade castings
Advantages
- High strength
- Heat treatable
- Safety-critical grade