Aluminium alloy 5454 offers excellent corrosion resistance, particularly against seawater and general environmental exposure. It is a medium- to high-strength aluminium–magnesium alloy, with strength levels comparable to alloy 5754, and maintains reliable performance within the temperature range of 65 °C to 170 °C. The alloy also exhibits high fatigue strength, making it suitable for applications subjected to repeated stress. However, 5454 is not recommended for fine or complex extrusions.
Alloy 5454 is typically used in:
Alloy 5454
Spec: BS EN 573-3:2009
| Chemical Element | % Present |
|---|---|
| Manganese (Mn) | 0.50 – 1.00 |
| Iron (Fe) | 0.00 – 0.40 |
| Magnesium (Mg) | 2.40 – 3.00 |
| Silicon (Si) | 0.00 – 0.25 |
| Chromium (Cr) | 0.05 – 0.20 |
| Titanium (Ti) | 0.00 – 0.20 |
| Zinc (Zn) | 0.00 – 0.25 |
| Copper (Cu) | 0.00 – 0.10 |
| Aluminium (Al) | Balance |
| Other (Each) | 0.00 – 0.05 |
| Others (Total) | 0.00 – 0.15 |
| Property | Value |
|---|---|
| Density | 2.69 g/cm³ |
| Melting Point | 645 °C |
| Thermal Expansion | 23.6 × 10⁻⁶ /K |
| Modulus of Elasticity | 70.5 GPa |
| Thermal Conductivity | 135 W/m·K |
| Electrical Conductivity | 34 % IACS |
Spec: BS EN 485-2:2008
| Property | Value |
|---|---|
| Proof Stress | ≥ 85 MPa |
| Tensile Strength | 215 – 275 MPa |
| Hardness (Brinell) | 58 HB |
Aluminium alloy 5454 corresponds to the following designations (not direct equivalents):
The most commonly supplied tempers for aluminium alloy 5454 include:
Alloy 5454 is supplied in most standard forms, but is not suitable for fine or complex extrusions:
