Aluminium alloy 3003 is a medium-strength alloy with very good resistance to atmospheric corrosion, excellent weldability, and good cold formability. It offers better mechanical properties, particularly at elevated temperatures, when compared to the 1000 series aluminium alloys.
Alloy 3003 is typically used for:
Alloy: 3003
Spec: BS EN 573-3:2009
| Chemical Element | % Present |
|---|---|
| Manganese (Mn) | 1.00 – 1.50 |
| Iron (Fe) | 0.00 – 0.70 |
| Copper (Cu) | 0.05 – 0.20 |
| Magnesium (Mg) | 0.00 – 0.05 |
| Silicon (Si) | 0.00 – 0.60 |
| Zinc (Zn) | 0.00 – 0.10 |
| Other (Each) | 0.00 – 0.05 |
| Others (Total) | 0.00 – 0.15 |
| Aluminium (Al) | Balance |
| Property | Value |
|---|---|
| Density | 2.73 g/cm³ |
| Melting Point | 640 °C |
| Thermal Expansion | 23.2 × 10⁻⁶ /K |
| Modulus of Elasticity | 69 GPa |
| Thermal Conductivity | 190 W/m·K |
| Electrical Resistivity | 0.034 × 10⁻⁶ Ω·m |
Sheet: 0.20 mm to 6.00 mm
Spec: BS EN 485-2:2008
| Property | Value |
|---|---|
| Tensile Strength | 95 – 135 MPa |
| Proof Stress | 35 MPa (Min) |
| Hardness (Brinell) | 28 HB |
| Elongation A | 25% (Min) |
Aluminium alloy 3003 corresponds to the following designations (not direct equivalents):
The most common temper for 3003 aluminium is:
