Aluminium alloy 3103 is a manganese-containing aluminium alloy offering good mechanical strength, excellent corrosion resistance, and very good weldability. In the H14 temper, the alloy is work hardened to a half-hard condition, making it suitable for applications requiring a balance of strength and formability.
Alloy 3103 is typically used for:
Alloy: 3103
Spec: BS EN 573-3:2009
| Chemical Element | % Present |
|---|---|
| Manganese (Mn) | 0.90 – 1.50 |
| Iron (Fe) | 0.00 – 0.70 |
| Copper (Cu) | 0.00 – 0.10 |
| Magnesium (Mg) | 0.00 – 0.30 |
| Silicon (Si) | 0.00 – 0.50 |
| Zinc (Zn) | 0.00 – 0.20 |
| Chromium (Cr) | 0.00 – 0.10 |
| Titanium + Zirconium (Ti + Zr) | 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 | 655 °C |
| Thermal Expansion | 23.1 × 10⁻⁶ /K |
| Modulus of Elasticity | 69.5 GPa |
| Thermal Conductivity | 160 W/m·K |
| Electrical Conductivity | 42% IACS |
Sheet: 0.20 mm to 6.00 mm
Spec: BS EN 485-2:2008
| Property | Value |
|---|---|
| Tensile Strength | 140 – 180 MPa |
| Proof Stress | 120 MPa (Min) |
| Hardness (Brinell) | 45 HB |
Aluminium alloy 3103 corresponds to the following designation (not direct equivalents):
The most common temper for aluminium alloy 3103:
