Aluminium alloy 6082 is a medium-strength structural alloy offering excellent corrosion resistance and the highest strength within the 6000 series. In plate form, 6082 is the most commonly used alloy for machining applications. As a relatively newer alloy, its enhanced mechanical properties have led to alloy 6082 replacing 6061 in many structural and engineering applications. The high manganese content helps control grain structure, resulting in improved strength and toughness. Alloy 6082 is not ideally suited for thin-walled or highly complex extrusion profiles, and its extruded surface finish is generally less smooth compared to other 6000-series alloys of similar strength. While this datasheet covers T4 temper extrusions, it is worth noting that in T6 and T651 tempers, alloy 6082 machines produce exceptionally well, producing tight, well-broken swarf when appropriate chip breakers are used.
Alloy 6082 is typically used in:
Alloy 6082
Spec: BS EN 573-3:2009
| Chemical Element | % Present |
|---|---|
| Manganese (Mn) | 0.40 – 1.00 |
| Iron (Fe) | 0.0 – 0.50 |
| Magnesium (Mg) | 0.60 – 1.20 |
| Silicon (Si) | 0.70 – 1.30 |
| Copper (Cu) | 0.0 – 0.10 |
| Chromium (Cr) | 0.0 – 0.25 |
| Other (Each) | 0.0 – 0.05 |
| Others (Total) | 0.0 – 0.15 |
| Aluminium (Al) | Balance |
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Point | 555 °C |
| Thermal Expansion | 24 × 10⁻⁶ /K |
| Modulus of Elasticity | 70 GPa |
| Thermal Conductivity | 180 W/m·K |
| Electrical Resistivity | 0.038 × 10⁻⁶ Ω·m |
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 110 MPa (Min) |
| Tensile Strength | 205 MPa (Min) |
| Elongation A50 mm | 12% (Min) |
| Hardness (Brinell) | 70 HB |
| Elongation A | 14% (Min) |
Aluminium alloy 6082 corresponds to the following standards (not always direct equivalents):
The most common tempers for alloy 6082 are:
Alloy 6082 is typically supplied as:
Alloy 6082 has very good weldability, although some loss of strength occurs in the weld zone.
| Property | Rating |
|---|---|
| Weldability – Gas | Good |
| Weldability – Arc | Good |
| Weldability – Resistance | Good |
| Brazability | Good |
| Solderability | Good |
