Aluminium alloy 6063A is a higher-strength variation of alloy 6063. It retains the excellent surface finish and high anodising capability of 6063 while offering improved mechanical strength, making it suitable for more demanding structural and transport applications.
Aluminium alloy 6063 is a medium-strength alloy, commonly referred to as an architectural alloy. It is widely used for intricate and complex extrusions.
6063 aluminium is typically used in:
Alloy 6063A
Spec: BS EN 573-3:2009
| Chemical Element | % Present |
|---|---|
| Manganese (Mn) | 0.0 – 0.15 |
| Iron (Fe) | 0.15 – 0.35 |
| Magnesium (Mg) | 0.60 – 0.90 |
| Silicon (Si) | 0.30 – 0.60 |
| Zinc (Zn) | 0.0 – 0.15 |
| Copper (Cu) | 0.0 – 0.05 |
| Aluminium (Al) | Balance |
| Other (Each) | 0.0 – 0.05 |
| Others (Total) | 0.0 – 0.15 |
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Point | 600 °C |
| Thermal Expansion | 23.5 × 10⁻⁶ /K |
| Modulus of Elasticity | 69.5 GPa |
| Thermal Conductivity | 200 W/m·K |
| Electrical Resistivity | 0.035 × 10⁻⁶ Ω·m |
Rod & Bar – Up to 150 mm Dia. & A/F
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 190 MPa (Min) |
| Tensile Strength | 230 MPa (Min) |
| Elongation A50 mm | 5% (Min) |
| Hardness (Brinell) | 80 HB |
| Elongation A | 7% (Min) |
Bar – 150 mm to 200 mm Dia. & A/F
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 160 MPa (Min) |
| Tensile Strength | 220 MPa (Min) |
| Hardness (Brinell) | 80 HB |
| Elongation A | 7% (Min) |
Tube – Up to 25 mm Wall Thickness
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 190 MPa (Min) |
| Tensile Strength | 230 MPa (Min) |
| Elongation A50 mm | 5% (Min) |
| Hardness (Brinell) | 80 HB |
| Elongation A | 7% (Min) |
Profiles – Up to 10 mm Wall Thickness
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 190 MPa (Min) |
| Tensile Strength | 230 MPa (Min) |
| Elongation A50 mm | 5% (Min) |
| Hardness (Brinell) | 80 HB |
| Elongation A | 7% (Min) |
Profiles – 10 mm to 25 mm Wall Thickness
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 180 MPa (Min) |
| Tensile Strength | 220 MPa (Min) |
| Elongation A50 mm | 4% (Min) |
| Hardness (Brinell) | 80 HB |
| Elongation A | 5% (Min) |
Aluminium alloy 6063 / 6063A corresponds to the following standards (not always direct equivalents):
Alloy 6063 is supplied as standard extrusions, including:
Alloy 6063 is suitable for all conventional welding methods.
| Process | Rating |
|---|---|
| Gas | Excellent |
| Arc | Excellent |
| Resistance | Excellent |
| Brazability | Excellent |
| Solderability | Good |
