Aluminium alloy 6063A is a variation of alloy 6063, offering higher strength while retaining the same excellent surface finish and strong suitability for anodising. It is widely used where improved mechanical performance is required without compromising aesthetics.
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 | 90 MPa (Min) |
| Tensile Strength | 150 MPa (Min) |
| Elongation A50 mm | 10% (Min) |
| Hardness (Brinell) | 50 HB |
| Elongation A | 12% (Min) |
Bar – 150 mm to 200 mm Dia. & A/F
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 90 MPa (Min) |
| Tensile Strength | 140 MPa (Min) |
| Hardness (Brinell) | 50 HB |
| Elongation A | 10% (Min) |
Tube – Up to 10 mm Wall Thickness
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 90 MPa (Min) |
| Tensile Strength | 150 MPa (Min) |
| Elongation A50 mm | 10% (Min) |
| Hardness (Brinell) | 50 HB |
| Elongation A | 12% (Min) |
Tube – 10 mm to 25 mm Wall Thickness
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 90 MPa (Min) |
| Tensile Strength | 140 MPa (Min) |
| Elongation A50 mm | 8% (Min) |
| Hardness (Brinell) | 50 HB |
| Elongation A | 10% (Min) |
Profiles – Up to 25 mm Wall Thickness
Spec: BS EN 755-2:2008
| Property | Value |
|---|---|
| Proof Stress | 90 MPa (Min) |
| Tensile Strength | 150 MPa (Min) |
| Elongation A50 mm | 10% (Min) |
| Hardness (Brinell) | 50 HB |
| Elongation A | 12% (Min) |
Aluminium alloy 6063 / 6063A corresponds to the following standards (not always direct equivalents):
The most common tempers for alloy 6063 are:
Alloy 6063 is supplied as standard extrusions, including:
Alloy 6063 is suitable for all conventional welding methods. Recommended welding wires: Alloy 5183 Alloy 4043 For maximum electrical conductivity: use alloy 4043 For strength and conductivity: use alloy 5346 and increase weld size to compensate for lower conductivity
| Welding Method | Rating |
|---|---|
| Gas | Excellent |
| Arc | Excellent |
| Resistance | Excellent |
| Brazing | Excellent |
| Soldering | Good |
