Related Specifications
Aluminium alloy 6063/6063A also corresponds to the following standard designations and specifications but may not be a direct equivalent:
- AA6063
- Al Mg0.7Si
- GS10
- AlMgSi0.5
- A-GS
- 3.32206
- ASTM B210
- ASTM B221
- ASTM B241 (Pipe- Seamless)
- ASTM B345 (Pipe- Seamless)
- ASTM B361
- ASTM B429
- ASTM B483
- ASTM B491
- MIL G-18014
- MIL G-18015
- MIL P-25995
- MIL W-85
- QQ A-200/9
- SAE J454
- UNS A96063
- HE19
Temper Types
The most common temper for 6063 aluminium are:
- T4
- O
- T6
Properties
Chemical Composition
Alloy 6063
BS EN 573-3
Chemical Element | % Present |
---|---|
Manganese (Mn) | 0.00 - 0.10 |
Iron (Fe) | 0.00 - 0.35 |
Magnesium (Mg) | 0.45 - 0.90 |
Silicon (Si) | 0.20 - 0.60 |
Zinc (Zn) | 0.00 - 0.10 |
Titanium (Ti) | 0.00 - 0.10 |
Chromium (Cr) | 0.00 - 0.10 |
Copper (Cu) | 0.00 - 0.10 |
Other (Each) | 0.00 - 0.05 |
Others (Total) | 0.00 - 0.15 |
Aluminium (Al) | Balance |
Mechanical Properties
Rod & Bar Up to 200mm Dia.
BS EN 755-2
Mechanical Property | Value |
---|---|
Tensile Strength | 130 Max MPa |
Elongation A50 mm | 16 Min % |
Hardness Brinell | 25 HB |
Elongation A | 18 Min % |
Tube Up to 25mm Wall Thickness
BS EN 755-2
Mechanical Property | Value |
---|---|
Tensile Strength | 130 Max MPa |
Elongation A50 mm | 16 Min % |
Hardness Brinell | 25 HB |
Elongation A | 18 Min % |
General Physical Properties
Physical Property | Value |
---|---|
Density | 2.70 g/cm³ |
Melting Point | 600 °C |
Thermal Expansion | 23.5 x 10-6/K |
Modulus of Elasticity | 69.5 GPa |
Thermal Conductivity | 200 W/m.K |
Electrical Resistivity | 0.035 x 10-6 Ω .m |
Applications
- Extrusions
- Window frames
- Doors
- Shop fittings
- Irrigation tubing
- In balustrading the rails and posts are normally in the T6 temper and formed elbows and bends are T4
- Hydro formed tube for chassis
Characteristics
- High corrosion resistance
- Medium strength
- Good surface finish
- Readily suited to welding
- Easily anodised
- Good formability in the T4 condition
Additional Information
Weldability
6063 is suitable for all conventional welding methods.
Welding wire generally should be alloy 5183 or alloy 4043.
When maximum electrical conductivity is required use alloy 4043.
For strength and conductivity use alloy 5346 and increase the size of the weld to compensate for the lower conductivity.
Process | Rating |
Weldability - Gas | Excellent |
Weldability - Arc | Excellent |
Weldability - Resistance | Excellent |
Brazability | Excellent |
Solderability | Good |
Fabrication
Process | Rating |
---|---|
Workability - Cold | Average |
Machinability | Average |