Aluminium 6063 Machined Parts: Properties, Tempers, and Applications
Aluminium 6063 is a medium-strength aluminum alloy valued for its excellent surface finish, corrosion resistance, and ease of anodizing. It is widely used for machined and extruded parts where appearance and durability matter more than extreme strength. At GNEE, a Chinese supplier of aluminum alloys and machined components, 6063 aluminum is a popular choice for architectural and light-duty engineering applications.
What Is Aluminium 6063?
6063 aluminium alloy is a heat-treatable aluminum-magnesium-silicon alloy commonly selected for architectural and decorative uses. Its standout characteristics include smooth surface quality, good corrosion resistance, and reliable mechanical performance.
The alloy is most often supplied in the 6063-T6 temper, which has been solution heat-treated and artificially aged to improve strength and stability. A higher-strength variant, 6063A, is also available for applications requiring slightly enhanced mechanical properties.
6063 aluminum is typically produced as extrusions, including bars, rods, tubes, pipes, and standard profiles. When standard extruded shapes-such as square sections or right-angle profiles-meet design requirements, 6063-T6 offers an efficient and cost-effective solution.
For applications demanding higher strength or custom machining, alternatives such as 6082-T6 aluminum or 7075-T6 aluminum may be more suitable.
6063 Aluminum Common Tempers and Designations
6063 Aluminum Tempers
6063 aluminum is available in several standard tempers, including:
O
T4
T5
T6
T832
Among these, 6063-T6 is the most widely used due to its balanced strength, machinability, and surface quality.
6063 Aluminum Equivalent Standards
6063 aluminum may also be identified under various international and industry designations, such as
AA6063 / AA6063-T6
Al Mg0.7Si
AlMgSi0.5
UNS A96063
HE19
ASTM B210 / B221 / B241 / B345 / B361 / B429 / B483 / B49
SAE J454
MIL G-18014 / G-18015 / P-25995 / W-85
QQ-A-200/9
Key Attributes of Aluminium 6063 Alloy
6063 aluminum properties make it ideal for visually demanding and corrosion-sensitive applications:
Attractive and uniform surface finish
High resistance to corrosion
Medium mechanical strength
Good electrical conductivity
Excellent anodizing response
Relatively good tensile performance
Suitable for extrusion and light machining
Common Applications of 6063 Aluminum Machined Parts
Thanks to its balance of aesthetics and performance, 6063 aluminum is widely used in:
Structural and framing components
Architectural extrusions
Balustrades and railings
Window and door frames
Tubes, pipes, and fittings
Air cylinders
Recreational and sports equipment
Chemical processing and storage equipment
Heat exchangers, sinks, and cooling systems
GNEE supplies 6063 aluminum parts for customers who require light-duty components with high visual quality.
Finishing and Treatment of 6063 Aluminum
Aluminium 6063 is exceptionally well suited for surface finishing. It can be:
Easily anodized for enhanced corrosion resistance and appearance
Welded using appropriate techniques
Machined to achieve smooth, precise surfaces
Its excellent anodizing performance makes it a preferred alloy for decorative and exposed components.
6063-T6 Physical Properties
| Physical Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Point | 655 °C |
| Thermal Expansion | 23.5 × 10⁻⁶ /K |
| Modulus of Elasticity | 69.5 GPa |
| Thermal Conductivity | 201 W/m·K |
| Electrical Resistivity | 0.033 × 10⁻⁶ Ω·m |
| Electrical Conductivity | ~52% IACS |
6063 Aluminum Machining and Performance FAQs
Is 6063 aluminum stronger than 6061?
No. 6063 has slightly lower strength and hardness than 6061, which makes it easier to machine but less suitable for heavy structural applications.
What is 6063 aluminum best used for?
6063 is ideal for applications where surface finish, corrosion resistance, and appearance are more important than high mechanical strength.
Is 6063 aluminum suitable for machining?
Yes. With proper tooling and controlled cutting parameters, 6063 can be machined effectively for parts requiring moderate strength and excellent surface quality.
How does 6063 machinability compare to 6061?
6063 has moderate machinability, slightly lower than 6061. Sharp tools and optimized feeds help achieve the best results.
Can 6063 aluminum be anodized?
Absolutely. One of the main reasons 6063 is chosen is its outstanding anodizing performance, producing smooth, uniform, and visually appealing finishes.
Aluminium 6063 Machined Parts from GNEE
At GNEE, a Chinese supplier of aluminum alloys and precision-machined products, we machine 6063 aluminum for customers who need aesthetically pleasing, corrosion-resistant, and reliable aluminum components. Whether for architectural, industrial, or decorative applications, GNEE provides consistent quality and professional support.
Contact GNEE today to learn more about 6063 aluminum machined parts or to request a quotation for your next project.
