Aluminum 6063 is the industry's most widely used extrusion alloy, known for its clean surface finish, strong corrosion resistance, and ease of fabrication. Often called architectural aluminum, it's the standard choice for window systems, railings, trim, and other visible applications. Southern Tool Steel stocks 6063 aluminum in flats, pipe, rounds, structural, and tubing, ready to ship nationwide.
What is 6063 Aluminum?
6063 aluminum is a heat-treatable alloy from the 6xxx series, with magnesium and silicon as its primary alloying elements. Its low copper content and tightly controlled composition give it excellent flow characteristics during extrusion, allowing it to be formed into complex, thin-walled profiles with tight tolerances.
6063 is typically supplied in one of several heat-treated tempers, each offering a different balance of strength and workability depending on how the material was processed after extrusion. Across its available tempers, 6063 retains its signature smooth surface finish and strong response to anodizing, making it a reliable choice for finished, visible applications where appearance and corrosion resistance are priorities alongside moderate strength requirements.
Key Attributes of 6063 Aluminum
- Excellent extrudability, well suited for complex and thin-walled profiles
- Strong response to anodizing, producing a consistent, uniform finish
- Good corrosion resistance, suitable for long-term outdoor use
- Good weldability, commonly joined using TIG or MIG welding
- Heat-treatable, with properties that vary by temper
- Medium strength compared to higher-strength structural alloys such as 6061
Chemical Composition
| Element | Percent (%) |
|---|---|
| Aluminum | >Remainder |
| Magnesium> | 0.45 - 0.90 |
| Silicon | 0.20 - 0.60 |
| Iron> | 0.35 max |
| Copper | 0.10 max |
| Manganese | 0.10 max |
| Chromium | 0.10 max |
| Zinc | 0.10 max |
| Titanium | 0.10 max |
| Others, each | 0.05 max |
| Others, total | 0.15 max |
Applications for 6063 Aluminum
6063 aluminum is most often selected for projects where extrudability, a clean finish, and corrosion resistance are priorities. Common applications include:
Architectural Products
- Window and door frames
- Railings and handrails
- Trim, molding, and decorative profiles
Construction
- Structural framing elements for light to medium-duty applications
- Piping and tubing
- Roofing and awning structures
Available Forms and Sizes:
- Flats
- Pipe
- Rounds
- Structural
- Tubing
Order 6063 Aluminum Bar and Stock
Southern Tool Steel is a stocking distributor of Aluminum 6063. We are here to answer your questions and help you identify the right form and condition for your application. Contact us today or check pricing and availability instantly.
Why Partner with Southern Tool Steel?
- Extrusion-Ready Stock: A full range of flats, pipe, rounds, structural, and tubing sized for architectural and construction projects
- Custom Solutions: Precision-cutting and machining services available
- Fast Shipping: Nationwide delivery with quick lead times to keep your project on schedule