6063 Aluminum Plate: Versatile, Lightweight, and Ideal for Architectural Applications

When it comes to lightweight strength, excellent corrosion resistance, and superior surface finish, 6063 aluminum plate stands out as a top choice for architectural and structural applications. Widely used in building facades, window frames, railings, and precision components, 6063 offers a unique combination of formability, weldability, and aesthetics.

In this comprehensive guide, we explore everything you need to know about 6063 aluminum plate—its properties, benefits, common uses, available sizes, and how it compares to other aluminum grades. Whether you’re a contractor, designer, or procurement specialist, this article will help you determine if 6063 is the right fit for your next project.

This article is proudly presented by sasaaluminum, your trusted global supplier of premium-grade aluminum plates, sheets, and profiles.

1. What Is 6063 Aluminum?

6063 aluminum is a heat-treatable alloy composed primarily of aluminum, with magnesium and silicon as major alloying elements. It’s categorized under the 6xxx series, which balances strength and corrosion resistance, making it highly suitable for extruded shapes and architectural finishes.

Key characteristics of 6063 aluminum include:

• Excellent surface finish and anodizing ability

• Good weldability and machinability

• Moderate tensile strength

• High corrosion resistance in outdoor environments

• Lightweight and easy to fabricate

2. Chemical Composition of 6063 Aluminum

Typical chemical composition of 6063 aluminum alloy:

• Aluminum (Al): 97.5% minimum

• Magnesium (Mg): 0.45%–0.9%

• Silicon (Si): 0.2%–0.6%

• Iron (Fe): ≤ 0.35%

• Copper (Cu): ≤ 0.1%

• Manganese (Mn): ≤ 0.1%

• Zinc (Zn): ≤ 0.1%

• Chromium (Cr): ≤ 0.1%

• Titanium (Ti): ≤ 0.1%

This balanced composition makes it ideal for architectural finishing and moderate-strength structural uses.

3. Mechanical Properties of 6063 Aluminum Plate

6063 aluminum is typically available in T5 and T6 tempers:

T6 temper offers higher strength, while T5 provides better formability.

4. Advantages of Using 6063 Aluminum Plate

4.1 Excellent Anodizing Characteristics

6063 aluminum plate takes anodized finishes exceptionally well, making it ideal for architectural components that require both appearance and protection. It supports both clear and colored anodizing.

4.2 Lightweight and Easy to Fabricate

Its low density makes it easy to transport, install, and machine. It’s especially valued in projects where weight reduction is critical without compromising performance.

4.3 Corrosion Resistance

6063 offers outstanding resistance to corrosion, particularly in humid or marine environments. It performs well in coastal buildings, boat docks, and transport applications.

4.4 Cost-Effective Solution

Compared to stronger grades like 6061 or 7075, 6063 is more affordable and easier to process, making it a go-to material for large-scale architectural projects.

5. Common Applications of 6063 Aluminum Plate

6063 aluminum plate is widely used in the following industries:

• Architecture & Construction

  • Window and door frames

  • Curtain walls

  • Decorative trims

  • Exterior cladding

• Transportation

  • Trailer panels

  • Lightweight flooring

  • Interior trim panels

• Marine Applications

  • Walkways and gangways

  • Boat interiors

• Furniture and Fixtures

  • Display panels

  • Storefronts

  • Office partitions

Thanks to its smooth surface and clean lines, 6063 is often chosen when appearance matters.

6. 6063 vs. 6061: Which One Should You Choose?

While both are in the 6xxx series, 6061 and 6063 serve slightly different purposes.

If your project prioritizes appearance and corrosion resistance, 6063 is the better choice. For load-bearing or high-strength requirements, consider 6061.

7. Available Thicknesses and Sizes of 6063 Plate

6063 aluminum plate is available in a range of thicknesses:

• Standard thicknesses: 3 mm to 50 mm

• Widths: Up to 1500 mm

• Lengths: Up to 6000 mm (custom cuts available)

sasaaluminum offers both standard stock sizes and cut-to-size services to match your project needs.

8. Machining and Welding Guidelines

• Machining: Easily drilled, milled, or routed using standard aluminum tooling. Use cutting fluids to extend tool life.

• Welding: Compatible with MIG and TIG welding. Use filler alloy ER5356 for best results.

• Finishing: Ideal for anodizing, powder coating, and mechanical polishing.

6063 aluminum is one of the most user-friendly alloys in the shop.

9. Storage and Handling Tips

To preserve the quality of 6063 aluminum plates:

• Store in dry, covered areas

• Avoid direct contact with concrete or steel to prevent galvanic corrosion

• Use protective film if storing for long periods

• Handle with clean gloves to avoid fingerprint corrosion

sasaaluminum ensures that all products are shipped with protective packaging to prevent damage.

10. Why Choose sasaaluminum for 6063 Aluminum Plate

At sasaaluminum, we deliver premium-grade 6063 aluminum plates tailored to your requirements. When you work with us, you benefit from:

• Reliable stock availability

• Custom dimensions and CNC-ready formats

• International shipping with secure packaging

• Material certification and traceability

• Expert support from our aluminum specialists

Whether you’re a manufacturer, fabricator, or builder, sasaaluminum is your global aluminum partner for quality, consistency, and competitive pricing.

11. Final Thoughts

6063 aluminum plate offers a unique blend of formability, corrosion resistance, and aesthetic appeal, making it the ideal material for architectural and decorative applications. Its lightweight nature and excellent surface finish make it easy to work with, and its affordability makes it a smart choice for cost-conscious projects.

If you’re sourcing 6063 aluminum plate for your next construction or fabrication project, trust sasaaluminum for precision, performance, and reliability.