OnlineMetals Aluminum 6063-T52 Square Tubing 2in x 2in - Durable

In this review the OnlineMetals Aluminum 6063-T52 Square Tubing is examined for hobbyists and light fabricators who need a corrosion-resistant, weldable structural shape. The bottom line: this 2in x 2in x 1/4in wall, 12in length tube delivers consistent dimensions and the expected performance of 6063 aluminum for architectural and light structural uses. It is best for projects where finish, corrosion resistance and ease of welding matter more than maximum structural capacity.

Key Features

• 6063 aluminum: Provides good corrosion resistance for outdoor and marine-adjacent projects where rust is a concern.
• ASTM B221 specification: Ensures the tubing meets industry standards for composition and extrusion quality.
• Heat treated T52 temper: Increases strength relative to annealed 6063 while retaining good workability.
• Precise dimensions: The 2in by 2in by 1/4in wall profile and 12in length arrive with consistent sizing useful for assembly and repeatable builds.
• Good weldability: Allows simple joining using common aluminum welding techniques for DIY frames and fixtures.
• Architectural finish: Smooth surface and clean extrusion make it suitable for visible applications like fixtures or trim.

Who It's For

This tubing is aimed at DIY builders, light fabricators, and makers who need a neat, corrosion-resistant square tube for projects like frames, light fixtures, or small boat fittings. The combination of heat treated 6063 and ASTM B221 compliance makes it a sensible choice for functional, visible parts that benefit from a nicer finish.

It is not intended as a replacement for heavy structural steel in load-bearing industrial applications; buyers with heavy-duty structural requirements or high tensile load demands should consider higher-strength aluminum alloys or steel instead.

Pros & Cons

Pros

• Consistent, precise dimensions that simplify fitting and assembly for repeatable projects.
• Good corrosion resistance that holds up in outdoor or humid environments.
• Ease of welding and machining makes it versatile for DIY fabrication.

Cons

• Mixed feedback on fit and strength for heavier loads means it may be marginal for high-stress applications.

Specifications

Material	Aluminum 6063-T52
Standards	Meets ASTM B221
Shape	Square tubing
Outside dimensions	2in x 2in
Wall thickness	1/4in
Length	12in
Finish	Architectural, smooth extrusion

Our Verdict

The OnlineMetals Aluminum 6063-T52 Square Tubing is a practical, well-made option for makers and light fabricators seeking corrosion resistance, good weldability, and reliable dimensions. It represents good value for finish-sensitive or outdoor projects, though those needing very high load capacity should select a higher-strength alloy or thicker section.

Frequently Asked Questions

Is this tubing suitable for welding?
Yes. The 6063-T52 alloy has good weldability for common aluminum welding methods and straightforward fabrication.

Can it be used outdoors by the water?
Yes. 6063 offers excellent corrosion resistance for outdoor and marine-adjacent use, though prolonged direct saltwater exposure may require additional coating or maintenance.

Is this strong enough for heavy loads?
It is heat treated for increased strength but is intended for light structural uses; users with heavy load needs should consider stronger alloys or thicker walls.