Aluminum 6063-T52 Square Tubing 1-3/4 in x 1-3/4 in - Durable

In this review the OnlineMetals Aluminum 6063-T52 square tubing is evaluated for builders and hobbyists who need a light, corrosion-resistant structural section. The bottom line: this 72 in length of 6063-T52 is best for architectural and light structural projects where weldability, consistent dimensions, and corrosion resistance matter most. The review focuses on how the material performs in practical applications, summarizing customer experience and the single biggest reason to buy: reliable, heat-treated 6063 alloy that meets ASTM B221 for predictable quality.

Key Features

• 6063 aluminum alloy: Provides excellent corrosion resistance ideal for outdoor and marine-adjacent fixtures.
• ASTM B221 compliance: Ensures the tubing meets standard tolerances and metallurgical requirements expected by fabricators.
• Heat treated for strength: The T52 temper increases usable strength compared with as-extruded sections for sturdier builds.
• Precise dimensions: Customers report consistent 1-3/4 in by 1-3/4 in sizing and 1/8 in wall thickness that simplifies fitting and assembly.
• Good weldability: The alloy is noted for welding compatibility, making it suitable for fabricated frames and light structural work.

Who It's For

The tubing is best for hobbyists, fabricators, and small contractors making light frames, railings, fixtures, or canoe supports where a balance of weight, corrosion resistance, and weldability is required. Its 72 in length and 1/8 in wall thickness suit projects that need rigid but lightweight members without heavy structural load requirements.

Those who need heavy load-bearing structural members, thick-walled tubing, or aerospace-grade alloys should look elsewhere. Also, if a precise custom length or heavier wall is required, users may prefer longer fabrication stock or different temper/designation.

Pros & Cons

Pros

• Solid corrosion resistance from the 6063 alloy, suitable for outdoor exposure.
• Consistent, accurate dimensions that customers praise for ease of use and fit.
• Good value for the material and length, making it practical for multiple small projects.
• Heat treated T52 temper gives improved strength over softer extrusions.

Cons

• Not intended for heavy structural loading; some customers report fit or strength concerns for very demanding applications.
• The 1/8 in wall may be thin for applications that require high impact resistance or heavy loads.

Specifications

Alloy	6063-T52
Standard	Meets ASTM B221
Shape	Square tubing
Outside dimensions	1-3/4 in x 1-3/4 in
Wall thickness	1/8 in
Length	72 in

Our Verdict

The OnlineMetals Aluminum 6063-T52 square tubing is a practical choice for builders who need a lightweight, corrosion-resistant, and weldable square tube in a convenient 72 in length. It offers dependable dimensions and good value for fixtures, frames, and light structural work, though projects with heavy load demands should specify thicker or different alloy tubing.

Frequently Asked Questions

Is this tubing suitable for outdoor use?
The 6063 alloy offers excellent corrosion resistance, making it appropriate for outdoor and sheltered marine-adjacent use.

Can it be welded easily?
Yes; 6063-T52 is known for good weldability, which customers have cited when using it for fabricated frames and fixtures.

Is the wall thickness adequate for heavy loads?
The 1/8 in wall is fine for light structural and fixture use but may be undersized for heavy load-bearing applications.