A500/A513 Carbon Steel Rectangular Tubing 1.5in x 2.5in - Structural

Our review of the A500/A513 carbon steel rectangular tubing focuses on practical users who need reliable structural stock for fabrication and construction. In short, this hot rolled A36 tubing is best for builders, fabricators, and hobbyists who value good weldability and consistent dimensions at a low cost. The single biggest reason to buy is its combination of structural-grade A36 chemistry and predictable hot-rolled form, which makes it straightforward to weld, cut, and incorporate into frames, supports, and general steelwork.

Key Features

• A36 carbon steel grade: Provides a balance of strength and formability that makes the tubing suitable for common structural uses like framing and supports.
• Hot rolled finish: Ensures the section attains the listed dimensions through a high-temperature rolling process that is efficient and cost-effective.
• Rectangular profile: The 1.5in height by 2.5in width offers a compact footprint that is easy to mount and orient in welded assemblies and storage racks.
• 0.12in wall thickness: Delivers a practical wall gauge for light- to medium-duty structural tasks while keeping weight manageable.
• 72in length: A full 6ft length reduces the number of joints for most small projects and is convenient for cutting to size.
• Meets ASTM specifications: Conformance to ASTM A36 and A513 (A500 availability on request) gives confidence in material consistency for structural applications.

Who It's For

The tubing is aimed at contractors, welders, metal fabricators, and serious DIYers who need affordable structural steel that welds and machines predictably. Its size and wall thickness suit small frames, supports, and fixtures where medium strength and good weldability are priorities.

Those who need precision cold-drawn finishes, high-alloy steels, or very thin gauge tubing for decorative projects should look elsewhere; this product is hot rolled A36 carbon steel intended for functional structural use rather than fine finish or specialized alloy performance.

Pros & Cons

Pros

• Good strength-to-cost ratio for general structural work and framing.
• Reported by customers to arrive clean with no rust and consistent welded quality.
• Practical 72in length and compact rectangular dimensions make it versatile for many builds.
• Meets ASTM specifications, which supports predictable material properties for welders and fabricators.

Cons

• Hot rolled surface is not a polished finish; extra surface prep may be needed for cosmetic projects.
• Not a specialized alloy-users needing higher hardness or corrosion resistance must select different materials.

Specifications

Material	A36 carbon steel (A500/A513)
Profile	Rectangular tubing
Height	1.5in
Width	2.5in
Wall thickness	0.12in
Length	72in (6ft)
Finish	Hot rolled

Our Verdict

The A500/A513 A36 rectangular tubing is a practical, good-value choice for structural framing and welding projects where straightforward strength and weldability matter more than finish. For contractors and fabricators who need consistent dimensions and a reliable A36 grade, it represents sensible material economy and useful lengths for common metalwork.

Frequently Asked Questions

Is this tubing weldable?
Yes. The A36 carbon steel grade is known for good weldability, and customers report clean welds and solid welded quality.

Does it arrive rust-free?
Many buyers note the tubing arrives clean with no rust, though standard shop handling and storage practices are recommended.

Can I use it for structural applications?
Yes. The hot rolled A36 tubing is commonly used for general structural purposes such as building frames and supports and meets ASTM specifications.