OnlineMetals A500/A513 Carbon Steel Rectangular Tubing 1.5in x 2in

In this review the tubing is evaluated for fabricators, hobby welders, and small contractors who need reliable rectangular steel for structural or shop projects. The bottom line: this OnlineMetals A500/A513 carbon steel rectangular tubing delivers sturdy, value-oriented material with predictable weldability and consistent dimensions, making it a sensible choice when cost, strength, and fit matter. For anyone building frames, racks, or structural supports, the single biggest reason to buy is the combination of common A500/A513 specification and practical dimensions that match standard shop needs.

Key Features

• Material quality: The A500/A513 carbon steel offers good strength and weldability for common structural and fabrication tasks.
• Practical dimensions: At 1.5in height, 2in width and 0.12in wall thickness, the tube balances stiffness and ease of cutting for frames and supports.
• Length: The 36in length is convenient for short runs, prototypes, and projects that avoid long transport and handling concerns.
• Finish: The unpolished mill finish and hot rolled surface are typical for structural steel and reduce cost while remaining ready for welding and painting.
• Standards compliance: Meets ASTM A513 and A500 (call for availability), giving confidence about dimensional and material expectations for structural use.

Who It's For

This tubing is aimed at metalworkers, fabricators, DIYers, and contractors who need a commonly specified rectangular tube for structural frames, supports, shelving, or welded projects. It is well suited to those who prioritize low cost, weldability, and a predictable, heavy-feeling material for load-bearing or shop fixtures.

Those who need a finished, polished look, thin-gauge decorative tubing, or custom metallurgical grades should look elsewhere. Also consider alternative sizes or cold-drawn/precision tubes if you require tighter tolerances or a smoother surface straight from the supplier.

Pros & Cons

Pros

• Good strength and weldability from A500/A513 material, making it straightforward for common fabrication techniques.
• Customers report clean, rust-free arrival and solid welded quality, which reduces prep time before welding or painting.
• Cost-effective hot rolled mill finish gives good value for structural applications without unnecessary finishing costs.

Cons

• The hot rolled, unpolished surface may not suit projects that require a cosmetic finish without additional grinding or coating.

Specifications

Material	Carbon steel (A500/A513)
Height	1.5in
Width	2in
Wall thickness	0.12in
Length	36in
Finish	Unpolished (mill), hot rolled

Our Verdict

For fabricators and workshop users seeking a dependable, economical rectangular tube, the OnlineMetals A500/A513 carbon steel option is a practical pick due to its strength, weldability, and common dimensions. It represents good value where appearance is secondary and structural performance is primary.

Frequently Asked Questions

Is this tubing easy to weld?
Yes. The A500/A513 carbon steel is noted for good weldability and is commonly used in welded structural applications.

Does it arrive clean or coated to prevent rust?
Customers report the tubing arrives clean with no rust, though the mill finish is uncoated and may require paint or coating for long-term corrosion protection.

Is this suitable for load-bearing frames?
Yes. The hot rolled A36/A500/A513 specification and 0.12in wall make it suitable for many general structural and framing uses.