A500/A513 Carbon Steel Square Tubing 2in x 0.12in x 48in - Structural

Our review of this A500/A513 carbon steel square tubing focuses on practical use for builders, fabricators, and hobbyists who need a sturdy 4-ft length of square tube at a low cost. The bottom line: this 2in by 2in tubing with a 0.12in wall delivers the core qualities expected from A500/A513 steel - good strength and weldability - making it a reliable choice for structural framing, automotive projects, or appliance supports where a common, economical steel section is required.

Key Features

• Material quality: A500/A513 grade offers reliable structural strength and consistent mechanical properties suitable for general fabrication.
• Size and dimensions: The 2in height and 0.12in wall thickness provide a balance of stiffness and manageable weight for hand and machine work.
• Length: The 48in length is convenient as a 4-ft stick for cutting, joining or using whole in small frames without excess waste.
• Weldability: The tubing welds well for common shop processes, making it easy to join into frames, supports, or custom parts.
• Standards compliance: Meets ASTM-A513 and has availability under ASTM-A500, giving confidence for structural and industrial uses.
• Cost effectiveness: As a common North American steel tubing, it tends to be lower cost than specialty alloys while still meeting routine strength needs.

Who It's For

This tubing is aimed at fabricators, contractors, and DIYers who need a straightforward structural member for fences, small frames, custom brackets, or prototype builds. Its common sizing and standards make it easy to integrate into projects that require predictable welding and mechanical behavior.

Those who need corrosion resistance for outdoor or marine environments, very thin-gauge precision tubing, or specialty stainless properties should look elsewhere; this product is standard hot-rolled carbon steel and may require surface treatment or coating to resist rust in exposed conditions.

Pros & Cons

Pros

• Good balance of strength and weldability for structural and fabrication work.
• Convenient 48in length reduces the need for immediate splicing in small projects.
• Common grade and size make it economical and easy to source replacement pieces.

Cons

• As hot-rolled carbon steel, it offers only basic corrosion resistance and may require coating for outdoor use.

Specifications

Material	A500/A513 carbon steel
Shape	Square tubing
Height	2 in
Wall thickness	0.12 in
Length	48 in (4 ft)
Standards	Meets ASTM-A513; ASTM-A500 call for availability

Our Verdict

The A500/A513 2in x 0.12in x 48in carbon steel square tubing is a pragmatic choice for general fabrication, structural framing, and hobby projects where strength, weldability, and cost matter. It is good value for those prepared to add a protective finish when corrosion resistance is important, and it performs well as a standard shop material.

Frequently Asked Questions

Is this tubing ready for outdoor use?
Not inherently; as hot-rolled carbon steel it should be painted or otherwise coated if used outdoors to prevent rust.

Can this be welded with common shop methods?
Yes, A500/A513 is known for good weldability and accepts common welding processes used in structural fabrication.

Is the 48in length suitable for structural framing?
Yes, the 4-ft length is convenient for small frames and sections, though longer runs will require splicing or alternative lengths.