3-1/2" x 3-1/2" 1/4" Square Steel Tubing – A500 Grade B – Select Length

3-1/2" x 3-1/2" x 1/4" Square Steel Tubing

Heavy-duty 3-1/2" x 3-1/2" square steel tubing with a 1/4" wall thickness, cut to your selected length and ready for fabrication.

This structural steel tubing is an excellent choice for projects requiring high strength and rigidity. Ideal for welding, fabrication, trailer construction, equipment repair, structural frames, supports, brackets and heavy-duty shop projects.

Product Specifications

• Outside Dimensions: 3-1/2" x 3-1/2"

• Wall Thickness: 1/4"

• Material: Carbon Steel

• Grade: A500 Grade B

• Shape: Square Tubing

• Finish: Raw Steel

• Cut Type: Saw Cut

• Cut Length Tolerance: ±1/8"

• Sold By: Individual Piece

• Multiple lengths available

Common Uses

• Structural fabrication

• Heavy-duty frames

• Trailer fabrication

• Equipment repair

• Machinery supports

• Welding projects

• Farm and ranch projects

• Brackets and supports

• Industrial fabrication

• General metalworking

Cut to Length

Choose the length you need without purchasing a full-length stick. Each piece is cut to your selected length, making it convenient for small fabrication jobs, repairs, prototypes and custom projects.

Raw Steel Finish

This product is supplied as raw, unfinished steel. Surface appearance may vary and can include mill scale, light surface rust, scratches or other normal characteristics associated with raw steel products.

Material Certification

Mill Test Reports (MTRs) are available upon request when available.

Shipping

Ships in 1–5 Business Days