Square Mild Steel Tubing 3/4in x .065in x 4ft

Square mild steel tubing 3/4in x .065in x 4ft from ALLSTAR PERFORMANCE is a versatile structural component designed for fabrication, welding projects, and custom builds where lightweight yet rigid framing is required. This 4-foot length serves welders, fabricators, restoration specialists, and DIY builders who need dependable steel stock for chassis construction, roll cages, exhaust tubing, or general structural applications. The 0.75-inch square profile provides balanced strength-to-weight characteristics and is a standard size in automotive and industrial fabrication work.

Constructed from mild steel in natural (unfinished) condition, this tubing features a 0.065-inch wall thickness that strikes an optimal balance between weldability and structural integrity. The thin wall allows easier cutting and forming while maintaining sufficient rigidity for load-bearing applications, and mild steel composition ensures excellent weldability with standard MIG, TIG, or stick welding processes without brittleness concerns. At just 2.34 lbs per 4-foot section, it remains manageable for single-person handling while delivering the dimensional accuracy required for precision fabrication and custom assembly work.

Fabricators and hobbyists building custom frames, roll bars, or structural supports will find this square tubing ideal for projects demanding clean welds and consistent wall thickness. The 4-foot length accommodates multiple cutting options or can be used whole as a single structural member, making it suitable for prototype development and short-run production. Natural finish means the tubing is ready for immediate welding or can be primed and painted to match project specifications—no surface preparation beyond standard degreasing is necessary before joining or finishing.