National Mfg N215-707 Plain Steel Square Tube 0.75x48 in

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N215-707 is a plain steel square tube measuring 0.75 inches x 48 inches, manufactured using an electric-resistance welding (ERW) process on hot-rolled plain steel stock. This tube meets ASTM Specification A513, the standard for ERW carbon and alloy steel mechanical tubing. At 6.9 pounds, it delivers substantial structural rigidity suited to a wide range of load-bearing and fabrication tasks. It is a go-to raw material stock for contractors, fabricators, and maintenance trades who need reliable mild steel tubing cut to a workable length.

This square tube is designed for use in frames, railings, truck racks, gates, and other commercial and industrial fabrication applications. It is equally applicable in light structural assemblies, agricultural equipment builds, trailer component fabrication, and general shop projects where hot-rolled plain steel tube meets dimensional and strength requirements. The ERW process produces a consistent wall and weld seam, making this tube straightforward to cut, drill, weld, and grind in the field or shop environment.

Key Features

• Electric-resistance welded construction for consistent wall thickness and weld integrity
• Hot-rolled plain steel — accepts welding, grinding, painting, and powder coating
• Meets ASTM Specification A513 for ERW carbon and alloy steel mechanical tubing
• 0.75 inch x 48 inch profile suits common frame, gate, and railing fabrication layouts
• Sold in a package quantity of 3 tubes

Compatibility

Designed for commercial and industrial fabrication applications including frames, railings, truck racks, and gates where plain steel ERW square tubing conforming to ASTM A513 is specified.

Installation Notes

Cutting, welding, and fitting of structural steel tubing is typically performed by qualified fabricators, ironworkers, or maintenance mechanics. Always wear appropriate PPE including eye protection, gloves, and respiratory protection when cutting or welding. De-energize any adjacent electrical systems before beginning metalwork in live environments. Follow applicable local building codes and AWS welding standards when incorporating this tube into structural or load-bearing assemblies.