National Mfg N215-715 Plain Steel Square Tube 1x48 Inch

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N215-715 is a hot rolled plain steel square tube measuring 1 inch x 48 inches, manufactured using the electric resistance welded (ERW) process. It meets ASTM Specification A513, confirming consistent dimensional tolerances and material quality expected in structural and fabrication applications. This tube is a general-purpose steel section suited for contractors, fabricators, and tradespeople who need reliable raw stock for custom metal work. Weighing 9 pounds, it provides substantial structural mass in a manageable 48-inch length. The ERW process produces a clean, uniform weld seam along the length, making this tube appropriate for load-bearing and aesthetic applications alike.

This square tube is intended for commercial and industrial fabrication projects. Typical applications include frames, railings, truck racks, and gates. It is well suited for custom fabrication shops, welding operations, and field installation crews working on structural metalwork. The plain steel finish accepts paint, powder coat, or other surface treatments after fabrication. Each package contains 3 pieces, making it practical for small batch projects or maintenance stock.

Key Features

• Electric resistance welded (ERW) construction for consistent weld integrity along the full length
• Hot rolled plain steel meets ASTM Specification A513 dimensional and material standards
• 1 inch x 48 inch dimensions suit common framing and railing fabrication layouts
• Plain steel finish is compatible with painting, powder coating, or galvanizing after fabrication
• Packaged in quantities of 3 pieces per unit for efficient project stocking

Compatibility

Designed for use in commercial and industrial fabrication applications including frames, railings, truck racks, and gates where ASTM A513 hot rolled plain steel square tubing is specified.

Installation Notes

Cutting and welding of plain steel square tube should be performed by qualified metalworkers or fabricators using appropriate personal protective equipment. Deburr all cut ends before fitting to eliminate sharp edges and ensure clean joints. Surface preparation, including grinding or cleaning of the weld area, is recommended prior to any coating or painting. Follow applicable structural and safety codes for the specific application, such as local building codes for railings or load-rated rack systems.