Rectangular Tubes

ASTM A500 – ERW Rectangular Structural Tubing

ASTM A500 is the standard specification for cold-formed, electric-resistance welded (ERW) carbon steel structural tubing in rectangular, square, and round shapes. ERW rectangular tubing produced to this standard is designed for use in structural applications where strength, uniformity, and ease of fabrication are essential.

ASTM A500 rectangular tubing is manufactured through a cold-forming process, followed by electric-resistance welding, producing sharp corners, smooth surfaces, and consistent dimensions. This makes it ideal for a wide range of construction and engineering applications.

Available in Grades A, B, C, and D, with Grades B and C being the most commonly used, ASTM A500 rectangular tubing is suitable for:

  • Structural framing and supports
  • Architectural and exposed structural work
  • Fabricated components and machinery frames
  • Infrastructure and general construction

Advantages of ASTM A500 ERW rectangular tubing include:

  • Superior strength-to-weight ratio
  • Consistent wall thickness and dimensional accuracy
  • Excellent weldability, machinability, and formability
  • Hollow profile for concealing utilities or mechanical systems

This tubing offers a clean and modern appearance, making it popular not only for structural performance but also for aesthetic design in commercial and industrial builds.