Following the introduction of CHS, RHS have also become very popular in many forms of construction and other structural and mechanical applications. This has been greatly assisted by the sections inherent flat surfaces making it more economical for joining and other fabrication processes. In this instance, and unlike CHS, the sections only need to be straight-cut (when joining to other flat surfaces) instead of profile cut. Minimal edge preparation is required for joining and welding RHS.

Like CHS, RHS are also aesthetic, possess clean lines, functional, interact less with external environmental effects and are highly desired from an architectural perspective.

Application areas:

• Structural uses in residential, commercial and industrial construction, signage, leisure equipment, road furniture, transport industries, mechanical, heavy engineering, mining and resources, process engineering, materials handling and agricultural.

Structural RHS is manufactured and tested to meet the requirements of the following specifications:

• AS 1163 – Structural steel hollow sections.