Mild Steel 1¼″ Round Pipe, 18 Gauge (1.2mm) Structural Hollow Section

Mild Steel Round Pipe

The Mild Steel Round Pipe provides a reliable solution for light structural fabrication and general engineering projects requiring a balance of weight and rigidity. This 18-gauge hollow section features a 1.2mm wall thickness, making it suitable for applications where excessive weight must be avoided without compromising the structural profile. Contractors often select this specific diameter for framing, support rails, and protective barriers in both commercial and residential settings.

Built for the Job

This material serves as a staple in metalwork shops and construction sites due to its excellent weldability and ease of manipulation. The 1.2mm gauge allows for clean welds using standard ARC or MIG equipment without the high risk of burn-through associated with thinner foils. Site supervisors prefer this pipe for onsite modifications because it cuts quickly with standard abrasive discs and accepts various mechanical fasteners. The round profile ensures uniform strength under loading from any direction, making it a preferred choice for vertical supports and horizontal bracing in lightweight structures.

• Fabrication of security grilles, gates, and window guards for residential properties.

• Construction of lightweight shelving units and industrial storage racking systems.

• Assembly of handrails and balustrades in areas with low-impact requirements.

Product Highlights

Structural Integrity

The cold-rolled or hot-rolled finish provides a consistent outer diameter for precise fitment into standard joints.

Fabrication Readiness

• High weldability using standard workshop consumables and equipment.
• Uniform wall thickness ensures consistent bending performance across the length.

Technical Specifications

What’s Included

• 1 x 6-Meter Length of 1¼″ 18 Gauge Mild Steel Pipe

On-Site & Workshop Notes

• Store this material in a dry, covered area to prevent the formation of surface oxidation or flash rust before fabrication.

• Apply a high-quality zinc-phosphate primer or red oxide coating immediately after welding to protect the heat-affected zone.

• Verify the actual outside diameter if using specialized internal joiners, as tolerances can vary slightly between production batches.

• Use a 1mm ultra-thin cutting disc for the cleanest results and to minimize deburring time on the pipe ends.