Round Structural Steel Tubes

Round Structural Steel Tubes from Newton are electric resistance welded circular hollow sections manufactured for structural, architectural and general fabrication use, offering uniform strength in every direction along the tube’s circumference. Their round profile is a common choice wherever a structural member must combine strength with a clean, continuous surface for cladding, handrails or exposed architectural steelwork.

Round Structural Steel Tubes

Newton’s round structural tubes range from 21.3mm OD up to 610mm OD, with wall thicknesses from 1.6mm to 16mm, manufactured from hot-rolled steel coil through a continuous high-frequency ERW process for dimensional consistency and a smooth, straight tube body. Finishes include mill black and hot-dip galvanized, and tubes are available in standard 6m mill lengths or custom cut-to-length for project-specific fabrication.

These tubes are used across structural steel frameworks, columns and bracing, scaffolding systems, staircases and handrails, street furniture and lighting poles, agricultural equipment, and general mechanical fabrication. Their round profile also lends itself to architectural applications such as balustrades, canopy supports and facade elements where visual consistency along the tube length is important.

Every batch is checked for outer diameter, wall thickness, ovality and straightness, along with mechanical property verification for yield strength, tensile strength and elongation, backed by mill test certificates for each dispatch. Newton offers both standard commercial-grade tubes and higher structural grades to match project load and code requirements.

Newton sources round structural tubes from leading Indian ERW tube manufacturers, consolidating orders across diameters, thicknesses and finishes into a single export-ready shipment. Buyers benefit from centralized quality documentation, itemized packing lists, and export logistics management, making it straightforward to combine round tubes with other structural steel items in one consignment.