Category: Structural Tubes & Precision Tubes

Structural Tubes & Precision Tubes from Newton bring together the steel tube products used as load-bearing structural members and precision mechanical components, distinct from pipes intended for fluid or gas conveyance. This category spans square and rectangular hollow sections and round structural tubes used in building frames, architectural facades and fabrication, alongside precision cold-drawn tubes and boiler and heat-exchanger tubes engineered for tight dimensional tolerance and thermal performance.

Manufactured to IS 4923, DIN 2391, ASTM A519, ASTM A179, ASTM A210 and ASTM A213, these tubes are produced through continuous ERW forming or multi-pass cold-drawing processes to achieve consistent wall thickness, straightness and surface finish. Structural hollow sections range from 20mm x 20mm square sections up to 400mm x 200mm rectangular profiles and 610mm OD round tubes, while precision and heat-exchanger tubes range from 6mm to 200mm OD, engineered for applications where dimensional accuracy directly affects performance.

Structural sections in this category are used in building columns, purlins, roof trusses, industrial sheds, vehicle chassis, staircases, railings and modern architectural facades where a clean, load-bearing profile is required. Precision cold-drawn tubes serve hydraulic and pneumatic cylinders, automotive components and bearing races, while boiler and heat-exchanger tubes are specified for industrial boilers, condensers, superheaters and shell-and-tube heat exchangers across power generation and process industries.

Newton sources Structural Tubes & Precision Tubes from India’s specialized ERW and cold-drawing tube mills, each with dedicated forming, heat-treatment and testing capability suited to structural or precision-grade production. Every batch is verified for dimensional tolerance, straightness and mechanical properties, with mill test certificates issued against each order. This makes the category a practical single sourcing point for structural steel buyers, fabricators and equipment manufacturers assembling multi-item project orders for construction, transport or industrial equipment use.