Big Bore Light Wall Carbon Steel Welded Tube

Large-scale infrastructure, industrial pipeline networks, and heavy machinery applications demand tubing that combines substantial inside diameter with controlled wall thickness to reduce weight and cost. Our Big Bore Light Wall Carbon Steel Welded Tube meets these requirements through precision manufacturing and strict quality control. Supplied as an Oversized Caliber Slim Wall Welded Steel Pipe, it maintains high flow efficiency while keeping structural load in check. When your design specifies a Wide Diameter Low Thickness Carbon Steel Tube, this product offers consistent roundness and dimensional tolerance for trouble-free fit-up. Fabricators also choose it as a Broad Bore Thin Gauge Welded Steel Pipe for architectural columns and lightweight trusses, while demanding projects utilize it as Extra Large Size Light Wall Welded Tubing for ventilation, agricultural conveyance, and support structures. The inherent formability of carbon steel combined with a smooth weld seam ensures reliable performance in both static and dynamic service conditions.

Every length of Big Bore Light Wall Carbon Steel Welded Tube is electric resistance welded (ERW) using hot-rolled strip conforming to multiple international specifications. The tube undergoes inline annealing of the weld zone, straightening, and rigorous online inspection including ultrasonic testing and hydrostatic evaluation where applicable. Standard carbon steel grades include ASTM A500 Grade B and Grade C, ASTM A53 Grade B, and API 5L equivalent chemistries, each offering specific yield and tensile strengths suited to different loading scenarios. The light wall configuration reduces overall tonnage without sacrificing bending resistance, making the product ideal for long-span applications. Below, key parameters and representative dimensions are outlined to assist in selection.

• Materials: ASTM A500 Gr. B/C, ASTM A53 Gr. B, API 5L Gr. B (X42 available upon request)
• Manufacturing process: ERW (Electric Resistance Welded), with post-weld heat treatment
• Outside diameter range: 8.625″ (219.1 mm) to 48″ (1219 mm), custom sizes up to 60″
• Wall thickness range: 0.188″ (4.8 mm) to 0.500″ (12.7 mm), standard light wall schedules
• Lengths: Random (20 ft / 6.1 m), 40 ft (12.2 m), or cut-to-length
• End finishes: Plain end, beveled end (30° +/-5°), threaded options for smaller diameters
• Surface condition: Black, oiled, hot-dip galvanized, or FBE coated
• Testing: Hydrostatic, eddy current, ultrasonic, and visual inspection; full mill test reports included
• Certifications: EN 10204 3.1, ISO 9001, and supplementary impact testing when specified

Typical Dimensional Examples – Big Bore Light Wall Carbon Steel Welded Tube