Our comprehensive inventory of carbon steel tubular products is engineered to meet demanding structural and mechanical applications where large diameters and reduced wall thickness are critical. Among our specialized offerings, the Big Bore Light Wall Carbon Steel Welded Tube stands as a foundation for high-flow fluid systems and lightweight frameworks. This range also encompasses the Oversized Caliber Slim Wall Welded Steel Pipe, ideal for projects where space constraints demand maximum internal clearance without excessive weight. For industries requiring a balance of force resistance and material efficiency, our Broad Bore Thin Gauge Welded Steel Pipe delivers a reliable solution. Additionally, the Extra Large Size Light Wall Welded Tubing extends these capabilities into the most expansive dimensions, maintaining consistent wall uniformity and weld integrity. Each variant is produced from prime carbon steel coils through high-frequency welding processes, followed by rigorous dimensional checks and non-destructive testing to ensure conformance with international standards.
The Wide Diameter Low Thickness Carbon Steel Tube exemplifies precision engineering for applications that cannot compromise on inner volume or overall mass. Fabricated using ERW (Electric Resistance Welding) or spiral submerged arc welding techniques, these tubes achieve outstanding concentricity and straightness, allowing seamless integration into conveyance systems, architectural structures, and industrial machinery. The low wall thickness reduces raw material consumption while preserving essential mechanical properties, making the product exceptionally cost-effective for large-scale installations. Surface finishes are carefully controlled — available in black, pickled and oiled, or galvanized coatings — to provide additional corrosion resistance suitable for environments ranging from arid interiors to mildly aggressive outdoor conditions. End finishing options include plain, beveled, or grooved ends, accommodating various coupling and joining methods without extensive on-site preparation.
| Outer Diameter (inch) | Outer Diameter (mm) | Wall Thickness (inch) | Wall Thickness (mm) | Diameter Tolerance | Thickness Tolerance |
|---|---|---|---|---|---|
| 20 – 24 | 508 – 610 | 0.188 – 0.500 | 4.8 – 12.7 | ±1% | ±0.005 in / ±0.13 mm |
| 26 – 36 | 660 – 914 | 0.250 – 0.625 | 6.4 – 15.9 | ±1% | ±0.008 in / ±0.20 mm |
| 38 – 48 | 965 – 1220 | 0.312 – 0.750 | 7.9 – 19.1 | ±1% | ±0.010 in / ±0.25 mm |
| 50 – 60 | 1270 – 1524 | 0.375 – 0.875 | 9.5 – 22.2 | ±1% | ±0.012 in / ±0.30 mm |
| Grade | Yield Strength min. (psi / MPa) | Tensile Strength min. (psi / MPa) | Elongation min. (%) |
|---|---|---|---|
| ASTM A53 Gr. A | 30,000 / 205 | 48,000 / 330 | 22 |
| ASTM A500 Gr. B | 46,000 / 315 | 58,000 / 400 | 21 |
| API 5L Gr. B | 35,000 / 240 | 60,000 / 415 | 23 |
| EN 10219 S355J2H | 355 MPa | 470 – 630 MPa | 20 |
Every Wide Diameter Low Thickness Carbon Steel Tube shipment includes mill test certificates detailing chemical composition, hydrostatic test results, and dimensional reports. Our supply chain consistently fulfills orders across North America, Europe, and Asia with reduced lead times supported by mill-direct sourcing.
