Wide Bore Stout Wall Stainless Welded Tubing

Wide Bore Stout Wall Stainless Welded Tubing is engineered for heavy-duty applications that demand both generous internal clearance and exceptional structural integrity. Our portfolio includes the Big Bore Heavy Gauge Stainless Welded Tube, which delivers outstanding pressure resistance for fluid transport systems, alongside the Oversized Diameter Robust Wall Stainless Pipe that excels in structural frameworks and high-load supports. For operations requiring the highest volumetric throughput, the Extra Large Caliber Heavy Section Steel Pipe minimizes flow restriction, while the Broad Diameter Solid Wall Stainless Welded Tube guarantees extended corrosion endurance in aggressive chemical environments. Each pipe is fabricated using longitudinal or spiral submerged arc welding, followed by rigorous non-destructive testing to confirm weld integrity and dimensional accuracy.

Focused on heavy-wall construction, the Wide Bore Stout Wall Stainless Welded Tubing offers unmatched reliability in high-pressure, high-temperature, and vibration-prone settings. Available in austenitic grades such as 304/304L and 316/316L, it provides superior resistance to intergranular corrosion, pitting, and stress cracking. The product also includes duplex and super duplex options for offshore and marine chloride-rich conditions. Typical applications span chemical reactors, heat exchangers, hydraulic cylinders, process piping in refineries, and structural columns where safety factors demand extra wall thickness. Every length is supplied with square-cut ends or beveled preparations to simplify on-site welding and reduce installation downtime.

• Wide inner diameters from 8" to 60" (DN200–DN1500) with custom sizes available
• Heavy wall schedules: SCH 40, SCH 80, SCH 160, and XXS up to 2.5" (63.5 mm) thick
• Welded manufacturing per ASTM A312, A358, A778, and ASME SA312 standards
• Full penetration butt welds with 100% radiographic or ultrasonic inspection upon request
• Solution annealed and pickled finish for enhanced surface passivation
• Optional features: hydrostatic testing, positive material identification (PMI), and 3.1 material certificates