Our comprehensive range of thick-walled stainless steel tubing addresses the toughest industrial challenges with uncompromised durability and corrosion resistance. For environments demanding extra reinforcement, the Reinforced Wall Welded Stainless Tubing integrates additional structural layers to resist deformation under extreme pressure. In electrical and protection systems, the Bulky Wall Stainless Welded Conduit shields cables with a heavy-duty profile that withstands impact and harsh weather. When applications require maximum density and leak-tight performance, our Dense Wall Stainless Steel Welded Pipe series delivers a seamless-like solidity through advanced weld consolidation. Additionally, the Robust Gauge Welded Stainless Tube is engineered with thicker gauge materials to guarantee long service life in high-stress transfer lines. Every tube in these families is produced under strict ISO and ASTM standards, leveraging cold forming and precision welding to maintain uniform mechanical properties across the entire length.
Rigid Wall Stainless Steel Welded Tube is constructed using premium austenitic and duplex stainless grades, cold-rolled into tubular form and longitudinally welded without filler metal. The result is a consistently dense wall structure with absence of porosity, able to handle operating pressures up to several thousand psi. The tube’s rigid design resists ovality and collapse in bent sections, making it ideal for hydraulic lines, instrumentation conduits, heat exchangers, and structural frameworks. Post-weld inline heat treatment and rapid cooling restore full corrosion resistance, while optional pickling and passivation remove surface oxides. Below is a detailed specification breakdown that reflects typical sizes and capabilities we offer.
| Parameter | Standard Specification | Optional/Extended Range |
|---|---|---|
| Material Grade | TP316/316L (1.4401/1.4404) | 254 SMO, 904L, super duplex, Inconel |
| Outside Diameter | 10.0 mm – 114.3 mm | Up to 219.1 mm |
| Wall Thickness | 1.0 mm – 8.0 mm (8% to 10% of OD) | 0.5 mm – 20.0 mm |
| Tolerance (OD) | ±0.10 mm for OD ≤ 38 mm; ±0.75% for larger | Tighter tolerances on request |
| Weld Efficiency | 100% (full penetration, uniform) | - |
| Annealing Condition | Solution annealed at 1040°C–1100°C | Quenched in protective atmosphere |
| Hardness (max) | 90 HRB for most austenitic grades | Check specific duplex hardness |
| End Finishing | Plain ends, beveled, threaded | Grooved, flared, or couplings |
| Marking & Traceability | Laser etched per heat number, size, spec | Full MTR documentation |
In addition to standard catalog dimensions, Rigid Wall Stainless Steel Welded Tube can be cut, bent, and end-finished according to your assembly drawings. The integrated manufacturing approach ensures consistent weld integrity from batch to batch, reducing installation risks and maintenance downtime.
