Small Gauge Spiral Welded Tube

Small Gauge Spiral Welded Tube: Durable and Efficient Steel Tubing Solutions

For applications requiring reliable, continuous, and structurally sound steel tubing in smaller diameters, our precision-engineered Small Gauge Spiral Welded Tube is the premier choice. This advanced manufacturing process involves helically forming and welding steel strips to produce a tube characterized by superior strength-to-weight ratios and exceptional uniformity. It is ideally suited for a wide range of uses including mechanical structures, fluid conveyance, piling, and fencing. We also offer specialized variations to meet diverse project needs, such as the Small Size Spiral Welded Pipe for general construction, the Small Bore Spiral Welded Tube for precise instrumentation lines, the Small Caliber Spiral Steel Pipe for low-pressure fluid systems, and the Mini Diameter Spiral Welded Pipe for compact, space-constrained installations.

The inherent advantages of the Small Gauge Spiral Welded Tube stem from its unique helical seam. This design distributes internal pressure more evenly around the circumference compared to longitudinally welded pipes, resulting in enhanced burst pressure resistance. The spiral weld also contributes to greater flexibility and resilience against bending stresses. Our production process utilizes state-of-the-art automated welding and non-destructive testing to ensure every length meets stringent quality standards for weld integrity, dimensional accuracy, and surface finish.

Key Product Parameters & Specifications

Our Small Gauge Spiral Welded Tube is manufactured to exacting specifications, offering versatility for engineers and project managers.

Primary Materials: Carbon Steel (Q235, Q345), Stainless Steel (304, 316L), Low-Alloy High-Strength Steel.
Manufacturing Standard: Compliant with ASTM A139, ASTM A252, EN 10219, and other international standards.
Welding Process: Submerged Arc Welding (SAW) or High-Frequency Welding (HFW) for consistent, high-quality seams.
Common Applications: Structural supports, handrails, fluid transport lines, piling, agricultural equipment, and protective fencing.
Key Advantages: Excellent dimensional consistency, high strength, good ovality, cost-effectiveness for long lengths, and smooth internal surface.

Outer Diameter (OD) Range	Wall Thickness Range	Standard Length	Surface Treatment	End Finish
21.3 mm (1/2") to 406.4 mm (16")	1.0 mm to 12.7 mm	6 meters (fixed) or 12 meters (fixed), custom lengths available	Bare, Black Paint, Galvanized (Hot-Dip or Electro), Epoxy Coated	Plain End, Beveled End, Threaded (upon request)

Detailed Technical Data

Grade	Yield Strength (Min)	Tensile Strength	Elongation	Chemical Composition Highlights
Q235 / ASTM A36	235 MPa	370-500 MPa	≥25%	C, Mn, Si, P, S controlled
Q345 / ASTM A572 Gr. 50	345 MPa	490-620 MPa	≥21%	Higher Mn content for strength
Stainless Steel 304	205 MPa	515 MPa	≥40%	18% Cr, 8% Ni for corrosion resistance

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Small Gauge Spiral Welded Tube