Spiral Weld Technology (SSAW)
Most spirally welded steel pipe is manufactured to order based on specific outer diameter, wall thickness, and grade requirements. Because the manufacturing process uses continuous steel coils rather than fixed-width plates, spiral pipe offers incomparable turnaround times for custom lengths.
Spiral pipe is the economical choice for large-diameter projects. The "spiral" seam acts as a stiffener, providing the pipe with excellent hoop strength and straightness reliability throughout its cycle life.
Manufacturing Capabilities
Distributors and manufacturers supply the construction industry with a range of material conditions, including Prime API, New Mill Reject, and Surplus.
Due to the flexibility of the forming process, mills can produce a vast variety of diameters without expensive re-tooling. Standard production capabilities include:
| Specification | Range / Capability |
|---|---|
| Outer Diameter (OD) | 16.00" - 96.00" (Custom larger sizes available) |
| Wall Thickness | 0.250" - 0.750" |
| Length | Up to 80ft (Transport limited) |
| Common Grades | ASTM A252, API 5L, AWWA C200 |
Common Applications
Spiral pipe is versatile. If you are unsure if it fits your specific application, always consult a verified supplier. Typical uses include:
- Dredging & Slurry: Abrasion-resistant transport lines.
- Piling: Deep foundation pillars and load-bearing piles.
- Marine: Floating docks and caissons.
- Infrastructure: Road casing and road boring.
- Water: Penstocks and treatment lines.
- Fabrication: Structural columns and sign poles.
Coatings & Linings
To extend service life in corrosive environments (such as saltwater or acidic soil), spiral pipe can be coated with various protective systems:
- Fusion Bond Epoxy (FBE): A powder coating applied to heated pipe for superior adhesion.
- Coal Tar Epoxy: A durable, high-build coating often used for immersion service.
- Galvanizing: Hot-dip zinc coating for atmospheric protection.
Browse Suppliers
Manufacturing Methods
Need to calculate weight?
Use our calculator to estimate shipping weights for spiral pipe loads.
Go to Calculator