Products
Latest Products
Spiral Steel Pipe with Internal and External Anti-corrosion Coating
Internally and externally coated spiral round steel pipe for large-diameter pressure fluid transport, water projects, oil and gas lines, and foundation casings.
| Material: | Q235B/Q235C/Q355B/Q355C/Q355ND; ASTM A36/A572 Gr50; EN S235/S355 series; JIS SS400/SM490; Russian St and 09G2S grades; stainless steel available |
| Pipe Type: | Spiral welded steel pipe |
| Size Range: | DN200-DN3000, wall thickness 6-16 mm |
| Length: | Common 12 m; cutting, flanging, and anti-corrosion processing available |
| Coating: | TPEP internal/external coating, 3PE, epoxy coal-tar coating, or IPN8710 potable-water coating |
Product Features
- Spiral submerged-arc welded forming creates a round hollow section with uniform pressure distribution.
- Continuous welds can be hydrotested and inspected for stable sealing performance.
- Internal and external anti-corrosion layers resist acids, alkalis, groundwater, and buried service conditions.
- Diameter, wall thickness, length, bevels, and coating systems can be customized for project requirements.
Common Specifications
- Material: Q235B/Q235C/Q355B/Q355C/Q355ND; ASTM A36/A572 Gr50; EN S235/S355 series; JIS SS400/SM490; Russian St and 09G2S grades; stainless steel available
- Pipe Type: Spiral welded steel pipe
- Size Range: DN200-DN3000, wall thickness 6-16 mm
- Length: Common 12 m; cutting, flanging, and anti-corrosion processing available
- Coating: TPEP internal/external coating, 3PE, epoxy coal-tar coating, or IPN8710 potable-water coating
Applications
- Municipal water mains, sewage pipelines, rainwater drainage, and flood-discharge systems
- Reservoir water diversion, river works, irrigation, and large-diameter water-transfer projects
- Low-pressure gas, crude oil, and wastewater medium transport lines
- Bridge, wind-power, and building foundation large-diameter steel casings
