Product Introduction

Spiral Steel Pipe with Internal and External Anti-corrosion Coating is designed for project supply. Internally and externally coated spiral round steel pipe for large-diameter pressure fluid transport, water projects, oil and gas lines, and foundation casings.

 

Key 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.

 

Technical 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.

 

Ordering & Quality Documentation

Please provide the required steel grade, outside diameter or section dimensions, wall thickness, length, applicable standard, surface finish or coating, order quantity and delivery destination. If the pipe is intended for a specific system, include the design and inspection requirements.

 

For project procurement, specify any required material test certificate (MTC), inspection report, certificate of origin or other shipment documentation in your inquiry. Document type, availability and applicability must be confirmed for the exact material grade, shipment and order; no blanket certification is implied.

 

Product FAQ

Q: Which dimensions should be included in an inquiry?

A: Include outside dimensions, wall thickness, length, steel grade, required standard and order quantity.

 

Q: Can inspection documents be requested?

A: Specify the required inspection or material documents in the inquiry; availability must be confirmed for the selected product and supply batch.

 

Request a Quote

Send MGTSP the required product specification, quantity and destination for a quotation. Any listed grades, processing options, inspection documents and delivery terms remain subject to order confirmation.