Large Diameter Spiral Welded Pipe for Infrastructure

Shunchen is a manufacturer and supplier of Large Diameter Spiral Welded Pipe for Infrastructure. Below you will find technical specifications, material grades, spiral forming and double-sided submerged arc welding details, 3PE/FBE/epoxy coating options, quality control procedures, factory capacity and customization capabilities.

Product Features

Large Diameter Design For High Flow Transportation

With an outer diameter range of 711 mm to 3620 mm, the Large Diameter Spiral Welded Pipe for Infrastructure is designed for large-volume transportation systems. The large internal flow area helps improve transportation efficiency in water supply, drainage, and energy pipeline projects.

Spiral Welded Structure With Stable Mechanical Performance

The spiral seam structure allows the pipe to achieve uniform forming and stable dimensions during production. Double-sided submerged arc welding is applied to improve weld consistency and sealing performance.

Flexible Specification Customization

Large Diameter Spiral Welded Pipe can be customized according to:Pipeline diameter requirements, Operating pressure, Wall thickness, Steel grade, Anti-corrosion treatment and Project installation conditions. 

This allows the pipe to match different engineering designs and construction requirements.

Suitable For Underground And Complex Environments

With appropriate surface protection systems, the pipe can be used in underground pipelines, water projects, and industrial transportation systems exposed to moisture, soil pressure, and external environmental factors.

Technical Specifications

Manufacturing Process

Steel Strip Preparation

Hot-rolled steel strips are selected according to the required strength grade and specification. The raw material is inspected before production.

Spiral Forming

The steel strip is continuously formed into a spiral pipe shape under controlled forming conditions. This process allows production of Large Diameter Spiral Welded Pipe for Infrastructure with flexible dimensions.

Double-sided Submerged Arc Welding

The spiral seam is welded from both internal and external sides using submerged arc welding technology to improve weld strength and sealing performance.

Inspection And Testing

Each pipe undergoes quality inspection procedures, including:

· Dimensional inspection

· Weld inspection

· Surface inspection

· Non-destructive testing according to project requirements

Material Options

Applications

Water Transmission And Water Supply Systems

Large Diameter Spiral Welded Pipe is used for:Long-distance water transmission pipelines, Municipal water supply networks, Agricultural irrigation systems and Flood control and drainage projects. 

The large diameter design supports high-volume water transportation.

Oil And Gas Transportation Pipelines

The Large Diameter Spiral Welded Pipe for Infrastructure is suitable for:Crude oil pipelines, Natural gas transmission systems and Refined oil transportation. 

Pipeline steel grades and anti-corrosion coatings can be selected according to pressure and environmental requirements.

Municipal Infrastructure Projects

Common applications include:Urban drainage systems, Underground pipeline networks and Industrial water circulation systems. 

Structural And Engineering Applications

The pipe can also be used as a structural component in:Foundation engineering, Bridge-related projects and Large construction support systems.

Anti-Corrosion Protection Options

Different coating systems can be selected according to operating environments:

Quality Control

Shunchen controls product quality through inspection from raw material selection to finished pipe delivery.

Quality control includes:

· Raw material verification

· Welding process monitoring

· Dimensional inspection

· Weld quality testing

· Surface coating inspection

· Documentation according to project requirements

Inspection reports and quality documents can be provided according to customer requirements.

Factory Capacity

Tianjin Shunchen Hongye Enterprise Management Co., Ltd. was established in 2014 and has developed from a steel trading company into an industrial group integrating steel processing, surface treatment, logistics, and international trade.

Key production capabilities include:

· More than 300 employees

· Annual production capacity exceeding 450,000 tons

· Over 40,000 m² production and warehouse area

· Multiple hot-dip galvanizing lines

· Anti-corrosion spraying production lines

· Steel structure processing facilities

The company has obtained ISO 9001 quality management system certification and provides steel products for domestic and international engineering projects.

FAQ

What is the maximum diameter of Large Diameter Spiral Welded Pipe?

The standard outer diameter range is 711 mm to 3620 mm. Larger diameters can be discussed according to project requirements.

What standards are available for spiral welded pipes?

The Large Diameter Spiral Welded Pipe for Infrastructure can be manufactured according to standards including GB/T9711, API 5L, GB/T3091, and SY/T5037.

What materials can be used for large diameter spiral welded pipes?

Available materials include Q235B, Q345B, pipeline steel grades such as L245-L555, and API grades such as X42-X80.

What applications are large diameter spiral welded pipes used for?

They are commonly used in water transmission, drainage systems, oil and gas pipelines, municipal infrastructure, and industrial pipeline projects.

Can the pipe length and coating be customized?

Yes. Pipe length, wall thickness, steel grade, and anti-corrosion coating can be customized according to project requirements.