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Large Diameter SSAW Spiral Welded Anti-Corrosion Steel Pipe for Fluid Transmission

Fuyuansheng Heavy Wall Anti-Corrosion Spiral Steel Pipe is manufactured using Spiral Submerged Arc Welding (SSAW) technology and designed for demanding pipeline, infrastructure, water transportation, piling, and industrial applications. Available in large diameters, heavy wall thicknesses, customized lengths, and professional anti-corrosion surface treatments, the pipe provides reliable structural strength, dimensional stability, and long-term protection in challenging environments.

Categories: Spiral welded steel pipe
standard: ASTM/EN/JIS/GB
Shape: Shape
Thickness: 4-32mm
Length: 5.8-40m
Processing Service: Processing Service:
dimensional tolerance: ±2%

Product Introduction

This large diameter SSAW steel pipe is manufactured by forming steel coils into a spiral shape and welding the seam through the submerged arc welding process. The production method is well suited for large-diameter pipes used in long-distance fluid transmission and infrastructure projects.

The pipe can be supplied with different steel grades, dimensions, lengths and pipe ends. Anti-corrosion treatments such as 3PE, 2PE and epoxy coating are available according to the pipeline environment and project requirements.

3PE anti-corrosion coating on large diameter SSAW steel pipe (1)

Product Parameters

Item	Specification
Product Name	Large Diameter SSAW Spiral Welded Steel Pipe
Manufacturing Process	Spiral Submerged Arc Welding (SSAW)
Material	Carbon Steel
Outside Diameter	219–4020 mm
Wall Thickness	6–28 mm
Length	3–24 m or customized
Steel Grade	Q195, Q235, Q345, API grades and others
Standards	API 5L, ASTM A53, EN10219, EN10210, JIS G3466, GB/T9711
Pipe Ends	Plain, beveled or customized
Surface Treatment	Black painted, 3PE, 2PE, epoxy or customized
Inspection	UT, RT, Hydrostatic Testing

Specifications can be customized according to specific project requirements.

3PE anti-corrosion coating on large diameter SSAW steel pipe (2)

Advantage

Large Diameter Design
Suitable for fluid transmission systems requiring high flow capacity and large pipe diameters.

SSAW Welding Process
Spiral submerged arc welding is suitable for manufacturing large-diameter steel pipes with consistent dimensions and reliable weld quality.

Flexible Specifications
Diameter, wall thickness, pipe length, steel grade and pipe ends can be customized for different projects.

Anti-Corrosion Protection
Multiple coating options help protect the pipe against moisture, soil and atmospheric corrosion.

Quality Inspection
UT, RT and hydrostatic testing can be arranged according to applicable standards and customer requirements.

Applications

The pipe is suitable for a wide range of fluid transmission and infrastructure applications:
● Water Transmission – Municipal water supply and long-distance water pipelines.
● Oil & Gas Transmission – Oil, natural gas and other fluid transportation systems.
● Drainage & Irrigation – Municipal drainage, irrigation and water management projects.
● Industrial Fluid Transmission – Industrial water, process fluids and utility pipelines.
● Infrastructure Projects – Large-scale pipeline and supporting infrastructure applications.

Large diameter spiral welded steel pipe production

Large diameter steel pipe for water transmission pipeline (2)

Why Choose Fuyuansheng?

Fuyuansheng provides large diameter SSAW steel pipes for fluid transmission, infrastructure and industrial pipeline projects.

Customers can specify the required diameter, wall thickness, steel grade, length, coating, pipe ends and inspection requirements. Technical specifications and production details can be confirmed according to each project.

FAQs

Q1. What is an SSAW spiral welded steel pipe?

A1: SSAW stands for Spiral Submerged Arc Welded steel pipe. Steel coil is formed into a spiral shape and welded along the spiral seam using submerged arc welding.
Q2. What are large diameter SSAW pipes used for?

A2: They are mainly used for water, oil, gas, drainage, irrigation and industrial fluid transmission, as well as related infrastructure projects.
Q3. Can the SSAW pipe be supplied with anti-corrosion coating?

A3: Yes. 3PE, 2PE, epoxy and other anti-corrosion coatings can be supplied according to the pipeline environment and customer requirements.
Q4. What sizes are available?

A4: The referenced product range covers outside diameters of approximately 219–4020 mm and wall thicknesses of 6–28 mm. Customized specifications can be discussed according to project requirements.
Q5. What testing can be provided?

A5: Common inspection options include UT, RT and hydrostatic testing. Additional inspection requirements can be arranged according to the applicable standard.