Overview of ASTM A252 SSAW steel pipe

ASTM A252 is a widely recognized standard issued by the American Society for Testing and Materials (ASTM), covering welded and seamless steel pipes used in structural applications such as piling, foundation supports, and infrastructure development. This specification ensures that the steel pipes meet stringent requirements for mechanical strength, weldability, and long-term durability.

Spiral Submerged Arc Welded (SSAW) pipes manufactured under ASTM A252 are especially suited for bearing and casing applications, including bridge foundations, marine piling, and underground structures. The helical weld seam enhances their pressure resistance and load-bearing capacity, offering a cost-effective alternative to seamless pipes without compromising structural integrity. Here is an overview of ASTM A252 SSAW steel pipe.

Union Steel Industry Co., Ltd is professional SSAW steel pipe manufacturer, for more details, please contact:sales@union-steels.com

Leading ASTM A252 SSAW Steel Pipe Manufacturers (2025)

Selecting a reliable manufacturer is essential to ensure consistent quality, full compliance with ASTM A252 standards, and extended service life. Below are some of the top SSAW steel pipe producers in 2025:

1. Union Steel Industry Co., Ltd

Over 30 years of experience in steel pipe manufacturing

Operates 13 production lines for spiral welded pipes ranging from Φ219–Φ3500mm

Certified to ASTM A252, API 5L, and ISO 9001 standards

Annual production capacity: 400,000 tons

Offers various custom coatings: FBE, 3LPE, cement mortar lining

2. American SpiralWeld Pipe Company (USA)

A leading U.S. manufacturer specializing in ASTM A252-compliant pipes

Supplies steel pipes for large-scale infrastructure and foundation projects

3. Jindal SAW Ltd (India)

A key supplier of large-diameter welded steel pipes

Serves foundation piling and structural markets worldwide

4. ArcelorMittal (Europe)

One of the largest global steel producers

Manufactures ASTM A252-certified pipes for construction and industrial sectors

5. Welspun Corp Ltd (India)

A major manufacturer of spiral welded pipes

Serves marine piling, bridge construction, and underground support projects

ASTM A252 Spiral Welded Pipevs Other Pipe Standards

Why Choose ASTM A252 SSAW Steel Pipes?

ASTM A252 spiral welded steel pipes are widely preferred in structural engineering due to their reliable performance and cost-effectiveness. Key advantages include:

High Strength and Durability
Designed to withstand heavy loads, these pipes are ideal for demanding piling applications.

Cost-Effective for Large-Diameter Projects
Compared to seamless pipes, spiral welded pipes offer a more economical solution for large-scale infrastructure work.

Ideal for Challenging Applications
Perfectly suited for bridge foundations, marine piling, and underground structural supports.

Excellent Weldability and Easy Installation
Their consistent weld quality and formability make them easy to install on-site, even in complex environments.

ASTM A252 Spiral Welded Pipe: Welding Process & Manufacturing

The production of ASTM A252 spiral welded pipes involves rigorous quality control to ensure high mechanical strength, dimensional accuracy, and compliance with international piling standards. Below is a step-by-step overview of the manufacturing process:

1. Steel Coil Selection

High-quality carbon steel coils are chosen based on ASTM A252 material specifications.

Common steel grades include Grade 1, Grade 2, and Grade 3, with Grade 3 being the strongest and most frequently used.

2. Spiral Forming

The steel strip is fed into a spiral forming machine, where it is rolled into a helical shape.

The spiral seam structure enhances load-bearing capacity and internal pressure resistance, making it suitable for structural piling.

3. Submerged Arc Welding (SAW)

Double Submerged Arc Welding (DSAW) is employed to achieve strong, defect-free welds.

This process ensures deep weld penetration, excellent uniformity, and high stress resistance.

4. Quality Control & Testing

Ultrasonic and X-ray testing are conducted to detect internal and external flaws.

Hydrostatic pressure tests confirm the pipe’s ability to withstand high-pressure conditions.

Dimensional inspections verify straightness, wall thickness consistency, and accurate outer diameter.

5. Coating & Corrosion Protection

Pipes can be coated with Fusion Bonded Epoxy (FBE), 3-Layer Polyethylene (3LPE), or bitumen coatings to provide resistance against corrosion, moisture, and environmental exposure.

6. Final Inspection & Certification

Each pipe undergoes a final quality inspection to ensure compliance with ASTM A252, ISO 9001, and other relevant standards.

Pipes are marked with grade, size, heat number, and manufacturer’s name for full traceability and documentation.

Common Coating Options For ASTM A252 Pipes

ASTM A252 Spiral Welded Pipe for Water Transmission Projects

ASTM A252 spiral welded pipes play a crucial role in water transmission infrastructure, including water supply pipelines, drainage systems, and irrigation networks. Their structural strength and adaptability make them a reliable choice for transporting large volumes of water efficiently and safely.

Why Choose ASTM A252 Pipes for Water Transmission?

Exceptional Strength and Durability
Engineered to withstand high internal pressures and continuous flow in large-scale water transport systems.

Corrosion-Resistant Coatings for Long-Term Use
Compatible with coatings such as FBE and 3LPE, providing long-lasting protection against rust, moisture, and environmental degradation.

Cost-Effective Solution
Offers a more economical option compared to seamless pipes, particularly for large-diameter and long-distance applications.

Available in Large Diameters
Ideal for bulk water conveyance in municipal and agricultural projects, reducing the need for multiple smaller pipelines.

Comparing ASTM A252 vs Other Water Transmission Pipes

FAQ: ASTM A252 Spiral Welded Pipe