Name: Spiral Welded Steel Pipe China Factory Leading Industrial Pipe Suppliers
Availability: InStock
Rating: 4.5 (89 reviews)

Spiral Welded Steel Pipe China Factory Leading Industrial Pipe Suppliers

Premium spiral welded steel pipes from a leading China factory. As professional suppliers, we offer API 5L and ASTM standard pipes for oil, gas, and water projects, featuring DSAW welding and superior pressure resistance.

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Product Details

Spiral Welded Steel Pipes are high-performance pipeline solutions engineered for large-diameter and high-pressure applications. By utilizing advanced spiral forming and Double Submerged Arc Welding (DSAW), these pipes offer exceptional structural integrity and uniform stress distribution, making them the premier choice for long-distance fluid transmission and heavy-duty structural support.

Manufactured in strict accordance with international standards such as API 5L and ASTM A252/A53, our spiral welded pipes combine superior mechanical strength with cost-efficiency. Whether for oil and gas transit, municipal water works, or industrial piling, these pipes provide a durable, customizable, and scalable alternative to seamless and longitudinal welded options.

Detailed Parameters

Executive Standards	ASTM A252, ASTM A53, API 5L	Common Materials	Low-carbon/Low-alloy Steel (A252 Gr.1/2/3, API 5L B/X42-X70)
Outer Diameter	219.1mm (8") to 3620mm (142.5") or larger	Wall Thickness	3.0mm to 25.4mm (Custom thicker options available)
Standard Length	6 to 12 meters (Fixed or Random lengths)	End Treatment	Plain end, Beveled end (V-bevel), Flanged, or Threaded
Welding Process	DSAW (Double Submerged Arc Welding) or ERW	Inspection Methods	X-Ray, Ultrasonic Testing (UT), Magnetic Particle Testing (MT)
Anti-Corrosion	3PE, FBE, Epoxy Coal Tar, Galvanization	Surface Quality	High-precision roundness and dimensional consistency

Key Advantages

High Strength & Toughness

Utilizing high-grade steel strips and normalization heat treatment to withstand extreme operating pressures and external loads.

Superior Pressure Resistance

The helical weld angle ensures uniform stress distribution and better fatigue resistance than longitudinal welds.

Outstanding Economy

High raw material utilization and lower production costs, especially for large-diameter pipeline projects.

Customized Corrosion Protection

Available in 3PE, FBE, and galvanized coatings to extend service life in soil, seawater, or chemical environments.

100% Weld Inspection

Rigorous NDT testing including X-Ray and UT ensures zero defects, eliminating porosity and slag inclusion.

Versatile Application

Ideally suited for oil & gas, municipal sewage, bridge piling, and industrial chemical transmission.

Product Gallery

Management Platforms

Raw Material Sourcing

Strict procurement from certified mills with mandatory mill certificates for all steel strips.

Production Control

Real-time monitoring of forming angles and welding parameters to ensure dimensional accuracy.

Quality Assurance

Comprehensive testing including hydrostatic tests and chemical composition analysis.

Certification Compliance

Full adherence to ISO 9001 and API 5L standards for international project acceptance.

Packaging Integrity

Protective end caps and steel strip bundling to prevent deformation during transit.

Logistics Optimization

Specialized road, rail, and sea freight solutions for large-diameter pipe delivery.

Investment Return Comparison

Comparison Item	Spiral Welded Pipe	Longitudinal/Seamless
Large Diameter Capability	Highly Advantageous	Limited/High Difficulty
Pressure Distribution	Uniform/Superior	Concentrated/Lower Fatigue
Production Efficiency	High (Mass Production)	Medium to Low
Raw Material Cost	Lower (High Utilization)	Higher (Billet Dependent)
Overall Cost-Effectiveness	Excellent for Large Projects	Moderate to Low

Frequently Asked Questions

Q: What are the primary applications of Spiral Welded Steel Pipes?

They are widely used in oil and gas transmission, municipal water supply and drainage, building structural columns, and chemical raw material pipelines.

Q: How does the spiral weld compare to the longitudinal weld?

Spiral welds provide more uniform stress distribution and superior fatigue resistance under high pressure, making them more stable for long-distance pipelines.

Q: Which international standards do these pipes comply with?

Our products are manufactured according to API 5L, ASTM A252, and ASTM A53 standards, with ISO 9001 quality management certification.

Q: What anti-corrosion options are available for harsh environments?

We offer 3-layer Polyethylene (3PE), Fusion-Bonded Epoxy (FBE), epoxy coal tar pitch coatings, and galvanization depending on the service environment.

Q: How is the weld quality guaranteed?

We use Double Submerged Arc Welding (DSAW) combined with 100% Non-Destructive Testing (NDT) including X-Ray, Ultrasonic, and Magnetic Particle inspection.

Q: Can the pipe dimensions be customized?

Yes, we provide a wide range of diameters from 219.1mm to over 3620mm, with customizable wall thicknesses and end treatments to meet specific project needs.

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