Products
30+ Years of Expertise in Steel Manufacturing
Spiral Welded Steel Pipe Manufacturer & Supplier
High-strength spiral welded pipes for fluid transportation, construction, and industrial applications.
Introduction
Spiral welded steel pipe (also known as helical seam welded pipe) is produced by continuously rolling steel strips into a cylindrical shape through a spiral forming process, with weld seams running spirally along the pipe’s length. This manufacturing method enables efficient production of large-diameter pipes, making it widely used in fluid transportation and structural applications.
Uses
1. Core Advantages
Large Diameter Capability: Specify the required outside diameter for the project; the supply specification is confirmed with the order. High-Efficiency Production: Automated continuous welding process ensures high output and consistent quality. Project Inspection Requirements: Agree the weld-inspection, pressure-test and acceptance requirements for the specified pipe and intended service before ordering. Material Cost Efficiency: Utilizes steel strips with over 90% material utilization rate, significantly reducing raw material waste.
2. Key Specifications
- Outside Diameter: Specify the required actual outside diameter in mm; confirm it with the order
- Wall Thickness: Specify the required nominal wall thickness and tolerance; confirm them with the order
- Length: Specify the required length per piece and quantity; confirm them with the order
- Material Grades: Carbon steel (e.g., Q235B, Q355B) or pipeline steel (e.g., L245, L360)
3. Production Process Flow
- Steel Coil Uncoiling: Leveling and cutting steel strips to required width
- Spiral Forming: Rolling steel strips into a helical cylindrical shape
- Internal & External Welding: Multi-wire submerged arc welding for simultaneous inner and outer seams
- Weld Seam Treatment: Weld finishing and non-destructive testing as required by the agreed product standard and inspection plan
- Sizing & Straightening: Ensuring roundness and straightness of the pipe body
- Cutting & Inspection: Cutting to specified lengths and conducting final quality checks
4. Main Applications
Oil & Gas Transportation: Long-distance pipelines for crude oil and natural gas, high-pressure transmission systems
Power Generation: Circulating water pipes in power plants, structural supports for desulfurization systems
Water Infrastructure: Water supply/drainage pipelines, pump station pressure pipes
Marine Engineering: Ballast water tanks, seawater piping systems
Mechanical Structures: Support frames for heavy equipment, bridge truss components
5.Specifications
Diameter: Confirm the actual outside diameter with the order
Wall Thickness: Confirm the nominal wall thickness and tolerance with the order
Length: Confirm length per piece and quantity with the order
Standard: Specify the exact product standard, edition and material grade required by the project
Looking for high-quality spiral welded steel pipes? Contact us on WhatsApp or fill in the form below to get pricing and specifications within 24 hours.