Large Diameters SSAW Steel Pipe

When it comes to large-scale infrastructure—be it cross-country water transmission, offshore piling, or high-pressure energy sectors—the integrity of the piping is non-negotiable. At JSFITTINGS, we leverage four decades of manufacturing expertise to produce Large Diameter SSAW (Spiral Submerged Arc Welded) steel pipes that bridge the gap between cost-efficiency and uncompromising structural strength.

Technical Specifications: Built to Scale

Large diameter ssaw steel pipes require specialized forming technology to maintain roundness and weld integrity. Our production lines are optimized for the following parameters:

Compliance & International Standards

Our Large Diameter SSAW pipes are engineered and tested to meet the world’s most stringent regulatory requirements. We provide full MTC (Mill Test Certificates) with every shipment.
Energy Sector: API 5L (PSL1 & PSL2) – Ensuring safety in oil, gas, and hydrocarbon transport.
Structural & Piling: ASTM A252 & EN 10219 – Optimized for load-bearing capacity in bridge and marine foundations.
Water Supply: AWWA C200 & DIN 2460 – Certified for municipal water pipelines and irrigation systems.

Why SSAW for Large Diameter Projects?

Large diameter pipes can be produced via LSAW or SSAW. However, the Spiral advantage offers distinct benefits for project managers:
Versatility in Sizing: We can produce a wide variety of large diameters from a single width of steel strip, allowing for faster production cycles.
Increased Rigidity: The spiral weld seam acts as a structural reinforcement, providing superior resistance against internal pressure and external crushing loads.
Cost-Efficiency: For diameters exceeding 800mm, SSAW typically offers a more economical solution without sacrificing the mechanical properties required for heavy-duty use.

Industry Applications

Our ssaw steel pipes serve as the “arteries” of industrial development across various sectors:

• Marine & Foundation Piling: High-strength steel casing for bridges, piers, and skyscrapers.
• Low-Pressure Fluid Transport: Reliable main lines for municipal water, sewage, and drainage.
• Hydroelectric Power: Penstocks and cooling water circulation systems.
• Dredging Operations: High-diameter pipes for sand and slurry transport in coastal reclamation.
• The 40-Year Advantage: Why Engineers Trust JSFITTINGS.

Buying Guide: How to Request a Quote

For large diameter steel pipe projects, the more detail provided, the more accurate our technical assessment. Please include:
Dimensions: Precise OD and Wall Thickness.
Application: Is it for piling (ASTM A252) or fluid transport (API 5L)?
Environment: Will the pipe be buried or underwater? (This determines the coating type).
Delivery Site: Large pipes involve complex logistics; please specify the destination port for a landed cost estimate.

Partner with a Legacy Manufacturer

Leverage 40 years of industrial expertise for your next project. Our engineering team is available for technical consultations to help you select the optimal steel grade and coating for your specific environment.