API 5L Large Diameter Spiral Pipe
For demanding industrial and infrastructure projects requiring robust, high-capacity fluid conveyance, API 5L Large Diameter Spiral Pipe represents the pinnacle of engineered solutions. This product is manufactured to comply with the stringent specifications of the API 5L standard, ensuring superior performance for the transmission of oil, gas, and other hydrocarbons. Its spiral welded construction provides exceptional structural integrity and dimensional stability, making it an ideal choice for long-distance pipelines, piling applications, and large-scale water projects. For foundational support in construction, our ASTM A252 Spiral Piling Pipe offers unmatched strength. In water and wastewater systems, engineers consistently rely on the durability of AWWA C200 Spiral Welded Steel Pipe. Specialized applications, such as land reclamation and sediment transport, benefit from our Large Diameter Spiral Pipe for Dredging, while the energy sector utilizes our Spiral Welded Casing Pipe for Oil And Gas for well integrity and production.
The manufacturing excellence behind API 5L Large Diameter Spiral Pipe lies in its precise helical seam welding process. This method involves forming a continuous strip of high-grade steel into a cylindrical shape through a spiral roll formation, followed by automatic submerged-arc welding (SAW) both inside and outside. This results in a uniform weld seam that is often stronger than the base metal itself. The spiral configuration allows for the production of pipes with significantly larger diameters compared to longitudinal welded pipes, without compromising on wall thickness or overall strength. This makes API 5L Large Diameter Spiral Pipe exceptionally resistant to internal pressure, external loads, and environmental stresses, guaranteeing a long service life in even the most challenging terrains and operating conditions.
Key Specifications & Parameters
- Standard Compliance: API 5L PSL1 / PSL2 (Includes Grades B, X42 to X80)
- Diameter Range (OD): 20 inches (508 mm) to 100 inches (2540 mm) and above
- Wall Thickness: 6.0 mm to 25.4 mm (0.236" to 1.0")
- Length: Typically 6 meters to 12.2 meters (20 ft to 40 ft), or as per client requirement
- Welding Process: Double-sided Submerged Arc Welding (DSAW)
- End Finish: Beveled end, plain end, or with protective caps
- Coating: External (FBE, 3LPE, 3LPP) and Internal (FBE, Cement Lining) options available
| API 5L Grade | Yield Strength (Min) MPa | Tensile Strength (Min) MPa | Typical Application |
|---|---|---|---|
| B | 241 | 414 | Low-pressure water lines, general purpose |
| X42 | 290 | 415 | Onshore gathering lines |
| X52 | 359 | 455 | Medium-pressure oil & gas transmission |
| X65 | 448 | 535 | High-pressure mainline pipelines |
| X80 | 551 | 621 | Arctic & deepwater projects, high-strength requirements |
Our production facility integrates advanced ultrasonic testing (UT), radiographic inspection (RT), and hydrostatic pressure testing to verify the quality of every API 5L Large Diameter Spiral Pipe before dispatch. We also offer comprehensive certification packages including Mill Test Certificates (MTC), Material Test Reports (MTR), and compliance documentation per API 5L and other relevant international norms.
Related Products
Hot Products
Embedded Steel Plate
As the professional manufacturer, Shunchen industry would like to provide you high quality Embedded Steel Plate. Embedded steel plates, as metal connectors embedded in concrete components (walls, floors, columns, etc.) in advance, are key transition bridges between building structures and auxiliary components. It is mostly made of carbon steel or stainless steel, which is cut, welded and anti-corrosion treated. Bolt holes or welded nodes are reserved on the surface to facilitate accurate connection with curtain wall brackets and component bases.
U Channel Steel
The U Channel Steel from Tianjin Shunchen Industrial factory is a hot-rolled long strip steel with a groove-shaped cross section, consisting of a web plate and two parallel flanges on both sides. It is a widely used basic load-bearing profile in steel structure engineering. Leveraging the mechanical advantages of its groove-shaped cross section, U Channel Steel can efficiently withstand longitudinal pressure, lateral loads, and bending moments. It can be used as a load-bearing component alone or combined with welding and bolt connections to form complex steel structures, meeting the load-bearing and supporting needs in various fields such as construction, machinery, and infrastructure. It is the preferred steel material for enhancing the stability and economy of engineering structures.
High Precision Square Tube
Shunchen industry has obvious advantages in the field of High Precision Square Tube. The inner angle radius of the product is ≤0.3mm, and the size tolerance is accurate to ±0.1mm, far exceeding the industry standard. Can produce a variety of materials, bending strength increased by 15%-20%, weight loss by 12%-30%. By using laser-arc hybrid welding technology, the weld deformation is reduced by 70%, and the fatigue life exceeds 2 million cycles. Support full specification customization, digital flexible production, fast delivery, strict quality control, can meet the needs of multiple fields.
Solar Carport Structure
Shunchen Industrial's meticulously crafted Solar Carport Structure is an innovative composite system integrating photovoltaic power generation and vehicle sun and rain protection, encompassing both steel and aluminum alloy structures. It utilizes a robust frame constructed from steel profiles and square tubing, cleverly integrating photovoltaic module supports and high-efficiency photovoltaic panels at the top, while the base is equipped with stable columns, foundations, and precise parking limit facilities. This achieves dual high-efficiency benefits of "sun and rain protection + grid-connected power generation," making it widely applicable to diverse parking scenarios such as industrial parks, factories, commercial complexes, and residential areas.
Curtain Wall Bracket Steel
Tianjin Shuncheng Industrial's Curtain Wall Bracket Steel is a specialized metal profile that supports building Curtain Wall Bracket Steel and transfers loads to the main structure. Main types include right-angle square tubes, channel steel, and angle steel, manufactured through precision forming, welding, and anti-corrosion treatment, possessing high strength, high precision, and weather resistance. Its core function is to bear the self-weight of the curtain wall, wind loads, and seismic loads, while also serving as an installation benchmark to ensure panel alignment, adapting to diverse building facade designs.we have our own factory, and we can provide you with not only the newest products designed in fashionable style but also a price list and quotation.
Z Purlin for Solar or Roof
Looking for a reliable China manufacturer and supplier? The Z Purlin for Solar or Roof produced by Tianjin Shunchen Industry boast numerous advantages. It employs the cold-formed bending process to craft a unique Z-shaped thin-walled steel, primarily serving as a purlin component for photovoltaic support systems. This design can stably support solar panels, guide rails, and fixed components. The clever Z-shaped cross-section design, with flange inclination angles ranging from 60° to 75°, significantly enhances bending and torsional resistance. It is particularly suitable for roofs with slopes greater than 15°, effectively reducing torque loss and enhancing the stability of photovoltaic systems.
- Related Blog
- Reviews
