Spiral Corrugated Steel Pipes Solutions for Culverts and Conduits

Spiral Corrugated Steel Pipes, also known as Helical Corrugated Steel Pipes are versatile drainage solution widely used in municipal and industrial projects. The terms "spiral" and "helical" are interchangeable, varying only by regional naming conventions, but they refer to the same high-quality product. This pipe is commonly applied in municipal infrastructure projects and industrial parks as sewer pipes, drainage conduits, or culverts due to its superior strength, durability, and corrosion resistance. Its spiral corrugated design ensures efficient water flow and reliable performance in challenging environments.

Spiral Corrugated Steel Pipes offer an optimal combination of strength, durability, and hydraulic efficiency. Featuring a spiral pattern and locking seam construction, they are made from high-quality galvanized steel sheets to ensure long-term performance. These pipes are available in various diameters and corrugation profiles, making them suitable for diverse project requirements, including culverts, drainage systems, and infrastructure solutions.

Specifications

• Pipe Diameter: 300mm – 2500mm (12” – 100”)
• Length: 1m – 12m (customizable per project needs)
• Thickness: 1.6mm – 3.2mm
• Corrugation Options:
  • 68x13mm (2-2/3” × 1/2”) for diameters under 1m
  • 75x25mm (3” × 1”)
  • 125x25mm (5” × 1”) for diameters over 1m

Structure

Spiral corrugated steel pipes are manufactured using galvanized steel belts with spiral seaming joints for enhanced strength and durability.

• Diameters under 1m: Standard corrugation 68x13mm with section lengths of 6m.
• Diameters over 1m: Corrugation 125x25mm with standard section lengths of 6m (custom sizes available).

Connection Systems

The pipes can be connected based on project specifications using:

• Clamping bands
• Flanges with PE plates, sealant, or rubber gaskets
• High-strength bolts and nuts (Grade 8.8 or higher per GB/T1231 standards)

Spiral Ribbed Steel Pipe Spiral Corrugated Metal Pipe Spiral Wound Steel Pipe

Materials

• Steel Plate: DX52D or SGHC, meeting EN10327 or JIS G 3302-2010 standards, with size tolerance according to GB/T-709.
• Clamping Bands and Angle Steel: Made from Q235 steel, compliant with GB/T700 standards.
• Fasteners: High-strength bolts and nuts (Grade 8.8 or above).
• Galvanization: Pipes are formed using hot-dip galvanized steel belts or galvanized after forming to ensure corrosion resistance.

Characteristics

• High Strength The corrugated structure provides exceptional compression strength, making it 1.5 times stronger than traditional concrete pipes.
• Lightweight and Easy Transport Spiral corrugated steel pipes weigh only 1/10 to 1/5 of similarly sized concrete pipes, allowing for easy transportation. Smaller sections can even be carried manually without heavy machinery.
• Quick Installation These pipes are connected using clamping bands or flanges, and the lengths can be customized according to project requirements. This streamlined connection process enables faster installation and reduced labor time.
• Long Service Life Manufactured with galvanized steel plates featuring 300-600g/m² zinc coating, these pipes have a typical lifespan of 50-100 years. For highly corrosive environments, additional asphalt coating on the interior and exterior surfaces can extend the service life by an additional 20-50 years.
• Cost-Effective Spiral corrugated steel pipes offer significant cost savings due to their lightweight design, quick installation, and reduced need for extensive foundation work. For instance, in an 800mm diameter comparison, steel pipes cost approximately 90% of concrete alternatives while eliminating expenses for forklifts, cranes, and complex transportation in challenging conditions.
• Customizable Lengths Standard sections are 6m in length, but pipes can be produced to meet specific project needs, further enhancing efficiency and adaptability.