Plastic Steel Wrapped Pipe

1. Product Overview​​

Plastic-steel composite spiral corrugated pipe (SRSCP) is an advanced drainage pipe system combining HDPE's corrosion resistance with galvanized steel's structural strength. This innovative design features an interlocked spiral structure with steel reinforcement ribs embedded in HDPE, creating a high-performance pipe for municipal, industrial and infrastructure drainage applications.

​​2. Product Features & Advantages​​

✔ ​​Dual-Material Composite Structure​​

Outer layer: UV-resistant HDPE (2.0-4.0mm thickness)

Reinforcement: High-strength galvanized steel strip (0.8-2.5mm thickness)

Inner layer: Smooth HDPE (for optimal flow)

✔ ​​Superior Physical Properties​​

Ring stiffness: SN8-SN16 (up to 500kN/m²)

Impact resistance: ≥15kJ/m² (ASTM D2444)

Axial tensile strength: ≥150MPa

✔ ​​Installation Advantages​​

Lightweight (1/8 of concrete pipe weight)

6-12m standard lengths reduce joints

Flexible connection systems (seal rings, welding)

​​3. Technical Specifications​​

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4. Material Standards & Certifications​​

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HDPE Material​​: PE100 (ISO 4427, GB/T 19472.2)

​​Steel Reinforcement​​: GB/T 700 Q235B with 275g/m² zinc coating

​​Product Standards​​: CJ/T 329, ASTM F2435

Certifications​​: ISO 9001, CE, NSF-61

​​5. Performance Comparison​

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6. Typical Applications​

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✔ ​​Municipal Stormwater Drainage Systems​​

✔ ​​Industrial Wastewater Collection​​

✔ ​​Highway/Railway Culvert Drainage​​

✔ ​​Landfill Leachate Collection​​

✔ ​​Mine Dewatering Systems​​

✔ ​​Agricultural Irrigation Drains​

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​​7. Installation Methods​​

​​Trench Installation​​

Minimum bedding thickness: 150mm

Compaction requirement: ≥90% Proctor density

Maximum trench width: 1.5× pipe diameter

​​Pipe Jointing Systems​​

Electrofusion band welding (for sealed systems)

Rubber gasket connections (Rieber type)

Mechanical couplings (for repair situations)

​​Special Installation​​

Slip-lining rehabilitation

Directional drilling (modified wall designs)

​​8. Quality Control​​

​​Material Testing​​:

HDPE melt index (190°C/5kg): 0.3-1.0g/10min

Zinc coating adhesion test (ASTM A123)

​​Product Testing​​:

Ring stiffness test (ISO 9969)

Crush resistance test (ASTM D2412)

Watertightness test (0.5bar for 15min)

​​9. Packaging & Shipping​​

​​Standard Package​​: Wooden cradles with plastic wrapping

​​Max. Stacking Height​​: 2.5m for DN≤1200mm

​​Shipping Marks​​: Printed with pipe specifications

​​MOQ​​: 100 meters (mixed sizes accepted)

​​10. Why Choose Our SRSCP?​​

✅ ​​Hybrid Material Technology​​ - Combines best properties of plastic and steel

✅ ​​Large Diameter Capability​​ - Up to 3m diameter without compromising strength

✅ ​​Custom Engineering​​ - Special formulations for acidic/alkaline environments

✅ ​​Complete Project Support​​ - From hydraulic calculations to installation supervision

​​Contact our engineering team for:​​

Hydraulic capacity calculations

Custom diameter/thickness solutions

Competitive project quotations

Technical drawings and installation manuals