Hengshui Aohong Engineering Materials Co., Ltd.
1. Product Overview
Corrugated Steel Culvert Pipe (CSCP) is a prefabricated drainage structure engineered for high-load infrastructure projects. Its corrugated design enhances structural rigidity and hydraulic efficiency, making it a preferred solution for roadways, railways, agricultural drainage, and stormwater management systems.
Corrugated Steel Culvert Pipe
2. Material & Design
- Galvanized Steel Core: Fabricated from hot-dip galvanized steel (G-235/G-345 grades) with a minimum zinc coating of 550 g/m² (Z600 standard) for corrosion resistance.
- Corrugation Profiles: Available in helical (68×13 mm) or annular (150×50 mm) patterns to optimize load distribution and soil interaction.
- Optional Coatings: Aluminized steel (Type 2) or polymer linings (PVC, HDPE) for acidic/alkaline environments (pH 3–12).
3. Structural Performance
- Load Capacity: Complies with AASHTO HS-20/25 standards, supporting fill depths up to 30 ft (9 m) and live loads from heavy-duty vehicles.
- Hydraulic Efficiency: 20–35% higher flow rates than smooth-walled pipes due to reduced friction and optimized cross-sectional geometry.
- Durability: Service life of 75–100 years with minimal maintenance; resistant to abrasion, UV degradation, and chemical corrosion.
4. Key Applications
- Transportation Infrastructure: Highway/railway culverts, particularly in flood-prone or mountainous regions (e.g., Burma Road in WWII China).
- Agricultural Systems: Subsurface drainage for irrigation, livestock water channels, and erosion control.
- Urban Stormwater Management: Detention basins, flood diversion conduits, and green infrastructure projects.
5. Installation & Maintenance
- Modular Assembly: Segments joined via bolted connections or banding systems, enabling rapid installation (50–100 ft/day).
- Foundation Requirements: Compacted granular base (≥95% Proctor density) with geotextile lining to prevent scour and settlement.
- Post-Installation Care: Annual inspections for sediment buildup and joint integrity; no routine repainting required.
6. Technical Specifications
| Parameter | Specification |
|---|---|
| Diameter Range | 12 in – 144 in (0.3 m – 3.66 m) |
| Steel Thickness | 12–8 gauge (2.66 mm – 4.17 mm) |
| Ring Stiffness (SN) | SN8 to SN16 |
| Compliance Standards | ASTM A796, AASHTO M190, EN 10219 |
7. Environmental & Economic Benefits
- Sustainability: 100% recyclable steel content reduces landfill waste.
- Cost Efficiency: 25–40% lower lifecycle costs compared to concrete alternatives due to reduced labor and maintenance.
8. Case Study: Urban Drainage Retrofit
In Shanghai’s Pudong Airport drainage upgrade (2024), CSCP replaced aging concrete pipes, achieving a 30% reduction in installation time and 20% cost savings over a 15-year period.
9. Quality Assurance
- Third-party tested for seam strength (≥80% base metal tensile strength).
- ISO 9001-certified manufacturing with traceable material batches.
This product combines proven engineering principles with modern material science, delivering reliable performance across diverse infrastructural challenges12. For project-specific CAD designs or technical consultations, contact our engineering team.
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