PRODUCT

PE-Coated Corrugated Steel Pipe

[Corrugated Steel Pipe with PE Inner Coating]

[Corrugated Steel Pipe with PE Double-Sided Coating]

Overview

Stable durability and eco-friendly materials

PE-coated CSPs share the same structural design as conventional CSPs, ensuring equivalent or superior mechanical performance, while providing enhanced resistance to corrosion and chemical exposure.

Material & Types

ASTM A742/A742M-23
Standard Specification for Steel Sheet, Metallic Coated and Polymer Precoated for Corrugated Steel Pipe

Coating Type Coating Thickness
Inner Coating Inner: 0.25mm
Double-Sided Coating Inner: 0.25mm / Outer: 0.25mm
Differential Coating Inner: 0.5mm / Outer: 0.25mm

Key Point

1. Corrosion and Chemical Resistance
  • High-density polyethylene (PE) coating on the inner or both sides protects the steel surface from corrosion caused by soil, moisture, and chemicals.
  • PE-coated CSPs maintain long-term durability even in environments exposed to salts, acidic soils, and industrial wastewater.
2. Enhanced Durability and Service Life
  • Significantly slower corrosion rate compared to galvanized CSPs, allowing a design life of over 50 years.
  • Lower maintenance costs contribute to reduced life cycle cost (LCC).
3. Environmental Friendliness and Safety
  • Use of non-toxic PE materials ensures no risk of environmental contamination.

Cross-Sectional Profile

Specifications

Unit : mm
Designation Pitch(P) Depth(H) Bend Radius(r) Pipe Length(L) Nominal Diameter(RI) Axial Bending
0RS 38.0 ± 2.0 6.5 ± 2.0 - +40 mm -10 mm
from specified
length		 10 for < 1000 /
±1% for ≥1000		 ±0.3% of length
1RS 68.0 ± 2.0 13.0 ± 2.0 17.5
3RS 76.2 ± 2.0 25.4 ± 2.0 17.5

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