Steel Skeleton Polyethylene Plastic Composite Pipe

Steel Skeleton Polyethylene Plastic Composite Pipe

Steel skeleton plastic composite pipe is a composite material pipeline that combines high-strength steel wire and thermoplastic polyethylene. Its basic structure includes a high-strength over plastic steel wire mesh skeleton and a thermoplastic polyethylene based on high-density polyethylene (HDPE). This composite pipe tightly connects the steel wire skeleton with the inner and outer high-density polyethylene through high-performance HDPE modified bonding resin, forming an excellent composite effect.

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Introduction

Steel Skeleton Polyethylene Plastic Composite Pipe

The Steel Skeleton Polyethylene (PE) Plastic Composite Pipe uses a high-strength steel wire welded mesh as the reinforcement skeleton, with inner and outer layers fully covered by high-density polyethylene (HDPE), and the steel and plastic are tightly bonded through a high-performance adhesive resin. It combines the high pressure-bearing capacity of metal pipes with the excellent corrosion resistance of plastic pipes, featuring a smooth inner wall that does not scale, low flow resistance, light weight, easy installation, and a service life of over 50 years. Available in sizes DN50 to DN600 and pressure ratings from 0.6MPa to 3.5MPa, it is widely used in municipal water supply and drainage, oil and gas field gathering and transmission, chemical industry, mining, electric power, seawater transmission, agricultural irrigation, and other fields.

Products details information
Product name	Steel Skeleton Polyethylene Plastic Composite Pipe
Brand	Casingscreen Pipeline(Customer brand is available)
Dia Ranges	DN50-600mm(1 1/2 inch-24 inch)
Raw material	PE100, PE80, PE4710, PE3608, PE100RC...
Application	chemical industry, natural gas, oil, water supply...
Color	Black or others colors
Standards	CJ/T123 , CJ-T124 , HG/T3690 , HG/T3691 , SY/T6662.1 , SY/T6662.2 , ASTM F2435...

Parameter

DN/ID (mm)	Pressure, PN/Mpa Wall Thickness of Pipe Main Body & Limit Deviation/mm					Average Inner Diameter Tolerance /%	Distance from Steel Wire to Inner/Outer Wall /mm
DN/ID (mm)	1.0	1.6	2.0	2.5	4.0	Average Inner Diameter Tolerance /%	Distance from Steel Wire to Inner/Outer Wall /mm
50	-	-	-	9.0	10.6	±1	≥1.8
65	-	-	-	9.0	10.6
80	-	-	-	9.0	10.6
100	-	9.0	9.0	11.7	11.7
125	-	10.0	10.0	11.8	11.7
150	12.0	12.0	12.0	12.0	12.3
200	12.0	12.0	12.5	12.5	15.5
250	12.5	12.5	12.5	13.0	-	±0.8	≥2.5
300	15.0	15.0	15.5	-	-	±0.5	≥3.0
350	15.0	15.0	15.5	-	-
400	15.0	16.0	16.5	-	-
450	15.5	16.0	16.5	-	-
500	15.5	16.0	-	-	-
600	19.0	20.0	-	-	-

Note: For DN ≥ 250 and PN ≥ 2.0, the minimum average inner diameter may be reduced by ≤1.5 mm due to increased PN and inward wall thickening. Pipe main body is the full internal pressure-bearing section.

Application

I. Municipal Engineering

Urban water supply networks: Building water supply and drinking water transmission, especially suitable for high‑pressure main lines and branch lines.
Drainage and reclaimed water reuse: Municipal sewage collection and discharge, stormwater pipes, and reclaimed water systems.
Gas transmission: Replacement of traditional metal pipes for natural gas and coal gas pipelines.
Fire protection and heating networks: Fire water pipelines and return water pipelines for heating networks.
Underground drainage channels and cable conduits for highways.

II. Oil & Gas Fields

Gathering and transmission lines: Oilfield gathering lines, oily wastewater pipes, crude oil and refined product pipelines.
Gas field transmission: Wastewater and oil‑gas mixture gathering pipelines in gas fields.
Oil production processes: Secondary and tertiary oil recovery, pipelines for polymer solution injection.
Brine treatment pipes: Brine treatment and transmission lines.

III. Chemical Industry

Corrosive media transmission: Transport of corrosive gases, liquids, and solid powders in acid, alkali, and salt manufacturing, petrochemicals, fertilizers, pesticides, pharmaceuticals, etc.
Textile and dyeing: Process pipelines for corrosive liquids in textile, printing, dyeing, rubber, and plastics industries.

IV. Metallurgy & Mining

Slurry transmission: Transport of ore slurry, tailings, and solid‑liquid mixtures in mining and non‑ferrous metals industries.
Corrosive media transmission: Pipelines for corrosive media in non‑ferrous metal smelting.
Mine ventilation pipes and process pipelines.

V. Electric Power Engineering

Process water transmission: Process water, return water, and water supply systems in power plants.
Waste residue and dust removal: Transport of dust removal waste residue, fly ash, and other materials.
Fire water systems: Fire water pipelines in power plants.

VI. Marine & Offshore Engineering

Ship piping: Sewage pipes, water supply and drainage pipes, ballast water pipes, and ventilation pipes on ships.
Seawater transmission: Seawater intake and discharge for desalination plants, coastal power plants, and port cities, as well as submarine pipelines.

VII. Agricultural Irrigation

Farmland irrigation: Deep well pipes, filter pipes, underground canal transmission pipes, and sprinkler irrigation systems.

Limitation: The product is suitable for media temperatures up to 80°C, with an operating temperature range of -40°C to 80°C.

With its excellent comprehensive performance, this pipe has become an ideal choice for high‑pressure, corrosion‑resistant, buried fluid transmission pipelines in municipal, industrial, energy, and agricultural fields, serving as a versatile solution in modern pipeline engineering.