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Standard 3PE Anti-Corrosion Steel Pipe for Buried Pipeline Protection

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buried pipeline 3PE anti-corrosion steel pipe
wholesale 3PE coated steel pipe supplier
OEM 3PE anti-corrosion steel pipe manufacturing
industrial 3PE coated steel pipe factory
China source manufacturer 3PE steel pipes
buried pipeline 3PE anti-corrosion steel pipe
wholesale 3PE coated steel pipe supplier
OEM 3PE anti-corrosion steel pipe manufacturing
industrial 3PE coated steel pipe factory
China source manufacturer 3PE steel pipes

High-performance 3PE Anti-corrosion Steel Pipe

Product Overview

Designed specifically for highly corrosive environments and harsh operating conditions, it employs a three-layer composite structure: a bottom layer of high-performance epoxy powder (FBE), a middle layer of copolymer adhesive, and an outer layer of high-density polyethylene (HDPE); significantly improving cathodic disbondment resistance, impact resistance, and long-term corrosion protection life. It complies with ISO 21809-2, API RP 5L2, and SY/T 0413 standards, and is suitable for marine environments, acidic soils, permafrost regions, and high-pressure long-distance pipelines.

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Product Details

Product Advantages

Excellent corrosion resistance – suitable for acidic soils, salt water and chemical environments.

High temperature resistance – can maintain integrity up to 95°C with special formulation.

Excellent resistance to cathodic disbondment – the coating is not easily peeled off during cathodic protection operation.

High impact and abrasion resistance – capable of withstanding rock backfilling and directional tunneling construction.

Full traceability – each batch is tested according to ISO 21809-1 requirements.

Application Areas

Oil and gas long-distance trunk line – high pressure, large diameter (API 5L Gr.B to X80).

Chemical and petrochemical plants – transporting corrosive/high-temperature media.

Marine and offshore pipelines – Subsea pipelines, platform risers, splash zone protection.

High-temperature zone heating – 3PE anti-corrosion coating on the outer layer of steel-jacketed prefabricated insulated pipes.

Directional drilling is used in projects with high stress requirements for coatings, such as those crossing rivers and highways.

Technical parameters

Parameters

High-performance 3PE anti-corrosion steel pipe

Coating structure

Three-layer: FBE+AD+PE (reinforced, with better interlayer bonding)

Coating thickness

FBE≥120um, AD≥200μm, PE ≥3.0mm

Adhesion (20℃)

≥70 N/10mm

Cathode stripping (65℃, 48h)

≤6mm (High temperature type: 85°C, 48h, ≤6mm)

Impact resistance

≥8 J/mm (-20°℃)

Operating temperature range

-40℃ to +80℃ (standard high-performance); high-temperature type up to +95℃

Implementation Standards

ISO 21809-1, API 5L PSL2, CSA Z245.21, DIN 30670 (Enhanced Version)

Steel pipe substrate type

Seamless steel pipes, LSAW straight seam submerged arc welded pipes, and SSAV spiral welded pipes (suitable for high-grade steel).

Pipe diameter range

DN50~DN1200 (Common specifications for long-distance pipelines) (Custom sizes available)

Wall thickness range

3.0 mm ~ 30 mm (according to API 5L standard requirements)

Coating grade options

Reinforced only: High-Temperature Type available.

Additional features

High resistance to cathode stripping, high impact resistance and wear resistance

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Product Name

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