3PE Anti-corrosion Seamless Steel pipe

3PE Coated Seamless Steel Pipe

High-performance corrosion protection for oil, gas, and water infrastructure. Our 3PE (FBE+Adhesive+HDPE) coating ensures 50+ years of service life in the harshest underground and subsea environments.

✅ Standard: API 5L, DIN 30670, ISO 21809-1
✅ Outer Diameter: 21.3mm – 1219mm
✅ Coating Type: 3-Layer Polyethylene (High Adhesion)

Factory Direct ISO Certified Fast Lead Time

Exporting to 50+ Countries | Custom Lengths Available

Product Details:

3PE Anti-Corrosion Seamless Steel Pipe

The 3-Layer PE Coating Technology

Our 3PE (Three-layer Polyethylene) coating provides the most robust protection against soil stress and corrosive environments. The structure consists of:

Layer 1 (Fusion Bonded Epoxy – FBE): A 60-100μm thick layer that provides superior chemical resistance and a strong bond to the steel surface.
Layer 2 (Copolymer Adhesive): A 200-300μm layer that serves as a bridge, ensuring the FBE layer is tightly bonded to the HDPE outer layer.
Layer 3 (High-Density Polyethylene – HDPE): A 2-4mm thick layer that provides excellent mechanical protection, moisture resistance, and impact durability.
Key Features & Advantages
- Superior Adhesion: The epoxy powder primer ensures high chemical resistance and strong bond with the steel surface.
- Enhanced Durability: The middle adhesive layer and outer HDPE layer provide excellent impact resistance and insulation.
- Wide Application: Ideal for oil & gas pipelines, water distribution systems, and chemical industrial piping.
- Compliance: Manufactured strictly according to DIN 30670, ISO 21809-1, and API 5L standards.

Applications

3PE coated seamless pipes are widely used in demanding infrastructure projects due to their longevity and reliability:

Oil and Natural Gas pipelines (Onshore/Offshore)
Municipal water supply and wastewater projects
Chemical and Petrochemical industrial piping
Submarine pipeline projects
Cross-country pipeline transmission lines

Technical Specifications

Item	Specification
Pipe Type	Seamless Carbon Steel Pipe
Standard	API 5L, ASTM A106/A53, DIN 1629
Coating Structure	FBE Primer + Copolymer Adhesive + HDPE Outer Layer
Outer Diameter	21.3mm – 1219mm
Wall Thickness	SCH 10 – SCH 160, XXS
Steel Grade	A106 Gr.B, X42-X80, Q235, L245
Pipe Diameter	1/2″ to 48″ (21.3mm – 1219mm)

Quality Assurance & Testing

We implement rigorous testing procedures to guarantee that every pipe meets international requirements:

✔ Hydrostatic Testing (Hydro-test)
✔ Ultrasonic Testing (UT) & X-ray Inspection
✔ Adhesion Testing & Cathodic Disbondment Test
✔ Coating Thickness Measurement & Holiday Detection

FAQ: Problems & Solutions

Q: Does 3PE coating handle high temperatures?
A: 3PE is recommended for operating temperatures up to 80°C. For higher temperature requirements, we provide customized FBE or 3PP coating solutions.

Q: How do you handle coating damage during transit?
A: Our team uses professional loading techniques with protective spacers. We also provide on-site repair instructions and patch materials (shrinkable sleeves) for minor handling scratches.

Why Choose Us?

Expert Quality Control

From raw material audit to final holiday detection, we ensure every meter of pipe meets global safety standards.

Direct Manufacturer Price

Skip the middleman. We offer competitive factory-direct pricing without compromising on material thickness or coating consistency.

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Our Services

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Cooperation Guidance

No matter you have rich experience of importing or new in this industry, our team will try the best to make your purchase of steel pipes fast and efficient.

Fast Feedaback

All staff are7x 24 hours online and all your inquiries will be replied within 2 hours.

Fast Delivery

common size of steel pipes are in stock more than 800 tons, CIF orders will book stand-on vessel first.

After-sale Service

Test report, certificates, CO and all customs clearance documents will be replied in time.