What is 3LPP Coated Pipe?

3LPP coated pipe is a steel pipe with a three-layer polypropylene coating that protects against corrosion and mechanical damage. It's widely used in oil, gas, and water pipelines, especially in high-temperature or harsh environments.

Three Layers – One Strong Protection

This combination ensures the pipe stays protected from both chemical corrosion and physical damage – extending service life significantly.

Why Choose 3LPP Coating?

Compared to other coatings, 3LPP offers:

• High-temperature resistance – up to 110°C for buried service

• Excellent abrasion resistance – ideal for rocky terrain and drilling

• Resistance to cathodic disbondment

• Long service life – up to 50 years at 60°C

• Suitable for – natural gas, petroleum, water & sewage pipelines

International Standards

3LPP coated pipes are manufactured to:

• DIN 30678

• ISO 21809-1

• CSA Z245.21

• NF A49-711

Size & Material Range

• Pipe Size: DN50 – DN2200 (2" to 48"+)

• Pipe Materials: API 5L (Grade B, X42, X52, X65, X80), ASTM A106/A53, stainless, alloy, nickel alloy

Choosing the Right Supplier

When selecting a 3LPP coated pipe supplier, look for:

• Full MTC and material traceability

• Compliance with international coating standards

• ISO 9001 quality certification

• Experience in oil & gas projects

• Capacity to handle various sizes and grades

Summary

3LPP coated pipe is the go-to solution for high-temperature, high-abrasion pipeline applications. With proven performance in oil fields, gas transmission, and marine infrastructure, it delivers long-term reliability where it matters most.

Need a trusted steel pipe supplier? Contact us for quality-certified products with full traceability.