3PE Coating Anti-Corrosion Insulation Steel Tube

Standard API 5L/API 5CT/ASTM A106/
ASTM A53/ASTM A213, A333/ASTM A335
Material Gr A.B.C. X42-X80,P5,P9,P11,P12,
OD 21.3mm-914.4mm
WT Sch10-Sch160
Length 5m-12m,5.8m6m,10m-12m,12m
as customer actual request
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Product Details

Product Details

Three layer polyethylene anticorrosion is one of the main technical system of buried pipeline corrosion protection at home and abroad. It has good corrosion resistance, low water absorption and high mechanical strength. It has been used more and more widely in the field of buried water conveyance, gas transmission and pipeline transportation in recent years.

Brief Introduction

3PE Coating Anti-Corrosion Insulation Steel Tube

Product Name

ERW steel pipe


A53 GR.B, A36, ST52, ST35, ST42, ST45,X42, X46, X52, X56, X60, X65, X70


 1/2"—48" (DN15mm-1200mm)


API5L , ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A179/A192,ASTM A513-2007,ASTM   A671-2006,ASTM A672-2006 ,BS EN10217, BS EN10296,BS EN 39 ,BS 6323 ,DIN EN   10217-1-2005


API5L, ISO 9001:2008, SGS, BV, CCIC.

Wall thickness

SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100 SCH120, SCH160, XS, XXS

Surface   Treatment

black paint, varnish, oil, galvanized, anti-corrosion coated.

Pipe Ends

Under 2 inch plain end. 2 inch and above Beveled. Plastic caps (small OD). Iron   protector (large OD).


Standard marking, or according to your request. Marking Method: Spray white paint

Pipe Length

1. Single Random Length and double Random Length.

2. SRL:3M-5.8M  DRL:10-11.8M or As clients requested length

3. fixed   length(5.8m, 6m, 12m)


Loose package; Packaged in bundles(2Ton Max);  bundled pipes with two slings at the both end for easy loading and discharging; wooden cases; waterproof woven bag.


Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior   Size Inspection,hydraulic testing , X-ray Test.


liquid delivery,Structure pipe,construction, petroleum cracking,oil pipe,gas pipe


1.Reasonable price with excellent quality

2.Abundant stock and prompt delivery

3.Rich supply and export experience, sincere service

4.Reliable forwarder, 2-hour away from port.


At the initial stage of introducing 3PE coating technology, the research institute of engineering and technology of CPC prepared the first 3PE coating construction acceptance code in China in April 1995 with reference to din30670-1991 and nfa49-710 (March 1988 edition) for construction of shan-jing pipeline and ku-shan pipeline.In the same year, it was upgraded to the industry standard SY/ t4013-1995. After several years of summary and practice of engineering construction, it was revised to SY/ t0413-2002 in 2001, and was implemented on August 1, 2002.

At the beginning of the standards, according to the actual situation of China, polyethylene is given priority to with high density polyethylene, vicat softening point was not less than 110 ℃;The thickness of the outer coating is determined according to the German standard din30670-1991, which is mainly low and medium density polyethylene.Greatly improve the impact strength of 3 PE coating, ensures the shanxi-beijing pipeline and ku-shan pipeline construction quality, SY/T0413-2002 and 3 PE anticorrosive layer of the peel strength, impact resistant index increase, according to some special material and specified by carbon black content, ensure the 3 PE coating and weather resistance, mechanical strength and increased the repairing peel strength (i.e., heat shrinkable sleeve, heat shrinkable belt of peel strength) of primer for steel of parking frequency, in order to ensure the pipe external anticorrosive coating quality has made a contribution.

Reliable research

In view of the debate on the adoption of 3PE coating in China, CNPC research institute of engineering technology, entrusted by Beijing huayu natural gas co., LTD., completed the "study on the safety evaluation of polyethylene coating on the exterior anti-corrosion three-layer structure system of shan-jing gas transmission pipeline".This study includes the analysis of the results of the excavation inspection and no-excavation inspection of the outer anti-corrosion layer of pipeline from foreign literatures collected to Beijing hualiu natural gas co., ltd. from 2001 to 2003, as well as the 3PE anti-corrosion performance inspection of the unfinished open-pit pipeline stacked in the north China petroleum steel pipe plant for 2 years and 6 years. 

3PE/PP Coating performance:


Peel strength(N/cm)

Cathodic strip(mm)(65℃,48h)

Impact    strength (J/mm)

Bending resistance (2.5°)








No cracking of polyethylene

Uses: products are widely used in oil pipelines, natural gas pipelines, heating pipes, water pipelines.

3PE coating pipes


3PE coating Pipe has three layer PE antisepsis structure: the first layer with epoxy powder (FBE> 100um), the second layer with adhesive (AD), 170 - 250um, the third layer with polyethylene (PE) 2.5 ~ 3.7mm.




The Workshop

Certifications of product

The Application


Why to choose us?

1.We provide products to our customers individual specifications and special needs with competitive price and best service.

2. Immediate respond

We will be 24/7 on line at your services. Provide one-to-one service with our sincerity.

3. Professional suggestions

We could provide you the professional suggestion with our expertise acumen.

4. Short delivery period

We are based on a long-term cooperation with several major domestic steel company with an outstanding advantage is sufficient supply. Shorter the supplying period.







Edit by Ms. Vicky of  CSPG

Contact us directly by:

Email: ella@cnspipe.com  ,vicky@cnspipe.net

Tel / Whatsapp: +86-180327140146

Skype: cnspipe002

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