Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 3PE / 3PP / FBE Coated Anti-Corrosion Steel Pipe | DIN & API Standard Pipeline Supplier in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
3PE / 3PP / FBE Coated Anti-Corrosion Steel Pipe Manufacturer & Supplier
3PE / 3PP / FBE coated anti-corrosion steel pipes are advanced pipeline protection solutions designed for oil & gas transmission, water supply systems, chemical plants, and underground pipelines.
With a multilayer coating structure including fusion bonded epoxy (FBE), adhesive layer, and polyethylene or polypropylene outer protection, these pipes provide exceptional resistance against corrosion, moisture, soil stress, and mechanical damage, ensuring a service life of up to 30–50 years.
They fully comply with international standards such as API 5L, ASTM A53/A106, DIN 30670, and EN 10288, making them a trusted choice for global EPC contractors and industrial projects.
Why Choose Our 3PE / 3PP / FBE Coated Pipes?
🔹 1. Triple-Layer Protection System
FBE epoxy anti-corrosion base layer
Adhesive bonding layer
PE / PP outer mechanical protection layer
👉 Excellent barrier against corrosion and chemical attack
🔹 2. Long Service Life (30–50 Years)
Resistant to soil corrosion & moisture penetration
Ideal for buried & offshore pipelines
🔹 3. High Mechanical Strength
Anti-impact & anti-abrasion performance
Suitable for harsh construction environments
🔹 4. Low Maintenance Cost
Reduces pipeline replacement frequency
Lower lifecycle cost for projects
🔹 5. Smooth Flow Performance
Low internal friction
Improved energy efficiency in fluid transport
3PE, 3PP and FBE coated anti-corrosion steel pipes for oil, gas, water and buried pipeline systems. High durability carbon steel pipeline with DIN, API and ASTM standards. China manufacturer & exporter.
Keywords: 3PE coated steel pipe, 3PP coated steel pipe, FBE coated steel pipe, anti-corrosion steel pipe, oil & gas pipeline, water supply pipeline, buried steel pipe, coated carbon steel pipe, pipeline supplier
3PE, 3PP, and FBE Coated Steel Pipes, also called anti-corrosion steel pipes, are advanced external corrosion-protected carbon steel pipes widely used in oil, gas, water, and industrial pipeline projects. Our factory produces seamless and welded (ERW / LSAW) carbon steel pipes with 3-layer polyethylene (3PE), 3-layer polypropylene (3PP), and fusion bonded epoxy (FBE) coatings, according to API 5L, ASTM A53/A106, EN10204, EN10219, and JIS G3454/G3456 standards. All pipes are engineered for excellent corrosion resistance, mechanical strength, and long-term service in buried, submerged, and exposed environments. Supplied with MTC EN10204 3.1 and export-grade packaging, our coated steel pipes meet the requirements of global B2B buyers, EPC contractors, and pipeline engineers.
3PE / 3PP / FBE Coated Steel Pipe Specification
| Item | Specification |
|---|---|
| Product Name | 3PE / 3PP / FBE Coated Steel Pipe |
| Outer Diameter (OD) | 21.3 mm – 2020 mm (1/2" – 80") |
| Wall Thickness | 2.0 mm – 25.4 mm |
| Pipe Length | 5.8 m / 6 m / 11.8 m / 12 m / Custom |
| Steel Grades | API 5L Gr.B, X42, X52, X60, X65, X70 |
| Pipe Types | Seamless / ERW / LSAW / SSAW |
| Coating Types | 3PE / 3PP / FBE |
| Coating Thickness | 250 – 500 μm (FBE) / 1.8 – 4.5 mm (3PE/3PP) |
| Standard | API 5L / ASTM A53 / ASTM A106 / DIN 30670 / EN 10288 |
| End Type | Plain End / Beveled End / Threaded (optional) |
What is 3PE Coated Steel Pipe?
3PE Coated Steel Pipe (Three-Layer Polyethylene Coated Steel Pipe) is a type of anti-corrosion pipeline widely used for transporting oil, gas, water, and other fluids in harsh environments.
It uses a 3-layer protective coating system applied to the surface of a steel pipe to significantly improve corrosion resistance and service life.
Structure of 3PE Coating
The "3PE" system consists of three layers:
| Layer | Material | Function |
|---|---|---|
| 1st Layer | Fusion Bonded Epoxy (FBE) | Provides strong adhesion and anti-corrosion base protection |
| 2nd Layer | Adhesive (Copolymer) | Bonds epoxy layer with outer polyethylene layer |
| 3rd Layer | Polyethylene (PE) | Mechanical protection against impact, moisture, and soil stress |
3PE vs 3PP vs FBE Coating – Key Differences
| Comparison Item | FBE Coating | 3PE Coating | 3PP Coating |
|---|---|---|---|
| Full Name | Fusion Bonded Epoxy | Three-Layer Polyethylene | Three-Layer Polypropylene |
| Layer Structure | Single layer (epoxy) | FBE + Adhesive + PE | FBE + Adhesive + PP |
| Base Function | Anti-corrosion protection | Anti-corrosion + mechanical protection | High-temperature + anti-corrosion protection |
| Operating Temperature | Low to medium (~-30°C to 80°C) | Medium (~-40°C to 80°C) | High (~-20°C to 110–140°C) |
| Impact Resistance | Medium | High | High |
| Soil Stress Resistance | Medium | High | High |
| Corrosion Resistance | Good | Very good | Very good |
| Flexibility | Good | Good | Slightly lower (stiffer than PE) |
| Chemical Resistance | Good | Very good | Excellent (better than PE) |
| Water Absorption | Very low | Very low | Very low |
| Best Use Environment | Above-ground / buried mild conditions | Underground pipelines, oil & gas, water pipelines | High-temperature pipelines, desert, chemical transport |
| Typical Applications | Valve, fittings, small pipes | Long-distance oil & gas pipelines, buried pipelines | Hot crude oil, chemical pipelines, high-temp transmission lines |
| Cost Level | Low | Medium | Medium–High |
Applications of Anti-Corrosion Steel Pipes
Anti-corrosion steel pipes are widely used in industries where pipelines are exposed to moisture, chemicals, soil, seawater, or high humidity. Protective coatings (such as 3PE, 3PP, FBE, epoxy, or galvanized layers) significantly extend service life and reduce maintenance costs.
1. Oil & Gas Transportation
Crude oil transmission pipelines
Natural gas distribution systems
Refined petroleum product pipelines
Gathering and trunk pipelines in oil fields
👉 Key reason: Long-distance transport requires high corrosion resistance and safety reliability.
2. Water Supply & Water Treatment Systems
Municipal drinking water pipelines
Industrial water transport systems
Desalination plant pipelines
Wastewater and sewage systems
👉 Key reason: Prevents rust contamination and pipe degradation in wet environments.
3. Offshore & Marine Engineering
Offshore oil platforms
Subsea pipelines
Marine seawater intake & discharge systems
Shipbuilding piping systems
👉 Key reason: Strong resistance to chloride corrosion and seawater exposure.
4. Chemical & Petrochemical Industry
Acid and alkali transport pipelines
Chemical processing plants
Fertilizer and refinery systems
Corrosive fluid transfer lines
👉 Key reason: Protection against highly aggressive chemical media.
5. Underground Infrastructure
Buried urban pipeline networks
Heating pipelines (district heating systems)
Gas distribution grids
Municipal infrastructure projects
👉 Key reason: Prevents soil corrosion, moisture attack, and stray current corrosion.
6. Power & Energy Industry
Cooling water pipelines in power plants
Nuclear and thermal plant piping systems
Renewable energy infrastructure (hydro, hydrogen systems)
👉 Key reason: Ensures long-term stability under continuous operation.
7. Mining & Industrial Applications
Slurry transport pipelines
Tailings disposal systems
Mining wastewater pipelines
Heavy industrial fluid transport
👉 Key reason: Resists abrasion, corrosion, and harsh operating conditions.
8. Agricultural & Irrigation Systems
Long-distance irrigation pipelines
Agricultural water distribution networks
Fertilizer liquid transport systems
👉 Key reason: Ensures durability in outdoor soil and moisture conditions.
Standards and Specifications for Anti-Corrosion Steel Pipes (API / ASTM / DIN)
Anti-corrosion steel pipes are manufactured and tested under international standards to ensure quality, safety, and performance consistency. The most widely used standards come from API, ASTM, and DIN/EN systems.
1. API Standards (American Petroleum Institute)
API standards are mainly used in oil & gas pipelines and high-pressure transmission systems.
| Standard | Description | Application |
|---|---|---|
| API 5L | Line pipe specification (most important standard) | Oil & gas transmission pipelines |
| API 5L PSL1 / PSL2 | Product Specification Levels (PSL2 = stricter testing) | High-integrity pipeline systems |
| API 5CT | Casing and tubing for wells | Oil drilling and well completion |
| API RP 5L2 | Internal coating of pipelines | Anti-corrosion internal protection |
👉 Key point:
API 5L is the core standard for 3PE / 3PP coated pipeline steel pipes.
2. ASTM Standards (American Society for Testing and Materials)
ASTM standards are widely used in materials, coatings, and mechanical property testing.
| Standard | Description | Application |
|---|---|---|
| ASTM A53 | Seamless and welded steel pipe | General-purpose pipelines |
| ASTM A106 | High-temperature service pipe | Power plants, refineries |
| ASTM A333 | Low-temperature service pipe | Cryogenic and cold regions |
| ASTM A672 | Electric fusion welded steel pipe | High-pressure service |
| ASTM G8 / G42 | Coating cathodic disbondment tests | Anti-corrosion coating performance |
| ASTM D1000 | Tape and coating adhesion testing | PE/epoxy coating evaluation |
👉 Key point:
ASTM focuses on material performance + coating testing methods.
3. DIN / EN Standards (European System)
DIN (Germany) and EN (European Norms) are widely used in Europe, Middle East, and international EPC projects.
| Standard | Description | Application |
|---|---|---|
| DIN EN 10216 | Seamless steel tubes for pressure purposes | Industrial pipelines |
| DIN EN 10217 | Welded steel tubes for pressure purposes | Gas and fluid transport |
| DIN 30670 | Polyethylene coating for steel pipes (3PE) | Underground pipelines |
| DIN 30678 | Polypropylene coating (3PP) | High-temperature pipelines |
| EN ISO 21809 | External coatings for buried pipelines | International pipeline coating systems |
👉 Key point:
DIN 30670 / 30678 are core coating standards for 3PE and 3PP systems.
4. Coating Standards Summary (3PE / 3PP / FBE)
| Coating Type | Main Standards | Function |
|---|---|---|
| FBE | AWWA C213, ISO 21809-2 | Epoxy anti-corrosion layer |
| 3PE | DIN 30670, ISO 21809-1 | Buried pipeline protection |
| 3PP | DIN 30678, ISO 21809-1 | High-temperature pipeline protection |
5. Quick Selection Guide
API 5L → Pipeline steel base standard (oil & gas industry)
ASTM → Material performance & testing standards
DIN/EN → Coating system standards (especially 3PE / 3PP)
3PE / 3PP / FBE Coated Anti-Corrosion Steel Pipe Advantages
Anti-corrosion steel pipes play an important role in engineering construction due to their unique anti-corrosion properties and wide range of applications. The following is an analysis of the advantages and disadvantages of anti-corrosion steel pipes:
Advantages
➢Good corrosion resistance:
Anti-corrosion steel pipes can effectively resist various corrosive media, such as acid, alkali, salt, water, oxygen, etc., prevent steel pipes from corroding in harsh environments, and greatly extend the service life of steel pipes.
For buried pipelines, the anti-corrosion layer can isolate moisture, oxygen and other corrosive substances in the soil, protecting the steel pipe from soil corrosion.
➢Excellent mechanical properties:
Anti-corrosion steel pipes retain the high strength and toughness of the steel pipe itself, and can withstand external forces such as greater pressure, tension and impact.
Whether in long-distance transmission pipelines or in some special engineering structures, anti-corrosion steel pipes can maintain good mechanical properties to ensure the safe operation of pipelines.
➢Easy construction:
Anti-corrosion steel pipes are relatively light in weight and easy to transport and install.
At the construction site, welding, flange connection and other methods can be used for connection. The construction process is relatively simple, which can shorten the construction period of the project.
For some anti-corrosion steel pipes that require on-site processing, such as cutting and opening holes, it is also relatively easy to operate and will not cause too much damage to the anti-corrosion layer.
➢Smooth inner wall:
After special treatment, the inner wall of the anti-corrosion steel pipe has a high surface smoothness and is not easy to scale.
This can not only reduce the flow resistance of the fluid in the pipeline and reduce energy consumption, but also avoid pipeline blockage and local corrosion caused by scaling.
➢Low maintenance cost:
Because the anti-corrosion steel pipe has good corrosion resistance and mechanical properties, under normal conditions of use, it does not require frequent maintenance and replacement, which greatly reduces the maintenance cost of the pipeline.
Even if maintenance is required, it is relatively simple, and only local repair or replacement of the anti-corrosion layer is required.
➢Environmental protection and energy saving:
The anti-corrosion steel pipe has good sealing performance, which can reduce the leakage of the medium during transportation and reduce pollution to the environment.
At the same time, the characteristics of smooth inner wall and low resistance also help save energy, which meets the requirements of modern society for environmental protection and energy saving.
International Standard Size Table – Coated Steel Pipe
| Outer Diameter (mm) | Wall Thickness (mm) | Length (m) | Weight (kg/m) | Imperial OD | Schedule | Coating Type | Thickness (µm) | Tolerance |
|---|---|---|---|---|---|---|---|---|
| 60.3 | 3.0 – 6.0 | 6 / 12 | 8.5 | 2" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.3 mm |
| 89 | 4.0 – 8.0 | 6 / 12 | 13.2 | 3" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.3 mm |
| 114.3 | 5.0 – 10.0 | 12 | 21.0 | 4 1/2" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.4 mm |
| 168.3 | 6.0 – 12.7 | 12 | 33.5 | 6 5/8" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.4 mm |
| 219.1 | 8.0 – 14.3 | 12 | 50.0 | 8 5/8" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.5 mm |
| 273 | 8.0 – 16.0 | 12 | 65.5 | 10 3/4" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.5 mm |
| 323.9 | 9.0 – 16.0 | 12 | 78.5 | 12 3/4" | 40 / STD | 3PE / 3PP / FBE | 250–500 | ±0.5 mm |
Notes:
Standard lengths: 6 m / 12 m; cut-to-length available
Wall thickness classes: Light, Standard, Heavy, Extra Heavy
Dimensional tolerance per ASTM / API / EN / JIS standards
Chemical Composition (Typical – wt%)
| Grade | C | Mn | P | S | Si | Cr | Ni | Fe Balance |
|---|---|---|---|---|---|---|---|---|
| ASTM A53 GrB / A106 GrB | ≤0.30 | 0.29–1.06 | ≤0.035 | ≤0.035 | ≤0.10 | – | – | Balance |
| API 5L B / X42 | ≤0.26 | 0.95 | ≤0.035 | ≤0.035 | ≤0.30 | – | – | Balance |
| EN10216-1 P235GH | ≤0.22 | ≤1.60 | ≤0.035 | ≤0.035 | ≤0.50 | – | – | Balance |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| ASTM A53 GrB | 205 | 345 | 25 | 120–160 |
| ASTM A106 GrB | 205 | 340–430 | 30 | 120–170 |
| API 5L B / X42 | 241 | 379 | 30 | 130–170 |
| EN10216-1 P235GH | 235 | 360–510 | 26 | 120–170 |
Coating Features
3PE Coating System
FBE primer layer (anti-corrosion)
Adhesive layer (bonding)
Polyethylene outer layer (protection)
3PP Coating System
FBE + adhesive + polypropylene
Suitable for higher temperature environments
FBE Coating System
Single fusion bonded epoxy layer
Ideal for internal or moderate external protection
| Coating Type | Structure | Application |
|---|---|---|
| 3PE | FBE + Adhesive + PE | Buried oil & gas pipelines |
| 3PP | FBE + Adhesive + PP | High-temperature pipelines |
| FBE | Fusion Bonded Epoxy | Water / internal / moderate corrosion |
Our Certificate
CE
CE
CE
CE
Inspection & Quality Assurance
Raw material QC: chemical composition, mechanical testing, surface inspection
In-process monitoring: diameter, wall thickness, straightness, coating adhesion
Final inspection: hydrostatic test, coating thickness & adhesion, dimensional check
Third-party inspection: SGS / BV / TUV available
Export packaging: seaworthy wooden crates, anti-rust coating, proper marking
Please send us your inquiry with:
Pipe size (OD / thickness)
Coating type (3PE / 3PP / FBE)
Application (oil, gas, water, etc.)
Quantity
We will reply with the best solution and quotation ASAP.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ – Coated Anti-Corrosion Steel Pipe
Q1: What is the difference between 3PE, 3PP, and FBE coating?
A1: 3PE = FBE primer + adhesive + polyethylene top layer; 3PP = FBE primer + polypropylene top layers; FBE = single-layer fusion bonded epoxy coating.
Q2: Can coated pipes be supplied in ERW, LSAW, and seamless types?
A2: Yes, all three types are available depending on diameter and pressure requirements.
Q3: What standards do these pipes comply with?
A3: ASTM A53/A106, API 5L, EN10216, EN10210, JIS G3454/G3456.
Q4: Can pipes be cut to custom lengths?
A4: Yes, lengths from 6 m up to 12 m or as requested.
Q5: Do you provide mill test certificates (MTC)?
A5: Yes, EN10204 3.1 certificates are available.
Q6: What is the typical wall thickness tolerance?
A6: ±0.3–0.5 mm depending on diameter and coating.
Q7: Are the coated pipes suitable for welding?
A7: Yes, welding can be performed after proper coating removal or using FBE/PP compatible welding procedures.
Q8: Can you provide third-party inspection?
A8: Yes, SGS, BV, and TUV inspection services are available.
Q9: Are pipes suitable for buried and offshore pipelines?
A9: Yes, 3PE and 3PP coatings are designed for long-term buried and submerged service.
Q10: Do you provide customized coating thickness and color?
A10: Yes, coating thickness and color can be customized according to project requirements.
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