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Help CenterDN80‑DN2600 Anti‑corrosion Coated Steel Pipe 3PE FBE TPEP Internal External Coating Buried Water Supply Sewage Steel Pipe
Product Spotlights
2. Multi‑layer coating options: 3PE / 3LPE, single/double FBE, TPEP internal‑external coating for different project demands
3. High impact & abrasion resistance, anti‑aging, design service life up to 50+ years, lower later‑stage maintenance cost
4. Smooth inner surface, low flow resistance, improve fluid transmission efficiency, prevent scaling (TPEP / epoxy lining)
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Product Overview
Anti‑corrosion coated steel pipe is composite pipeline finished by applying professional anti‑corrosion coating on carbon steel base pipe. It isolates steel substrate from soil, moisture, acid, alkali and salt medium, greatly extending service life for buried pipelines. Available coating options: 3PE/3LPE, single / double FBE fusion bonded epoxy, TPEP internal‑external composite coating. Base pipe: SSAW spiral welded pipe, LSAW straight welded pipe, seamless carbon steel pipe. Widely applied in municipal water supply, sewage drainage, oil & gas transmission, underground infrastructure and chemical pipeline projects
Coating Introduction
3PE / 3LPE Three‑Layer Polyethylene Coating
Three‑layer structure: FBE epoxy primer + adhesive copolymer layer + outer polyethylene protective layer. High adhesion, outstanding waterproof, anti‑corrosion, impact and abrasion resistance. World‑wide popular for buried oil, gas and water pipeline, design service life over 50 years。
Single / Double Layer FBE Fusion Bonded Epoxy Coating
Formed by electrostatic powder spraying, dense uniform epoxy film on steel surface. Excellent high‑temperature resistance, chemical corrosion resistance and strong adhesion. Suitable for oil‑gas transmission and harsh geological condition projects。
TPEP Internal‑External Composite Coating
Inner non‑toxic fusion bonded epoxy lining + outer 3PE polyethylene coating. Smooth inner wall, anti‑scaling, no secondary pollution, compliant with drinking‑water standard. Outer 3PE offers reliable underground anti‑corrosion and mechanical protection, ideal for potable water supply projects。
Product Advantages
Excellent anti‑corrosion performance, resist acid, alkali, salt, soil and microbial corrosion, adapt to various buried environments
Long design service life up to 50+ years, effectively reduce later‑stage maintenance and replacement cost
High toughness, impact‑proof and abrasion‑resistant, avoid coating damage during transportation and buried construction
Smooth inner surface, low fluid resistance, improve conveying efficiency and prevent pipeline scaling
Multiple customization: base pipe type, diameter, wall thickness, coating thickness, fixed cutting length are all available
Strict quality inspection: hydrostatic test, UT ultrasonic flaw detection, coating thickness test. MTC material test certificate can be provided
TPEP inner epoxy coating is non‑toxic, safe for drinking‑water transportation
Standard seaworthy export packing, suitable for long‑distance sea freight
Main Specifications
| Parameter | Specification |
|---|---|
| Base Material | Q235B, Q355B, API 5L Gr.B, X42–X70 carbon steel |
| Base Pipe Type | SSAW Spiral Welded, LSAW Straight Welded, Seamless Steel Pipe |
| Coating Type | 3PE/3LPE, Single FBE, Double FBE, TPEP Internal–External Coating |
| Outer Diameter | DN80–DN2600 (219–2620 mm), customized |
| Wall Thickness | 6–20 mm, customizable |
| Standard Length | 6 m, 12 m or custom cut length |
| Coating Thickness | 3PE: 2.5–3.5 mm; FBE: 300–600 μm; Inner Epoxy: 250–500 μm |
| Execution Standard | GB/T 23257, SY/T 0315, API RP 5L, ISO 21809 |
Application Scope
Buried municipal water supply, drinking‑water delivery, sewage treatment, urban oil & gas transmission, chemical anti‑corrosion pipeline, underground infrastructure and long‑term buried engineering projects.
Quality & Service
We are professional manufacturer for steel pipe anti‑corrosion processing. Each batch implements strict QC procedure. We supply complete inspection documents including material certificate, hydrostatic report and coating inspection report. Support OEM custom anti‑corrosion treatment and size customization. Stable production capacity, competitive factory price and fast delivery for large‑scale engineering orders.
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