ALLLAND Steel Pipe Supply
Engineered with a three-layer polyethylene (3LPE) system-fusion bonded epoxy, copolymeradhesive, and extruded HDPE-these pipes deliver outstanding corrosion resistance and mechanicaldurability. The inner FBE layer ensures superior adhesion and cathodic protection; the adhesive layerprovides strong inter-bonding; and the outer HDPE shield resists impact, moisture, and soil stress.Designed for buried or subsea pipelines, the 3LPE system extends service life to over 50 years withminimal maintenance, ideal for oil & gas, water, and industrial transmission projects
Alllandsteel is a steel pipe manufacturer based in China with 25 years of experience.
The facility spans 22,000 square meters, represents a RMB 700 million investment, and operates four production lines (JCOE, ERW, SMLS, SSAW) alongside five coating lines.
With an annual production capacity of 250,000 tons, the factory covers specifications ranging from Ø406 to Ø1524 and holds multiple international certifications (API/ASTM/EN/ISO/JIS). Focused on steel pipes, creating value for you!
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O.D.:
Φ60mm – 3000mm (2″ – 118″)
W.T.:
4.5 – 50mm
Length:
6m – 18m (20″ – 60″)
Process:
ISO 21809-1 · DIN 30670 · CSA Z245.21 · API · ASTM · EN · GB
Coating OptionsFBE · 3LPE · 3LPP — or as per project requirements
3LPE (Three-Layer Polyethylene) steel pipe provides a high-performance external protection system for buried and submarine pipelines. The coating combines fusion-bonded epoxy (FBE), adhesive polymer, and high-density polyethylene (HDPE) into a tough, uniform layer that resists corrosion, impact, and moisture penetration in aggressive environments such as saline soils and marine conditions.
With a service life of over 50 years, 3LPE steel pipes are widely used in oil & gas transmission, water distribution, and industrial pipeline networks. Each pipe is processed under strict surface preparation and coating control, tested according to ISO 21809-1, DIN 30670, and CSA Z245.21 to ensure long-term adhesion, mechanical strength, and coating consistency.
| Product Name | 3LPE Steel Pipe · Triple-Layer PE Pipe · 3LPE Anti-Corrosion Pipe |
| Outer Diameter | 60 mm – 3000 mm |
| Wall Thickness | 4.5 mm – 50 mm |
| Length | 6 m / 12 m / 18 m (customizable) |
| Ends | Plain ends · Bevelled ends (30°±5°) · Flanged |
| Surface Treatment | FBE · 3LPE · 3LPP — or as per project requirement |
| Standard | Steel Grade |
| API SPEC 5L | Gr.B, X42, X46, X52, X56, X60, X65, X70, X80 (PSL1 / PSL2) |
| ASTM A53 / A106 / A252 | Gr.A, Gr.B, Gr.C |
| EN 10217 / EN 10219 | S235, S275, S355 路 L245, L290, L360, L415, L450, L485 |
| GB/T 9711 | L245, L290, L360, L415, L450, L485 |
The 3LPE coating process includes surface preparation, FBE primer application, adhesive bonding, and HDPE extrusion—ensuring uniform thickness, strong adhesion, and long-term corrosion protection.
3LPE coated steel pipes are designed for long-term corrosion protection in demanding onshore and offshore pipeline projects. Their triple-layer coating system provides outstanding durability, chemical resistance, and insulation performance across a wide range of operating environments.
3LPE coated pipes are carefully handled and packaged to prevent coating damage during loading, transport, and unloading. Protective end caps, soft spacers, and wrapping films are used to maintain surface integrity and avoid abrasion.
Our factory’s coating production line is available for viewing.
