ALLLAND Steel Pipe Supply
Built with a three-layer polypropylene (3LPP) system-fusion bonded epoxy primer, adhesivecopolymer, and extruded polypropylene topcoat-these pipes deliver exceptional resistance tocorrosion, impact, and elevated temperatures up to 110°C. The FBE layer ensures strong adhesion tothe steel surface; the adhesive layer bonds tightly to the outer polypropylene, forming a unifiedshield that resists mechanical damage, chemicals, and moisture. Widely used in high-temperature oil,gas, and industrial service lines, 3LPP provides long-term structural protection with reducedmaintenance over decades of operation.
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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Outside Diameter:
Φ60mm – 3000mm (2″ – 118″)
Wall Thickness:
5 – 40mm (0.2″ – 1.6″)
Length:
6m – 12.5m (20″ – 40″)
Quality Standards:
ISO 21809-3 · DIN 30678 · CSA Z245.21 · API · ASTM · EN · GB
Coating Options
FBE · 3LPE · 3LPP — available as per specific project requirements
3LPP steel pipe is a high-performance solution for pipelines operating under elevated temperature and mechanical stress conditions. The system consists of a fusion-bonded epoxy primer for strong adhesion, an adhesive copolymer for interlayer bonding, and a polypropylene topcoat that provides excellent resistance to impact, chemicals, and heat up to 110 °C.
Each 3LPP steel pipe is produced through automated electrostatic and extrusion coating processes under strict quality control, ensuring uniform thickness and consistent bonding strength. This advanced protection system extends the service life of 3LPP steel pipes in demanding environments such as oil, gas, and chemical transport lines—both onshore and offshore.
| Product Name | 3LPP Steel Pipe · Triple-Layer PP Pipe · Polypropylene Coated Pipe |
| Outer Diameter | 60 mm – 3000 mm |
| Wall Thickness | 5 mm – 40 mm |
| Length | 6 m / 12 m / 12.5 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 (PSL1 / PSL2) |
| ASTM A53 / A106 / A252 | Gr.A, Gr.B, Gr.C |
| EN 10217 / EN 10219 | S235, S275, S355 L245, L290, L360, L415, L450, L485 |
| GB/T 9711 | L245, L290, L360, L415, L450, L485 |
The 3LPP coating process involves surface preparation, FBE primer application, adhesive copolymer bonding, and polypropylene extrusion. Each layer is applied under controlled conditions to ensure strong adhesion, uniform thickness, and excellent thermal and mechanical protection.
3LPP steel pipes are engineered for high-temperature and mechanically demanding environments. Their triple-layer polypropylene coating system offers outstanding impact strength, heat resistance, and long-term protection for onshore and offshore pipelines operating under harsh service conditions.
Oil & Gas Pipelines
Used in crude oil and natural gas transmission lines where resistance to elevated temperature and external mechanical stress is essential.
Chemical & Industrial Lines
Applied in chemical transport, refinery, and industrial fluid systems exposed to aggressive media or high process temperatures.
Offshore & Subsea Pipelines
Ideal for subsea and offshore projects requiring thermal stability, strong adhesion, and impact resistance in marine conditions.
Water & Utility Networks
Suitable for high-temperature water conveyance, desalination plants, and cooling systems demanding long service life and coating reliability.
Infrastructure & Energy Projects
Used in buried or above-ground pipeline systems within power generation, construction, and industrial infrastructure sectors.
3LPP steel pipes are carefully packaged to prevent coating damage during handling and shipment. Each pipe is fitted with end caps, separated by soft spacers, and wrapped to ensure surface protection and stability throughout transportation.
Our factory’s coating production line is available for viewing.
