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Widely specified for offshore, deepwater, and extreme climate pipelines, 3LPP coated pipes comply with international standards including ISO 21809-1 and DIN 30678, ensuring long-term integrity and reliability for critical oil and gas transmission infrastructure worldwide.
Key Features:
1) Maximum operating temperature up to 140°C (standard) / 150°C (special grades) – significantly higher than 3LPE (80°C)
2) Coating thickness 1.8 – 3.2 mm (typical); up to 3.8 mm for larger diameters
3) Excellent resistance to mechanical damage, outstanding protection against soil stresses, handling, and installation
4) High flexibility, resistant to cracking during pipe bending
Coating Details and standard:
Pipe Coating | Specifications | Refered standards |
Mill Varnish | Sserves as a "shop primer" or "mill primer", a temporary, solvent-based protective finish | Mill operation |
FBE | Single-Layer FBE, Typical thickness: 250-500μm | ISO 21809 / AWWA C213 |
3LPP | 1st Layer (Primer): Fusion Bonded Epoxy (FBE) | DIN 30678 / ISO 21809-1 |
3LPE | 1st Layer (Primer): Fusion Bonded Epoxy (FBE) | DIN 30670 / ISO 21809-1 |
Galvanized | Hot-Dip Galvanizing (HDG), immersion in molten zinc at 440-460°C | ASTM A123 / ASTM A153 / ASTM A53 |
Metallic Cladding | Common Cladding Materials: Nickel-Based Alloys, Stainlesss, Duplex Stainless, Cobalt-Based Alloys, Aluminum Alloys | API 5LD / ISO/AWI 25976 |
Cement Mortar | Internal Protection: Cement Mortar Lining (CML) | AWWA C205 / EN 10298 / ISO 11298 |
General information:
Standard: API 5L / ISO 3183 / ASTM A106 / ASTM A53 / ASTM A333 /
Seamless: OD: 21.3-609.6mm; WT: SCHEDULE 10, 40, STD, XS, TO XXS; L: SRL / DRL / Cut to length
Welded: OD: 21.3-1422mm; WT: 3.2-60mm; L: SRL / DRL / Cut to length
Package: several strips of sufficient thickness are wrapped around the pipe avoiding the direct contract between pipes, hexagonal bundled with steel strips if pipe with OD≤219.08mm, loose packing if the pipe OD＞219.08mm, each bundle will not exceed 3tons.
Shipment: Land transportation by truck or train, sea transportation by container shipment or bulk vessel.
Our advantage:
Flexible Project Customization
We provide tailored manufacturing solutions to meet diverse project requirements, including customized outer diameter, wall thickness, and length specifications. In addition, we offer precision end preparation and a full range of anti-corrosion coating options to ensure optimal performance in various operating environments. This flexibility enables us to deliver line pipe solutions that align seamlessly with your technical and application needs.
Fast & Reliable Lead Time
With strong mill partnerships and readily available inventory resources, we are able to shorten production cycles and respond quickly to urgent project demands. Our integrated supply network ensures stable material availability, efficient scheduling, and on-time delivery — helping clients keep their projects on track without delay.
Advanced Technical & Quality Assurance
Equipped with our own metallurgical laboratories and supported by trusted third-party inspection agencies, we ensure every line pipe meets international standards and project specifications. Comprehensive testing and verification guarantee consistent mechanical properties, chemical composition, and coating integrity, providing clients with reliable, high-quality pipeline solutions.
Rapid Delivery & Complete Logistics
Leveraging fast supply capabilities and a well-established logistics network, we ensure timely delivery of line pipes to any project location. Our streamlined transportation and warehousing system minimize lead time, helping clients maintain smooth operations and meet critical project schedules.
