Product Overview

3LPE coated carbon steel pipe is designed for pipeline projects that require external corrosion protection and reliable steel pipe performance. It combines a carbon steel pipe substrate with a three-layer polyethylene coating system to help protect the external surface from moisture, soil contact, and other environmental factors that may contribute to corrosion. Three-layer polyethylene (3LPE) coating is commonly used in pipeline infrastructure and industrial applications. Depending on the pipe grade, coating specification, and project requirements, this product can be considered for oil, natural gas, water transmission, and other suitable pipeline systems. Minimum Order Quantity (MOQ): 1 Ton Different projects may require different pipe dimensions, steel grades, coating thicknesses, pipe lengths, inspection procedures, and delivery arrangements. These details should be confirmed before production to ensure that the supplied product matches the buyer's technical requirements. Three-Layer Polyethylene Coating Structure The 3LPE coating system generally consists of three functional layers that work together to protect the external steel surface. 1. Fusion-Bonded Epoxy Primer The first layer is a fusion-bonded epoxy (FBE) primer applied to a properly prepared steel surface. It provides a base for coating adhesion and external corrosion protection. Proper surface preparation and controlled coating application are important for achieving the required coating quality. 2. Adhesive Layer The second layer is an adhesive material designed to bond the epoxy primer to the polyethylene outer layer. This intermediate layer helps maintain the integrity of the coating system by connecting the different functional layers. 3. Polyethylene Outer Layer The third layer is the polyethylene outer coating. It acts as a protective barrier against moisture, soil exposure, and potential mechanical damage during handling, transportation, and installation. The required coating thickness and performance criteria depend on the applicable project specification. The combined coating structure is designed to provide external corrosion protection. Actual performance depends on coating materials, surface preparation, application processes, inspection results, installation practices, and service conditions. Steel Pipe Specifications Steel pipe requirements vary according to engineering design and intended use. Buyers should confirm the required dimensions, material grade, manufacturing process, coating specification, and applicable standards before placing an order. Depending on the confirmed supply scope, the following specifications can be discussed: Steel Grade and Standard: API 5L or another applicable standard, subject to verification that the product meets the relevant requirements. Outside Diameter: Selected according to project design. Wall Thickness: Determined by engineering and operating requirements. Pipe Length: Standard or project-specific lengths, subject to availability and manufacturing capability. Manufacturing Process: ERW, SSAW, LSAW, or seamless pipe where available and suitable for the selected product. Coating Specification: 3LPE coating requirements, including specified coating thickness and inspection criteria. Pipe Ends: Plain ends, bevelled ends, or other agreed configurations where available. Marking and Identification: According to the agreed order requirements. Specific dimensions, tolerances, and technical requirements should be confirmed in the quotation or purchase order. Manufacturing and Quality Control Quality control is an important part of coated steel pipe supply. Depending on the agreed technical specification, inspection may include pipe dimensions, visual condition, surface preparation, coating thickness, coating continuity, adhesion, and other relevant tests. Testing methods and acceptance criteria should follow the applicable product standard or project specification. Inspection records, material documentation, and coating quality reports can be discussed according to the order requirements and the documents actually available. Clear technical confirmation before production helps reduce specification discrepancies and supports efficient project procurement. Packaging and Transportation Packaging should help protect the external coating during handling and shipment. The appropriate arrangement depends on pipe dimensions, order quantity, transportation method, and destination. Buyers are encouraged to provide the required tonnage, pipe dimensions, delivery destination, and preferred shipping terms before ordering. Packaging, loading arrangements, and shipping requirements can then be reviewed according to the confirmed order. Order Quantity and Project Requirements The minimum order quantity for this product is 1 ton. The final order details should be confirmed according to the selected pipe specifications, coating requirements, production availability, and delivery arrangements. For an accurate quotation, please provide the required steel grade, outside diameter, wall thickness, pipe length, quantity, coating specification, and delivery destination. Engineering drawings, technical data sheets, or a bill of quantities can also help clarify the project requirements. Request a Quotation If you are sourcing 3LPE coated carbon steel pipe for an oil, gas, water transmission, or industrial pipeline project, please send us your technical requirements for review. We welcome inquiries from pipeline contractors, engineering companies, distributors, and industrial buyers. Contact us to discuss your project specifications and request a quotation for 3LPE coated steel pipe.

Applications:

3LPE coated carbon steel pipe is designed for pipeline projects requiring external corrosion protection. Typical applications include: -Oil and Petroleum Pipelines: For suitable petroleum transmission systems requiring external coating protection. -Natural Gas Pipelines: For compatible gas transmission and distribution projects according to engineering specifications. -Water Transmission Pipelines:For water conveyance infrastructure where the pipe and coating system meet the required service conditions. -Underground Pipeline Networks: For buried pipelines exposed to soil, moisture, and environmental corrosion risks. -Industrial Fluid Transportation: For industrial pipeline systems handling compatible fluids under specified operating conditions. -Pipeline Infrastructure Projects: For new pipeline construction, expansion, and replacement projects requiring externally coated steel pipes. The appropriate pipe grade, dimensions, coating specification, and service conditions should be confirmed before ordering.

FAQ：

Q1: What is the minimum order quantity for 3LPE coated steel pipe? A: The minimum order quantity is 1 ton. Please confirm the required pipe specifications and quantity with us before placing an order. Q2: What is 3LPE coating? A: 3LPE stands for three-layer polyethylene coating. It generally consists of a fusion-bonded epoxy primer, an adhesive layer, and a polyethylene outer layer designed to protect the external steel surface against corrosion. Q3: Is API 5L steel pipe available with 3LPE coating? A: API 5L steel pipe with 3LPE coating can be discussed according to the required grade, applicable standard, and confirmed manufacturing scope. Please provide your technical specifications for verification. Q4: Can pipe dimensions and coating specifications be customized? A: Pipe dimensions, wall thickness, length, and coating requirements can be reviewed according to project needs and actual manufacturing capabilities. Please send your required specifications for confirmation. Q5: What applications are suitable for 3LPE coated steel pipe? A: Depending on the pipe grade, coating specification, and service conditions, it can be considered for suitable oil, gas, water transmission, underground pipeline, and industrial pipeline projects. Q6: What quality inspections are available? A: Inspection items depend on the agreed technical specification. They may include dimensional checks, visual inspection, coating thickness, coating continuity, adhesion, and other applicable tests. Available inspection records and documents should be confirmed before ordering. Q7: How can I obtain a quotation? A: Please provide the required steel grade, outside diameter, wall thickness, pipe length, quantity, coating specification, and delivery destination. Drawings or technical documents are also helpful for preparing a project-specific quotation. Q8: How is the pipe packaged for transportation? A: Packaging is arranged according to pipe dimensions, coating protection requirements, shipping method, and destination. Please share your delivery requirements so the suitable packaging and logistics arrangements can be discussed.