3PE Coated LSAW Pipe For Oil Pipeline

3PE Coated LSAW Pipe For Oil Pipeline:

 

High-quality ‌3PE coated LSAW steel pipe‌ compliant with ‌API 5L, ISO 21809-1, DIN 30670‌. Ideal for oil, gas, and water transmission. Custom diameters 219-1422mm, wall thickness 6-50mm. Factory direct from Tianjin, China.

 

‌Technical Specifications

 

Parameter	Specification	Standard Reference
‌Pipe Type‌	LSAW (Longitudinally Submerged Arc Welded)	API 5L, ISO 3183, GB/T 9711
‌Coating System‌	3PE (Three-Layer Polyethylene)	ISO 21809-1, DIN 30670, GB/T 23257-2017
‌Base Material‌	Carbon steel: Gr. B, X42, X46, X52, X60, X70, X80	API 5L PSL1 / PSL2
‌Outer Diameter (OD)‌	219 mm - 1422 mm (8 " - 56")	-
‌Wall Thickness‌	6 mm - 50mm	-
‌Pipe Length‌	6 m - 12.5 m (customizable)	-
‌Surface Preparation‌	Sandblasting to Sa 2.5 grade, anchor profile 50-100 μm	ISO 8501-1
‌Epoxy Powder (FBE) Layer‌	≥120 μm (≥150 μm for large diameters)	ISO 21809-1
‌Adhesive Layer (AD)‌	170 - 250 μm	DIN 30670
‌HDPE Outer Layer‌	See table below (by pipe diameter)	GB/T 23257-2017
‌Total Coating Thickness‌	‌Standard Grade‌: 1.8-2.5mm	-
	‌Reinforced Grade‌: 2.5-3.7mm

 

‌HDPE Outer Layer Thickness by Pipe Diameter

 

Pipe Diameter (DN)	Minimum HDPE Thickness (mm)	Total Coating Thickness (mm)
≤ 100	2.5	≥ 2.5
100-250	2.7	≥ 2.7
250-500	2.9	≥ 2.9
500-800	3.2	≥ 3.2
≥ 800	3.7	≥ 3.7

 

Note: Reinforced grade is mandatory for offshore, high-pressure, and corrosive soil applications.

 

‌Performance & Quality Assurance‌

 

Test Parameter	Requirement	Test Standard
‌Adhesion Strength (Peel)‌	≥70 N/cm	ISO 21809-1
‌Impact Resistance‌	≥5 J/mm	GB/T 23257-2017
‌Cathodic Disbondment (65°C, 48h)‌	≤ 8mm	ISO 21809-1
‌Vicat Softening Point‌	≥ 110°C	ISO 306
‌Electrical Spark Test‌	25 kV (oil/gas), 15 kV (water)	ISO 21809-1
‌UV Resistance‌	No cracking or embrittlement after 3000h	ASTM D4329
‌Service Temperature Range‌	-30°C to 80°C	-
‌Design Life‌	30-50 years	-

 

‌Applications‌

 

3PE Coated LSAW Pipe For Oil Pipeline:

 

‌Oil & Gas Transmission‌	Onshore and offshore pipelines (API 5L PSL2 compliant)
‌Municipal Water & Sewage‌	Potable water, wastewater, and reclaimed water systems
‌Chemical & Petrochemical‌	Transport of corrosive fluids under high pressure
‌Power & Thermal Plants‌	Cooling water and steam lines
‌Marine & Offshore‌	Subsea pipelines, platform risers, and jacket structures
‌Mining & Slurry Transport‌	Abrasion-resistant conveyance systems

 

‌Why Choose Our 3PE Coated LSAW Pipes?‌

 

✅‌Certified Compliance‌: All pipes tested and certified per ‌API 5L, ISO 21809-1, DIN 30670‌.

 

✅‌Full Traceability‌: Mill test reports (MTR), coating thickness logs, and NDT records provided per batch.

 

✅‌Customization‌: OD, wall thickness, length, end preparation (bevel, threading), and coating grade tailored to project specs.

 

✅‌Logistics‌: Shipment from ‌Tianjin Port‌, FOB/CIF/CFR terms, export-ready packaging.

 

✅‌Support‌: Technical drawings, installation guides, and post-sale coating repair kits available.

 

export Reference

 

★‌Project Lead‌: China Petroleum Pipeline Bureau (CPPB), CNPC - $1.2B Crude Export Pipeline System (CEPS), Iraq.

 

★‌Product Supplied‌: 40,000 metric tons of ‌3PE-coated LSAW steel pipes‌ (API 5L X60 PSL2), OD: 406-1219 mm, wall thickness: 12.7-25.4mm.

 

★‌Coating System‌: 3PE (FBE + Adhesive + HDPE), total thickness 3.0-3.7 mm; FBE ≥150 μm, HDPE 3.2mm (for ≥800mm OD), surface prep: Sa 2.5.

 

★‌Standards Compliance‌: Fully compliant with ‌ISO 21809-1‌ and ‌GB/T 23257-2017‌.

 

★‌Field Performance‌: ‌Zero coating failures‌ after 18 months in high-salinity, 50°C desert conditions - verified by SGS Iraq.

 

★‌Export Execution‌: Shipped from ‌Tianjin Port‌, CIF Basra; 100% NDT tested; full MTRs, coating logs, and ISO 9001/45001 documentation provided.

 

★‌Client Endorsement‌: Officially added to the approved vendor list by Basra Energy Company.

 

3LPE Coating process

 

 

3PE coated LSAW pipe for oil pipeline