X65 PSL2 line pipe is a low-alloy high-strength steel designed specifically for acidic service under the API 5L standard. "X65" indicates its minimum yield strength of 65 ksi (approximately 448 MPa). This material achieves a balance between high strength and corrosion resistance through microalloying (such as the addition of niobium and titanium) and controlled rolling and cooling technology, making it suitable for transporting acidic media with an H₂S partial pressure ≥0.0003 MPa.
Built for Harsh Environments: Grade X65 high-strength steel with 3PE coating offers superior performance in sour service and arctic conditions.
API 5L X65 PSL2 Line Pipes for oil & gas Product Dimensions & Specifications Table
| Manufacturing Process | Outer Diameter (OD) Range | Wall Thickness (WT) Range | Standard Lengths |
| Seamless (SMLS) | 2" – 24" (60.3 – 610mm) | SCH 20 – SCH XXS (Up to 60mm) | 5.8m / 6.0m / 11.8m / 12m |
| ERW / HFW | 4" – 24" (114.3 – 610mm) | Max 25.4mm | Max 18m |
| LSAW (Straight Seam) | 16" – 60" (406.4 – 1524mm) | 6.0mm – 60mm | Max 12.5m / 18m |
Note: All X65 PSL2 pipes include mandatory Charpy V-notch impact testing at 0°C or -20°C to ensure toughness in extreme South American climates.
3PE Anti-Corrosion Process & Applications of API 5L X65 PSL2 Pipeline for oil and gas
The Three Layers:
- Bottom Layer (FBE): Fusion Bonded Epoxy provides excellent chemical adhesion and resistance to cathodic disbondment.
- Middle Layer (Adhesive): A copolymer adhesive binds the epoxy to the outer layer.
- Top Layer (PE): High-density polyethylene provides the mechanical armor against physical impact and moisture.
Applications in South America:
- Andean Mining & Gas Lines: 3PE is the only choice for rocky, mountainous terrains where pipes face severe abrasion during backfilling.
- Amazon Basin Oil Fields: The polyethylene top layer acts as a waterproof shield against high humidity and acidic tropical soils.

Maximize Your Pipeline's ROI: Get a Competitive Quote for X65 PSL2 Pipes with Factory-Applied 3LPE Coating Today. [Request a Quote]
3PE vs. FBE: Which One Fits Your Project?
Test and inspection of API 5L X65 PSL2 High Yield Line Pipes

API 5L X65 PSL2 3PE Pipeline Packaging & Transportation
Shipping to ports like Santos (Brazil), Valparaiso (Chile), or Barranquilla (Colombia) involves 45-60 days of exposure to sea salt and humidity. Our specialized logistics include:
Bevel Protection: We use heavy-duty plastic or composite protectors to ensure X65's precision bevels arrive ready for welding.
Coating Safeguards: Every 3PE pipe is separated by rubber strips or straw ropes to prevent "coating-to-coating" friction during the voyage.
UV Protection: Since South American ports can have long customs delays, we offer UV-resistant wrapping to prevent PE degradation under the tropical sun.
ISPM 15 Compliance: All wooden dunnage is heat-treated and IPPC-stamped for seamless customs clearance in Brazil and Chile.

Zero Damage, Zero Delays: Secure Your X65 PSL2 3PE Supply Chain with our Specialized Logistics to South American Ports. [Inquire Now]
Mil Test Certificate of API 5L X65 Pipeline

FAQ
What is API 5L X65 material grade?
API 5L Grade X65 or L450 PSL1 pipe is normal carbon steel material among the tree types and for common use, (None corrosion environment but in high pressure pipelines required a certain mechanical properties). so it has the highest content of C, Mn, Si, P, S than the other two types.
What is the composition of API X65?
X65 steel is classified as a low-carbon alloy steel, specifically designed for pipeline applications. Its chemical composition typically includes around 0.06% to 0.15% carbon, with manganese content ranging from 1.2% to 1.6%.
What is the difference between API 5L X65 PSL1 and PSL2?
API 5L PSL1 steel line pipe has different types of ends,such as plain end,threaded end,bevel end and special coupling pipe,while API 5L PSL2 steel line pipe has only plain end. API 5L PSL1 steel pipes can be produced by various welding methods. However, continuous welding is limited to Grade A25.
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