X60 PSL2 oil and gas pipe is a type of line pipe. In the API standard, "X" represents line steel, and "60" is the strength grade, measured in kpsi. X60 indicates line steel with a minimum yield strength of 60 kpsi. The X60 grade has a tensile strength ≥ 520 MPa, a yield strength of 415–565 MPa, a yield-to-tensile ratio ≤ 0.85, and an elongation of 18%.

Engineered for the Andes: High-Yield X60 PSL2 Strength Meets Premium FBE Corrosion Protection.

Feature	API 5L X60 PSL2	API 5L X52 PSL2
Min. Yield Strength	415 MPa (60.2 ksi)	360 MPa (52.2 ksi)
Min. Tensile Strength	520 MPa (75.4 ksi)	460 MPa (66.7 ksi)
Impact Test (CVN)	Mandatory	Mandatory
Weldability	Excellent (Low CEQ)	Excellent
Typical Application	High-Pressure Gas/Oil	Medium-Pressure Oil/Water

FBE coating is not a simple surface painting; it is a thermosetting chemical reaction process. The following are the standardized production steps:

Surface Pre-heating & Cleaning:

First, remove oil and moisture from the pipe surface.

Shot Blasting/Grit Blasting:

Key Indicator: Must meet ISO 8501-1 Sa 2.5 standard.

Purpose: Increases the surface roughness of the steel pipe (anchor pattern depth 40-100μm), which is crucial for ensuring the epoxy powder adheres firmly to the steel.

Induction Heating:

Heats the steel pipe to 180°C - 230°C. Temperature control must be extremely precise, otherwise it will affect the cross-linking reaction of the coating.

Electrostatic Spraying:

Negatively charged epoxy powder is evenly adsorbed onto the heated steel pipe surface through a spray gun. The powder quickly melts, flows, and solidifies.

Curing & Water Quenching:

Residual heat is used to fully cure the coating, followed by cooling with cold water to lock in its physical properties.

Final Inspection:

Holiday Detection: A 2kV-2.5kV voltage is used to detect pinholes or leaks.

Thickness Measurement: Thickness is typically controlled between 300-500μm.

FBE pipe process

Feature	FBE (Single Layer Fusion Bonded Epoxy)	3PE (3-Layer Polyethylene)
Coating Structure	Single-layer Fusion Bonded Epoxy powder	FBE Primer + Adhesive Layer + Polyethylene (PE) Top Coat
Typical Thickness	300 - 600 μm (Thin Film)	2.5 - 3.7 mm (Thick Film)
Mechanical Resistance	Moderate (Prone to scratches or chips during impact)	Superior (Excellent resistance to impact, abrasion, and crushing)
Adhesion Strength	Outstanding (Chemical bonding with steel; extremely resistant to peeling)	High (Relies on the FBE primer; potential stress risks due to high thickness)
Temperature Resistance	High stability (Up to 100°C - 110°C)	Moderate (Generally limited to < 70°C due to PE softening)
Cathodic Disbondment (CD)	Excellent	Good
Handling & Logistics	Requires careful handling and specialized packaging to prevent coating damage.	Durable; withstands rougher handling and is resistant to environmental stress cracking.
Cost Efficiency	Lower initial cost	Higher initial investment
Preferred LATAM Scenarios	Acidic mining environments, high-temperature fluid transport, and potable water pipelines.	Buried pipelines in rocky terrains, long-distance sea transport, and high-impact soil conditions.

test equipment

Pipe Bundling & Separation:

Small Diameter Pipes (< 8"): Use hexagonal bundles. Each bundle is secured with at least 5 high-strength steel straps. A rubber protective pad or thick cardboard is placed between the steel straps and the FBE coating; direct contact between the steel straps and the coating is strictly prohibited.

Large Diameter Pipes (≥ 10"): Transported in bulk. Rubber strips or straw rope curtains are placed between layers to prevent friction between pipes due to ship rolling.

End Protection:

Bevel Rust Prevention: Exposed bevels are coated with high-performance transparent rust-preventive oil or varnish.

Pipe Caps: Use fully enclosed heavy-duty plastic caps. This not only prevents bevel impacts but, more importantly, prevents salt spray from entering the pipe during South American shipping and causing internal corrosion.

Bevel Protection: For X60 thick-walled pipes, steel-plastic protectors with metal frames are added to ensure that the bevel does not deform during port hoisting.

UV Protection:

Customs clearance times are long in some South American ports (such as Santos or Buenaventura), and steel pipes may be stored in open yards for weeks.

Solution: We offer an optional full-pipe white UV-resistant wrapping to prevent strong UV rays from causing the epoxy powder coating to chalk or discolor.

Safety Strategy for Long-Haul Routes

The journey from Asia to South America typically takes 45-60 days, crossing the equator with significant temperature differences and high salinity.

Vessel Booking:

Under-Deck Storage: We prioritize booking under-deck storage space for FBE pipes to avoid direct sunlight and sea (salt) erosion.

No Mixing: Ensure steel pipes are not mixed with acidic or alkaline chemicals or bulk ore.

Lifting Equipment:

At loading and unloading ports, direct contact between wire ropes or electromagnetic chucks and the FBE coating is strictly prohibited.

Standard: Use wide nylon slings with sufficient load-bearing capacity.

Container Loading :

If container transport is used, wooden bracing will be applied inside the container. Compliance: All timber has an ISPM 15 fumigation mark.

packaging and shipping of API 5L X60 PSL2 oil and gas pipelines

1. Acidic Oil and Gas Field Gathering and Transportation

In high-sulfur oil and gas fields with H₂S partial pressure ≥300 Pa, X60 PSL2 pipelines have passed HIC/SSC tests, demonstrating long-term stable transportation of sulfur-containing crude oil and natural gas. For example, the high-acid section of the West-East Gas Pipeline III project uses X60 PSL2 FBE seamless steel pipes. Through optimized chemical composition (C≤0.12%, S≤0.003%), high-performance indicators such as yield strength of 420 MPa and impact energy ≥120 J at -20℃ are achieved, ensuring a pipeline service life of over 20 years.

2. Deep-Sea High-Pressure Transportation

The quenching and tempering process of X60QS PSL2 oil and gas pipelines enables them to withstand hydrostatic pressure exceeding 100 MPa and seawater corrosion, making them widely used in subsea oil pipelines and platform risers. The CNOOC Bohai Oilfield project uses X60 PSL2 seamless pipe, which has passed NACE MR0175 certification and has operated stably for over 5 years at an H₂S partial pressure of 0.5 kPa and a temperature of -20℃.

3. Chemical and Energy Infrastructure

In chemical reactors, urban gas pipelines, and other applications, X60 PSL2 FBE pipes demonstrate significant advantages in corrosion resistance and high strength. For example, the Northwest Oilfield Shunbei No. 2 Gas Injection Project procured 2,300 tons of X60 PSL2 seamless steel pipe for enhanced oil recovery (EOR) projects, and the pipe material exhibited excellent stability in sulfur-containing media.

4. Innovative Applications in Extreme Working Conditions

The X60 PSL2 large-diameter thick-walled pipeline (wall thickness > 30 mm) developed by Baogang Group is currently the thickest acid-resistant pipeline in China. It has been successfully applied to deep-sea high-pressure projects. Its low-carbon equivalent design (CEllw ≤ 0.42%) balances welding performance and economy, promoting technological breakthroughs in high-end pipe materials.

What is API 5L grade X60 material

The API 5L X60 Pipe is composed of a chemical composition consisting of carbon, manganese, sulfur, silicon, chromium, potassium, and phosphorous. These pipes have excellent corrosion resistance and can suffice in extreme temperatures. The API 5L Grade X60 High Yield Pipe is designed with enhanced mechanical properties.

What is the yield strength of X60 pipe

Grade X60 indicates 60000 PSI minimum yield strength and 75000 PSI minimum ultimate tensile strength.

Hot Tags: api 5l x60 psl2 epoxy coated pipe, China api 5l x60 psl2 epoxy coated pipe manufacturers, suppliers, factory, Carbon steel pipe Q195 Q235 Q345, STPT 480 carbon steel pipe, STPT 370 seamless steel pipe, A53 Gr B round carbon steel tube, DIN 17175 10CrMo910 Seamless Steel Tubes, EN 10219 S355JOH carbon seamless pipe