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API 5L X60 PSL2 Resistance Welded Pipe
API 5L X60 PSL2 Resistance Welded Pipe suppliers
API 5L X60 PSL2 Resistance Welded Pipe factory
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API 5L X60 PSL2 Resistance Welded Pipe
X60 PSL2 electric resistance welded (ERW) line pipe is a high-strength, low-alloy steel pipe; the "X60" in its designation signifies a minimum yield strength of 60,000 pounds per square inch (approximately 414 MPa). These pipes are typically manufactured from carbon-manganese steel or micro-alloyed steel, incorporating small additions of alloying elements—such as niobium, vanadium, and titanium—to enhance strength and toughness while maintaining excellent weldability and corrosion resistance.
X60 line pipe is a type of steel pipe utilized in the oil and natural gas industries for the conveyance of media such as gas, water, and oil; it complies with the API SPEC 5L and GB/T 9711 standards. X60 line pipe features a tensile strength of ≥ 520 MPa, a yield strength ranging from 415 to 565 MPa, a yield-to-tensile ratio of ≤ 0.85, an elongation of 18%, and an impact energy of ≥ 40 J at 0°C; its heat treatment condition is normalized.
During the manufacturing process, the pipe undergoes ultrasonic testing, radiographic testing, and physicochemical analysis, and is further subjected to anti-corrosion treatments to enhance its resistance to environmental erosion.
API 5L X60 PSL2 Line Pipes for oil & gas Dimensions & Tolerances (Standard ERW Range)
Dimension
Common ERW Range
Tolerances
Outside Diameter (OD)
2" (60.3mm) - 24" (610mm)
Ends: ± 0.5% OD / Body: ± 0.75% OD
Wall Thickness (WT)
3mm - 22mm (SCH 40, STD, 80, XS)
+ 15.0%, - 12.5%
Length
5.8m, 6.0m, 11.8m, 12.0m (SRL/DRL)
Customizable per order
Straightness
Total deviation ≤ 0.2%
Ensures smooth field alignment and welding
Charpy V-Notch (CVN) Impact Test
Test Item
Requirement
Remarks
Test Temperature
0°C (or lower per agreement, e.g., -10°C / -20°C)
Critical for high-altitude/cold regions
Average Absorbed Energy
Typically ≥ 27 J (Full-size specimen)
Prevents rapid crack propagation
Mandatory Testing & NDT (Non-Destructive Testing)
Hydrostatic Test: 100% individual pipe testing, typically held for 5–10 seconds to ensure zero leakage.
Online Ultrasonic Testing (UT): 100% full-length ultrasonic inspection of the weld seam.
Weld Seam Heat Treatment (SHT/Annealing): Mandatory for ERW pipes. The weld must be induction heated (typically normalized) to eliminate welding stresses.
Drop Weight Tear Test (DWTT): Typically required for PSL2 pipes with OD>508mmOD>508mm to evaluate fracture mode.
Coating and Protection of API 5L X60 PSL2 ERW Pipeline
3LPE (3-Layer Polyethylene): The preferred choice for buried oil and gas lines, offering a 30-50 year service life.
FBE (Fusion Bonded Epoxy): Excellent for station piping and as a primer for high-temperature applications.
Internal Lining: Often requested for water or mining slurry transport to reduce friction and internal corrosion.
Logistics of API 5L X60 PSL2 pipelines for combustible fluids
Ready for Shipping: API 5L X60 PSL2 ERW Pipe Manufacturing Timeline & Stock Availability.
FAQ
What are the mechanical properties of API 5L X60 large diameter welded pipe
X60 large-diameter steel pipes are suitable for acidic environments (sour service) and possess special properties against hydrogen-induced cracking (HIC) and sulfide stress corrosion (SSCC). Their yield strength must reach 413-517 MPa, tensile strength ≥ 517 MPa, and Charpy impact energy at -20℃ must reach 40 J or more.
What is api 5l x60 large diameter pipe yield strength
API 5L X60 large-diameter straight seam steel pipes strictly adhere to the standards and specifications set by the American Petroleum Institute. In X60, "X" represents pipeline steel, and "60" indicates a minimum yield strength of 60 ksi (approximately 414 MPa).
