Tailored Jcoe Pipe for Versatile Pipeline Construction Needs

• Customization: Available
• Condition: New
• Automation: Automatic
• Model NO.: JCOE Pipe
• After-sales Service: Overseas Service Center Available
• Od: 508 mm (20")
• Wt: 15.9 mm (0.625")
• Impact Test: -30°c, 60j Avg.
• Coating: External 3lpe (2.5mm) + Internal Fbe (250μm)
• Transport Package: Shipping Containers
• Specification: Based on customer needs
• Trademark: Holu
• Origin: Hefei Anhui China
• HS Code: 7305110000
• Production Capacity: 600 Milion Tons
• Package Size: 300.00cm * 120.00cm * 180.00cm
• Package Gross Weight: 2000.000kg

Product Description

Product Description

Product Series
JCOE Pipe	Tapered welded pipe	Round to Square Pipe	Coiled Welded Pipe	Straight seam welded pipe

JCOE (J-ing, C-ing, O-ing, E-ing) steel pipe is a longitudinally welded pipe manufactured through a multi-step forming process. It is widely used in oil & gas pipelines, water transmission, and structural applications due to its high strength and precise dimensional control.

Key Features:

1. Manufacturing Process:

   • J-ing: The steel plate is pre-bent into a "J" shape at both edges.

   • C-ing: The plate is further pressed into a "C" shape.

   • O-ing: The open "C" section is compressed into an "O" (round) shape.

   • E-ing (Expanding): The pipe is mechanically expanded to ensure dimensional accuracy.

2. Material & Grades:

   • Complies with API 5L, ISO 3183, EN 10224 standards.

   • Common grades: Gr.B, X42 to X80 (PSL1/PSL2) with enhanced toughness for low-temperature service.

3. Dimensions & Tolerances:

   • Diameter: 219 mm to 1422 mm (or custom sizes).

   • Wall Thickness: 6 mm to 40 mm.

   • Length: Typically 6-12.2 m (or as per project requirements).

4. Mechanical Properties (Example - X65 PSL2):

   • Yield Strength (Rt0.5): ≥450 MPa (65,300 psi).

   • Tensile Strength (Rm): 535-760 MPa.

   • Elongation: ≥20% (50mm gauge length).

   • Charpy Impact: ≥60 J at -20°C (for Arctic conditions).

5. Surface Treatment:

   • External Coating: 3LPE (3-layer polyethylene), FBE (fusion-bonded epoxy).

   • Internal Coating: FBE or cement lining for corrosion resistance.

6. Testing & Certification:

   • Hydrostatic test, ultrasonic testing (UT), radiographic testing (RT).

   • Full traceability with Mill Test Certificates (MTC) per EN 10204/3.1B.

Advantages of JCOE Pipes:

High dimensional accuracy due to O-ing and expanding.
Superior weld integrity compared to straight-seam SAW pipes.
Suitable for high-pressure and harsh environments (e.g., subsea pipelines).

Typical Applications:

• Oil & gas transmission pipelines.

• Water and sewage systems.

• Structural piling and offshore platforms.

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