Key Specifications
Diameter: 20 inches to 100 inches (508 mm to 2540 mm)
Wall Thickness: 6 mm to 25 mm

Standards: API 5L, ASTM A53, EN 10217

Material: API 5L Grade B, X42, X52, X60, X65, X70

Production Process
Plate Preparation: High-quality carbon steel plates are selected.
Forming: The plates are formed into a spiral shape using a spiral forming machine.
Welding: The spiral seam is welded using submerged arc welding (SAW).
Heat Treatment: Normalizing or quenching and tempering is performed.
Inspection: The pipes undergo rigorous testing, including ultrasonic and radiographic tests.

Applications
Oil and gas transmission pipelines
Water and sewage transportation
Structural and heavy-duty applications

Advantages
High Strength: Suitable for high-pressure and large-diameter applications.
Durability: Excellent performance in harsh environments.
Customization: Available in various grades and specifications.