LSAW (Longitudinal Submerged Arc Welded)

LSAW pipes are produced by forming hot-rolled steel plates into a cylindrical shape and welding them along the length with submerged arc welding processes. This method provides strong, high-quality welds ideal for high-pressure and large-diameter applications.

Grades:

1. API 5L:
   • Grades X42, X46, X52, X56, X60, X65: Used for pipelines in the oil and gas industry.
2. ASTM A252:
   • Grades 1, 2, 3: Suitable for piling applications.
3. ISO 3183:
   • L245, L290, L360, L415: For natural gas and petroleum pipelines.

Sizes:

• Nominal Pipe Size (NPS): Typically ranges from 16 inches to 60 inches
• Wall Thickness: Varies according to pipe diameter and application requirements

Applications:

1. Oil and Gas Transmission: Ideal for long-distance pipelines due to their strength and durability.
2. Water Supply: Used in large-diameter water mains and distribution systems.
3. Structural Applications: Employed in piling, foundation work, and other structural supports.

LSAW pipes are valued for their strength, ability to handle high pressures, and suitability for large-diameter applications, making them essential for major infrastructure projects and industrial applications.