LSAW Pipes
LSAW pipes, or Longitudinal Submerged Arc Welded pipes, are large-diameter steel pipes commonly used in the construction of oil and gas pipelines, as well as in various industrial applications. The LSAW manufacturing process involves forming a straight seam along the length of a steel plate or coil using submerged arc welding. During the LSAW process, the steel plate or coil is first molded into a cylindrical shape. Subsequently, the edges are then welded together using submerged arc welding. This results in a strong, continuous seam along the length of the pipe.
LSAW pipes are known for their high-strength and integrity, making them suitable for applications that require efficient transportation of fluids or structural support over long distances. The straight seam design contributes to the pipe’s stability and ease of inspection.
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Specifications
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| Lead Time: | 2 - 3 weeks |
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Available LSAW Pipe Sizes & Specifications
LSAW pipes are available in project-specific sizes, lengths, and specifications for heavy structural, water transmission, and industrial applications. Their straight-seam welded construction provides high load capacity, dimensional stability, and reliable performance for demanding infrastructure projects.
- ASTM A139, ASTM A252, and AWWA C200 heavy structural and water transmission standards
- Flexible, project-specific custom lengths fabricated depending on client request
- 2 to 3 weeks turnaround time for specialized fabrication and quality testing
- Straight-seam high-integrity weld configuration optimized for structural stability and direct inspection
- High-load bridge structural elements, deep drainage infrastructure, and industrial construction systems
Applications
Drainage systems
Industrial construction
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Common Questions
Frequently Asked Questions
What type of steel plates are used to produce LSAW pipes?
LSAW pipes are produced using high-quality steel plates, typically carbon steel or low-alloy steel plates with controlled strength and toughness. These plates ensure the pipes can handle high pressure and demanding applications such as oil and gas pipelines.
Are LSAW pipes suitable for large-diameter applications?
Yes, LSAW pipes are suitable for large-diameter applications, typically ranging from 16 to 60 inches (406 mm to 1626 mm) or larger. Their longitudinal weld and high-quality steel plates provide the strength and reliability needed for demanding pipeline projects.
When should LSAW pipes be used instead of SSAW pipes?
LSAW pipes should be used instead of SSAW pipes when higher pressure, tighter dimensional tolerance, and superior weld quality are required. They are ideal for critical applications such as oil and gas transmission, where strength and reliability are essential.
Discuss Your LSAW Pipe Requirements
Send us the LSAW pipe specification for your project, along with dimensions and quantity. We’ll help check available options against your requirements and prepare the details for a quotation.
