Thick-walled LSAW pipe is a large-diameter, thick-walled steel pipe made from medium-thick steel plates through forming and double-sided submerged arc welding. It boasts advantages such as high pressure resistance, dense welds, dimensional stability, and good low-temperature toughness. Thick-walled LSAW pipe refers to straight-seam submerged arc welded steel pipes with a wall thickness exceeding 30mm, reaching a maximum of 60–120mm. As a manufacturer specializing in export-oriented thick-walled LSAW pipes, we have established a standardized service system covering the entire process, from product quality and customized services to quality certification and logistics after-sales support, providing global buyers with high-performance, cost-effective, and highly adaptable LSAW pipes.
The core advantage of thick-walled LSAW pipe lies in its superior pressure resistance due to its thick walls. We manufacture strictly according to international standards, while also allowing for flexible adjustments based on specific project needs, ensuring product adaptability to complex situations. Detailed specifications are as follows:
Outer Diameter: Standard range 406mm-1829mm, customizable up to 2000mm, covering all scenarios from small industrial pipelines to large long-distance oil and gas pipelines;
Wall Thickness: Standard range 12mm-100mm, tolerance controlled within ±5%, meeting standard requirements, and will not deform or leak under high pressure and heavy load environments;
Length: Standard lengths 6m, 12m, and 12.6m, customizable to any length within the range of 0.5m-24m to meet the installation needs of different scenarios, eliminating the need for secondary processing on-site and significantly improving production efficiency;
Tolerance Accuracy: Outer diameter tolerance controlled within 0.1%, wall thickness tolerance within ±5%, high dimensional accuracy, ensuring tight pipe connections;
Surface Treatment: Standard treatments include pickling, phosphating, sandblasting, anti-corrosion coating, galvanizing, and painting, with thickness controlled above 2.5mm, ensuring stable use in harsh environments such as humidity, saline-alkali, and chemical corrosion.
Thick-walled LSAW pipes, thanks to their core advantages, are used in various industries and fields worldwide. Their core functions are detailed below:
High Pressure Resistance: The thick-walled design combined with high-quality materials can withstand pressures up to 25MPa, preventing deformation and leakage when transporting high-pressure media. It is suitable for long-distance, high-pressure transportation applications;
Stable Transportation: The smooth inner wall of the pipe reduces resistance during transportation, effectively improving efficiency. High dimensional accuracy and tight connections prevent media leakage;
Easy Installation and Maintenance: Pipe connections require only simple welding or flange connections, simplifying installation. The durable anti-corrosion coating ensures long-lasting performance and low maintenance costs.
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