Q355B Longitudinally Welded High-quality LSAW Steel Pipes
Wall Thickness: 6mm-50mm.
Length: Single Random, Double Random & Customized Length up to 48 Meters.
End: Plain End, Beveled End.
Longitudinal submerged arc welded (LSAW) steel pipes are a type of welded steel pipe characterized by a unique manufacturing process and a wide range of applications. This type of steel pipe is manufactured by machining steel plates into a cylindrical shape and then welding them longitudinally using submerged arc welding technology.
● Steel Plate Preparation: High-quality steel plates are selected according to specific requirements to ensure the necessary mechanical properties and chemical composition.
● Forming: Steel plates are processed into cylindrical steel pipes through processes such as bending, rolling, or pressing (JCOE and UOE). Pre-bent pipe edges facilitate welding.
● Welding: Submerged arc welding (SAW) technology is used, maintaining the arc under a layer of flux. This method produces high-quality, low-defect, and well-fused welds.
● Ultrasonic Testing: Ultrasonic testing is performed after welding to detect any internal or external defects in the weld area.
● Flaring: The steel pipe is flared to achieve the required diameter and wall thickness, thereby improving dimensional accuracy.
● Final Inspection: A comprehensive inspection, including visual inspection, dimensional checks, and mechanical property testing, is conducted to ensure the quality of the steel pipe.
● Cost-effective: Due to its efficient manufacturing process, LSAW steel pipes offer a cost-effective solution for large-diameter piping and structural applications.
● High strength: The longitudinal welding process imparts excellent and uniform mechanical properties to the steel pipes.
● High dimensional accuracy: LSAW steel pipes offer high dimensional accuracy, making them suitable for applications with stringent tolerance requirements.
● High weld quality: Submerged arc welding produces high-quality welds with high fusion and minimal defects.
● Wide range of applications: LSAW steel pipes are widely used in various industries such as oil and gas, construction, and water supply due to their adaptability and durability.
GNEE STEEL was established in 2008 and mainly engages in steel export trade. We export large quantities of Q355B welded steel pipes to projects in numerous countries and regions. Through our professional technology and integrated procurement and logistics services, we have established stable partnerships with clients in multiple countries.
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