ERW Pipe

Our ERW (Electric Resistance Welded) steel pipes are manufactured from high-quality steel coils through advanced continuous roll forming and high-frequency induction welding. This state-of-the-art production process ensures exceptionally tight dimensional tolerances, uniform wall thickness, and an ultra-smooth internal and external surface. Designed for reliability under pressure, our ERW pipes deliver structural integrity and excellent machinability, making them a cost-effective, versatile, and high-performance solution for both fluid transportation and mechanical applications worldwide.

SSAW Pipe

SSAW (Spirally Submerged Arc Welding) steel pipe, also known as spiral welded pipe, is manufactured from hot-rolled steel coils that are spirally formed and welded by double-sided submerged arc welding. The spiral weld seam is uniformly distributed along the pipe body, enabling the same coil to produce various diameters with wide material adaptability. The spiral forming process allows the weld to avoid principal stress directions, resulting in favourable stress distribution. It is widely used in long-distance oil and gas pipelines, waterworks, piling foundations, and steel structures, making it an ideal choice for large-diameter fluid transmission and cost-effective structural applications.

LSAW Pipe

LSAW (Longitudinally Submerged Arc Welded) steel pipe, also known as straight seam submerged arc welded pipe, is manufactured from hot-rolled steel plates that are formed into a cylindrical shape and welded by double-sided submerged arc welding along a single longitudinal seam. The longitudinal weld seam ensures consistent weld quality and full penetration across the entire pipe length. Compared to spiral welded pipes, LSAW pipes offer superior dimensional accuracy, smaller weld deformation, and more uniform mechanical properties. With excellent resistance to high pressure and harsh conditions, they are the preferred choice for high-grade long-distance oil and gas trunk lines and critical offshore pipeline systems.