LSAW Steel Pip
LSAW steel pipe,short for Longitudinal Submerged Arc Welded Steel Pipe,is manufactured by cold forming or hot forming steel plates into cylindrical shape,then welding the longitudinal seam with submerged arc welding technology.It is widely...
LSAW steel pipe,short for Longitudinal Submerged Arc Welded Steel Pipe,is manufactured by cold forming or hot forming steel plates into cylindrical shape,then welding the longitudinal seam with submerged arc welding technology.It is widely recognized for high dimensional accuracy,excellent straightness,and strong pressure resistance,making it ideal for high‑end engineering applications.
Main Features
Made from high‑quality steel plates,ensuring stable mechanical properties
Single longitudinal weld,low internal stress and good concentricity
High tolerance control for diameter,wall thickness and length
Suitable for large diameter and heavy wall thickness requirements
Strict testing including ultrasonic,X‑ray,hydrostatic pressure test
Common Materials&Standards
Materials:API 5L X42,X52,X60,X65,X70,Q355B,Q245B,etc.
Standards:API 5L,ASTM A252,EN 10219,GB/T 9711,GB/T 3091
Applications
Oil,natural gas and water transmission pipelines
Piling pipes for bridges,ports and high‑rise buildings
Structural pipes in offshore engineering and power plants
Industrial process pipelines and large‑diameter fluid conveying systems
Advantages
Higher strength and stability compared with ERW pipes
Better performance under high pressure and low temperature
Customizable diameter,wall thickness and anti‑corrosion coating
Widely used in long‑distance pipelines and heavy structural projects
