2025-03-04
API 5L pipe (seamless pipe and welded pipe) has PSL1 and PSL2 product specifications, which are different in chemical composition, manufacturing process, mechanical strength, heat treatment, test records, traceability, etc.The pipeline in API 5L PSL2 is higher than PSL1One. PSL is the abbreviation of product standard grade. Standard grades of pipeline products include PSL1 and PSL2.