THe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. API 5L Grade B PSL 1 speficication is steel pipe for pipeline transportation systems in the petroleum and natural gas industries. API 5L Grade B PSL 1 welded steel pipe is suitable for conveying gas, water, and oil. Size range is limited only by manufacturer’s capabilities.
Specifications for API 5L adhere to the International Organization for Standardization ISO 3183, which standardizes pipeline transportation systems within the materials, equipment and offshore structures for petroleum, petrochemical, and natural gas industries. The technical committee authoring the standards recognized that there are two basic Product Specifications Levels (PSL) of technical requirements and therefore developed PSL 1 and PSL 2. PSL 1 is a standard quality for line pipe where PSL 2 contains additional chemical, mechanical properties, and testing requirements.
API 5L Grade B PSL 1 Welded Steel Pipes Specification:
Outside Diameters: 26 ″ – 60″
Schedules : 20, Std, XH, 30,
Grades : API-5L Gr B, API-5L Gr X42, API-5L Gr X52, API-5L Gr X60, API-5L Gr X65
Sizes (Seamless): 1/2″ NB – 60″ NB
Sizes (ERW): 1/2″ NB – 24″ NB
Sizes (SAW): 16″ NB – 100″ NB
Wall Thickness available: Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thk
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