Line pipe for onshore applications, developed for severe working environments. Line pipe is best to meet the oil industry’s needs for onshore transportation and are ideal for use in extreme conditions such as corrosive environments, low and high temperatures, high pressure and sour service.
Oil and gas gathering lines are steel pipes that transport oil or gas from the producing area to a storage facility or larger main pipeline.
Natural gas is transported through the transmission pipeline system, which is composed of large-diameter steel pipe. welded, large-diameter pipes used for the construction of onshore long-distance gas transmission pipeline systems.
The American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for pipeline transportation systems in the petroleum and natural gas industries. API 5L 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.
Grades covered by this specification are A25 ,A ,B (and the following “X” Grades), X42, X46, X52, X56, X60, X65, X70, X80. The two digit number following the “X” indicates the Minimum Yield Strength (in 000′s psi) of pipe produced to this grade.
API 5L/ISO 3183 Gr. A, B, X42, X46, X52, X56, X60, X65, X70, X80
ASTM A134 and ASTM A135
CSA Z245.1 Gr. 241, 290, 359, 386, 414, 448, 483, 550