API 5L PSL1 and PSL2 Seamless Steel Line Pipe and Welded Steel Line Pipe
The American Petroleum Institute specification API 5L line pipe 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.API 5L are divided into two product levels:API 5L PSL1 and API 5L PSL2.PSL1 is a standard quality for line pipe where PSL2 contains additional chemical,mechanical properties,and testing requirements.
Grades covered by API 5L specification are A25,A,B and “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.
It includes plain-end,threaded-end,and belled-end pipe,as well as through-the-flowline (TFL) pipe,and pipe with ends prepared for use with special couplings.
Technical delivery condition:
|PSL||Delivery Condition||Pipe grade|
|PSL1||As-rolled, normalized, normalizing formed||A|
|As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered or if agreed Q&T SMLS only||B|
|As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered||X42, X46, X52, X56, X60, X65, X70|
|PSL 2||As-rolled||BR, X42R|
|Normalizing rolled, normalizing formed, normalized or normalized and tempered||BN, X42N, X46N, X52N, X56N, X60N|
|Quenched and tempered||BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q|
|Thermomechanical rolled or thermomechanical formed||BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M|
|Thermomechanical rolled||X90M, X100M, X120M|
|The suffice (R, N, Q or M) for PSL2 grades, belongs to the steel grade|
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