What is API 5L X60 steel pipe?

API 5L X60 is a common high grade pipe material in API 5L specifciations for oil and gas transmissions. It's also called L415 pipe, which named by yield strength minimum in 415 Mpa (60,200 psi). It covers manufacturing types in seamless (hot rolled and colde rolled), and welded in ERW, LSAW, SSAW (HSAW).

API 5L X60 pipe ranges in PSL1, PSL2, onshore/offshore, and sour service.

PSL1 is for common use material delivery conditions R As Rolled.

PSL2 specified with suffix letter N, Q, M, eg API 5L X60Q/M/N (Where sour services is described as API 5L X60QS/MS)

PSL2 is strict and higher than PSL1 on chemicals, mechanical properties and test requirements. View here differences between.

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