Seamless steel Line Pipe API 5L X60 PSL2 12

API 5L X 60 Carbon Steel Seamless Pipe is one of the strongest pipes in this grade. It is designed with excellent dimensional accuracy and is available in schedules between 10 to 60 and XXS. The API X60 Carbon Steel Line Pipe is used in transporting water, oil, and gas. These pipes are available with a coating of paint, Fpe, annealed, or galvanized forms. This gives them enhanced protection against corrosion and abrasion.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 pipes (hot rolled seamless pipes 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

API 5L X60N / X60Q PSL 2 Chemical Requirements
Grade	Composition, %
Grade	C	Si	Mn	P	S	V	Nb	Ti	Other
	C	Si	Mn	P	S	V	Nb	Ti	Other
BN	0.24	0.4	1.2	0.025	0.015	c	c	0.04	e,l
X60N	0.24	0.45	1.4	0.025	0.015	0.1	0.1	0.04	g,h,l
BQ	0.18	0.45	1.4	0.025	0.015	0.05	0.05	0.04	e,l
X60Q	0.18	0.45	1.7	0.025	0.015	g	g	g	h,l