Main features of API 5L X65 tubes

API 5L X65 tubes are higher level pipeline steels under API 5Ltechnical standard, and its specification level is divided into PSL1 and PSL2. API 5L X65 tubes are applicable for onshore/offshore and sour services, H2S corrosive environment included.

API 5L X65 tubes chemical composition:

Grade	C	Mn	P	S	Si	V	Nb	Ti
API 5L X65 PSL1	0.26	1.45	0.030	0.030		Nb + V + Ti≤0.15%
API 5L X65 PSL2	0.12	1.60	0.025	0.015	0.45	Nb + V + Ti≤0.15%

API 5L X65 tubes mechanical properties:

Grade	Yield Strength	Tensile Strength
Grade	Mpa (Psi)	Min Mpa (Psi)
API 5L X65 PSL1	Min 450 (65300)	Min 535 (77600)
API 5L X65 PSL2	Min 450 (65300)- 600(87000)	535 (77600)- 760(110200)

API 5L X65 tubes can be API 5L X65 seamless steel tubes, API 5L X65 ERW tubes (electric resistance welded), API 5L X65 SSAW tubes, API 5L X65 LSAW tubes. API 5L X65 tubes are used for pipeline transportation systems in the petroleum and natural gas industries.

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