API Seamless Line Pipe

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The API seamless line pipe is used to transfer oil, gas or water to the industrial end users. The linepipe takes two forms, seamless or with seams. It often goes through special machining process to receive a threaded, shouldered or plain end. For joining methods, the linepipe can be butt welded, threaded, or socket welded.

Our API seamless line pipe specifically refers to the pipe that has been tested to and complies with the specification API 5L. API linepipe-making process is similar to that of the ordinary seamless steel pipe, but the former has more stringent precision and tolerance band requirements to meet. In order for a better understanding of our API 5L linepipe, we give the following detailed specification and order information for reference.

Specification: API SPEC 5L PSL1/PSL2
1. Process: hot rolling, cold drawing, hot-expanding
2. Standards: API 5L PSL1, PSL2
3. Specification Range:
OD: 3''-24'' (48mm-610mm)
WT: SCH10-SCHXXS
4. Materials: GR.B, L245, L290, L360, X42, X46, X56, X65, X70
5. Testing: eddy current, hydrostatic, ultrasonic, intergranular corrosion.
6 Packing: in bundles with steel strips, seaworthy packing as per customer's requirements

Tolerance

Spec.	DIA		Thickness
	DIA		A25.A.B		X42-X70
	D<60.3	0.41/-0.40mm	D<73	20/-12.5%	D≥73	15/-12.5%
API SPEC 5L	D≥60.3	0.75/-0.40mm	D≥73	15/-12.5%	D>73	15/-12.5%

Chemical Composition

Spec.	Steel Grade	C	Mn	P		S
Spec.	Steel Grade	Max.	Max.	Min.	Max.	Max.
API SPEC 5L	PSL1 ( GB/T9711.2)
	A25II	0.21	0.6		0.03	0.03
	A25III	0.21	0.6	0.45	0.8	0.03
	A	0.22	0.9		0.03	0.03
	B	0.28	1.2		0.03	0.03
	X42	0.28	1.3		0.03	0.03
	X46.X52.X56	0.28	1.4		0.03	0.03
	X60.X65.X70	0.28	1.4		0.03	0.03
	PSL2
	B	0.24	1.2		0.025	0.015
	X42	0.24	1.3		0.025	0.015
	X46.X52.X56	0.24	1.4		0.025	0.015
	X60.X65.X70.X80	0.24	1.4		0.025	0.015

Mechanical Properties

Spec.	Steel Grade	Yield Strength (MPa )		Tensile Strength (MPa )		Elongation
API SPEC 5L	PSL1 ( GB/T9711.2)
	A25	172		310
	A	207		331
	B	241		414
	X42	290		414
	X46	317		434
	X52	359		455
	X56	386		490
	X60	414		517
	X65	448		531
	X70	483		565
	PSL2
		Min.	Max.	Min.	Max.
	B	241	448	414	758
	X42	290	496	414	758
	X46	317	524	434	758
	X52	359	531	455	758
	X56	386	544	490	758
	X60	414	565	517	758
	X65	448	600	531	758
	X70	483	621	565	758
	X80	552	690	621	827

As an experienced API 5L line pipe manufacturer based in China, we also provide other premium tubular products including the spiral-seam tube, corrosion-resistant tube, and pipe casing. Our product is commonly used to convey oil, gas, and water in petroleum and natural gas industries. It is also employed in the power station and reservoir. If you have any question about out API 5L, please contact us. We look forward to cooperation with you.

Related Names
Oil and Gas Pipe | Steel Pipeline | Seamless Oil Tubing

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