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API Seamless Line Pipe

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
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
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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