Line Pipe

Line pipe refers to the steel pipe used as the main component of pipeline transportation systems for conveying liquids and gases over long distances. It is predominantly used for transporting oil, natural gas, and can also be used for other media like water, chemicals, and slurry.

Line Pipe
Line PipeLine PipeLine Pipe


    • High Strength and Pressure Resistance: Made from high-quality carbon or low-alloy steel, line pipe is designed to withstand high internal pressures.
    • Durability and Reliability: Its reliability is further ensured through stringent testing and inspection procedures, including hydrostatic and non-destructive testing, as mandated by standards like API 5L.
    • Cost-Effectiveness over Long Distances: For large-volume, long-distance transport, pipelines are one of the most economical methods. They offer a lower cost per unit transported compared to other modes like rail or truck over their lifetime.


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Line Pipe Technical

Tolerance on Dimensions

Chemical Components & Mechanical Properties

Standard Grade Chemical Components (%) Mechanical Properties
C Si Mn P S Tensile Strength(Mpa) Yield Strength(Mpa)
API 5L PSL1 A 0.22 – 0.9 0.03 0.03 ≥331 ≥207
B 0.28 – 1.2 0.03 0.03 ≥414 ≥241
X42 0.28 – 1.3 0.03 0.03 ≥414 ≥290
X46 0.28 – 1.4 0.03 0.03 ≥434 ≥317
X52 0.28 – 1.4 0.03 0.03 ≥455 ≥359
X56 0.28 – 1.4 0.03 0.03 ≥490 ≥386
X60 0.28 – 1.4 0.03 0.03 ≥517 ≥448
X65 0.28 – 1.4 0.03 0.03 ≥531 ≥448
X70 0.28 – 1.4 0.03 0.03 ≥565 ≥483
API 5L PSL2 B 0.24 0.4 1.2 0.025 0.015 ≥414 ≥241
X42 0.24 0.4 1.3 0.025 0.015 ≥414 ≥290
X46 0.24 0.4 1.4 0.025 0.015 ≥434 ≥317
X52 0.24 0.45 1.4 0.025 0.015 ≥455 ≥359
X56 0.24 0.45 1.4 0.025 0.015 ≥490 ≥386
X60 0.24 0.45 1.4 0.025 0.015 ≥517 ≥414
X65 0.24 0.45 1.4 0.025 0.015 ≥531 ≥448
X70 0.24 0.45 1.4 0.025 0.015 ≥565 ≥483
X80 0.24 0.45 1.4 0.025 0.015 ≥621 ≥552
Application of Line Pipe


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