API 5L Carbon Steel Pipe

High-quality API 5L carbon steel pipe for oil & gas transmission. Available in seamless and welded types, with PSL1 & PSL2 grades like B, X42, X52, X60, X70.

Categories: Carbon Steel, Carbon Steel Pipe Tags: api 5l, carbon steel pipe, oil and gas pipe, pipe

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Product Description

API 5L carbon steel pipe is manufactured according to the American Petroleum Institute (API) 5L specification for line pipe used in pipeline transportation systems in the oil and natural gas industries. It covers seamless and welded steel pipes in nominal sizes.

These pipes are designed for transporting gas, water, and oil, and are available in PSL1 and PSL2 quality levels. Gengfei Steel offers a wide range of API 5L pipes including Grade B, X42, X52, X60, X70, and more—with black paint, bevel ends, or galvanized finishes.

Specifications of API 5L Carbon Steel Pipe

Standard	API 5L PSL1 / PSL2
OD Range	1/2″ – 40″ (21.3mm – 1016mm)
Wall Thickness	SCH10 to SCH160, XXS, or custom
Length	5.8m / 6m / 11.8m / 12m / random or fixed
Ends	Plain, Beveled, Threaded, with Coupling
Surface Finish	Black varnish, anti-rust oil, galvanized
Process	Seamless (SMLS), ERW, LSAW, SSAW

API 5L Pipe Grades

Grade	Minimum Yield Strength (MPa)	Tensile Strength (MPa)
B	245	415
X42	290	415
X52	360	460
X60	415	520
X70	485	570

Advantages of API 5L Pipe

Suitable for high-pressure and long-distance transmission
Available in PSL1 and PSL2 to meet various project standards
Seamless or welded options for different application scenarios
Strict quality control, third-party inspection support
Anti-corrosion treatment available (3PE, FBE, galvanized)

Applications of API 5L Carbon Steel Pipe

Oil and natural gas pipeline systems
Offshore pipelines
Transmission of water and slurry
Refinery and petrochemical plants
Structural and piling use in energy and civil projects

FAQ: API 5L Carbon Steel Pipe

Q1: What is the difference between PSL1 and PSL2?
A: PSL2 has stricter chemical, mechanical, and NDT (non-destructive testing) requirements compared to PSL1.

Q2: Is API 5L pipe suitable for sour service?
A: Yes, but you need PSL2 grade and additional testing. We offer HIC and SSC-resistant materials.

Q3: Do you offer coating services for API 5L pipes?
A: Yes. We can provide 3PE, FBE, varnish, or galvanized coatings.

Q4: What’s the difference between API 5L and ASTM A106?
A: API 5L is mainly used for line pipe (transporting oil/gas), while ASTM A106 is used for high-temperature pressure systems like boilers and refineries.