Carbon Steel Line Pipe

Carbon Steel Line Pipes have superior strength and machinability, and can withstand greater pressure and weight. Carbon steel pipes have good corrosion resistance and can be used in a variety of corrosive environments.

Product Parameters

Carbon Steel Line Pipe meets the following criteria:

Steel gradeMass Fraction,Based on Heat and Product Analyses % maxCarbon Equivalent
CSiMnPSVNbTiotherCEⅡWCepcm
L245R or BR0.240.41.20.0250.015cc0.04e,l0.430.25
L290R or X42R0.240.41.20.0250.0150.060.050.04e,l0.430.25
L245N or BN0.240.41.20.0250.015cc0.04e,l0.430.25
L290N or X42N0.240.41.20.0250.0150.060.050.04e,l0.430.25
L320N or X46N0.240.41.40.0250.0150.070.050.04d,e,l0.430.25
L360N or X52N0.240.451.40.0250.0150.10.050.04d,e,l0.430.25
L390N or X56N0.240.451.40.0250.0150.10.050.04d,e,l0.430.25
L415N or X60N0.240.451.40.0250.0150.10.050.04g,h,lAs agreed
L245Q or BQ0.180.451.40.0250.0150.050.050.04e,l0.430.25
L290Q or X42Q0.180.451.40.0250.0150.050.050.04e,l0.430.25
L320Q or X46Q0.180.451.40.0250.0150.050.050.04e,l0.430.25
L360Q or X52Q0.180.451.50.0250.0150.050.050.04e,l0.430.25
L390Q or X56Q0.180.451.50.0250.0150.070.050.04d,e,l0.430.25
L415Q or X60Q0.180.451.70.0250.015gggh,l0.430.25
L450Q or X65Q0.180.451.70.0250.015gggh,l0.430.25
L485Q or X70Q0.180.451.80.0250.015gggh,l0.430.25
L555Q or X80Q0.180.451.90.0250.015gggI,jAs agreed

Our pipelines are carefully designed to transport vital materials across vast terrain, making them the first choice for transporting oil, gas, oil and water.


Our pipes are made of high-strength carbon steel and strictly adhere to respected standards such as API SPEC 5L, ISO 3183 and GB/T 9711, a testament to durability and resilience.


With the ability to withstand high pressure, when you choose UNIASEN's pipeline, you are not just choosing a product; You're investing in reliability, longevity and unmatched performance.

Application field of Carbon Steel Line Pipe

  • Oil and gas industry: Carbon steel pipe is an important pipeline material for transporting oil and gas, with high strength, reliability and corrosion resistance.

  • Building and Structural engineering: Carbon steel pipes are used in building and structural engineering such as Bridges, tall buildings, roads and tunnels to provide structural support.

  • Chemical industry: Carbon steel pipes are used in chemical equipment, pipes and containers, such as fertilizer plants, refineries, etc., with good corrosion resistance and wear resistance.

  • Power industry: Carbon steel pipes are used in power facilities such as boilers, heat exchangers and piping systems.

  • Machinery manufacturing: Carbon steel tubes are used in the manufacture of machinery and equipment, automotive parts and construction machinery.

Pipe anticorrosive coating thickness requirements

Nominal DiameterEpoxy Coating/μmAdhesive Coating/μmMin. Thickness of PE Coating
Common (mm)Enhanced (mm)
DN≤100≥120≥1701.82.5
100＜DN≤25022.7
250＜DN≤5002.22.9
500＜DN≤8502.53.2
DN≥80033.7

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FAQ

Q: Are You Manufacture or Trade Company?
A: We are the professional manufacturer of steel products located in Shandong province, China. Welcome to contact us and visit our factory before you place orders.
Q: How do you guarantee the quality?
A: We can send free samples to you, we can accept third-party testing.
We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.
Q: Can I get free samples?
A: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.
Q: What is the MOQ? 
A: If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.
Q: Can you OEM or ODM?
A: Yes, we have a strong developing team. The products can be made according to your request

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