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Line Pipe

Line pipe is a pipe used to transport liquids, gases or solid particles, and is widely used in the fields of petroleum, natural gas, chemical industry, water conservancy, etc. The following is its definition and function.

What Is Line Pipe?

Line pipe is a steel pipe manufactured by welding or seamless process, usually in accordance with international or industry standards (such as API, ISO, etc.), used for long-distance transportation of oil, natural gas, water and other media.

Function Of Line Pipe

Transport medium:

  • Used to transport fluids such as crude oil, natural gas, refined oil, water, etc.

  • It can also transport special media such as slurry and chemicals.


Long-distance transportation:

  • Connect production areas and consumption areas to achieve efficient allocation of resources.


Pressure and corrosion resistance:

  • Able to withstand high pressure and harsh environment to ensure safe transportation.


Economic and efficient:

  • Provide low-cost and efficient transportation methods to reduce dependence on roads and railways.


Environmental protection and safety:

  • Reduce the risk of leakage and pollution during transportation.

Application Of Line Pipe

1. Oil and gas industry:

  • Crude oil transportation: transporting crude oil from oil fields to refineries or oil storage facilities.

  • Natural gas transportation: transporting natural gas from gas fields to urban gas networks or liquefied natural gas (LNG) facilities.

  • Product oil transportation: transporting gasoline, diesel and other finished oil to consumer markets.


2. Chemical industry:

  • Chemical transportation: transporting chemicals such as acids, alkalis, solvents.

  • Liquid gas transportation: transporting liquefied petroleum gas (LPG) or liquefied natural gas (LNG).


3. Water conservancy projects:

  • Tap water transportation: transporting water from water sources to urban water supply systems.

  • Sewage discharge: transporting industrial wastewater or domestic sewage to treatment facilities.

  • Irrigation system: used for agricultural irrigation, transporting irrigation water.


4. Mining and metallurgical industry:

  • Slurry transportation: transporting a mixture of ore and water (slurry) from mines to processing plants.

  • Tailings discharge: transporting tailings generated during mining to tailings ponds.


5. Energy and power industry:

  • Heat transmission: transport steam or hot water for heating or power generation.

  • Cooling water system: transport cooling water to power plants or other industrial facilities.


6. Marine engineering:

  • Submarine pipeline: used for the development of offshore oil and gas fields, transporting crude oil, natural gas or water.

  • Desalination: transport seawater to desalination facilities or discharge desalinated wastewater.


7. Urban infrastructure:

  • Gas pipeline: transport natural gas to residential areas or industrial users.

  • Heating pipeline: used for urban centralized heating systems.

Chemical Analysis Of Line Pipe

StandardType of pipeClassGradeCSiMnPSVNbTi
maxmaxmaxmaxmaxmaxmaxmax
API SPEC 5LSMLSPLS1L245 B L290 X42 L320 X46 L360 X52 L390 X56 L415 X60 L450 X65 L485 X70 L245N BN0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.240.41.20 1.30 1.40 1.40 1.40 1.40 1.40 1.40 1.200.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.0250.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.015——————0.04
PLS2L290N X42N0.240.41.20.0250.0150.060.050.04
L320N X46N0.240.41.40.0250.0150.070.050.04
L360N X52N0.240.451.40.0250.0150.10.050.04
L390N X56N0.240.451.40.0250.0150.10.050.04
L415N X60N0.240.451.40.0250.0150.10.050.04
WELDPLS1L245 B0.26-1.2-0.030.03--
L290 X420.26-1.3-0.030.03--
L320 X460.26-1.4-0.030.03--
L360 X520.26-1.4-0.030.03--
L390 X560.26-1.4-0.030.03--
L415 X600.26-1.4-0.030.03--
L450 X650.26-1.45-0.030.03--
L485 X700.26-1.65-0.030.03--
PLS2L245M BM0.220.451.20.0250.0150.050.050.04
L290M X42M0.220.451.30.0250.0150.050.050.04
L320M X46M0.220.451.30.0250.0150.050.050.04
L360M X52M0.220.451.40.0250.015---
L390M X56M0.220.451.40.0250.015---
L415M X60M0.120.451.60.0250.015---
L450M X65M0.120.451.60.0250.015---
L485M X70M0.120.451.70.0250.015---
L555M X80M0.120.451.850.0250.015--


Mechanical Properities Of Line Pipe

StandardClassGrade
Yield strength not less than (MPa)Tensile strength (MPa)Elongation(%)Y.S/T.S
API SPEC 5L ISO 3183PLS1L245Bmin245415b-
L290X42min290415b-
L320X46min320435b-
L360X52min360460b-
L390X56min390490b-
L415X60min415520b-
L450X60min450535b-
L485X70min485570b-
PLS2L245N BNmin245415b-
L245M BMmax450760b0.93
L290NX42Nmin290415b-
L290MX42Mmax495760b0.93
L320NX46Nmin320435b-
L320MX46Mmax525760b0.93
L360NX52Nmin360460b-
L360MX52Mmax530760b0.93
L390NX56Nmin390490b-
L390MX56Mmax545760b0.93
L415NX60Nmin415520b-
L415MX60Mmax565760b0.93
L450MX65Mmin450535b-
max600760b0.93
L485MX70Mmin485570b-
max635760b0.93
L555MX80Mmin555625b-
max705825b0.93


Get in Touch with Silver Valley
Silver Valley are here to help!
We specialize in the production of seamless steel pipes, boiler pipes, oil casing and pipe fittings,If you have any inquiry, please feel free to contact us.
Call
0317-5636199
Address
Lijiapu Industrial Zone, Cangzhou City, Hebei Province, China