API 5L line pipe for oil and gas line pipe

Short Description:

Pipe line pipes are mainly used for pipelines that transport oil and natural gas. It is mainly used in oil, natural gas, chemical, electric power equipment and other industries.  Future Metal as a professional carbon steel tube manufacturer, has its own factory, has a large number of seamless pipes in stock, and factory direct sales prices, saving you even more costs, contact us to get the most discounted price !

Product Detail

Product Tags

Gas pipelines can be divided into three types: gas gathering pipelines, gas pipelines, and gas distribution pipelines according to their uses.

①Gas gathering pipeline: the pipeline from the wellhead of the gas field through the gathering station to the gas treatment plant or the starting gas compressor station, which is mainly used to collect untreated natural gas extracted from the stratum. Due to the high pressure of the gas well, the pressure of the gas gathering pipeline is generally above 100 kgf/cm2, and the pipe diameter is 50 to 150 mm.

②Gas pipelines: pipelines from gas processing plants or starting gas compressor stations of gas sources to gas distribution centers, large users or gas storages in major cities, as well as pipelines that communicate with each other between gas sources. After processing, the pipeline is in line with pipeline transportation. Quality standard natural gas (see pipeline gas transmission technology) is the main part of the entire gas transmission system. The diameter of the gas pipeline is larger than that of the gas gathering pipeline and the gas distribution pipeline. The largest gas pipeline has a diameter of 1420 mm. The natural gas is transported under pressure from the starting point compressor station and the compressor stations along the line. The gas transmission pressure is 70-80 kgf/cm2, and the total length of the pipeline can reach thousands of kilometers.

③Gas distribution pipeline: the pipeline from the urban pressure regulating and metering station to the user branch line has low pressure, multiple branches, dense pipe network, and small pipe diameter. In addition to the large number of steel pipes, low-pressure gas distribution pipes can also be made of plastic pipes or other materials. .

X-60 low-alloy steel (strength limit of 42 kgf/cm2) is widely used for pipes, and higher-strength materials such as X-65 and X-70 have begun to be used. In order to reduce the frictional resistance in the pipeline, new steel pipes over 426 mm have generally been coated with internal coatings.

Gases of different physical properties are transported sequentially in the same pipeline, and gaseous and liquid natural gas pipeline transport tests at -70°C and 77 kgf/cm2 high pressure. The natural gas pipeline transportation system consists of two parts: pipeline gas transmission station and line system. The line system includes pipelines, valve rooms along the route, crossing buildings (see pipeline crossing project and pipeline crossing project), cathodic protection station (see pipeline anticorrosion), pipeline communication system, dispatching and automatic monitoring system (see pipeline monitoring), etc.

Steel pipe is the main material of pipeline. Natural gas transmission steel pipe is a special metallurgical product formed by deep processing of plate (belt). Due to differences in process technology, the organization of pipeline steel has certain differences in pipeline steel produced by various manufacturers. With the continuous development of pipeline steel research, Canada and other countries have laid test sections of X100 and X120 pipeline steel. In the Jining tie-line pipeline project in China, X80-grade pipeline steel was used for the 7.71km test section for the first time. The 4,843km-long West-East Gas Pipeline of the second-line trunk line uses X80 steel grade pipe steel with a diameter of 1219mm, which increases the gas transmission pressure to 12Mpa. Generally speaking, X80 steel is a dual-phase structure of ferrite and bainite, X100 pipe steel is a bainite structure, and X120 pipe steel is ultra-low carbon bainite and martensite.

For natural gas pipelines, strength, toughness and weldability are the three most basic quality control indicators [6].

Product specifications

Out Diameter 1/4 inch-36 inch
Wall Thickness 1.25 mm-50 mm
Length 3.0m-18m
Surface treatment oil dipping, shot blasting, painting, etc.
Delivery status annealed, normalized, normalized + tempered and other heat treatment states


API Spec 5L- American Standard

GB/T9711-1999- National Standard

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Professional Steel Pipe Manufacturer Wholesale Price

  Our factory has more than 30 years of production and export experience, exporting to more than 50 countries and regions, such as the United States, Canada, Brazil, Chile, the Netherlands, Tunisia, Kenya, Turkey, the United Arab Emirates, Vietnam and other countries. With a fixed production capacity value every month, it can meet the large-scale production orders of customersNow there are hundreds of customers with fixed large-scale annual orders. If you want to buy low carbon steel pipe, high carbon steel tube ,rectangular pipe, carton steel rectangular pipe,square tube, alloy steel pipe, seamless steel pipe, carbon steel seamless tube,steel coils, steel sheets ,precision steel tube,and other steel products, contact us to provide you with The most professional service, save your time and cost !

    Our factory also sincerely invites regional agents in various countries. There are more than 60 exclusive steel plate, steel coil and steel pipe agents. If you are a foreign trading company and are looking for the top suppliers of steel plates, steel pipes and steel coils in China, please contact us. To provide you with the most professional and high-quality products in China to make your business better and better !

   Our factory has the most complete steel product production line and the strictest product testing process to ensure a 100% product pass rate; the most complete logistics delivery system, with its own freight forwarder, saves you more transportation costs and guarantees 100% of the goods. perfect packaging and arrival. If you are looking for the best quality steel sheet, steel coil, steel pipe manufacturer in China, and want to save more logistics freight, please contact us, our professional multilingual sales team and logistics transportation team will provide you with the best Steel product service to ensure you receive a 100% quality guaranteed product !

   Get the best quotation for steel tubes: you can send us your specific requirements and our multilingual sales team will provide you with the best quotation!  Let our cooperation start from this order and make your business more prosperous !

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