Welded Pipe Api 5l

Out diameter usually from 323mm to 1420mm. When the outer diameter is above 914.4mm it's allowed two straight welded seams.

Usage: Long distance transportation for oil, gas, liquid, coal gas, etc. inshore and offshore, also used as construction pipes, offshore platform, power station, petrochemical and civil construction, etc.

Outer Diameter: 219mm-1820mm (8'' ~70'')

Wall Thickness: 5.0mm-50mm

Length: 5.8mtr-18mtr

End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled,

Surface: Lightly oiled, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings

MATERIAL: CS, LTCS Q235, Q345, ASTM A25, API 5L GR.B, X42, X46, X52, X60, X70, etc.

STANDARD: API 5L, ASTM A252, ASTM A672, ISO3183, GB/T3091, GB/T9711, etc.

【Product Features】

High Strength
The yield strength of welded pipe API 5L can reach 359-555 MPa, and the tensile strength can reach up to 758 MPa. Compared with ordinary welded pipes, it can withstand greater external pressure and tension, and is not easy to deform and break in high-pressure transportation scenarios.

Corrosion Resistance
Welded pipe API 5L is treated with external anti-corrosion coating (such as three-layer polyethylene PE coating, epoxy powder coating) to effectively prevent acidic gas, moisture and corrosive media in the soil from corroding the pipe body. Compared with untreated or single-coated ordinary steel pipes, the average service life of API 5L welded pipes can be extended by more than 30%.

【Product Application】

Long-distance Oil And Gas Pipelines
In the field of long-distance oil and gas pipelines, welded pipe api 5l is mainly used to build a transportation network from oil and gas fields to refineries and urban gas supply points.

Offshore Oil And Gas Production Platform Field
In offshore oil and gas production platforms, welded pipe api 5l is responsible for building the platform structure frame and transmission pipelines.

Pipeline System Field Of The Chemical Industry
In the pipeline system of the chemical industry, welded pipe api 5l is used to transport various corrosive, flammable and explosive chemical raw materials and products.

Urban Gas Transmission Network Field
In the urban gas transmission network, welded pipe api 5l is the main transmission pipeline, responsible for transporting natural gas from the gate station to thousands of households.

Industrial Fluid Transportation System Field
In the industrial fluid transportation system, welded pipe api 5l can transport a variety of fluids such as water, steam, and industrial wastewater.

【Frequently Asked Questions】

What is welded pipe api 5l?
Welded pipe api 5l is a welded steel pipe produced according to the 5L standard formulated by the American Petroleum Institute (API). It is used to transport fluids such as oil and natural gas and is widely used in the energy industry.

What is the manufacturing process of welded pipe api 5l?
Usually, the carbon steel sheet is cold-formed into a cylindrical shape, and then longitudinally welded by resistance welding or other welding methods to form a pipe body. After that, the quality is ensured by processes such as heat treatment, inspection and water pressure testing.

What is the difference between welded pipe api 5l and seamless pipe?
Welded pipe api 5l is welded by plate, and the cost is relatively low; seamless pipe is integrally perforated and rolled, and has better performance in high-pressure and highly corrosive environments, but the price is higher.

What are the applications of welded pipe api 5l in the oil industry?
Welded pipe api 5l can be used for crude oil gathering and transportation pipelines, internal process pipelines of refineries, oil and gas pipelines of offshore oil production platforms, etc., and is a key component in oil production and transportation.

What are the anti-corrosion measures for welded pipe api 5l?
Welded pipe api 5l can be anti-corrosive with coatings, such as epoxy coatings and polyethylene coatings; cathodic protection can also be performed to prevent metal corrosion and extend the service life of the pipeline.

What are the requirements for the transportation and storage of welded pipe api 5l?
When transporting welded pipe api 5l, avoid collisions and scratches. Store it in a dry and ventilated place, away from corrosive substances, to prevent damage and corrosion to the pipeline.

What are the connection methods for welded pipe api 5l?
Common connection methods for welded pipe api 5l include welding, coupling connection, socket connection, etc.

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