API 5L X52 Line Pipe Specifications

Author : admin

Update time : 2025-11-20 09:02:28

　　API 5L pipelines are widely used for transporting oil, natural gas, water, and for the natural gas industry. API 5L refers to the American Petroleum Institute's standard, which is prepared and issued worldwide.Oil, crude oil, natural gas, water, or natural gas is transported underground through API 5L pipelines to oil and gas companies for further processing. Oil and gas pipelines include seamles pipes and welded pipes, and have three types of ends: plain, threaded, and socketed. The main steel grades are B, X42, X46, X52, X56, X65, and X70.

　　Overview of API 5L Standard

　　The API 5L standard was first published in 1926, initially including only three steel grades: A25, A, and B. With the development of industrial needs, API released the API 5L standard in 1947, adding three higher-level steel grades: X42, X46, and X52.

　　After dozens of revisions, the latest API SPEC 5L, version 46 (released in 2018), has made significant updates to version 45, including requirements for welded joints, an expanded scope of non-destructive testing, and the addition of requirements for longitudinal plastic strain capacity.

　　This standard is harmonized with the ISO 3183 international standard, achieving global standard consistency.

　　API 5L X52 Line Pipe Specifications

　　Standards: API 5L, ISO 3183

　　Ratings: X1 or L2 (N, Q, M, R) in PSL52 and PSL390

　　Seamless Outer Diameter: 21.3mm – 660mm, 1/2” – 26”

　　ERW and HFW Piping: 1/2” – 24”

　　LSAW and SSAW: 16” – 100”

　　Wall Thickness Tables: SCH 40, SCH STD, SCH80, SCH XS, SCH 160, SCH XXS, etc.

　　Lengths: DRL, SRL, 20FT, 40FT

　　Ends: Plain, Angled, Threaded

　　Available Coatings: Black Paint, Varnish, FBE, 3PE, 3LPE, 3PP, CRA Coating and Lining

Api 5l Grade X52 Lsaw Pipe Standard	API 5L X52 (Specification for Line Pipe - ANSI/API specification 5L - 44th Edition, October 1, 2007)
Api 5l X52 Steel Pipe End	Plain, Bevel, Screwed, Threaded
Packing	API 5L X52 GR. B Pipe Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Testing and Inspection Reports	EN 10204 3.1, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, Destructive Test Report, Non Destructive Test Reports, Mill TC EN 10204 3.1, NABL Approved Lab, Chemical and Mechanical Reports, India Boiler Regulations (IBR) Test Certificate
Api 5l X52 Material Sizes	Nominal Pipe Size 1/2" to 48 " O.D.
Api 5l X52 Material Sizes	Wall Thickness - Schedule 10 through 160, STD, XS, XXS.
Application & uses	Suitable for Conveying gas, water, oil, and other liquefied media.
API 5L X52 Pipes Type	Seamless / ERW / Welded / Fabricated / CDW
Thickness	SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
API 5L X52 Line Pipe Length	Single Random, Double Random & Required Length, Custom Size - 12 Meter lengths
Api 5l X52 Psl2 Pipe Finishes	Bare, Oiled, Mill Varnish, Galv, FBE, FBE Dual, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap.End Finishes:Beveled, Square Cut, Threaded & Coupled.
Product Specification Level (PSL)	API 5L X52 PSL 2
Product Specification Level (PSL)	API 5L X52 PSL 1
Api 5l X52 S355 Pipe Applications	Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes
Specialist In	Api 5l X52 Pipe Suppliers, Api 5l X52 Erw Pipe , Api 5l X52 Seamless Pipe Suppliers, Api 5l X52 Psl2
Api 5l X52 Welded Pipe Value added service	Fusion Bond Epoxy
	Galvanizing
	Sand Blasting
	Tar Epoxy
	Bending
	3LPE
	Heat Treatment
	Machining
	Draw & Expansion as per required Size & Length etc.
	Annealed
	ARO
Api 5l Grade X52 Carbon Steel Pipe Origin	Indian Origin, Japanese Origin, Korean Origin, European Origin, US Origin, Ukraine Origin, Russian Origin
BS EN 10208-2:2009	API 5L X52 pipelines for combustible flu

API 5L standard specifies two product specification levels: PSL1 and PSL2. PSL2 has stricter mandatory requirements for carbon equivalent, notch toughness, maximum yield strength, and tensile strength, making it suitable for more demanding applications.Please feel free to contact us with any questions: pipe@stpipefitting.cn.

Previous : How to Choose Carbon Steel Pipe Size?

Next : Difference between Sch40 and Sch40s pressure ratings

Working Pressure of Seamless Steel Pipe

Sep .17.2026

　　Seamless steel pipe actual bearing pressure may be affected by many factors such as the quality of the pipe, processing technology, and use environment Please feel free to contact us if you have any questions Email : pipe@stpipefitting.cn
(SMLS pipe) is a type of pipe produced without welds by deforming the metal as a whole using piercing and rolling techniques. Compared to welded steel pipe, its core advantage stems from the continuity of the material and the uniformity of its structure, providing superior reliability and safety under high pressure, high temperature, and complex stress environments. This makes seamless steel pipe a fundamental and reliable material in the petroleum, chemical, natural gas, and power industries for critical processes and the transportation of hazardous media.

Seamless carbon steel pipe Sch 40

Sep .15.2026

Seamless Carbon Steel Pipe Sch 40 (Schedule 40) is a seamless steel pipe specification that meets the American standard. Its pipe wall thickness is Sch40 (corresponding to the standard wall thickness series), which represents the standard wall thickness under a specific pressure level and is often used in occasions with higher pressure and temperature.

Schedule 80 Carbon Steel Pipe: Thickness, Dimensions & Weight in mm

Sep .10.2026

Schedule 80 Carbon Steel Pipe is made up of carbon steel materials. The carbon steels can vary in composition based on the grades. The strengths and the toughness vary. To have an international and equal identification of the pressure capacities of the pipes, the schedule scale is used. The wall thickness grades of the steel pipe range from Schedule (SCH) 5 to Schedule (SCH) 160. SCH 5 has the lowest pressure resistance, while SCH 160 has the highest.

Steel Pipe Sizes Explained: NPS, OD and Wall Thickness

Sep .08.2026

Steel pipe sizing can be confusing, especially for buyers who are new to piping specifications. A pipe's designated size often differs from its actual dimensions, which can lead to mistakes during purchasing or design.

Have Any Questions?

DON'T HESITATE TO CONTACT US ANY TIME.