API 5L Grade X52 pipes have superior mechanical strength with a minimum yield strength of about 360 MPA. These grade line pipes are superior to API 5L Grade B, API 5L Grade X42 and API 5L Grade X46 pipe concerning chemical and mechanical properties. Api 5l x52 Line Pipe are the most widely used pipes in the industry as they have high resistance to corrosion making them suited for sour services.
Standard: API 5L, ISO 3183
Grade: X52 or L390 (N, Q, M, R) in PSL1 and PSL2
Seamless OD: 21.3mm – 660mm, 1/2" – 26"
ERW and HFW pipe: 1/2" – 24"
LSAW and SSAW: 16" – 100"
Wall Thickness Schedule: SCH 40, SCH STD, SCH80, SCH XS, SCH 160, SCH XXS etc
Length: DRL, SRL, 20FT, 40FT
Ends: Plain, Beveled Ends, Threaded Ends
Available Coating: Black Painting, Varnished, FBE, 3PE, 3LPE, 3PP, CRA clad and lined pipe
API 5L Grade X52 line pipes production special attention is given to toughness and Impact test especially for sour services and high pressure and temperature services. Sulphur stress corrosion is a common occurrence in sour wells. Usually the surface of the API 5l X52 schedule 40 Pipe is coated with anti-corrosion oil, varnish, black oil paint, etc. The layer formed thus creates an additional layer of corrosion resistance on the pipes.
This grade is also non-flammable which allows it to be used in sensitive projects like power generation via nuclear, thermal, geo thermal and hydro methods. Other applications for these pipes include flood control, textile industry, sugar industry, construction of buildings. It is used to convey gas, steam and fluids. There are two differentiation levels for these pipes PSL-1and PSL-2.PSL-1pipes don't require impact and non- destructive testing.
API 5L X52 PSL1 Line Pipe Chemical and Mechanical Properties
| Pipe Grade | Chemical Composition | API 5 line pipe Mechanical Properties | ||||
| C (Max) | Mn(Max) | P(Max) | S(Max) | Yield Strength | Tensile Strength | |
| MPa (psi) | MPa (psi) | |||||
| min | min | |||||
| Seamless Pipe | ||||||
| L245 or B | 0.28 | 1.2 | 0.03 | 0.03 | 245 (35.500) | 415 (60.200) |
| L290 or X42 | 0.28 | 1.3 | 0.03 | 0.03 | 290 (42.100) | 415 (60.200) |
| L320 or X46 | 0.28 | 1.4 | 0.03 | 0.03 | 320 (46.400) | 435 (63.100) |
| L360 or X52 | 0.28 | 1.4 | 0.03 | 0.03 | 360 (52.200) | 460 (66.700) |
| L390 or X56 | 0.28 | 1.4 | 0.03 | 0.03 | 390 (56.600) | 490 (71.100) |
| L415 or X60 | 0.28 | 1.40 e | 0.03 | 0.03 | 415 (60.200) | 520 (75.400) |
| L450 or X65 | 0.28 | 1.40 e | 0.03 | 0.03 | 450 (65.300) | 535 (77.600) |
| L485 or X70 | 0.28 | 1.40 e | 0.03 | 0.03 | 485 (70.300) | 570 (82.700) |
| Welded Pipe | ||||||
| L245 or B | 0.26 | 1.2 | 0.03 | 0.03 | 245 (35.500) | 415 (60.200) |
| L290 or X42 | 0.26 | 1.3 | 0.03 | 0.03 | 290 (42.100) | 415 (60.200) |
| L320 or X46 | 0.26 | 1.4 | 0.03 | 0.03 | 320 (46.400) | 435 (63.100) |
| L360 or X52 | 0.26 | 1.4 | 0.03 | 0.03 | 360 (52.200) | 460 (66.700) |
| L390 or X56 | 0.26 | 1.4 | 0.03 | 0.03 | 390 (56.600) | 490 (71.100) |
| L415 or X60 | 0.26 | 1.4 | 0.03 | 0.03 | 415 (60.200) | 520 (75.400) |
| L450 or X65 | 0.26 | 1.45 | 0.03 | 0.03 | 450 (65.300) | 535 (77.600) |
| L485 or X70 | 0.26 | 1.65 | 0.03 | 0.03 | 485 (70.300) | 570 (82.700) |
API 5L X52 PSL1 Line Pipe also called L360 Pipe, X52 (L360) named by minimum yield strength 52 Ksi (360 Mpa). It's a medium grade in API 5L and ISO 3183 specifications, used for oil and gas pipeline transmissions.
API 5L X52 Pipe Types
Ranges by Product Specification Level: PSL1, PSL2, Sour Services
API 5L X52 PSL1, for the pipes in common delivery condition of As Rolled.
API 5L X52N/M/Q, for PSL2 pipe with delivery condition of N, M, and Q.
API 5L X52NS/MS/QS, for PSL2 pipes with sour services.
Suffix Letter Means
R: As rolled
N: Normalizing rolled, Normalized formed, Normalized
Q: Tempered and quenched
M: Thermomechanical rolled or thermomechanical formed
S: Sour Service
Ranges by Manufacturing Types
Seamless: Includes hot rolled seamless and cold drawn seamless.
ERW: Electric Resistance Welded, OD up to 24 inch.
DSAW/SAW: Double Sub-merged Arck Welding, substitute welding methods than ERW for larger diameter welded pipes.
LSAW: Longitudinal Sub-merged Arc Welding, also called JCOE pipe, OD up to 56 inch.
SSAW / HSAW: Spiral Sub-merged Arc Welding, or Helical SAW, OD up to 100 inch.
API 5L Grade X52 Pipe Specification
API 5L Pipe Data Sheet, other grades specifications in API 5L.
API 5L X52 Pipe Data Sheet, including PSL1, PSL2, and Sour Services.
The line pipe surface receives specialized coatings including anti-corrosion oil, varnish or black paint, forming an additional protective layer that significantly enhances resistance to corrosive elements.
Specifically engineered for demanding applications, API 5L X52 line pipes undergo rigorous impact testing to ensure superior toughness in sour service and high-pressure/high-temperature environments, effectively resisting sulfur stress corrosion.
Available in two qualification levels: PSL-1 (standard applications) and PSL-2 (enhanced requirements including mandatory impact testing and non-destructive examination).
This grade's inherent non-flammability makes API 5L X52 line pipes ideally suited for sensitive power generation projects including nuclear, thermal, geothermal and hydro power facilities.
The API 5L X52 PSL1 Line Pipes are widely utilized in flood control systems, textile and sugar processing industries, building construction, and for safe transportation of gases, steam and various fluids.
1. Customized Technical Solutions
We offer comprehensive customization including OD, WT, and length adjustments, supplemented with specialized end finishing and anti-corrosion coatings. This technical flexibility makes our line pipe ideal for various project specifications.
2. Rigorous Quality Assurance
Implementing strict quality control from material selection to final inspection, each API 5L X52 pipe undergoes multiple NDT tests and hydrostatic testing, guaranteeing consistent compliance with industry standards and project requirements.
3. Professional Technical Support
Our engineering team provides end-to-end technical services, from product selection to installation guidance, ensuring optimal performance of every API 5L pipe in your operations.
4. Proven Product Excellence
Our X52 line pipe strictly complies with API 5L pipe standards, delivering superior strength and pressure capacity while maintaining excellent toughness in low-temperature environments. The enhanced corrosion resistance ensures reliable performance even in demanding service conditions.
5. Optimized Cost Efficiency
Through vertical integration and streamlined supply chain management, we maintain competitive pricing while ensuring product quality, providing clients with superior value line pipe solutions.
API 5L X52 PSL1 Line Pipe Applications
This versatile line pipe delivers reliable performance across multiple sectors. The X52 line pipe is particularly suitable for oil and gas gathering systems and medium-pressure transmission projects where sour service resistance is not required.
As a standard API 5L line pipe, it provides cost-effective solutions for water infrastructure, including irrigation and flood control systems. The API 5L X52 PSL1 Line Pipe's structural capabilities make it ideal for piling foundations and architectural supports in construction projects.
Additionally, this X52 line pipe serves effectively in industrial utility networks for conveying compressed air, steam, and various process fluids. The API 5L line pipe specification ensures consistent performance in municipal applications such as drainage systems and urban infrastructure development, making it a practical choice for standard duty applications.
Please share information as below if you request for quote
| Title | API 5L Line Pipe |
| Qty | Pcs/Mtrs/Tons |
| Size | NPS (Outside Diameter) and Schedule No. (Wall Thickness) and Length |
| PSL Level | PSL 1 or PSL 2 |
| Grade | Grade A, Grade B, X42, X46, X52, X60, X70, X80, etc |
| Manufacturing process | Seamless or Welded |
| Surface finish | Bare, Black |
| Ends finish | Plain Ends, Beveled Ends, Threaded Ends |
| Marking | If different from the API 5L Specification |
| Protective Coatings & Linings | 3LPE, 3LPP, FBE, Akzo Nobel, Epoxy Zinc-rich Primer, Liquid Epoxy Resin, etc |
| Manufacturer | Approved Manufacturer List (AML), or Country of Origin restrictions |
| Sour service | Yes / No |
Hainan Yuan Steel Pipe Supply Chain Co.,Ltd is one of the leading API 5L X52 PSL1 Line Pipe distributors.
If you want to buy or import best high-quality API 5L X52 PSL1 Line Pipe, please kindly feel free to contact us.
