API 5L Grade B X52 Seamless Steel Pipe
Product Detail
| Grades | API 5L Grade B, X42, X52, X56, X60, X65, X70, X80API 5L Grade B, X42, X52, X56, X60, X65, X70, X80 |
| Specification Level | PSL1, PSL2 |
| Outer Diameter Range | 1/2” to 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16 inches, 18 inches, 20 inches, 24 inches up to 40 inches. |
| Thickness Schedule | SCH 10. SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, to SCH 160 |
| Manufacturing Types | Seamless (Hot Rolled and Cold Rolled), Welded ERW (Electric resistance welded), SAW (Submerged Arc Welded) in LSAW, DSAW, SSAW, HSAW |
| Ends Type | Beveled ends, Plain ends |
| Length Range | SRL (Single Random Length), DRL (Double Random Length), 20 FT (6 meters), 40FT (12 meters) or, customized |
| Protection Caps | plastic or iron |
| Surface Treatment | Natural, Varnished, Black Painting, FBE, 3PE (3LPE), 3PP, CWC (Concrete Weight Coated) CRA Clad or Lined |
Surface Display
Black Painting
FBE
3PE (3LPE)
3PP
Size Chart
| Outside Diameter (OD) | Wall Thickness (WT) | Nominal Pipe Size (NPS) | Length | Steel Grade Available | Type |
| 21.3 mm (0.84 in) | 2.77 – 3.73 mm | ½″ | 5.8 m / 6 m / 12 m | Grade B – X56 | Seamless / ERW |
| 33.4 mm (1.315 in) | 2.77 – 4.55 mm | 1″ | 5.8 m / 6 m / 12 m | Grade B – X56 | Seamless / ERW |
| 60.3 mm (2.375 in) | 3.91 – 7.11 mm | 2″ | 5.8 m / 6 m / 12 m | Grade B – X60 | Seamless / ERW |
| 88.9 mm (3.5 in) | 4.78 – 9.27 mm | 3″ | 5.8 m / 6 m / 12 m | Grade B – X60 | Seamless / ERW |
| 114.3 mm (4.5 in) | 5.21 – 11.13 mm | 4″ | 6 m / 12 m / 18 m | Grade B – X65 | Seamless / ERW / SAW |
| 168.3 mm (6.625 in) | 5.56 – 14.27 mm | 6″ | 6 m / 12 m / 18 m | Grade B – X70 | Seamless / ERW / SAW |
| 219.1 mm (8.625 in) | 6.35 – 15.09 mm | 8″ | 6 m / 12 m / 18 m | X42 – X70 | ERW / SAW |
| 273.1 mm (10.75 in) | 6.35 – 19.05 mm | 10″ | 6 m / 12 m / 18 m | X42 – X70 | SAW |
| 323.9 mm (12.75 in) | 6.35 – 19.05 mm | 12″ | 6 m / 12 m / 18 m | X52 – X80 | SAW |
| 406.4 mm (16 in) | 7.92 – 22.23 mm | 16″ | 6 m / 12 m / 18 m | X56 – X80 | SAW |
| 508.0 mm (20 in) | 7.92 – 25.4 mm | 20″ | 6 m / 12 m / 18 m | X60 – X80 | SAW |
| 610.0 mm (24 in) | 9.53 – 25.4 mm | 24″ | 6 m / 12 m / 18 m | X60 – X80 | SAW |
PRODUCT LEVEL
PSL 1 (Product Specification Level 1): A general standard quality level for pipelines.
PSL 2 (Product Specification Level 2): More stringent specification with higher mechanical properties, chemical control and NDT.
PERFORMANCE AND APPLICATION
| API 5L Grade | Key Mechanical Properties (Yield Strength) | Applicable Scenarios in the Americas |
| Grade B | ≥245 MPa | Low-pressure gas pipelines in North America, small oilfield gathering in Central America |
| X42/X46 | >290/317 MPa | Agricultural irrigation in the U.S. Midwest, municipal energy networks in South America |
| X52 (Main) | >359 MPa | Shale oil pipelines in Texas, onshore oil & gas gathering in Brazil, cross-border gas transmission in Panama |
| X60/X65 | >414/448 MPa | Oil sands transportation in Canada, medium-to-high pressure pipelines in the Gulf of Mexico |
| X70/X80 | >483/552 MPa | Long-distance oil pipelines in the U.S., deepwater oil & gas platforms in Brazil |
Technological Process
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Raw Material Inspection – Select and inspect high-quality steel billets or coils.
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Forming – Roll or pierce the material into pipe shape (Seamless / ERW / SAW).
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Welding – Join pipe edges by electric resistance or submerged arc welding.
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Heat Treatment – Improve strength and toughness through controlled heating.
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Sizing & Straightening – Adjust pipe diameter and ensure dimensional accuracy.
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Non-Destructive Testing (NDT) – Check for internal and surface defects.
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Hydrostatic Test – Test each pipe for pressure resistance and leaks.
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Surface Coating – Apply anti-corrosion coating (Black varnish, FBE, 3LPE, etc.).
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Marking & Inspection – Mark specifications and perform final quality checks.
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Packaging & Delivery – Bundle, cap, and ship with Mill Test Certificates.
Our Advantages
Local Branch & Spanish Support:
Our regional branches provide full assistance in Spanish, handling customs clearance and ensuring a seamless import process from start to finish.
Reliable Stock Availability:
With ample inventory on hand, we are fully equipped to meet your project requirements promptly and without delays.
Secure Packaging:
Each pipe is carefully wrapped in multiple layers of protective bubble film and sealed airtight to prevent deformation or damage, maintaining product integrity throughout transportation.
Fast & Efficient Delivery:
We ensure timely and dependable delivery to any destination worldwide, helping you meet tight project schedules with confidence.
Packing and Transportation
Packaging:
Packing Details:
IPPC-fumigated wooden pallets with 3-ply waterproofing membrane and plastic end caps protect well from dust and moisture. Each load (2-3 t) is adapted to small cranes used on building sites in Central America.
Customization:
Standard 12m lengths are suitable for container transport, 8m and 10m lengths are suitable for inland routes in mountainous regions such as Guatemala and Honduras.
Documentation:
It contains the Spanish Certificate of Origin (Form B), the MTC material certificate, the SGS report, the packing list and the invoice → 24-hour doc fix guarantee.
Transportation:
Transit times: China–Panama (30 days), China–Mexico (28 days), China–Costa Rica (35 days). Local partners like TMM in Panama ensure smooth port-to-site delivery.
FAQ
1. Are your API 5L line pipe products compliant with the latest standards from Americas?
Yes, our API 5L line pipe are in full accordance with the latest API 5L 45th Revision, which is the single version for the whole of the Americas (U.S., Canada and Latin America). Our products also comply with ASME B36.10M for dimensions and other local specs like Mexico’s NOM, Panama’s Free Trade Zone regulation etc. All certificates (API, NACE MR0175, ISO 9001) are online verifiable.
2.How to choose the right API 5L grade (X52 vs X65)?
Choose according to working pressure and application:
Grade B / X42: Low pressure gas,water and irrigation systems (≤3 MPa).
X52 : Medium pressure (3–7 MPa) oil & gas pipelines – most versatile.
X65 / X70 / X80: High pressure (≥7 MPa) or offshore projects - higher yield (448–552 MPa).
Our engineers can recommend the the best grade for your application - at no cost to you.
Address
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Phone
+86 13652091506
