API 5L Grade B X42 X46 X52 X60 X65 X70 X80 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 local branches offer assistance in Spanish; process your customs clearance and ensure a smooth process of importation.
Reliable Stock Availability:With adequate stock available, we can meet your requirements without any delays.
Secure packaging:Pipes are tightly wrapped in several layers of bubble packs and sealed airtight to protect the pipes from deformation and damage, assuring the integrity of the product during transit.
Fast & Effective Delivery:To anywhere in the world to meet your project deadlines.
Packing and Transportation
Packaging:
Packaging Specifications: IPPC fumigated wooden pallets (compliant with Central American quarantine requirements) + 3-layer waterproof membrane (protect against rainforest moisture) + plastic protective caps on pipe openings (to prevent debris from entering), single bundle weight 2-3 tons (suitable for small cranes on Central American construction sites).
Customization: Standard 12m (suitable for containers), 8m/10m short-length versions available (suitable for inland mountainous road transport restrictions in Guatemala, Honduras, etc.).
All-inclusive: Free provision of Spanish version of Certificate of Origin (Form B), MTC material certificate, SGS test report, packing list, and commercial invoice; commitment to "reissue any incorrect documents within 24 hours".
Transportation:
For transit times of “China → Colon Port, Panama (30 days), Manzanillo Port, Mexico (28 days), Limon Port, Costa Rica (35 days),” we provide information on short-distance delivery partners (such as TMM, a local logistics company in Panama) for “port to oil field/construction site”.
FAQ
1. Do your API 5L steel pipes meet the latest standards for the Americas market?
Yes, our API 5L steel pipes fully comply with the latest API 5L 45th Revision, which is the only version recognized by regulatory authorities in the Americas (including the US, Canada, and Latin America). They also meet ASME B36.10M for dimensional standards and are compatible with local specifications such as Mexico’s NOM and Panama’s free trade zone requirements. All certifications (API, NACE MR0175, ISO 9001) are verifiable on official websites.
2.How do I choose the appropriate API 5L steel grade (e.g., X52 vs X65) for my project?
The selection depends on your project’s pressure, medium, and environment:
For low-pressure applications (≤3MPa) like municipal gas or agricultural irrigation, Grade B or X42 is cost-effective.
For medium-pressure oil/gas transmission (3–7MPa) in onshore fields (e.g., Texas shale), X52 is the most versatile choice.
For high-pressure pipelines (≥7MPa) or offshore projects (e.g., Brazil’s deepwater fields), X65/X70/X80 are recommended for their higher yield strength (448–552MPa).
Our technical team can provide a free grade recommendation based on your project details.
Address
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Phone
+86 13652091506









