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API 5L Grade B Seamless Steel Pipe (PSL1, PSL2)
| API 5L Steel Pipe Product Detail | |
| Grades | API 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, Welded ERW, SAW in LSAW, DSAW, SSAW, HSAW |
| Ends Type | Beveled ends, Plain ends |
| Length Range | SRL , DRL , 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 |
API 5L Grade B Steel Pipe 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 |
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PSL 1 (Product Specification Level 1) : Applicable to pipelines constructed to a standard baseline quality level.
PSL 2 (Product Specification Level 2) : Higher mechanical property, tighter chemical controls and NDT, more demanding specification.
| API 5L Grade | Key Mechanical Properties (Yield Strength) | Applicable Scenarios in the Americas |
| Grade B | ≥245 MPa | North American low pressure natural gas pipelines; Small oil field gathering pipelines in Central America |
| X42/X46 | >290/317 MPa | US Midwestern agricultural irrigation pipelines; South American urban energy grids |
| X52 (Main) | >359 MPa | Texas shale oil pipelines; Brazil onshore oil and gas gathering pipelines; Panama trans-boundary natural gas pipelines |
| X60/X65 | >414/448 MPa | Canadian oil sands pipelines; Gulf of Mexico intermediate- and high-pressure pipelines |
| X70/X80 | >483/552 MPa | US long-haul oil pipelines; Brazil deepwater oil and gas platforms |
Raw Material Inspection – Choose and inspect the good quality steel billets or coils.
Forming – Roll or pierce into pipe form (Seamless / ERW / SAW).
Welding –In-pipe joints are made by electric resistance welding or submerged arc welding.
Heat Treatment – Enhance strength and toughness by precise heating.
Sizing & Straightening – Modify the diameter of the tube and confirm the size is correct.
Non-Destructive Testing (NDT) – Inspect for inward and surface flaws.
Hydrostatic Test – Test each pipe for strength and leaks.
Surface Coating – Apply corrosion protection layer (black varnish, FBE, 3LPE, etc.).
Marking & Inspection – Mark the specifications and do the final quality inspections.
Packaging & Delivery – Pack, stack, and deliver with Mill Test Certificates.
Spanish-speaking Local Service Office: Our local subsidiary provides Spanish-speaking services, offering an excellent experience and ensuring the best possible import process.
Reliable Inventory: We maintain sufficient stock to promptly fulfill your order needs.
Safe Packaging: Pipes are tightly wrapped and sealed with multiple layers of bubble wrap to prevent deformation and damage during transportation, ensuring safety.
Fast and Efficient Delivery: International delivery to meet your project delivery requirements.
Packaging Details: IPPC-fumigated wooden pallets (standard packaging in Central America), three-layer waterproof membrane (for protection from the humid environment of the tropical rain forest), plastic protective caps on both ends of the tubing (to protect against dust or any foreign matter inside). The unit load weighs 2 - 3 tons (enough for the smaller cranes common on Central American construction sites).
Customization: Standard length 12 m(for container), 8m/shorter 10m length also available(suitable for tropical land transport restriction in Guatemala ,Honduras, etc.).
One-stop service: Spanish Certificate of Origin (Form B) in your hand for free, MTC Material Certificate, SGS Report, Packing List and Commercial Invoice; and A Promise "To Reissue Wrong Documents within 24 Hours".
Shipping: Following shipment, goods will be to a neutral carrier via land and sea. For the established transit times of “China → Panama → Colon Port (30 days) , Mexico → Manzanillo Ports (28 days), Costa Rica → Limon Ports (35 days)”, we also provide short-haul transit services for “port to oil field/construction location” (local Panamanian logistics provider TMM as an example).
1. What is API 5L Grade B?
A carbon steel seamless pipe standard for oil, gas, water, and industrial pipelines, providing reliable strength and durability.
2. PSL1 vs PSL2 – Which one to choose?
PSL1: standard requirements, suitable for normal pipelines
PSL2: stricter testing and impact requirements, ideal for offshore, sour, or low-temperature conditions
3. Why seamless (SMLS) pipe?
No weld seam → uniform strength, better pressure performance, more reliable for high-pressure applications.
4. Typical applications
Oil & gas pipelines
Water & industrial fluid transport
High-pressure transmission lines
5. Available sizes & coatings
Diameter: ½″ – 48″+
Coatings: FBE, 3PE/3LPE, or concrete for corrosion protection
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
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