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API 5L X52 / X60 / X65 / X70 / X80 Seamless Line Pipe | SMLS Pipeline Steel Tube Supplier
| 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) : For pipelines built to a basic standard quality level.
PSL 2 (Product Specification Level 2) : Using higher mechanical properties, tighter chemical controls and NDT, more aggressive specification.
| Item | PSL 1 | PSL 2 | Comparison |
| Chemical Composition | Standard chemical composition requirements | More stringent control of phosphorus, sulfur, and alloying elements | PSL 2 offers improved material consistency and corrosion resistance. |
| Yield Strength | Meets the specified grade requirements | Complies with the same grade requirements, with tighter production control | Mechanical properties are more consistently maintained in PSL 2. |
| Tensile Strength | Meets the specified grade requirements | Equivalent strength with stricter quality assurance | Both satisfy the standard, while PSL 2 provides enhanced reliability. |
| Elongation | Standard ductility requirements | Same elongation requirements with closer quality monitoring | Ensures dependable performance in demanding applications. |
| Impact Toughness | Optional depending on project specification | Charpy V-Notch testing is mandatory at specified temperatures | PSL 2 is better suited for cold climates and critical pipelines. |
| Welding Performance | Suitable for general welding applications | Higher welding quality requirements and additional verification | Provides improved weld integrity for high-performance pipelines. |
| Dimensional Accuracy | Standard manufacturing tolerances | Tighter control of outside diameter and wall thickness | Offers better installation accuracy and pipeline alignment. |
| Inspection & NDT | Standard inspection procedures; additional NDT when required | Comprehensive non-destructive testing (UT, RT, MPI, etc.) is typically required | Enhances product reliability and operational safety. |
| Typical Applications | General oil, gas, and water transmission pipelines | High-pressure, low-temperature, sour service, and critical pipeline projects | PSL 2 is preferred where safety and performance are essential. |
| Production Cost | More economical | Higher manufacturing and inspection costs | Additional testing and stricter quality control increase the overall cost. |
| API 5L Grade | Minimum Yield Strength | Typical Applications Across the Americas |
| Grade B | ≥245 MPa | Commonly used for low-pressure natural gas transmission in North America and oil & gas gathering systems in Central America. |
| X42 / X46 | ≥290 MPa / ≥317 MPa | Suitable for municipal gas distribution networks, agricultural irrigation pipelines, and medium-pressure energy infrastructure projects. |
| X52 (Most Popular) | ≥359 MPa | Widely applied in shale oil developments in the U.S., onshore oil & gas transportation in Brazil, and cross-border natural gas pipeline projects in Central America. |
| X60 / X65 | ≥414 MPa / ≥448 MPa | Ideal for high-pressure transmission systems, including Canadian oil sands projects and offshore pipelines in the Gulf of Mexico. |
| X70 / X80 | ≥483 MPa / ≥552 MPa | Designed for long-distance crude oil and natural gas transmission, deepwater offshore developments, and other demanding energy infrastructure projects requiring high strength. |
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.
Extensive Export Experience – Over 15 years of supplying steel products to North, Central, and South America, with a deep understanding of local market requirements.
Complete Product Portfolio – One-stop supplier for API steel pipes, structural steel, steel plates, coils, beams, sheet piles, and customized steel solutions.
International Quality Standards – Products manufactured in accordance with API, ASTM, ASME, EN, JIS, and ISO standards, supported by Mill Test Certificates (MTC) and third-party inspections upon request.
Flexible Custom Manufacturing – Custom sizes, wall thicknesses, lengths, coatings, beveling, threading, and special packaging to meet project specifications.
Reliable Supply Capacity – Stable production schedules, large inventory, and efficient logistics ensure fast delivery for urgent projects.
Competitive Global Pricing – Strong supply chain integration and factory partnerships provide cost-effective solutions without compromising quality.
Professional Export & Logistics Support – Experienced team handling export documentation, container loading, bulk vessel shipments, customs clearance, and international logistics.
Dedicated Customer Service – Fast quotation response, technical support, and comprehensive after-sales service for EPC contractors, distributors, and infrastructure projects throughout the Americas.
Royal Steel Group ensures every shipment is securely packed to protect the products during long-distance transportation and international export.
Standard Export Packaging – API 5L Steel pipes are bundled with high-strength steel straps and fitted with protective end caps when required.
Surface Protection – Wrapped with waterproof materials and plastic film to prevent moisture, rust, and surface damage during transit.
Clear Product Identification – Each bundle is marked with size, grade, heat number, and order information for easy traceability.
Flexible Shipping Methods – Available for 20GP/40GP containers, open-top containers, break bulk vessels, and bulk cargo based on product dimensions and project requirements.
Global Logistics Support – Efficient delivery to ports across North America, Central America, South America, the Middle East, Africa, and Southeast Asia, with complete export documentation provided.
Custom Packaging Available – Special packaging, labeling, and loading solutions can be arranged to meet customer specifications and project requirements.
Q1: What is your delivery time?
Delivery time depends on product specifications, order quantity, and processing requirements. Standard products usually have shorter lead times, while customized products require additional production time.
Q2: Which countries do you export to?
Our products are exported to customers worldwide including North America, Europe, Southeast Asia, Middle East, South America, and other international markets.
Q3: What payment methods do you accept?
We support multiple payment methods according to international trade practices, including T/T and other negotiated payment solutions.
Q4: Why choose your company?
With over 15 years of manufacturing experience, advanced production equipment, strict quality control, customized processing capabilities, and professional export services, we provide reliable steel solutions for global customers.
Q5: How can I get a quotation?
Please send us your required product type, material grade, dimensions, quantity, and technical requirements. Our team will provide a quotation as quickly as possible.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
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