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API 5L Line Pipe Manufacturer | Seamless Steel Pipe Supplier for Oil & Gas Projects
| Api 5l Steel Pipe Product Detail | |
| Product Parameter Item | Parameter Details |
| 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", 18", 20", 24" up to 40" |
| 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), 40 FT (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 | PSL1 | PSL2 | Notes |
| Chemical Composition Control | Standard limits on C, Mn, P, S | Stricter limits, lower P and S; additional microalloy element control allowed | PSL2 is more suitable for low-temperature and corrosive environments |
| Yield Strength (MPa) | According to grade specification | Same as PSL1; slightly higher for some high-grade steels | Basic mechanical requirements are similar |
| Tensile Strength (MPa) | According to grade specification | Same as PSL1 | |
| Elongation (%) | According to grade specification | Same as PSL1 | |
| Low-Temperature Impact (Charpy V-Notch) | Optional or per end-use requirement | Mandatory; typically tested at -20°C or -50°C | Enhances toughness at low temperature |
| Weldability | Meets standard requirements | Stricter, weldability tests often required | PSL2 demands higher weld performance |
| Dimensional Tolerance | Standard range | Stricter | PSL2 has tighter control on diameter and wall thickness |
| Defect Control / NDT | Standard inspection; UT/RT optional | Mandatory UT/RT/MPI | Ensures higher pipeline safety |
| Application Environment | General pipeline transportation | High-pressure, low-temperature, corrosive pipelines | PSL2 is preferred for projects with high safety requirements |
| Cost | Relatively lower | Slightly higher | Due to stricter inspection and manufacturing requirements |
| 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.
Professional api5l pipe supplier
Extensive experience in supplying Api 5l Line Pipe, seamless steel pipe, and carbon steel pipe for global oil & gas and infrastructure projects.
Strict Quality Control
Products are manufactured according to international standards with inspection of chemical composition, mechanical properties, dimensions, and surface quality.=
Complete Product Range
Supply API 5L Grade B, X42, X52, X60, X65, X70 Seamless Steel Pipe and welded pipes with customized specifications.
Reliable Supply Capacity
Strong factory resources and stable supply chain ensure consistent quality, competitive pricing, and on-time delivery.
Customized Solutions
Support customized pipe sizes, wall thickness, lengths, coatings, and end finishing to meet different project requirements.
Global Export Experience
Professional export service with complete documentation, including MTC, inspection reports, packing list, and shipping documents.
Project-Oriented Service
Providing integrated steel solutions for oil pipelines, gas transmission, construction, energy, and industrial applications worldwide.
Royal Steel Group provides professional packing and delivery solutions for API 5L Pipe and Seamless Steel Pipe to ensure safe transportation and reliable project supply worldwide.
Packing:
Pipes are bundled with high-strength steel straps for secure handling.
Pipe ends are protected with caps to prevent damage during transportation.
Waterproof wrapping and anti-rust protection are available for long-distance ocean shipping.
Each bundle is marked with product specifications, size, quantity, heat number, and customer requirements.
Customized packing methods are available for container or bulk vessel loading.
Delivery:
Flexible shipping options including container shipment, bulk vessel, and break bulk transportation.
Professional loading methods help prevent pipe deformation and surface damage.
Complete export documents provided, including Mill Test Certificate (MTC), inspection reports, commercial invoice, and packing list.
Efficient logistics coordination ensures timely delivery to oil & gas, construction, and infrastructure project sites worldwide.
1. Are you an Api 5l Line Pipe manufacturer or supplier?
Royal Steel Group is a professional steel supplier with reliable factory resources, providing API 5L Line Pipe, seamless steel pipe, and carbon steel pipe solutions for oil & gas, energy, and infrastructure projects worldwide.
2. What API 5L pipe grades can you supply?
We supply API 5L Grade B, X42, X52, X60, X65, and X70 line pipes in seamless and welded types with customized specifications available.
3. What quality certificates and inspection documents can you provide?
We provide complete quality documents including Mill Test Certificate (MTC), chemical composition report, mechanical test report, dimensional inspection, and third-party inspection service.
4. Can you customize API 5L pipe sizes and coatings?
Yes. We support customized diameter, wall thickness, length, end finishing, and anti-corrosion coatings such as 3PE and FBE according to project requirements.
5. How do you ensure safe delivery for overseas orders?
We provide professional export packing, container/bulk shipping solutions, and complete shipping documents to ensure safe and timely delivery to global project sites.
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