API 5L Line Pipes Supplier in the UAE
API 5L line pipes are carbon steel pipes manufactured to the American Petroleum Institute specification for transporting oil, gas, and water under high pressure over long distances. The specification controls chemistry, strength, toughness, and testing for every grade from Grade B up to X80 and beyond, which is why API 5L is the mandatory call-out on pipeline projects across the Gulf, from cross-country gas transmission to offshore gathering systems and plant interconnects.
Riyaarth Overseas is a proven API 5L line pipes supplier in the UAE, operating as a manufacturer, stockist, and exporter for pipeline operators, EPC contractors, procurement teams, and importers in Dubai, Abu Dhabi, Sharjah, and across the GCC. We supply API 5L Grade B, X42, X46, X52, X56, X60, X65, X70, and X80 line pipes in both PSL1 and PSL2, in seamless and welded construction, with sour service and coated options for the region’s most demanding pipeline specifications.
What we supply:
- Seamless API 5L Line Pipes: for high-pressure gathering lines, flowlines, and small to medium diameters up to 24″
- ERW / HFW Welded Line Pipes: economical high-frequency welded pipe for medium diameters and moderate pressures
- LSAW / DSAW Line Pipes: longitudinally submerged arc welded pipe for large-diameter, thick-wall transmission service
- SSAW / HSAW Spiral Welded Line Pipes: cost-efficient spiral welded pipe for water transmission and large low-pressure lines
- Sour Service Line Pipes: PSL2 grades with HIC and SSC testing per NACE MR0175 / ISO 15156 for H2S-bearing service
- Coated Line Pipes: FBE, 3LPE, 3LPP, internal flow coating, concrete weight coating, and galvanizing on request
Every pipe is supplied against the current API 5L edition with full traceability, so the material clears operator document review the first time.
For the current API 5L Line Pipe price in the UAE, send your grade, PSL level, diameter, wall thickness, and tonnage to Riyaarth Overseas, and our team will return a project-specific quotation with delivery terms to your location.
Specifications of API 5L Line Pipes
| Parameter | Specification |
|---|---|
| Governing Standard | API 5L (latest edition) / ISO 3183 |
| Product Specification Levels | PSL1 and PSL2 |
| Grades | Gr A, Gr B, X42, X46, X52, X56, X60, X65, X70, X80 (X90 and above against project orders) |
| Construction | Seamless, ERW, HFW, LSAW, DSAW, SSAW/HSAW (spiral welded) |
| Outer Diameter | 21.3 mm to 1219 mm (1/2" to 48"); larger diameters on request |
| Wall Thickness | Sch 20 up to Sch XXS and pipeline-specific walls per drawing |
| Length | Single random (5 to 7 m), double random (11 to 13 m), or cut lengths |
| Ends | Plain end, bevelled end (30 degrees per API 5L for field welding) |
| Coatings | Bare with anti-rust oil, FBE, 3LPE, 3LPP, internal epoxy flow coat, galvanized |
| Sour Service | HIC tested per NACE TM0284 and SSC tested per NACE TM0177 where specified |
| Dimensional Standard | ASME B36.10M and API 5L dimension tables |
PSL1 vs PSL2: What UAE Buyers Need to Know
| Requirement | PSL1 | PSL2 |
|---|---|---|
| Grade Range | Gr A up to X70 | Gr B up to X120 |
| Yield Strength | Minimum only | Minimum and maximum specified |
| Charpy Impact Testing | Not required | Mandatory |
| Carbon Equivalent Limit | Not required | Mandatory (CE IIW 0.43 max, typical) |
| Sulphur / Phosphorus | 0.030 / 0.030 max | 0.015 / 0.025 max |
| NDT of Seamless Pipe | When specified | Mandatory |
| Weld Repair of Pipe Body | Permitted within limits | Not permitted |
| Certification | On request | Mandatory with full traceability |
Most UAE hydrocarbon pipeline specifications, including operator standards for gas and sour service, call for PSL2 because of its guaranteed toughness and tighter chemistry. PSL1 remains acceptable for water lines and general low-risk service. Tell us the service, and we will confirm the correct PSL level before you order.
Mechanical Properties
| Grade | Yield Strength (min) | Tensile Strength (min) | Typical UAE Application |
|---|---|---|---|
| API 5L Gr B | 245 MPa | 415 MPa | Plant piping, water lines, short runs |
| API 5L X42 | 290 MPa | 415 MPa | Gathering lines, utility pipelines |
| API 5L X52 | 360 MPa | 460 MPa | Oil and gas flowlines, station piping |
| API 5L X60 | 415 MPa | 520 MPa | Medium-pressure transmission |
| API 5L X65 | 450 MPa | 535 MPa | High-pressure gas transmission, offshore |
| API 5L X70 | 485 MPa | 570 MPa | Long-distance trunk lines |
| API 5L X80 | 555 MPa | 625 MPa | Highest-pressure transmission (PSL2 only) |
Stepping up the X-grade allows a thinner wall at the same design pressure. On a long UAE transmission route, moving from X52 to X65 can cut steel tonnage, welding passes, and logistics cost significantly, which is why grade selection is a commercial decision as much as a technical one.
Chemical Composition
| Element | Gr B (PSL1) | X52 (PSL2) | X65 (PSL2) |
|---|---|---|---|
| Carbon (C) | 0.28 max | 0.24 max | 0.24 max |
| Manganese (Mn) | 1.20 max | 1.40 max | 1.45 max |
| Phosphorus (P) | 0.030 max | 0.025 max | 0.025 max |
| Sulphur (S) | 0.030 max | 0.015 max | 0.015 max |
| Nb + V + Ti (combined) | Not specified | 0.15 max | 0.15 max |
| Carbon Equivalent (CE IIW) | Not required | 0.43 max | 0.43 max |
PSL2 chemistry is deliberately cleaner and leaner. Lower sulphur improves resistance to hydrogen-induced cracking in sour gas, and the carbon equivalent cap keeps field girth welding predictable, both of which matter on UAE sour and offshore projects.
API 5L Line Pipe Grades We Supply to the UAE
API 5L Grade B
The entry grade for plant piping, water transmission, and short pipeline runs at moderate pressure. Frequently supplied multi-certified with ASTM A106 Gr B and A53 Gr B so one heat satisfies several specification call-outs on the same project.
API 5L X42, X46, X52
The mid-strength workhorses for gathering systems, flowlines, and in-plant pipeline piping across UAE oil and gas fields. X52 is the most commonly stocked line pipe grade in the region, available seamless and welded, PSL1 and PSL2.
API 5L X60, X65, X70
High-strength grades for gas transmission and offshore pipelines, normally specified as PSL2 with Charpy toughness at the project design temperature. X65 is the default for much of the UAE’s high-pressure gas network.
API 5L X80 and Above
PSL2-only grades for the highest-pressure trunk lines, where maximum strength minimises wall thickness on very large diameters. Supplied against project orders with full mill qualification documentation.
Sour Service Grades (NACE Compliant)
For H2S-bearing service such as the UAE’s sour gas developments, we supply PSL2 pipe with restricted hardness, HIC testing per NACE TM0284, and SSC testing per NACE TM0177, meeting NACE MR0175 / ISO 15156. State the H2S partial pressure on your enquiry, and we will match the testing regime.
Applications of API 5L Line Pipes in the UAE
Pipelines are the arteries of the UAE’s energy and water economy, and nearly all of them run on API 5L steel. Our line pipe supply supports:
- Gas Transmission: High-pressure X60 to X70 trunk lines linking fields, processing plants, and power stations
- Oil Flowlines and Gathering: X42 to X52 lines from wellheads to gathering stations, onshore and offshore
- Sour Gas Service: NACE-compliant PSL2 pipe for H2S-rich developments and associated gathering networks
- Offshore Pipelines: Seamless and LSAW pipe with 3LPE and concrete weight coating for subsea routes
- Refined Product Lines: Multi-product pipelines between refineries, terminals, and airports
- Water Transmission: Large-diameter SSAW and LSAW pipe for municipal and industrial water schemes
- Firewater and Hydrant Networks: Gr B and X42 pipe on industrial firewater ring mains
- Chemical Transport: Coated line pipe for industrial fluid transfer at high pressure
- Station and Terminal Piping: Pig launchers, receivers, manifolds, and station piping matched to the mainline grade
- EPC Fabrication: Double random lengths and bevelled ends delivered to spool yards in Dubai, Abu Dhabi, and Sharjah
Pairing the line pipe with matching A694 high-yield flanges and MSS SP-75 fittings from our stock keeps the whole pipeline system at consistent strength, which is exactly how operator specifications require it to be built.
Quality Assurance
Every API 5L consignment from Riyaarth Overseas is verified against the specification, the ordered PSL level, and your project requirements before dispatch. Our quality process includes:
- Heat-wise traceability with EN 10204 Type 3.1 mill test certificates, and 3.2 third-party certification on request
- Verification of chemistry, carbon equivalent, and mechanical properties against the ordered grade and PSL level
- Charpy V-notch impact testing for PSL2 at the specified test temperature
- Hydrostatic testing of every pipe per API 5L, with test pressure recorded on the certificate
- NDT of the pipe body and weld seam (UT, EMI, or RT as applicable to the manufacturing route)
- HIC and SSC testing for sour service orders per NACE TM0284 and TM0177
- Dimensional inspection of OD, wall thickness, ovality, straightness, length, and bevel angle
- Coating inspection including thickness, holiday detection, and adhesion checks on FBE and 3LPE orders
- Marking verification per API 5L (grade, PSL, size, heat, and monogram details) and export packing inspection
FAQs
Products
Industry We Serve
- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry