Buttweld Fittings Supplier in the UAE
Buttweld pipe fittings — elbows, tees, reducers, caps, crosses, and stub ends — are welded directly into the pipeline to form a continuous, full-penetration joint with the same pressure rating as the pipe itself. Because there are no threads or mechanical seals, a butt-welded system offers the lowest leak risk, the smoothest internal flow path, and the longest service life of any joining method, which is why ASME B16.9 fittings are the default on hydrocarbon, steam, seawater, and high-pressure process lines throughout the Gulf.
Riyaarth Overseas is a dependable buttweld fittings supplier in the UAE, operating as a manufacturer, stockist, and exporter for procurement teams, EPC contractors, piping fabricators, and importers across Dubai, Abu Dhabi, Sharjah, and the wider GCC. We supply buttweld fittings from 1/2″ (15 NB) to 48″ (1200 NB) in carbon steel, stainless steel, alloy steel, duplex, super duplex, and nickel alloys — matched to the pipe standards UAE projects actually run on, from ASTM A106 and API 5L through A312 and A790.
Types of buttweld fittings we supply:
- Elbows (90°, 45°, 180°) — long radius and short radius, to change flow direction
- Tees (Equal and Reducing) — to branch, combine, or split flow in the line
- Reducers (Concentric and Eccentric) — to transition between pipe sizes, with eccentric types for pump suctions and drainable lines
- Pipe Caps — to close pipe ends permanently or for future extension
- Pipe Crosses — for four-way branching in headers and manifolds
- Stub Ends — used with lap joint flanges for economical bolted connections on alloy lines
- Pipe Bends (3D / 5D) — long-radius bends for pigged pipelines and low-pressure-drop routing
Every fitting is produced to ASME B16.9 (with B16.28 and MSS SP-43 where specified), so it welds cleanly to standard pipe schedules without field rework — a small detail that saves real fabrication hours on UAE project sites.
For the current Buttweld Fittings price in the UAE, send your material grade, fitting type, size, and schedule list to Riyaarth Overseas, and our team will respond with an itemised quotation and delivery terms to your Emirate.
Specifications of Buttweld Fittings
| Parameter | Specification |
|---|---|
| Dimensional Standards | ASME B16.9, ASME B16.28, MSS SP-43, MSS SP-75, DIN, JIS |
| Material Standards | ASTM A234 / A403 / A815 / A420 / B366 (with ASME SA equivalents) |
| Types | Elbows (90°/45°/180° LR & SR), Tees (equal/reducing), Reducers (concentric/eccentric), Caps, Crosses, Stub Ends, 3D/5D Bends |
| Size Range | 1/2" (15 NB) to 48" (1200 NB) |
| Wall Thickness | Sch 5S / 10 / 20 / 40 / STD / 80 / XS / 160 / XXS |
| Construction | Seamless (typically up to 24") and welded (ERW/EFW) for larger sizes |
| Ends | Bevelled for welding per ASME B16.25 |
| Surface Finish | Pickled and passivated (stainless/duplex); black or anti-rust coated (carbon steel) |
| Marking | Grade, size, schedule, heat number, and standard on every fitting |
| Packing | Wooden cases/pallets suitable for sea freight to UAE ports |
Buttweld Fitting Dimension Chart (ASME B16.9, Long Radius)
| NPS | OD (mm) | 90° LR Elbow, Centre-to-End A (mm) | 45° LR Elbow, Centre-to-End B (mm) | Cap Length E (mm) |
|---|---|---|---|---|
| 1/2" | 21.3 | 38 | 16 | 25 |
| 1" | 33.4 | 38 | 22 | 38 |
| 2" | 60.3 | 76 | 35 | 38 |
| 4" | 114.3 | 152 | 64 | 64 |
| 6" | 168.3 | 229 | 95 | 89 |
| 8" | 219.1 | 305 | 127 | 102 |
| 10" | 273.0 | 381 | 159 | 127 |
| 12" | 323.9 | 457 | 190 | 152 |
Dimensions follow ASME B16.9; tee, reducer, and stub end dimensions are available on request for your full size list. Share your isometrics or MTO, and we will confirm stock against every line item.
Mechanical Properties
| Material / Grade | Tensile Strength (min) | Yield Strength (min) | Elongation (min) | Typical Matching Pipe |
|---|---|---|---|---|
| ASTM A234 WPB (Carbon Steel) | 415 MPa | 240 MPa | 30% | A106 Gr B / API 5L Gr B / A53 Gr B |
| ASTM A420 WPL6 (Low-Temp CS) | 415 MPa | 240 MPa | 30% (impact tested at −45°C) | A333 Gr 6 |
| ASTM A403 WP316L (Stainless) | 485 MPa | 170 MPa | 25% | A312 TP316L |
| ASTM A403 WP304L (Stainless) | 485 MPa | 170 MPa | 25% | A312 TP304L |
| ASTM A815 S31803 (Duplex 2205) | 620 MPa | 450 MPa | 25% | A790 Duplex |
| ASTM A815 S32750 (Super Duplex 2507) | 795 MPa | 550 MPa | 15% | A790 Super Duplex |
| ASTM A234 WP11 Cl.2 (Alloy Steel) | 485 MPa | 275 MPa | 20% | A335 P11 |
Matching the fitting grade to the pipe grade keeps weld chemistry compatible and satisfies code requirements — the right-hand column shows the pairings most UAE specifications call for.
Chemical Composition
| Element | A234 WPB | A403 WP316L | A815 S31803 (Duplex) |
|---|---|---|---|
| Carbon (C) | 0.30 max | 0.030 max | 0.030 max |
| Chromium (Cr) | 0.40 max* | 16.0–18.0% | 21.0–23.0% |
| Nickel (Ni) | 0.40 max* | 10.0–14.0% | 4.5–6.5% |
| Molybdenum (Mo) | 0.15 max* | 2.0–3.0% | 2.5–3.5% |
| Nitrogen (N) | — | — | 0.08–0.20% |
| Manganese (Mn) | 0.29–1.06% | 2.0 max | 2.0 max |
| Phosphorus (P) | 0.050 max | 0.045 max | 0.030 max |
| Sulphur (S) | 0.058 max | 0.030 max | 0.020 max |
| Silicon (Si) | 0.10 min | 1.00 max | 1.00 max |
*Residual element limits in A234 WPB. Full chemistry for every supplied grade is stated on the EN 10204 3.1 mill test certificate accompanying each heat.
Buttweld Fitting Materials We Supply to the UAE
Carbon Steel — ASTM A234 WPB / WPC, A420 WPL6
The volume material for UAE refinery, utility, fire protection, and pipeline work. WPB pairs with A106 Gr B and API 5L Gr B pipe; WPL6 covers low-temperature LPG and cold service down to −45°C. MSS SP-75 WPHY grades available for high-yield pipeline tie-ins.
Stainless Steel — ASTM A403 WP304/304L, 316/316L, 321, 347, 904L
Corrosion-resistant fittings for water treatment, food and pharma lines, HVAC, and coastal-atmosphere services. 316L is the regional default; 321/347 cover elevated-temperature stabilised service, and 904L handles aggressive acid duty.
Duplex & Super Duplex — ASTM A815 UNS S31803/S32205, S32750/S32760
High-strength, chloride-resistant fittings for seawater, desalination brine, and offshore process lines — supplied grade-matched to our A790 duplex and super duplex pipe stock so the entire spool comes from compatible material.
Alloy Steel — ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91
Chrome-moly fittings for high-temperature refinery heaters, steam headers, and power plant piping, matched to A335 P-grade pipe. Supplied normalised and tempered with hardness control per specification.
Nickel Alloys — Inconel, Monel, Hastelloy, Nickel 200, Alloy 20 (ASTM B366)
For the most severe corrosion and heat conditions — sour gas, hot acids, and chemical processing units where even super duplex is not enough. Available against project orders with full alloy traceability.
Applications of Buttweld Fittings in the UAE
Every piping system in the Emirates — from offshore platforms to district cooling networks — depends on welded fittings at each change of direction, branch, and size transition. Our buttweld fittings are used across:
- Oil & Gas: Elbows, tees, and reducers on flowlines, manifolds, and process piping, onshore and offshore
- Refineries & Petrochemicals: Alloy steel fittings on high-temperature units; stainless and carbon fittings on process and utility lines
- Desalination & Seawater Systems: Duplex and super duplex fittings on intake, brine, and high-pressure SWRO piping
- District Cooling & HVAC: Large-bore carbon steel fittings on chilled water headers across towers and communities
- Fire Protection: Welded elbows and tees on ring mains and pump room piping for civil defence-approved systems
- Power Generation: Chrome-moly fittings on steam lines; stainless fittings on cooling and treatment circuits
- Marine & Ports: Seawater cooling and ballast system fittings in corrosion-resistant grades
- Water & Wastewater: Stainless fittings on treatment plant process and dosing lines
- EPC Spool Fabrication: Complete fitting packages — pipe, fittings, and flanges from one grade-matched source — delivered to fabrication yards in Dubai, Sharjah, and Abu Dhabi
Sourcing fittings and pipe together from one stockist removes the most common cause of fabrication delays in the UAE: fitting deliveries that arrive in the wrong schedule or an unmatched grade after the pipe is already on site.
Quality Assurance
Every buttweld fitting consignment from Riyaarth Overseas is verified against ASME B16.9 dimensions and the governing ASTM material standard before dispatch. Our quality process includes:
- Heat-number traceability with EN 10204 Type 3.1 mill test certificates; 3.2 third-party certification on request
- Dimensional inspection of centre-to-end, wall thickness, ovality, and bevel angle per ASME B16.25
- Tensile and hardness verification per the applicable ASTM standard; impact testing for WPL6 and low-temperature service
- Heat treatment confirmation — normalising for carbon steel, solution annealing for stainless and duplex grades
- Positive Material Identification (PMI) on stainless, duplex, alloy, and nickel fittings on request
- Radiography (100% RT on welded fittings where specified) plus UT/PT per project ITP
- Intergranular corrosion testing (ASTM A262) for stainless and ASTM A923/G48 testing for duplex fittings on critical service
- Pickling, passivation, and surface finish checks; marking and packing inspection before containerisation
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