Stainless Steel 316/316L Pipes Supplier in the UAE
Stainless Steel 316 and 316L pipes are austenitic chromium-nickel grades alloyed with 2–3% molybdenum, which is what separates them from ordinary SS304. That molybdenum addition delivers noticeably better resistance to pitting and crevice corrosion in salt-laden air, chlorinated water, and mild chemical service—exactly the conditions that surround most UAE facilities. The low-carbon 316L variant adds one more advantage: it can be welded freely without sensitisation, so fabricated piping keeps its corrosion resistance in the heat-affected zone without any post-weld treatment.
Businesses looking for a reliable Stainless steel 316 and 316L pipes supplier in the UAE rely on Riyaarth Overseas for export-quality piping solutions manufactured to international standards. We supply SS 316 (UNS S31600) and SS 316L (UNS S31603) seamless and welded pipes and tubes to EPC contractors, fabricators, MEP companies, industrial distributors, and project buyers across Dubai, Abu Dhabi, Sharjah, and the wider GCC. Our products are manufactured in accordance with ASTM A312 for pipes and ASTM A213, ASTM A249, and ASTM A269 for tubing applications.
What we supply:
- Seamless SS 316/316L Pipes to ASTM A312 — for process lines, utility piping, and pressure applications
- Welded SS 316/316L Pipes to ASTM A312 / A358 — for water systems, structural runs, and large-bore service
- SS 316/316L Seamless Tubes to ASTM A213 — for heat exchangers, condensers, and boiler duty
- SS 316/316L Welded & Instrumentation Tubes to ASTM A249 / A269 — for hydraulic lines, instrumentation, and general service
- SS 316L U-Bend Tubes — for heat exchanger bundle retubing and new fabrication
Across the UAE, 316L piping is the workhorse grade for water treatment plants, food and beverage facilities, pharmaceutical projects, HVAC chilled water systems, hotel and building services, and refinery utility lines — applications that need dependable corrosion resistance in coastal air without stepping up to duplex pricing.
For the latest SS 316 Pipe price in the UAE, send your size list with grade, schedule, and quantity to Riyaarth Overseas and receive a tailored quotation with delivery terms to your Emirate.
Specifications of Stainless Steel 316/316L Pipes and Tubes
| Parameter | Specification |
|---|---|
| Pipe Standard | ASTM A312 / ASME SA312 |
| EFW Pipe Standard | ASTM A358 / ASME SA358 |
| Tube Standards | ASTM A213 / A249 / A269 (ASME SA equivalents) |
| Grades | SS 316 (UNS S31600), SS 316L (UNS S31603), SS 316H (UNS S31609), SS 316Ti (UNS S31635) |
| Type | Seamless, Welded (ERW / EFW), U-Bend |
| Outer Diameter | 6 mm to 914 mm (1/8" to 36") |
| Wall Thickness | Sch 5S up to Sch XXS |
| Length | Single random, double random, or cut lengths per drawing |
| Form | Round pipes and tubes; square/rectangular hollow sections and fittings on request |
| End Finish | Plain, bevelled, or threaded ends |
| Surface Finish | Annealed and pickled; bright annealed or polished (180/320 grit, mirror) on request |
SS 316/316L Pipe Schedule Chart
| NPS | OD (mm) | Sch 10S (mm) | Sch 40S (mm) | Sch 80S (mm) | Sch XS (mm) |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 2.11 | 2.77 | 3.73 | 4.78 |
| 1" | 33.4 | 2.77 | 3.38 | 4.55 | 6.35 |
| 2" | 60.3 | 2.77 | 3.91 | 5.54 | 7.62 |
| 4" | 114.3 | 3.05 | 6.02 | 8.56 | 11.13 |
| 6" | 168.3 | 3.40 | 7.11 | 10.97 | 14.27 |
| 8" | 219.1 | 3.76 | 8.18 | 12.70 | 15.09 |
| 10" | 273.0 | 4.19 | 9.27 | 12.70 | 18.26 |
| 12" | 323.9 | 4.57 | 9.53 | 14.27 | 17.48 |
Availability by schedule depends on current stock and mill production. Share your exact size, schedule, and length requirement, and we will confirm ex-stock supply or lead time along with a firm price.
Mechanical Properties
| Grade | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| SS 316 (S31600) | 515 MPa | 205 MPa | 35% | 217 HB |
| SS 316L (S31603) | 485 MPa | 170 MPa | 35% | 217 HB |
| SS 316H (S31609) | 515 MPa | 205 MPa | 35% | 217 HB |
| SS 316Ti (S31635) | 515 MPa | 205 MPa | 35% | 217 HB |
316L trades a small amount of strength for weldability. Where design stress governs, and welding is limited, standard 316 or dual-certified 316/316L material lets you claim the higher allowable stress while retaining low-carbon weld behaviour.
Chemical Composition
| Element | SS 316 (S31600) | SS 316L (S31603) | SS 316H (S31609) |
|---|---|---|---|
| Carbon (C) | 0.08 max | 0.030 max | 0.04–0.10 |
| Chromium (Cr) | 16.0–18.0% | 16.0–18.0% | 16.0–18.0% |
| Nickel (Ni) | 10.0–14.0% | 10.0–14.0% | 10.0–14.0% |
| Molybdenum (Mo) | 2.0–3.0% | 2.0–3.0% | 2.0–3.0% |
| Manganese (Mn) | 2.0 max | 2.0 max | 2.0 max |
| Phosphorus (P) | 0.045 max | 0.045 max | 0.045 max |
| Sulphur (S) | 0.030 max | 0.030 max | 0.030 max |
| Silicon (Si) | 1.00 max | 1.00 max | 1.00 max |
| Nitrogen (N) | 0.10 max | 0.10 max | — |
Most of our stock is dual-certified 316/316L — the chemistry satisfies the 316L carbon limit while mechanical properties meet 316 minimums, giving buyers a single material that covers both specification call-outs.
SS 316 Grades We Supply to the UAE
SS 316L (UNS S31603)
The most requested grade in our UAE order book. The 0.030% max carbon prevents carbide precipitation during welding, making 316L the default for fabricated pipework in water treatment, food processing, pharmaceutical, and building services projects across the Emirates.
SS 316 (UNS S31600)
The standard-carbon version, chosen where higher design strength matters and welding is minimal or followed by annealing. Common in machined components, flanged spools, and non-welded utility runs.
SS 316H (UNS S31609)
A controlled higher-carbon grade for elevated-temperature service above roughly 500°C, where the added carbon improves creep strength. Specified for refinery heaters, steam lines, and high-temperature process piping.
SS 316Ti (UNS S31635)
Titanium-stabilised 316 for sustained service in the sensitisation temperature range (approx. 425–815°C). An alternative to 316L where both weldability and prolonged heat exposure occur together, such as exhaust and furnace-adjacent piping.
When to Step Up from 316L
316/316L performs well in coastal atmosphere, treated water, and mild chemicals — but it is not the right grade for continuous seawater immersion or hot, high-chloride brine, where pitting can start quickly. For those duties, our Duplex 2205 and Super Duplex 2507 pipes are the engineered answer. Tell us your fluid, temperature, and chloride level, and we will recommend the most economical grade that actually survives the service.
Applications of SS 316/316L Pipes in the UAE
The UAE combines humid, salt-heavy coastal air with intensive construction, hospitality, food, and process industries — a mix that makes molybdenum-bearing 316L the sensible baseline over SS304 for most exposed or hygienic piping. Typical applications include:
- Water & Wastewater Treatment: Process piping, dosing lines, and filtration skids in municipal and industrial plants
- Food & Beverage: Hygienic process lines, CIP circuits, and dairy or beverage plant piping requiring sanitary finishes
- Pharmaceuticals: Purified water loops and clean utility piping where 316L is the industry-standard material
- HVAC & District Cooling: Chilled water piping, condenser connections, and plant room manifolds in towers and malls
- Oil & Gas Utilities: Instrument air, utility water, chemical dosing, and low-chloride process lines on plants and terminals
- Hotels & Buildings (MEP): Plumbing risers, pool plant piping, and rooftop services exposed to coastal atmosphere
- Chemical & Fertiliser Plants: Handling of mild acids, alkalis, and solvent streams within 316L’s corrosion envelope
- Marine Atmosphere Structures: Handrails, architectural piping, and dockside services in salt air (above the waterline)
- Heat Transfer Equipment: A213/A249 tubing for coolers, condensers, and heat exchangers in general service
- EPC & Fabrication: Spools, skids, and modular assemblies delivered to workshops in Dubai, Sharjah, and Abu Dhabi
For inland and atmospheric coastal service, 316L typically outlasts 304 by years in the UAE climate at a modest cost premium — which is why most regional consultants now specify it as the minimum grade for exposed stainless pipework.
Quality Assurance
Every SS 316/316L consignment from Riyaarth Overseas is inspected against ASTM/ASME requirements and your purchase order before dispatch. Our quality process includes:
- Heat-number traceability with EN 10204 Type 3.1 mill test certificates (3.2 with third-party witness on request)
- Dimensional verification of OD, wall thickness, ovality, straightness, and length
- Tensile and hardness testing per the governing ASTM standard
- Flattening, flaring, and reverse-bend tests on tubes where specified
- Positive Material Identification (PMI) to confirm grade and molybdenum content on request
- Hydrostatic or eddy current testing per A312/A213 requirements, plus UT/RT/PT per project ITP
- Intergranular corrosion testing (ASTM A262 Practice E) for welded and critical service material
- Surface finish and pickling quality checks, with Ra reports for polished sanitary tubing
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