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1/8″ – 12″ NB
Custom cut lengths, no minimum order quantity
17Cr – 12Ni – 2.5Mo – 0.08C Max
Standard molybdenum-alloyed austenitic grade, UNS S31600
Seamless & Welded (ERW/EFW)
Available in round, square & rectangular sections
ASTM A312 / ASME SA312 TP316
Cross-referenced to UNS S31600 • WNR 1.4401
EN 10204 3.1 & 3.2 MTC
Batch-wise traceability with third-party inspection on request
Up To 870°C (Intermittent)
Molybdenum addition improves resistance to pitting & corrosion
Ex-Stock Pricing
Direct stockist rates, no middleman markup
Cut & Polish To Size
Custom lengths, ends & surface finish on request
Dual-Code Certified
Every heat verified to ASTM A312 & ASME SA312 TP316L
Global Export Experience
Regular shipments to Africa, the Gulf, the Caucasus & the Americas
PED 2014/68/EU
Alongside SGS, TUV & Lloyd’s approvals
Quote In 48 Hours
Fast turnaround on every 316L pipe enquiry
📋 Table of Contents
Grade 316L represents the low-carbon counterpart within the 316 stainless family, manufactured to comply with ASTM A312 and ASME SA312 TP316L requirements while keeping carbon content capped at just 0.035%. This particular grade is recognized under multiple international codes, including UNS S31603, Werkstoff Number 1.4404 / 1.4435, JIS SUS 316L, GOST 03Х17Н14М3, and GB 00Cr17Ni14Mo2 — each referring to the same molybdenum-enriched, easily weldable austenitic stainless material. Aesteiron Steels LLP maintains a steady inventory of 316L pipes in seamless, ERW, and EFW variants, available in round, square, rectangular, and hollow structural forms, with cutting, beveling, and shipment generally handled within a two-day window once orders are finalized.
The molybdenum presence, typically between 2% and 3%, gives 316L pipe notable strength against pitting and crevice corrosion in environments exposed to chlorides, and its reduced carbon composition helps prevent carbide formation along weld seams, making post-weld heat treatment largely unnecessary. Because of these characteristics, the grade finds wide application in marine equipment, pharmaceutical process lines, food and dairy processing systems, medical-grade tubing, and offshore piping networks. Each shipment is accompanied by full material traceability under EN 10204 3.1/3.2 documentation, with PED 2014/68/EU-certified stock also obtainable upon request.
Detailed size and composition requirements for ASTM A312 TP316L pipe, laid out card by card.
As a Stainless Steel 316L Pipe Supplier in India we supply pipes suited for a broad temperature range.
Working pressure ratings by pipe O.D. and wall thickness for ASTM A312 TP316L pipe – verify final figures against ASME B31.3 for your project code.
| Pipe O.D. (in.) | Wall Thickness (in.) | Working Pressure (psig) |
|---|---|---|
| 1/4 | .035 | 4800 |
| 1 | .109 | 3900 |
| 5/16 | .065 | 7300 |
| 5/16 | .035 | 3700 |
| 3/8 | .065 | 6100 |
| 3/4 | .065 | 3000 |
| 3/4 | .049 | 2200 |
| 1 | .065 | 2200 |
| 3/8 | .035 | 3100 |
| 3/4 | .083 | 4000 |
| 1/8 | .028 | 7900 |
| 1/4 | .065 | 9500 |
| 1/4 | .049 | 7000 |
| 1/4 | .028 | 3700 |
| 1/2 | .065 | 4400 |
| 5/16 | .049 | 5400 |
| 1 | .083 | 2900 |
| 1 | .120 | 4300 |
| 3/8 | .049 | 4400 |
| 3/4 | .095 | 4600 |
| 1/2 | .049 | 3200 |
| 1 | .095 | 3400 |
| 1/2 | .035 | 2300 |
| 1/8 | .035 | 10100 |
Depending on the application, Stainless Steel 316L Pipe is available in a range of construction types.
Each length carries stamped details for quick on-site identification.
ASTM A312 TP316L, UNS S31603
Mill name and origin
OD, thickness & schedule marked
Ensures full batch traceability
As a leading Stainless Steel 316L Pipe Exporter, we hold the following schedules ready across the most-requested IPS sizes.
As a leading Stainless Steel 316L Pipe we ship pipes made to UNS S31603 chemical composition.
| Grade | Cr % | Mo % | Ni % | S (max) | Si % (max) | P (max) | Mn % (max) | C % (max) |
|---|---|---|---|---|---|---|---|---|
| ASTM A312 TP316L | 16.0–18.0 | 2.0–3.0 | 10.0–14.0 | 0.030 | 0.75 | 0.045 | 2.00 | 0.035 |
All orders are repacked at our facility before shipment to withstand handling on extended export journeys.
Protects bore and threads from damage in transit
Applied on polished pipe to avoid surface scratches
Guards against moisture and corrosion en route
Export-grade crating or strapped bundles for sea freight
Every batch of Stainless Steel 316L Pipe is dispatched with verified mechanical test reports.
As a leading Stainless Steel 316L Pipe Exporter we supply pipes with low-carbon physical properties for weld resistance.
As a Stainless Steel 316L Pipe Supplier in India we support TIG and MIG welding methods.
Automated, consistent welds for pharma/dairy tube
ER316L filler, best for root pass & thin wall
E316L-16 electrode, site & field repair welds
ER316L wire, faster fill for thicker sections
Deep, narrow weld for heavy wall pipe
Tell us if you need seamless, GTAW, or EFW 316L pipe and we’ll confirm availability within 48 hours.
Indicative Ra values across common finishes, plus the roughness coefficient used for flow calculations.
2B Cold Rolled, Ra µm
Pickled Mill Finish, Ra µm
No.8 Mirror Polish, Ra µm
No.4 Brushed Satin, Ra µm
Electropolished, Ra µm
Absolute Roughness ε, mm (Drawn Pipe)
As a Stainless Steel 316L Pipe Supplier in India we stock all standard wall thickness ranges.
| Size (in.) | Outside Diameter (mm) | Wall Thickness (mm) | Wall Thickness (in.) |
|---|---|---|---|
| 1¼″ | 42.164 | 3.5560 | .140 |
| 8″ | 219.075 | 8.1788 | .322 |
| 3/4″ | 26.670 | 2.8702 | .113 |
| 2″ | 60.325 | 3.9116 | .154 |
| 3/8″ | 17.145 | 2.3114 | .091 |
| 6″ | 168.275 | 7.1120 | .280 |
| 3½″ | 101.600 | 5.7404 | .226 |
| 4″ | 114.300 | 6.0198 | .237 |
| 12″ | 323.850 | 9.5250 | .375 |
| 1″ | 33.401 | 3.3782 | .133 |
| 5″ | 141.3002 | 6.5532 | .258 |
| 10″ | 273.050 | 9.2710 | .365 |
| 3″ | 88.900 | 5.4864 | .216 |
| 1/8″ | 10.287 | 1.7272 | .068 |
| 1/2″ | 21.336 | 2.7686 | .109 |
| 2½″ | 73.025 | 5.1562 | .203 |
| 1½″ | 48.260 | 3.6830 | .145 |
As a Stainless Steel 316L Pipe Stockist in Mumbai every pipe is supplied with valid test certificates.
Radiography & Ultrasonic Test
Intergranular Corrosion Test
EN 10204 3.1 MTC
EN 10204 3.2 Witnessed
Hydrostatic Test
Positive Material ID
Cross-reference table for UNS S31603 pipe as it is designated across the world’s major standards.
Our Reach Across the Gulf & Levant
Dimensional tolerance limits held on every SS 316L pipe order.
Single random, double random or fixed cut length
±0.4% or ±0.1 mm, whichever is greater
–12.5% / +no limit, per ASTM A999
0.2% of total pipe length, maximum
Quick comparison to help you pick the right construction for your project.
| Parameter | ASTM A312 316L Seamless Pipe | ASTM A312 316L Welded Pipe |
|---|---|---|
| Typical Size Range | 1/8″ – 12″ | 4″ – 24″ and above |
| Lead Time | Standard | Faster for large diameters |
| Weld Line | None | Longitudinal, ground flush |
| Pressure Handling | Higher, uniform wall | High, weld-verified by RT/UT |
| Cost | Higher per size | More economical, large OD |
Bright annealed and mill pickled surface finishes are offered on request across all SS 316L pipe sizes.
Dull Matte
Bright Annealed
Brushed Satin
Cold Rolled Bright
Mirror Polish
Electropolished
Our SS 316L pipe stock is sourced from mills following standard seamless and welded production routes.
316L coils are slit to the exact strip width needed
Strip is roll-formed into shape and longitudinally fusion welded
Weld seam is ground flush and sized to the final OD
Pipe is solution annealed, pickled, RT/UT tested, and issued an MTC
As a Stainless Steel 316L Pipe Stockist in Mumbai every pipe suits dairy, offshore, and water treatment applications.
Heat Exchangers
Tube bundles for high-temp loopsPotable Water Systems
Municipal & desalination linesKitchen Equipment
Hygienic commercial cooking linesChemical Containers
Acid & caustic media storageRailway Cars & Trailers
Structural framing for rolling stockOil & Gas Industry
Offshore-rated process pipingMarine Applications
Seawater-exposed hull pipingPharmaceutical Equipment
Orbital-welded sanitary skid pipingMining & Water Filtration Screens
Wear-resistant slurry screensArchitectural Applications
Railings, facades & structural trimMedical Devices
Surgical & diagnostic instrumentationFood Processing
Dairy, brewing & sanitary lines
Ex-stock size range held ready for immediate dispatch, sorted by pipe construction.
1/2″ – 8″ NB
4″ – 24″ NB
1/2″ – 12″ NB
1/8″ – 3/8″ NB, seamless
14″ – 48″ NB, welded
No MOQ, cut to drawing across all sizes
Final pricing is shaped by order size, shipping destination, and the finish or testing selected.
Custom cut lengths priced against MOQ slabs
Ni/Mo surcharge trends drive raw material cost
Seamless commands a premium over ERW/EFW
Price in India, UAE Dirham, Malaysia, Singapore, UK & USA varies by freight and duty
Mirror polish, PMI and third-party inspection add cost
Share your size, schedule and shipping details for a quote within 48 hours.
As a Stainless Steel 316L Pipe Stockist in Mumbai every pipe follows a seamless or fusion-welded manufacturing process.
Plasma, saw or laser cut to exact drawing dimensions
Weld-prep bevels or NPT/BSP threaded ends
U-bends, coils and custom fabricated assemblies
2B, No.4 satin or No.8 mirror finishing lines
Stock sourced from these globally recognized stainless steel mills.
Yieh United Steel (YUSCO)
ThyssenKrupp Nirosta
POSCO
Acerinox
Aperam
Jindal Stainless
Sandvik
Outokumpu
Sourced from leading producers including Jindal Stainless, Outokumpu, Aperam, Acerinox, POSCO, and Sandvik, our SS 316L Pipe inventory sits at regional stock points spread across the Middle East, Africa, and the Americas, so buyers get faster access and shorter lead times wherever they order from.
Stocking Distributor for Jindal Stainless & POSCO 316L PipeDistributor
Supplier of Outokumpu & Sandvik Seamless SS 316L PipeSupplier
Distributor for North American Stainless & Jindal Stainless 316L PipeDistributor
Authorised Stockist of Aperam & YUSCO 316L Pipe gradesStockist
Stockholder for North American Stainless & Jindal Stainless PipeStockholder
Authorised Stockist of Aperam & YUSCO 316L Pipe gradesStockist
Stockholder for Jindal Stainless & Sandvik 316L PipeStockholder
Stocking Distributor for Outokumpu & North American Stainless PipeDistributor
Stockist of Aperam & Outokumpu 316L PipeStockist
Supplier of POSCO & YUSCO SS 316L PipeSupplier
HS Code varies by importing country – commonly filed under 7304.41 / 7306.40 for stainless tube and pipe. Always confirm the exact tariff heading with your customs broker before shipment.HS Code
Stockist for Outokumpu & Aperam SS 316L PipeStockist
Snapshot of the projects and clients we’ve supplied SS 316L Pipe to across different industries.
8″ large-bore, EFW, hydro & RT tested.
Municipal Water Treatment Project, USA
HOUSTON, USA2″ Sch 10S, electropolished, orbital welded.
Pharmaceutical Equipment Fabricator, South Africa
JOHANNESBURG, SOUTH AFRICAMirror polished, PMI & hydro-tested, EN 10204 3.1 MTC.
Food & Dairy Processing Plant, Egypt
CAIRO, EGYPT3″ Sch 40S, seamless, PMI & hydro-tested, EN 10204 3.1 MTC.
Offshore Oil & Gas Contractor, Nigeria
LAGOS, NIGERIA6″ Sch 40S, radiographed weld, PMI verified.
Petrochemical Plant Contractor, UAE
ABU DHABI, UAE4″ Sch 40S, seamless, third-party witnessed.
Chemical Manufacturing Plant, Morocco
CASABLANCA, MOROCCOMarine, pharma, food-grade, chemical, offshore, and heat exchanger piping.
Yes, both refer to UNS S31603 grade.
316L has lower carbon (max 0.03%), preventing weld-decay corrosion.
316L adds 2–3% molybdenum for better chloride and pitting resistance.
Yes, with EN 10204 3.1/3.2 MTC available on request.
1/8″ to 12″ NB, Sch 5S to 80S, seamless & welded.
Usually 7304.41 or 7306.40 – confirm with local customs.
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Conclusion
Stainless Steel 316L Pipe, certified to ASTM A312 / ASME SA312 (UNS S31603), offers strong corrosion resistance thanks to its molybdenum content and is supplied with EN 10204 3.1 MTC as standard. Stocked ex-India across all sizes and schedules, it remains a dependable choice for marine, pharmaceutical, food-grade, and offshore applications. Buyers across the Middle East, Africa, the Caucasus, and the Americas trust Aesteiron Steels LLP for fast, PED-ready 316L pipe quotes.
Quick form – quote in 2 hours.
