What Sets Our SS 316L Pipe Supply Apart
19 Years on TP316L
We cut and certify 316L pipe in Mumbai. Our workshop has done this since 2007.
Heat-Linked Paperwork
Each pipe length links to its heat number. Every length also matches its own MTC.
Short Handling Window
Stock schedules are packed and invoiced quickly. It takes only 2 to 5 working days.
Cut to Your Drawing
We cut lengths and bevels to your drawing. End caps are fitted before every dispatch.
SS 316L Pipe Tech Snapshot

SS 316L Seamless Pipe Supplier In India As Per ASME B36.19M Specifications
We manufacture and stock ASTM A312 TP316L pipe in Mumbai. This UNS S31603 material suits process plant and contractor needs. A maximum 0.035 percent carbon cap protects weld zones. It prevents intergranular sensitisation during severe chemical service operations. The complete range covers seamless welded ERW and EFW types. We also stock ASTM A213 and ASTM A269 tubing. Dual certified SS 316 and 316L pipe is stocked. Our team provides schedule charts and weight estimates instantly. You receive fast written quotes for domestic and export orders.
316L Stainless Steel Pipe Specifications
Dimensions and end preparation details are listed here. Testing and compliance options add to the snapshot.
ASME B36.19M Dimension Basis for AISI 316L Seamless Pipe
B36.19M for 5S–80S; B36.10M for heavier walls
JIS SUS316L Threaded Pipe End Types
Plain, bevelled 37.5° to ASME B16.25, NPT threaded to ASME B1.20.1
Hydro / NDE Testing on ASTM A312 TP316L Hydraulic Pipe
Hydrostatic test, or NDE to ASTM E213 / E426
IGC Test for UNS S31603 Welded Pipe
ASTM A262 Practice E as a supplementary order item
Sour-Service Supply of ASME SA312 TP316L Instrumentation Tube
NACE MR0175 / ISO 15156: annealed, no cold work, 22 HRC max
Flattening and Flaring Checks on AISI 316L Heat Exchanger Tube
Flattening on welded pipe; flaring on A213 tube
European Paperwork for EN X2CrNiMo17-12-2 Seamless Pipe
PED 2014/68/EU and EN 10216-5 / EN 10217-7 on request
Marking on WNR 1.4404 / 1.4435 ERW Pipe
Spec, grade, size, schedule and heat number stencilled
Export Packing for UNS S31603 Polished Pipe
Plastic end caps, strapped bundles or seaworthy wooden cases
Mumbai Manufacturer of Stainless Steel 316L Pipe With Machining Since 2007
Order heat traceable 316L lengths with end caps. We cut and bevel them to your drawing.
Types of SS 316L Welded and Seamless Pipe
Nine UNS S31603 routes by a Stainless Steel 316L Pipe manufacturer in India. Choose by process and code and end use.

ASTM A312 TP316L Seamless Pipe
- No weld line to inspect
- NPS 1/8″ to 24″ range
- Chosen for high-pressure lines

ASME SA312 316L Welded Pipe
- Automatic weld, no filler metal
- Accepted for ASME code work
- Lower cost per metre

SS 316L ERW Pipe
- Resistance welded from 316L strip
- Even wall along the length
- Economical for utility service

UNS S31603 EFW Pipe
- Fusion welded with filler, ASTM A358
- Large bores rolled from plate
- Class 1 seams fully radiographed

SA213 TP316L Heat Exchanger Tube
- Seamless-only tube specification
- Hardness capped at 90 HRB
- Flare tested for tube-sheet rolling

A269 TP316L Instrumentation Tube
- General-service seamless or welded
- Sized by actual OD and wall
- Impulse, hydraulic and sample lines

WNR 1.4404 Pipe
- European number for 316L
- Seamless EN 10216-5, welded EN 10217-7
- Common on EU-engineered skids

AISI 316L Round Pipe
- Plain round section, cut to length
- Frames, skids and coastal railings
- Pickled or polished outer surface

SUS316L Cold Drawn Tube
- JIS name for Japanese drawings
- Drawn for close OD tolerance
- Smooth bore for clean fluids
Our Mumbai Team Quotes Stainless Steel 316L Pipe for Your Project
Share pipe size and schedule with metres needed. We quote a 316L rate to your port.
Check ASTM A312 TP316L Pipe Sizes Chart, Wall Thickness And Weight In Kg Per Meter
It prevents intergranular sensitisation during severe chemical service operations.
ASME SA312 TP316L Seamless Pipe Schedule Chart and Weight in kg/m
Wall thickness follows ASME B36.19M in mm. Weight is calculated for 316L at 8.0 g/cm³.
| NPS | OD (in) | OD (mm) | 5S | 10S | 40S | 80S | 10S kg/m | 40S kg/m |
|---|---|---|---|---|---|---|---|---|
| 1/8 | 0.405 | 10.3 | — | 1.24 | 1.73 | 2.41 | 0.28 | 0.37 |
| 1/4 | 0.540 | 13.7 | — | 1.65 | 2.24 | 3.02 | 0.50 | 0.65 |
| 3/8 | 0.675 | 17.1 | — | 1.65 | 2.31 | 3.20 | 0.64 | 0.86 |
| 1/2 | 0.840 | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 | 1.02 | 1.29 |
| 3/4 | 1.050 | 26.7 | 1.65 | 2.11 | 2.87 | 3.91 | 1.30 | 1.72 |
| 1 | 1.315 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 | 2.13 | 2.55 |
| 1-1/4 | 1.660 | 42.2 | 1.65 | 2.77 | 3.56 | 4.85 | 2.75 | 3.46 |
| 1-1/2 | 1.900 | 48.3 | 1.65 | 2.77 | 3.68 | 5.08 | 3.17 | 4.13 |
| 2 | 2.375 | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 | 4.01 | 5.54 |
| 2-1/2 | 2.875 | 73.0 | 2.11 | 3.05 | 5.16 | 7.01 | 5.36 | 8.80 |
| 3 | 3.500 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 | 6.58 | 11.51 |
| 3-1/2 | 4.000 | 101.6 | 2.11 | 3.05 | 5.74 | 8.08 | 7.55 | 13.83 |
| 4 | 4.500 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 | 8.53 | 16.38 |
| 5 | 5.563 | 141.3 | 2.77 | 3.40 | 6.55 | 9.53 | 11.78 | 22.18 |
| 6 | 6.625 | 168.3 | 2.77 | 3.40 | 7.11 | 10.97 | 14.09 | 28.80 |
| 8 | 8.625 | 219.1 | 2.77 | 3.76 | 8.18 | 12.70 | 20.35 | 43.36 |
| 10 | 10.750 | 273.1 | 3.40 | 4.19 | 9.27 | 12.70 | 28.32 | 61.47 |
| 12 | 12.750 | 323.9 | 3.96 | 4.57 | 9.53 | 12.70 | 36.68 | 75.30 |
| 14 | 14.000 | 355.6 | 3.96 | 4.78 | 9.53 | 12.70 | 42.15 | 82.89 |
| 16 | 16.000 | 406.4 | 4.19 | 4.78 | 9.53 | 12.70 | 48.25 | 95.06 |
| 18 | 18.000 | 457 | 4.19 | 4.78 | 9.53 | 12.70 | 54.33 | 107.18 |
| 20 | 20.000 | 508 | 4.78 | 5.54 | 9.53 | 12.70 | 69.96 | 119.39 |
| 22 | 22.000 | 559 | 4.78 | 5.54 | — | — | 77.06 | — |
| 24 | 24.000 | 610 | 5.54 | 6.35 | 9.53 | 12.70 | 96.34 | 143.82 |
Dash sizes and XXS walls follow ASME B36.10M. Weights are nominal and vary with mill tolerance.
OD and Wall Tolerance of UNS S31603 ERW Pipe
ASTM A312 pipe follows ASTM A999 tolerance rules. Precision tube limits are listed below separately.
| NPS | OD Over (mm) | OD Under (mm) |
|---|---|---|
| 1/8 to 1 1/2 | +0.4 | −0.8 |
| Over 1 1/2 to 4 | +0.8 | −0.8 |
| Over 4 to 8 | +1.6 | −0.8 |
| Over 8 to 18 | +2.4 | −0.8 |
| Over 18 to 26 | +3.2 | −0.8 |
| NPS | Wall Ratio t/D | WT Over (%) | WT Under (%) |
|---|---|---|---|
| 1/8 to 2 1/2 | All | +20.0 | −12.5 |
| 3 to 18 | Up to 5% | +22.5 | −12.5 |
| 3 to 18 | Over 5% | +15.0 | −12.5 |
| 20 and above (welded) | All | +17.5 | −12.5 |
| 20 and above (seamless) | Up to 5% | +22.5 | −12.5 |
| 20 and above (seamless) | Over 5% | +15.0 | −12.5 |
| Precision Tube OD (mm) | OD Tolerance (mm) |
|---|---|
| 4 to 35 | ±0.08 |
| Over 35 to 38 | ±0.15 |
| Over 38 to 60 | ±0.20 |
| Over 60 | ±0.25 |
Minimum wall is 87.5 percent of nominal wall.
Asked often by buyers in Canada
304 vs 316 vs AISI 316L Welded Pipe: Which Grade Fits?
Compare ASTM A312 limits side by side here. Match your P&ID grade to the actual service.
TP316L
UNS S31603 is the low carbon grade. It suits corrosive service in as welded state.
- Chromium16.0–18.0%
- Nickel10.0–14.0%
- Molybdenum2.00–3.00%
- Carbon max0.035%
- Tensile / Yield min485 / 170 MPa
VS
TP316
UNS S31600 gives good chloride pitting resistance. Welding use is limited for this grade.
- Chromium16.0–18.0%
- Nickel10.0–14.0%
- Molybdenum2.00–3.00%
- Carbon max0.08%
- Tensile / Yield min515 / 205 MPa
TP304
UNS S30400 suits fresh water and air service. It also handles low chloride chemicals well.
- Chromium18.0–20.0%
- Nickel8.0–11.0%
- MolybdenumNone specified
- Carbon max0.08%
- Tensile / Yield min515 / 205 MPa
Values are ASTM A312 limits for each grade. Warm seawater pits 316L so try higher alloys.
UNS S31603 Heat Exchanger Tube Chemical Composition
Heat analysis limits for TP316L follow ASTM A312. A 0 to 20% scale shows balance clearly.
ASTM A213 allows 0.040% carbon on some tubes. Small or thin tubes drawn many times qualify.
Mumbai Stockist of SS 316L Pipe With a Warehouse Operating Since 2007
Pick common schedules straight off our stock rack. No need to wait for a mill slot.
Tensile, Yield and Hardness of JIS SUS316L Hydraulic Pipe
ASTM A312 and A213 set room temperature minimums. The hardness cap is an A213 tube rule.
485MPa min
Tensile Strength (70 ksi)
170MPa min
Yield Strength (25 ksi)
35% min
Elongation in 50 mm
90HRB max
Hardness (192 HBW / 200 HV)
WNR 1.4404 / 1.4435 Hydraulic Pipe Pressure Rating
Working pressure is shown in psi per schedule. Values drop as the service temperature rises.
| NPS (in) | Sch | 100 °F | 200 °F | 300 °F | 400 °F | 500 °F | 600 °F | 650 °F | 700 °F | 750 °F |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 40 | 3048 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
| 1 | 80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 |
| 1 | 160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 |
| 1 1/2 | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
| 1 1/2 | 80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 |
| 1 1/2 | 160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 |
| 2 | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
| 2 | 80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 |
| 2 | 160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 |
| 3 | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
| 3 | 80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 |
| 3 | 160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2304 | 2280 |
| 4 | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
| 4 | 80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 |
| 4 | 160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 |
| 5 | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
| 5 | 80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 |
| 5 | 160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 |
| 6 | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
| 6 | 80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 |
| 6 | 160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 |
| 8 | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
| 8 | 80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 |
| 8 | 160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 |
| 10 | 40 | 974 | 840 | 755 | 694 | 645 | 615 | 596 | 584 | 578 |
| 10 | 80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 956 |
| 10 | 160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 |
Metric tube working pressure is shown in bar.
| Tube OD (mm) | 0.5 mm | 0.6 mm | 0.7 mm | 0.8 mm | 1.0 mm | 1.2 mm | 1.5 mm | 1.6 mm | 1.8 mm | 2.0 mm | 2.2 mm | 2.5 mm | 3.0 mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 464 | 567 | 672 | 775 | 965 | — | — | — | — | — | — | — | — |
| 4 | 335 | 411 | 491 | 567 | 723 | 873 | — | — | — | — | — | — | — |
| 6 | — | — | 310 | 360 | 464 | 567 | 723 | 775 | — | — | — | — | — |
| 8 | — | — | 227 | 262 | 335 | 411 | 528 | 567 | — | — | — | — | — |
| 10 | — | — | — | 206 | 262 | 320 | 411 | 442 | — | — | — | — | — |
| 12 | — | — | — | 169 | 215 | 262 | 335 | 360 | 411 | 464 | — | — | — |
| 14 | — | — | — | — | 182 | 222 | 282 | 303 | 345 | 389 | 433 | 500 | 612 |
| 16 | — | — | — | — | 158 | 192 | 244 | 262 | 298 | 335 | 372 | 430 | 528 |
| 18 | — | — | — | — | 140 | 169 | 215 | 230 | 262 | 294 | 326 | 377 | 464 |
| 20 | — | — | — | — | 113 | 137 | 173 | 186 | 211 | 236 | 262 | 301 | 369 |
Figures are for plain end seamless pipe. Confirm design pressure with your piping engineer.
Physical Properties of EN X2CrNiMo17-12-2 Heat Exchanger Tube
These are typical physical values for 316L. Use them for thermal and stress design.
| Property | Value |
|---|---|
| Density | 8000 kg/m³ |
| Elastic Modulus | 193 GPa |
| Thermal Expansion 0 to 100 °C | 15.9 µm/m/°C |
| Thermal Expansion 0 to 315 °C | 16.2 µm/m/°C |
| Thermal Expansion 0 to 538 °C | 17.5 µm/m/°C |
| Thermal Conductivity at 100 °C | 16.3 W/m·K |
| Thermal Conductivity at 500 °C | 21.5 W/m·K |
| Specific Heat 0 to 100 °C | 500 J/kg·K |
| Electrical Resistivity | 740 nΩ·m |
| Magnetic Permeability | 1.02 max |
Values are typical and not specification limits.
Asked often by buyers in the UAE
Dual-Certified SS 316/316L: ASTM A312 TP316L ERW Pipe Explained
Dual marked pipe meets each grade’s tighter limit. So a Stainless Steel 316L Pipe stockist in Mumbai needs one item.
From TP316L
Carbon • 0.035% max
316/316L
Both limits • one MTC
From TP316
515 / 205 MPa • tensile / yield min
One Stock Item
Fits TP316 or TP316L lines • no deviation
Two Grade Marks
Reported on the MTC • same heat
Plain 316L
Lower minimums • 485 / 170 MPa
WNR 1.4404 / 1.4435 Round Pipe and Other 316L Equivalents
These are cross reference names for 316L grade. Every Stainless Steel 316L Pipe supplier in Mumbai sees them on tenders.
UNS (USA)
S31603
AISI / SAE (USA)
316L
Werkstoff Nr. (Germany)
1.4404
EN name (Europe)
X2CrNiMo17-12-2
JIS (Japan)
SUS316L
BS (UK)
316S11
AFNOR (France)
Z3CND17-11-02
GOST (Russia)
03Ch17N14M3
Near match (Germany)
1.4435 / X2CrNiMo18-14-3
Exporting 316L Seamless Pipe From India to Saudi Arabia Through Dammam Port
Export crates carry marked lengths and packing lists. Heat matched MTCs also travel with each crate.
Asked often by buyers in Kenya
How EN X2CrNiMo17-12-2 EFW Pipe Price Per Kg Becomes Price Per Meter
A Stainless Steel 316L Pipe stockist in India quotes per kg not metre. Multiply the two and the comparison is fair.
1″ Sch 40S
2.55 kg/m × rate
2″ Sch 40S
5.54 kg/m × rate
4″ Sch 10S
8.53 kg/m × rate
6″ Sch 10S
14.09 kg/m × rate
Seamless or welded route
Schedule and NPS
Indian or imported mill
3.1 or 3.2 certificate
Order tonnage
Industries Running UNS S31603 U-Tube
Low carbon plus molybdenum is worth the cost. It pays off over 304L in these industries.
Asked often by buyers in South Africa
Mill and Sanitary Finishes on AISI 316L Polished Pipe
A Stainless Steel 316L Pipe supplier in India offers all these finishes. Sanitary A270 tube goes up to 12 inch.
Standard surface
Annealed & Pickled
Mill finish suits process and utility pipe lines. It works well for chemical lines too.
Smoother
Polished No. 180
This is mechanically polished for food contact use. It also suits clean in place systems.
Finer
Polished No. 240
A finer grit suits dairy and beverage lines. It also works well for cosmetic lines.
Smoothest bore
Electropolished
Top choice for pharma and high purity systems.
Add a maximum roughness Ra value to orders. This works for any polished grade you order.
Sending an RFQ for ASME SA312 TP316L Threaded Pipe
Share these six details for a single quote. It saves any back and forth later.
Step 1: Grade and spec
TP316L, dual 316/316L or A213 / A269 / A270 tube
Step 2: NPS and schedule
e.g. 2″ Sch 40S, or OD × wall for tube
Step 3: Quantity
Metres or kg, split by size
Step 4: Length and ends
SRL, DRL or cut; plain, bevelled or threaded
Step 5: Tests and papers
3.1 / 3.2 MTC, IGC, NACE, TPI agency
Step 6: Delivery point
Destination port and Incoterm
Chennai Supply of ASME SA312 TP316L Pipe Backed by EN 10204 3.2 Inspection
Book a third party witness check with us. It happens before the lot leaves our yard.
Dispatch Timelines and Export Lanes for JIS SUS316L Instrumentation Tube
Dispatch times of a Stainless Steel 316L Pipe exporter in India. It runs from our yard to your port.
- Common 5S–80S sizes held in Mumbai
- Packed and invoiced in 2–5 working days
- MTC travels with the invoice
- Loaded at Nhava Sheva (JNPT)
- Best value for FCL or LCL tonnage
- Lane transit named on the quote
- Flown out of Mumbai air cargo
- Suits short, urgent tube lengths
- Airway bill shared at booking
- Typical transit window 5–30 days
- Set by vessel rotation and customs
- Tracking sent once cargo sails
Ocean transit time depends on the arrival port. Vessel schedule and landing customs checks also matter.
Export Reach
EN X2CrNiMo17-12-2 ERW Pipe Delivered Across Asia, Africa and Beyond
Our inventory covers ex stock and mill orders. We ship it to our core export markets.
UAE
Turkey
Germany
Italy
Netherlands
Canada
Mexico
Venezuela
Malaysia
Thailand
Indonesia
Philippines
Vietnam
Uganda
Buyer Questions on ASTM A312 TP316L Seamless Pipe
Short answers to common purchase team questions. These come up before a PO is issued.
What decides the ASME SA312 TP316L Welded Pipe price per kg in India?
- Nickel and molybdenum market on the quote date
- Seamless or welded route, schedule and mill
- Quantity, certificate level and inspection scope
Is there a fixed JIS SUS316L Seamless Pipe price list?
- Rates follow alloy surcharges, so quotes are dated
- Stock schedules are quoted per kg and per metre
- Send sizes and quantity for a written rate
What is the wall thickness of AISI 316L Sch 10 and Schedule 40 Round Pipe?
- Sch 10S: 1″ = 2.77 mm, 2″ = 2.77 mm, 4″ = 3.05 mm
- Sch 40S: 1″ = 3.38 mm, 2″ = 3.91 mm, 4″ = 6.02 mm
- Full ASME B36.19M values are in the chart above
Can UNS S31603 Seamless Pipe be used where 316 is specified?
- Plain 316L has lower minimums: 485 / 170 MPa
- Dual-certified 316/316L also meets 515 / 205 MPa
- Order dual-certified pipe to cover both grades
Do you share an ASTM A312 TP316L Threaded Pipe schedule chart PDF?
- The chart on this page follows ASME B36.19M
- A PDF copy is sent along with your quotation
- Tube OD × wall tables are shared on request
Which test certificate comes with the WNR 1.4404 / 1.4435 Seamless Pipe?
- EN 10204 3.1 mill certificate as standard
- EN 10204 3.2 when a TPI agency witnesses tests
- IGC and NACE results added when ordered



