Stainless Steel 316L Flanges Quick Facts
Mortec At A Glance
Established
Since 2012 • 10+ yrs experience
Manufacturing Units
2 in-house units • Taloja & Mazgaon
Stockyard Area
8,850+ sq.ft • Ready-stock inventory
Certifications
ISO 9001:2015 • GST, IEC & MSME
Clientele
100+ clients • India & export markets
Export Reach
15+ countries • Africa, GCC & Americas
Testing Offered
Mechanical, chemical & PMI • MTC EN 10204 3.1 & 3.2
Shipment Documents
Invoice, Packing List • COO, COI, MTC, BL & Lab Report
Table of Content
BIS-Certified A182 F316L SORF Flange Manufacturer in India at Reasonable Price
Chloride water pits a plain 304 flange very fast. You need low-carbon, molybdenum-bearing austenitic metallurgy handled correctly. That is why Gulf and African buyers choose us. Weld neck, slip-on, blind and socket weld stay ready.
Every 316L flange ships with full mill test certification. NACE MR0175 compliance and export packing come on request. We deal direct from our forge, no trader layers. Our desk confirms bore, class and facing before dispatch.
We are a Stainless Steel 316L Flanges manufacturer in India. Billet cut to final facing happens in our units. Taloja and Mazgaon handle bore, class and gasket face. Every heat carries its own punched number. PMI, IGC and dimensional clearance are signed in-house.
Stainless Steel 316L Flanges Specification
Send your bore, class and quantity for a quick quote. Every ex-Mumbai shipment carries MTC with the material.
316L Stainless Steel Slip On Flanges Facing & Bore Options
- Raised face, flat face & ring joint
- Bore matched to buyer's pipe schedule
WNR 1.4404 Blind Flange Dimensional Standard
- ASME B16.5 for NPS ½–24
- ASME B16.47 Series A/B for NPS 26–48
SS 316L Slip On Flange Surface Treatment
- Pickled & passivated as standard
- Buffed or electropolished on request
UNS S31603 Socket Weld Flange Testing & Documentation
- PMI, IGC, tensile & hardness
- MTC, third-party inspection on request
A182 F316L Blind Flange Sour & Marine Service
- NACE MR0175 compliant lots available
- Chloride-duty grade desk review included
INOX 316L Forged Flange Production Route
- Forged per ASTM A182, plate-rolled per A240
- Indian & European mill sourced billet
Smooth Finish UNS S31603 Socket Weld and Blind Flange Size Range from NPS 1/2 to 48 in. as per ASME B16.5
316L Stainless Steel Flanges Size & Bolt Circle Chart
ASME B16.5 Class 150 raised-face weld neck dimensions below. Same drilling applies across every Class 150 flange type.
| NPS | Flange OD (mm) | Bolt Circle (mm) | No. Of Bolts |
|---|---|---|---|
| ½ | 89.0 | 60.5 | 4 |
| 1 | 108.0 | 79.2 | 4 |
| 2 | 152.4 | 120.7 | 4 |
| 4 | 228.6 | 190.5 | 8 |
| 6 | 279.4 | 241.3 | 8 |
| 8 | 342.9 | 298.5 | 8 |
| 12 | 482.6 | 431.8 | 12 |
| 24 | 812.8 | 749.3 | 20 |
Need a size beyond NPS 24, a different class, or RTJ drilling? Send Us Your Drawing.
Face & Finish Options For WNR 1.4404 Flanges
Kenyan water buyers and Gulf coastal buyers ask specifically. A set gasket-face finish keeps the joint leak-tight.
Stainless Steel 316L Flanges Manufacturer In India, send all three Bore, class and facing
Tell us the certificate format your inspector accepts and we mail a sample EN 10204 3.1 sheet before you release the PO.
INOX 316L Forged Flange Cross-Reference Grades
UNS S31603 has regional equivalents, all sharing the same low-carbon Cr-Ni-Mo chemistry.
ASTM / ASME (USA)
- UNS S31603
- ASTM A182 Gr F316L (Forgings)
- ASTM A240 316L (Plate)
- ASME SA182 / SA240
DIN / EN (Germany)
- Werkstoff 1.4404
- EN X2CrNiMo17-12-2
- DIN EN 10088 / EN 1092-1
JIS (Japan)
- SUS316L
- JIS G3459 / G4304 / G4305
AFNOR (France)
- Z2CND17-13
ISO / BS
- X2CrNiMo17-12-2 (ISO 15510)
- BS 316S11 / 316S13
Common Trade Names
- Marine Grade 316L
- Acid-Resisting Steel
- Low-Carbon 316
SS 316L Slip On Flange Pressure Class Range
Every ASME B16.5 class is held or mill-ordered here. Confirm design temperature for the exact rated pressure.
Stainless Steel 316L Flanges Product Range
We are a leading Stainless Steel 316L Flanges Supplier in India, backed by ex-stock inventory across every common type below.
ASTM A182 F316L Weld Neck Flanges
ASME B16.5 • NPS ½–48- Tapered hub for high-pressure joints
- Most-ordered form, held ex-stock
316L Stainless Steel Slip On Flanges
Economical • Easy Alignment- Slides over pipe before fillet weld
- Preferred for low-pressure utility lines
WNR 1.4404 Blind Flange
ASME B16.5 • All Classes- Seals pipe ends and branch outlets
- Used for hydrotest isolation
UNS S31603 Socket Weld Flange
Small Bore • NPS ½–4- Fillet welded, smooth bore finish
- Common on instrumentation branches
AISI 316L Lap Joint Flanges
Used With Stub End- Rotates free for fast bolt alignment
- Backing ring can be lower-cost carbon steel
SUS 316L Threaded Flanges
NPT / BSP • No Welding- Bolts on without site welding
- Suited to low-pressure, non-cyclic duty
316L SS Spectacle Flanges
Figure-8 • Line Isolation- Blind and open ends in one plate
- Positive shutoff seen at a glance
316L SS Plate Flanges
ASTM A240 Plate Cut- Cut and machined from A240 316L plate
- Cost-effective for large-bore water lines
Forging Stainless Steel 316L Flanges Manufacturer in Mumbai Since 2012 Offers Low Cost
Drop the size, class and facing on WhatsApp for forge desk sends back ex-stock plus mill-order lead time the same day.
A182 F316L Blind Flange Chloride & Seawater Pitting Resistance
This property draws buyers to Stainless Steel 316L. Gulf desalination lines depend on it daily.
AISI 316L Weld Flanges Sub-Zero & Cryogenic Toughness
Asked often by Canadian buyers. Carbon steel goes brittle, 316L does not.
Stainless Steel 316L Flanges Exporter Shipping Container-Ready From Mumbai To Dammam, Jebel Ali
GCC buyers get a landed FOB or CIF figure inside one working day, with sea-worthy crating and export paperwork already built into the number.
316L SS Plate Flanges Metric PN To ASME Class Match
Buyers moving between EN 1092-1 and ASME B16.5 paperwork often need this quick, ambient-temperature match.
UNS S31603 Socket Weld Flange Dispatch Timeline
Your flanges move out of Mumbai once PO clears. Pick any dispatch route listed below.
Ready-Stock Flanges
Checked orders leave our yard inside 3 working days
Sea Freight (FCL / LCL)
Best value for bulk lots; transit varies by destination port
Air Freight
For urgent turnaround needs, typically 4–6 days door to door
Country-Specific ETA
Tell us your discharge port and we lock in a firm date
SUS 316L Threaded Flanges End-Use Industries
Find a Stainless Steel 316L Flanges manufacturer in India. Unmatched quality backed by fast, reliable dispatch. ASTM A182 F316L Flanges are ideal for marine and offshore applications
Stainless Steel 316L Flange Supplier in India With Punched Heat Number
Send the P&ID extract and our metallurgist replies with the type, class and gasket face that will actually hold.
SS 316L Blind Flanges Inspection & Test Reports
Contact our Stainless Steel 316L Flanges exporter desk today. Quality inspections and Mill Test Certificate on request.
316L SS Spectacle Flanges Elemental Composition
ASTM A182 F316L Flanges offer excellent corrosion resistance in chemical processing
AISI 316L Lap Joint Flanges Strength & Hardness Data
ASTM A182 F316L Flanges ensure leak-proof joints under high-pressure conditions
ASTM A182 F316L Weld Neck Flanges Price Drivers
Four variables move the per-piece or per-kg price most - share yours for an accurate quote.
Stainless Steel 316L Flanges Manufacturer in Indis at Low Cost
Call us for various sizes and finishes at factory price in mumbai
Stainless Steel 316L Flanges FAQs
Quick answers buyers ask before ordering. Straight to the point, no filler.
What sizes and standards cover ASTM A182 F316L Flanges?
- NPS ½ to 24 per ASME B16.5
- NPS 26 to 48 per ASME B16.47 Series A/B
- Forged to ASTM A182 Grade F316L
- Class 150 through 2500 available
- Supplied solution annealed and pickled
Why choose ASTM A182 F316L Weld Neck Flanges for high-pressure lines?
- Tapered hub carries cyclic and thermal load
- Full penetration butt weld joint
- Bore matched to your pipe schedule
- Preferred from Class 600 upward
- State schedule so bore is cut correctly
Where are 316L Stainless Steel Slip On Flanges normally used?
- Low-pressure utility and water lines
- Slides over pipe, then fillet welded
- Easier alignment, lower fabrication cost
- Avoid on cyclic or thermal-shock duty
- Dimensions per ASME B16.5
What are SS 316L Blind Flanges used for?
- Seals pipe ends and branch outlets
- Standard for hydrotest isolation points
- Solid disc, no bore machining
- Available RF, FF and RTJ facing
- All classes, NPS ½ to 48
What is the equivalent grade for WNR 1.4404 Flanges?
- UNS S31603 in the ASTM system
- EN X2CrNiMo17-12-2 per EN 10088
- SUS316L in JIS, Z2CND17-13 in AFNOR
- BS 316S11 / 316S13
- All share low-carbon Cr-Ni-Mo chemistry
What size limit applies to UNS S31603 Socket Weld Flange?
- Normally supplied NPS ½ to 4
- Fillet welded with smooth bore finish
- Common on instrumentation branch lines
- Facing in RF, FF or RTJ
- Larger sizes – confirm with governing code
How do 316L SS Spectacle Flanges work on a line?
- Figure-8 plate, blind and open ends
- Flip to isolate during a turnaround
- Positive shutoff visible at a glance
- Paddle and spacer sets on same order
- Drilled to matching flange bolt circle
What is the production route for 316L SS Plate Flanges?
- Cut and machined from ASTM A240 316L plate
- Flat ring profile, no forged hub
- Cost-effective on large-bore water lines
- Drilled to your PCD sketch
- Pressure limit – confirm with governing code
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