From Furnace to Fitting: How Ganpat Industrial Earns Trust on Every Stainless Steel 347 Forged Fittings Order
PMI-Checked, Every Lot
Grade confirmed on the shop floor before packing — no mix-ups
Built For Welded High-Temp Lines
Clean, carbide-free welds for superheater & refinery service
Quote Within 24 Hours
Ex-stock on standard classes, container-ready inside the week
Niobium-Stabilized Heats
Every forging traced to a Nb-stabilized 347 heat with clean weld metal chemistry
Full Fitting Range In One PO
Elbow • Tee • Reducer • Union • Plug — single dispatch, single invoice
Stainless Steel 347 Forged Fitting Highlights
- 1Stabilizer: Niobium (Columbium) — keeps weld metal free of chromium carbide
- 2Size Range: 1/8″ to 4″ NB • Class 2000# to 9000#
- 3Governing Standards: ASTM A182, ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-97
- 4Service Range: Cryogenic up to 815°C–900°C continuous / intermittent
- 5Core Grades: UNS S34700, WNR 1.4550, F347, SUS 347
- 6End Connections: Socket Weld & Screwed / Threaded (NPT, BSPT)
Or call our Mumbai office: +91 22 6743 7134 • Same-week dispatch on ex-stock classes
Ganpat Industrial Corporation forges its Stainless Steel 347 Forged Fittings from certified UNS S34700 billet stabilized with niobium, then machines each piece in-house to hold ASME B16.11 tolerances in both Socket Weld and Screwed configurations. Niobium ties up carbon during welding without the nitrogen-pickup problems sometimes seen with titanium, keeping the weld metal itself clean and resistant to cracking which is exactly why fabricators reach for 347 forgings over 321 or 304 on pressure-retaining lines that see repeated field welding. That niobium chemistry is what allows superheater headers, reheater piping, refinery cracking units, and nuclear-grade process systems to withstand cycle after cycle of welding and thermal stress. Headquartered in Mumbai, Ganpat Industrial Corporation brings over 25 years of experience manufacturing and exporting stainless steel piping components, supplying tested and fully documented batches to buyers across India, the Gulf, Europe, and Southeast Asia.
Mumbai · Forging Manufacturer & Exporter
ASTM A182 F347 Forged Fittings Built To Weld Clean At High Temperature
Ganpat Industrial forges Stainless Steel 347 Forged Fittings for refineries, superheater headers, and process skids across India, the Gulf, and Europe – wherever welded lines run hot and need to stay that way.
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓OHSAS 18001:2007
- ✓PED Certified
- ✓Petrofac Approved
ASTM A182 F347 Threaded Elbow Manufacturer in India With Different Threads like BSPT, NPTF, NPT etc
Specification Of Stainless Steel 347 Forged Fittings
AISI 347 Threaded Elbow Manufacturing Origin
- Made In India
- Mumbai Forge Shop
- Batch Traceable
- Export Documentation Ready
INOX 347 Forged Elbow Documentation Route
- Mill Test Certificate 3.1
- Dimensional Report
- Packing List
- Certificate Of Origin
Stainless Steel 347 Forged Plug Size & Pressure Class Range
- 1/8″ to 4″ NB
- Class 2000# to 9000#
- Metric & Imperial threads
- Custom bore on drawing
WNR 1.4550 Pipe Coupling Material Grade Traceability
- UNS S34700
- WNR 1.4550
- ASTM A182 F347
- Heat-Number Marked
SUS 347 Branch Fitting Export Packing
- Poly-Wrapped & Boxed
- Wooden Pallet / Crate
- Sea-Worthy VCI Pack
- PO-Wise Labelling
UNS S34700 Forged Reducer Surface & End Finish
- Bright Machined Bore
- Pickled & Passivated
- Beveled / Socket Ends
- NPT / BSPT Threads
347 Stainless Steel Forged Tee Stabilization Check
- Nb+Ta ≥ 10×C
- Weld-Metal Corrosion Test
- Sensitization Screening
- PMI Verified
ASTM A182 F347 Forged Union Production Route
- Hot Die Forging
- CNC Bore Machining
- Thread Rolling / Tapping
- Solution Annealing
SS 347 Threaded Pipe Fittings Governing Standard
- ASME B16.11
- MSS SP-79 / SP-83
- MSS SP-97 (Branch)
- ASTM A182
ASTM A182 F347 Threaded Elbow Thread Types
Choose NPT or BSPT threads from our Stainless Steel 347 Forged Fittings Supplier in India
NPT
Tapered
General-purpose thread, USA standard
NPTF
Dryseal
Fuel, hydraulic & pneumatic lines
BSPT
Tapered
Common in UK, Europe & Middle East
BSPP
Parallel
Used with a bonded seal washer
Offer UNS S34700 Socket Weld Reducer Produce With Value Added Services like Q & T, Heat Treatment etc
Value Added Services Of UNS S34700 Socket Weld Reducer
Stainless Steel 347 Forged Fittings Manufacturer in India offering Heat Treatment and Stress Relieving
Q&T
Quench & Temper
Boosts strength for severe service duty
Heat Treatment
Solution Annealing
Restores corrosion resistance post-forging
Stress Relieving
PWHT
Reduces residual stress before dispatch
Bright Annealing
Mirror Finish
Clean, scale-free bore & surface
Various Types Of SS 347 Forged Fittings
INOX 347 Forged Elbow
90° SW
SUS 347 Forged Cap
Class 3000
UNS S34700 Forged Reducer
Conc. / Ecc.
AISI 347 Threaded Elbow
NPT
Stainless Steel 347 Forged Plug
Solid / Hex
SS 347 Hex Bushing
Reducing
347 Stainless Steel Forged Tee
Equal Bore
WNR 1.4550 Pipe Coupling
Full / Half
ASTM A182 F347 Forged Union
Screwed
INOX 347 Forged Cross
Class 6000
SUS 347 Branch Fitting
MSS SP-97
AISI 347 Street Elbow
M&F Threaded
Need A Custom 347 Fitting Type Or Class?Share your drawing — get a factory-price quote within 24 hours.
INOX 347 Forged Elbow Dimensional Chart
Large Bore
2.1/2″–4″
C-E approx. 57–76mm • Socket depth 22–29mm
Small Bore
1/8″–1″
C-E approx. 20–35mm • Socket depth 10–16mm
Medium Bore
1.1/4″–2″
C-E approx. 38–51mm • Socket depth 17–19mm
UNS S34700 Forged Reducer Equivalent Grades
GB (China)
- 06Cr18Ni11Nb
- GB/T 14976
- GB/T 20878
JIS (Japan)
- SUS 347
- JIS G4303
- JIS G3459
BS (Britain)
- 347S31
- BS 3605
- BS EN 10088
IS (India)
- Grade 347
- IS 6911
- IS 1570 (Part 5)
ASTM / ASME (USA)
- A182 F347
- A312 TP347
- A213 / A249
- UNS S34700
EN / DIN (Europe)
- WNR 1.4550
- X6CrNiNb18-10
- EN 10088-2
Not Sure If Your Buyer’s Spec Matches Ours?Share their grade standard – we’ll match it to the correct Ganpat fitting.
347 SS Screwed Fittings Weight Chart
| DN-NPT | Major Diameter (mm) | Tapping Drill Size (mm) | TPI | Pitch (mm) |
|---|---|---|---|---|
| 2″ | 60.092 | 55.00 | 11.5 | 2.209 |
| 1/16″ | 7.895 | 6.00 | 27 | 0.941 |
| 5″ | 141.300 | 134.384 | 8 | 3.175 |
| 3/8″ | 17.055 | 14.10 | 18 | 1.411 |
| 10″ | 273.050 | 265.311 | 8 | 3.175 |
| 1/4″ | 13.616 | 10.70 | 18 | 1.411 |
| 3″ | 88.608 | 81.50 | 8 | 3.175 |
| 1″ | 33.228 | 28.50 | 11.5 | 2.209 |
| 12″ | 323.850 | 315.793 | 8 | 3.175 |
| 1/8″ | 10.242 | 8.25 | 27 | 0.941 |
| 8″ | 219.075 | 211.673 | 8 | 3.175 |
| 1-1/2″ | 48.054 | 43.50 | 11.5 | 2.209 |
| 4″ | 113.973 | 107.00 | 8 | 3.175 |
| 3/4″ | 26.568 | 22.60 | 14 | 1.814 |
| 6″ | 168.275 | 161.191 | 8 | 3.175 |
| 1-1/4″ | 41.985 | 37.00 | 11.5 | 2.209 |
| 3-1/2″ | 101.316 | 94.30 | 8 | 3.175 |
| 1/2″ | 21.223 | 17.40 | 14 | 1.814 |
| 2-1/2″ | 72.699 | 65.50 | 8 | 3.175 |
SS 347 Forged Fittings vs SS 321 Forged Fittings
SS 347 Forged Fitting
- Stabiliser: Niobium (Columbium)
- Max Continuous Temp: ≈ 900°C
- Rockwell Hardness: ≤ 201 HB max
- Weld Metal: Cleaner, fewer nitride inclusions
SS 321 Forged Fitting
- Stabiliser: Titanium
- Max Continuous Temp: ≈ 800°C
- Rockwell Hardness: ≤ 217 HB max
- Weld Metal: Standard, wider availability
ASTM A182 F347 Forged Fittings Price List Factors
◆End Connection (SW / Threaded)
◆Size & Pressure Class
◆Fitting Type
Request today’s SS 347 Forged Fitting priceEx-stock factory rates on standard classes, with no minimum-order penalty for repeat buyers.
Stainless Steel 347 Pipe Coupling HSN Code
Socket Weld / Other
7307 23
Butt-welding & forged fittings
GST Rate
18%
Standard rate on stainless steel fittings
HSN Heading
7307
Tube / pipe fittings of stainless steel
Threaded / Screwed
7307 22
Threaded elbows, bends & sleeves
AISI 347 Forged Plug Chemical Composition
IronFe
Balance
SiliconSi
≤ 0.75%
ChromiumCr
17.00–19.00%
SulphurS
≤ 0.030%
Niobium + TantalumNb+Ta
10×C min – 1.10%
NickelNi
9.00–13.00%
PhosphorusP
≤ 0.045%
CarbonC
≤ 0.08%
ManganeseMn
≤ 2.00%
SUS 347 Screwed Fittings Mechanical Properties
Hardness
≤ 201 HB / 92 HRB
Wear Resistance
Elongation (50mm)
≥ 35%
Ductility
Tensile Strength
≥ 515 MPa
Load Bearing
Yield Strength (0.2%)
≥ 205 MPa
Design Limit
SUS 347 Branch Fitting Pressure Rating
Class 9000#
9000 psi
Severe service, small bore only, 1/8″–1″
Class 3000#
3000 psi
Most common — process & utility piping
Class 2000#
2000 psi
Light-duty screwed lines, 1/8″–4″
Class 6000#
6000 psi
High-pressure steam & instrumentation, 1/8″–2″
Application Of Stainless Steel 347 Branch Fittings
Stainless Steel 347 Forged Fittings Supplier in India built for high-temperature welded service
Furnace Radiant Tube Fittings
Nuclear & Power Plant Piping
Petrochemical Cracking Units
Marine Boiler Piping
Refinery High-Temperature Headers
Superheater & Reheater Piping
Nitric Acid Processing Lines
Aerospace Structural Ducting
UNS S34700 Socket Weld Fittings Test Certificates
Positive Material Identification Report
Every 347 SS Screwed Fittings and forged component dispatch is issued with a PMI report confirming grade chemistry on the shop floor, traceable to the original heat number and cross-checked against ASTM A182 limits before it leaves the factory.
Stainless Steel 347 Forged Fittings Delivered Weekly To The Following Countries
| Export To | Countries | Continent | Shipping Time (Days) | Ports |
|---|---|---|---|---|
| Tanzania | Africa | 22 | Dar es Salaam | |
| Sri Lanka | Asia | 9 | Colombo | |
| Vietnam | Asia | 10 | Ho Chi Minh | |
| Bahrain | Asia | 8 | Khalifa Bin Salman | |
| Kenya | Africa | 20 | Mombasa |
Monthly Delivery Of Stainless Steel 347 Forged Fittings To Below Countries
| Export To | Countries | Continent | Shipping Time (Days) | Ports |
|---|---|---|---|---|
| Turkey | Asia | 20 | Istanbul | |
| New Zealand | Australia | 24 | Auckland | |
| Canada | North America | 34 | Vancouver | |
| Chile | South America | 40 | Valparaiso | |
| Poland | Europe | 27 | Gdansk |
WNR 1.4550 Forged Tee Material Testing
Third-Party Inspection
TPI available on request for large export orders
Dimensional Check
Bore, wall thickness & thread gauge against drawing
Weld-Metal Corrosion Test
Verifies niobium stabilization holds up after welding, per ASTM A262
PMI Testing
Positive Material Identification on every lot to confirm grade
Visual & Surface Check
Screened for forging laps, cracks & finish defects
Hardness Test
Confirms annealed condition meets ASTM A182 limits
347 Stainless steel Forged Union Documentation
Commercial Invoice
PO-matched invoice with HSN & GST breakup
Every Order
Certificate Of Origin
For customs clearance & import duty processing
Export Orders
NABL Lab Report
Independent chemistry & mechanical test results
On Request
Packing List
Itemised piece count, weight & carton breakup
Every Order
AISI 347 Forged Reducer Packaging
Custom Labelling
PO number, class & heat number marked per buyer requirement
VCI Export Wrap
Corrosion-inhibiting wrap for long-transit sea freight
Poly Bag & Box
Standard retail-ready packing for small & trial orders
Wooden Pallet / Crate
For bulk quantities & container-load shipments
Placing A Bulk Order For Your Project?Share your BOQ and get factory pricing, MTC 3.1, and dispatch within the week.
Frequently Asked Questions
Why choose SS 347 over 321 for welded pressure parts?
Niobium gives more consistent weld metal than titanium across multiple passes, which is why 347 is specified for pressure retaining, field welded headers.
Is WNR 1.4550 the same as ASTM F347?
Yes. WNR 1.4550 and ASTM A182 F347 refer to the same niobium stabilized alloy just under different regional standards.
What is the maximum service temperature for a 347 forged fitting?
347 forged fittings handle up to roughly 815°C continuous and 900°C intermittent, suitable for superheater and reheater service.
Do you supply 347 SS Screwed Fittings in small trial quantities?
Yes. Ganpat Industrial supplies from small trial lots to full container loads, based on your size, class, and quantity requirement.
We Collaborate With Traders In The Following Locations
| Regions | Country |
|---|---|
| Southeast Asia | Vietnam, Thailand, Indonesia |
| Sub-Saharan Africa | Nigeria, Kenya, Ghana |
| Oceania | Australia, New Zealand, Fiji |
| North America | USA, Canada, Mexico |
| East Asia | China, Japan, South Korea |
| Gulf & Middle East | UAE, Saudi Arabia, Qatar |
| South America | Brazil, Chile, Ecuador |
| Central America | Panama, Costa Rica, Guatemala |
| South Asia | India, Sri Lanka, Bangladesh |
| North Africa | Egypt, Tunisia, Libya |
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA