What Separates a Trusted Stainless Steel 321 Forged Fitting From a Great One ? Ask Ganpat Industrial’s Buyers

PMI-Checked, Every Lot

Grade confirmed before packing — no wrong-alloy surprises on site

Rated For High Temperature

Sensitization-free service up to 800°C intermittent duty

Quote In 24 Hours

Standard classes ex-stock — container-ready inside the week

Titanium-Stabilized Heats

Every forging traced to a Ti-stabilized 321 heat, not mixed scrap melt

One PO, Full Fitting Range

Elbow • Tee • Union • Coupling • Branch — single dispatch

Stainless Steel 321 Forged Fittings Abstract

  • 1Stabilizer: Titanium — prevents chromium carbide sensitization after welding
  • 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 800°C–900°C intermittent
  • 5Core Grades: UNS S32100, WNR 1.4541, F321, SUS 321
  • 6End Connections: Socket Weld & Screwed / Threaded (NPT, BSPT)
Stainless Steel 321 Forged Fittings
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Ganpat Industrial Corporation manufactures its Stainless Steel 321 Forged Fittings by hot-forging certified UNS S32100 billet stabilized with titanium, then finishing each piece in-house to hold ASME B16.11 tolerances across Socket Weld and Screwed variants. Because titanium bonds with carbon ahead of chromium, the alloy stays free from intergranular attack even through multiple welding passes which is precisely why process engineers specify 321 forgings over 304 or 316 grades on high-temperature lines. This stabilized grain structure is what keeps turbine exhaust ducting, furnace piping, boiler headers, and high-temperature chemical loops performing reliably long after fabrication is complete. Based in Mumbai, Ganpat Industrial Corporation has spent more than 25 years manufacturing and exporting stainless steel piping components, delivering fully tested and documented consignments to customers across India, the UAE, Europe, and the Americas.

Mumbai · Forging Manufacturer & Exporter

Stainless Steel 321 Forged Fittings Engineered For Heat, Not Just Pressure

Refineries, power plants, furnace skids, and exhaust systems in India, the UAE, and Europe rely on Ganpat Industrial’s Stainless Steel 321 Forged Fittings whenever a line runs hot, cycles repeatedly, or faces constant vibration.

  • ✓ISO 9001:2015
  • ✓ISO 14001:2015
  • ✓OHSAS 18001:2007
  • ✓PED Certified
  • ✓Petrofac Approved
 
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View Specification

 

ASTM A182 F321 Forged Elbow and Tee Manufacturer in India With Pressure Class 2000 to 9000 LBS

Specification Of Stainless Steel 321 Forged Fittings

SUS 321 Forged Tee Documentation Route

  • Mill Test Certificate 3.1
  • Dimensional Report
  • Packing List
  • Certificate Of Origin

UNS S32100 Screwed Fittings Production Route

  • Hot Die Forging
  • CNC Bore Machining
  • Thread Rolling / Tapping
  • Solution Annealing

321 SS Forged Union Manufacturing Origin

  • Made In India
  • Mumbai Forge Shop
  • Batch Traceable
  • Export Documentation Ready

INOX 321 Forged Elbow Stabilization Check

  • Ti ≥ 5(C+N)
  • Intergranular Test
  • Sensitization Screening
  • PMI Verified

SS 321 Threaded Fittings Size & Pressure Class Range

  • 1/8″ to 4″ NB
  • Class 2000# to 9000#
  • Metric & Imperial threads
  • Custom bore on drawing

AISI 321 Pipe Coupling Export Packing

  • Poly-Wrapped & Boxed
  • Wooden Pallet / Crate
  • Sea-Worthy VCI Pack
  • PO-Wise Labelling

321 Stainless steel Branch Fitting Material Grade Traceability

  • UNS S32100
  • WNR 1.4541
  • ASTM A182 F321
  • Heat-Number Marked

WNR 1.4541 Threaded Elbow Surface & End Finish

  • Bright Machined Bore
  • Pickled & Passivated
  • Beveled / Socket Ends
  • NPT / BSPT Threads

ASTM A182 F321 Socket weld Fittings Governing Standard

  • ASME B16.11
  • MSS SP-79 / SP-83
  • MSS SP-97 (Branch)
  • ASTM A182

Pressure Class Rating Of UNS S32100 Screwed Fittings

Class 6000#

6000 psi

High-pressure steam & instrumentation, 1/8″–2″

Class 2000#

2000 psi

Light-duty screwed lines, 1/8″–4″

Class 9000#

9000 psi

Severe service, small bore only, 1/8″–1″

Class 3000#

3000 psi

Most common — process & utility piping

 

Supply WNR 1.4541 Socketweld and Threaded Fittings As Per ASME B16.11 Tested With Macro and PMI Test

321 Stainless Steel Screwed Fittings Material Testing

Every batch from our Stainless Steel 321 Forged Fittings Supplier in India comes tested and certified

PMI Testing

Positive Material Identification on every lot to confirm grade

Intergranular Corrosion Test

Verifies titanium stabilization per ASTM A262

Dimensional Check

Bore, wall thickness & thread gauge against drawing

Hardness Test

Confirms annealed condition meets ASTM A182 limits

Visual & Surface Check

Screened for forging laps, cracks & finish defects

Third-Party Inspection

TPI available on request for large export orders

Different Types Of SUS 321 Forged Fittings

SS 321 Hex Bushing
SS 321 Hex Bushing

Reducing

321 SS Forged Union
321 SS Forged Union

Screwed

WNR 1.4541 Street Elbow
WNR 1.4541 Street Elbow

M&F Threaded

SUS 321 Forged Tee
SUS 321 Forged Tee

Equal Bore

UNS S32100 Forged Cap
UNS S32100 Forged Cap

Class 6000

INOX 321 Forged 45 Degree Elbow
INOX 321 Forged 45° Elbow

Socket Weld

321 Stainless Steel Branch Fitting
321 Stainless Steel Branch Fitting

MSS SP-97

AISI 321 Pipe Coupling
AISI 321 Pipe Coupling

Full / Half

WNR 1.4541 Forged Plug
WNR 1.4541 Forged Plug

BSPT

ASTM A182 F321 Forged Cross
ASTM A182 F321 Forged Cross

Class 3000

INOX 321 Forged Elbow
INOX 321 Forged Elbow

90° SW

SUS 321 Half Coupling
SUS 321 Half Coupling

SP-79

Need A Custom 321 Fitting Type Or Class?Share your drawing — get a factory-price quote within 24 hours.

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SS 321 Forged Reducer Test Certificates

3.1MTC

Mill Test Certificate 3.1

Every WNR 1.4541 Threaded Elbow and forged fitting dispatch is issued with an EN 10204 3.1 Mill Test Certificate, traceable to the original heat number and cross-checked against ASTM A182 chemistry and mechanical limits before it leaves the factory.

TraceabilityHeat & batch number
StandardEN 10204 / ASTM A182
IssuedWith every dispatch

ASTM A182 F321 Forged Plug Dimension Chart

Check our Stainless Steel 321 Forged Fittings Supplier in India dimension chart to pick the right size and class

NPS OD (mm) Wall Thk (T) (mm) Sch LR 45° C/F (B) (mm) LR 45° Weight (kg) LR 90° C/F (A) (mm) LR 90° Weight (kg) SR 90° C/F (A) (mm) SR 90° Weight (kg)
12″ 323.9 9.52 / 12.70 STD / XS 190.0 26.6 / 35.0 457.0 53.1 / 70.0 305.0 35.4 / 46.7
1″ 33.4 3.38 / 4.55 STD / XS 22.2 0.09 / 0.11 38.1 0.15 / 0.19 25.4 0.11 / 0.14
20″ 508.0 9.52 / 12.70 STD / XS 318.0 85.0 / 112.5 762.0 140.0 / 186.0 508.0 93.5 / 124.0
3/4″ 26.7 2.87 / 3.91 STD / XS 11.1 0.04 / 0.05 28.6 0.08 / 0.11 — —
6″ 168.3 7.11 / 10.97 STD / XS 95.2 5.10 / 7.70 229.0 10.1 / 15.3 152.4 6.80 / 10.2
2-1/2″ 73.0 5.16 / 7.01 STD / XS 44.4 0.73 / 0.91 95.2 1.46 / 1.82 63.5 0.95 / 1.27
16″ 406.4 9.52 / 12.70 STD / XS 254.0 45.0 / 59.0 610.0 89.3 / 118.0 406.0 59.5 / 78.7
1/2″ 21.3 2.78 / 3.73 STD / XS 15.9 0.04 / 0.05 38.1 0.08 / 0.10 — —
5″ 141.3 6.65 / 9.50 STD / XS 79.4 3.40 / 5.00 190.0 6.80 / 10.0 127.0 4.80 / 6.50
1-1/4″ 42.2 3.56 / 4.85 STD / XS 25.4 0.14 / 0.20 47.6 0.28 / 0.39 31.75 0.18 / 0.24
24″ 610.0 9.52 / 12.70 STD / XS 381.0 101.5 / 134.5 914.0 203.0 / 269.0 610.0 135.0 / 179.0
14″ 355.6 9.52 / 12.70 STD / XS 222.0 34.1 / 45.0 533.0 68.1 / 90.0 356.0 45.4 / 60.0
8″ 219.1 8.18 / 12.70 STD / XS 127.0 10.2 / 15.5 305.0 20.4 / 30.9 203.0 13.6 / 20.9
3″ 88.9 5.49 / 7.62 STD / XS 50.8 1.11 / 1.45 114.3 2.18 / 2.86 76.2 1.45 / 1.95
18″ 457.0 9.52 / 12.70 STD / XS 286.0 56.5 / 75.0 686.0 113.0 / 150.0 457.0 75.6 / 100.0
1-1/2″ 48.3 3.68 / 5.08 STD / XS 28.6 0.20 / 0.25 57.1 0.43 / 0.53 38.1 0.26 / 0.35
10″ 273.9 9.27 / 12.70 STD / XS 159.0 18.1 / 24.4 381.0 36.1 / 48.8 254.0 24.1 / 32.5
2″ 60.3 3.91 / 5.54 STD / XS 34.9 0.36 / 0.50 76.2 0.72 / 1.00 50.8 0.50 / 0.68

WNR 1.4541 Threaded Elbow Equivalent Grades

BS (Britain)

  • 321S31
  • BS 3605
  • BS EN 10088

GB (China)

  • 06Cr18Ni11Ti
  • GB/T 14976
  • GB/T 20878

EN / DIN (Europe)

  • WNR 1.4541
  • X6CrNiTi18-10
  • EN 10088-2

IS (India)

  • Grade 321
  • IS 6911
  • IS 1570 (Part 5)

JIS (Japan)

  • SUS 321
  • JIS G4303
  • JIS G3459

ASTM / ASME (USA)

  • A182 F321
  • A312 TP321
  • A213 / A249
  • UNS S32100

Cross-Checking A Grade For An Overseas Order?Send the buyer’s standard — we confirm the matching Ganpat spec sheet.

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INOX 321 Forged Elbow Weight Chart

NPS Dimension A Dimension B Quantity (QTY) Weight (kg)
2″ 2.38 2.97 10 3.55
1/4″ 0.81 0.88 160 0.20
3″ 3.38 4.31 2 10.36
1-1/2″ 2.00 2.44 18 2.38
3/8″ 0.97 1.00 130 0.26
4″ 4.19 5.75 1 23.91
3/4″ 1.31 1.57 50 0.71
1-1/4″ 1.75 2.19 25 1.68
1/2″ 1.12 1.31 100 0.57
2-1/2″ 3.00 3.62 4 6.22
1″ 1.50 1.81 40 1.08

ASTM A182 F321 Socket Weld Fittings vs SS 316 Forged Reducer

SS 321 Forged Fitting
  • Stabiliser: Titanium
  • Max Continuous Temp: ≈ 800°C–900°C
  • Molybdenum Content: Nil
  • Best Suited For: Exhaust, furnace & boiler lines
VS
SS 316 Forged Fitting
  • Stabiliser: None (Mo-alloyed)
  • Sensitization Risk: Above 425°C–870°C
  • Molybdenum Content: 2–3%
  • Best Suited For: Marine & chemical process lines

321 Stainless Steel Branch Fitting Price List Factors

◆Size & Pressure Class
◆Fitting Type
◆End Connection (SW / Threaded)
◆Testing & Certification

Get a live SS 321 Forged Fitting quote todayFactory price, ex-stock on standard classes, and no minimum-order penalty on repeat buyers.

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SUS 321 Forged Tee HSN Code

Stainless Steel 321 Forged Fittings Manufacturer in India ensuring accurate HSN coding on every order

GST Rate

18%

Standard rate on stainless steel fittings

Socket Weld / Other

7307 23

Butt-welding & forged fittings

HSN Heading

7307

Tube / pipe fittings of stainless steel

Threaded / Screwed

7307 22

Threaded elbows, bends & sleeves

AISI 321 Pipe Coupling Chemical Composition

SiliconSi

≤ 0.75%

IronFe

Balance

ChromiumCr

17.00–19.00%

SulphurS

≤ 0.030%

TitaniumTi

5(C+N) min – 0.70%

NickelNi

9.00–12.00%

PhosphorusP

≤ 0.045%

CarbonC

≤ 0.08%

ManganeseMn

≤ 2.00%

321 SS Forged Union Mechanical Properties

Hardness

≤ 217 HB / 96 HRB

Wear Resistance

Elongation (50mm)

≥ 35%

Ductility

Tensile Strength

≥ 515 MPa

Load Bearing

Yield Strength (0.2%)

≥ 205 MPa

Design Limit

Application Of Stainless Steel 321 Forged Fittings

Furnace & Heat-Treatment Lines

Boiler & Power Plant Piping

Aerospace Exhaust Ducting

Automotive Exhaust Manifolds

High-Temperature Chemical Loops

Refinery Process Piping

Marine Engine Exhaust Systems

High-Pressure Steam Headers

Stainless Steel 321 Forged Fittings Delivered Weekly To The Following Countries

Export To Countries Continent Shipping Time (Days) Ports
UAE Asia 7 Jebel Ali
Saudi Arabia Asia 8 Dammam
Qatar Asia 7 Hamad
Kuwait Asia 9 Shuwaikh
Oman Asia 6 Sohar

 
 

Monthly Delivery Of Stainless Steel 321 Forged Fittings To Below Countries

Export To Countries Continent Shipping Time (Days) Ports
USA North America 32 Houston
United Kingdom Europe 26 Felixstowe
Germany Europe 28 Hamburg
Australia Australia 22 Fremantle
Brazil South America 36 Santos

UNS S32100 Forged Elbow 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

Packaging Of WNR 1.4541 Threaded Fittings

1
Custom Labelling

PO number, class & heat number marked per buyer requirement

2
VCI Export Wrap

Corrosion-inhibiting wrap for long-transit sea freight

3
Poly Bag & Box

Standard retail-ready packing for small & trial orders

4
Wooden Pallet / Crate

For bulk quantities & container-load shipments

Buying In Bulk For A Project?Send your BOQ — factory price, MTC 3.1, dispatch same week.

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Frequently Asked Questions

Why choose SS 321 over 304 or 316 for hot piping?

Titanium in SS 321 binds carbon during welding, preventing the intergranular corrosion that causes 304 or 316 fittings to sensitize and crack under sustained heat.

Is a WNR 1.4541 Threaded Elbow the same as ASTM F321?

Yes. WNR 1.4541 and ASTM A182 F321 refer to the same titanium-stabilized alloy just under different regional standards.

What is the maximum service temperature for a 321 forged fitting?

321 forged fittings handle up to ~800°C continuous and 900°C intermittent higher than standard 304 or 316 grades.

What is the minimum order quantity?

Ganpat Industrial ships anything from a small trial batch to a full container load, with no strict minimum order quantity.

Sales Representatives Across Various Continents

Continents Country
Australia New Zealand, Fiji, Samoa, Papua New Guinea
North America Canada, Mexico, United States, Cuba
South America Brazil, Peru, Argentina, Colombia, Chile
Asia India, Japan, South Korea, Indonesia, Saudi Arabia, Iran
Africa Ethiopia, Kenya, Nigeria, South Africa, Ghana, Egypt
Europe Germany, France, UK, Italy, Spain, Poland, Ukraine

Need Stainless Steel 321 Forged Fittings On Your Drawing?

Manufacturer & Exporter based in Mumbai — serving India, the UAE, Europe and the Americas with ex-stock classes and custom sizing.

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ganpat industrial corporation

6 Reasons to choose Ganpat Industrial Corporation

  1. Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
  2. Stockholder and importer of Ferrous and non ferrous metals.
  3. Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
  4. Marine grade steel at lowest price in Mumbai.
  5. Compare Price per KG in India and China.
  6. Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA