Discover why buyers trust our ASTM A182 UNS S31803 forged fittings
Duplex Mill-Direct Billets
22% Cr + 3% Mo forgings, traceable to heat number
One Enquiry, Full Range
Elbow • Tee • Union • Coupling • Plug – single PO
Sour-Service Grade
PREN ≥ 35 • NACE MR0175 heats on request
100% PMI and Hydro Tested
Every batch checked before it leaves the forge shop
Quote In 24 Hours
Ready stock on NPT and socket-weld sizes – ships same week
UNS S31803 Forged Fittings Overview
- 1Type: Forged, Threaded, Socket Weld and Screwed Fittings
- 2Grade: UNS S31803 and UNS S32205 (Duplex 2205)
- 3Class: 2000 LBS • 3000 LBS • 6000 LBS • 9000 LBS
- 4Size Range: 1/8″ NB to 4″ NB • per ASME B16.11
- 5Standards: ASTM A182 / ASME SA182, ASME B16.11, MSS SP-79
- 6Origin: Indian origin • European origin • Japanese origin

Or call our Mumbai office: +91 22 6743 7134 • Same-week dispatch on ready stock sizes
Mumbai · Duplex Steel UNS S31803 Forged Fittings Manufacturer India
S31803 Duplex Forged Fittings Built For Sour Wells, Offshore Lines And Chloride Duty Piping
Ganpat Industrial forges and supplies ASTM A182 / ASME SA182 UNS S31803 and UNS S32205 Forged Fittings for buyers running oil and gas wellheads, desalination trains, offshore platforms and chemical plants across India, the UAE and the Middle East.
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓OHSAS 18001:2007
- ✓PED Certified
- ✓NACE MR0175 On Request
ASME SA182 S32205 Socket Weld Elbow Manufacturer in India With MTC
ASTM A182 UNS S31803 Forged Fittings Specification
S31803 Forged Elbow Material Grade
- UNS S31803
- UNS S32205
- ASTM A182 F51
- ASTM A182 F60
SA182 S31803 Fitting Class
- Class 2000 LBS
- Class 3000 LBS
- Class 6000 LBS
- Class 9000 LBS
Threaded Fittings End Connection
- NPT Female Thread
- BSPT Thread
- Socket Weld Bore
- Plain / Screwed End
S32205 Forged Fittings Size Range
- 1/8″ NB – 4″ NB
- DN 6 – DN 100
- Per ASME B16.11
- Custom bore on drawing
Duplex Fittings Surface Finish
- Natural Forged Finish
- Pickled and Passivated
- Black / Bright Finish
- Per ASTM A380
A182 F51 Production Route
- Hot Die Forging
- CNC Machining
- Threading and Tapping
- Solution Annealing
Governing Standard
- ASTM A182 / ASME SA182
- ASME B16.11
- MSS SP-79 / SP-97
- ASME B1.20.1 (Threads)
Duplex Forged Fittings Documentation
- Mill Test Certificate 3.1
- NABL Lab Report
- Certificate Of Origin
- Packing List
UNS S31803 Fitting Origin
- Indian Origin
- European Origin
- Japanese Origin
- Traceable To Heat Number
Need A Custom Duplex Fitting On Drawing?Share your GA drawing – get a factory-price quote within 24 hours.
Discover Custom ASTM A182 F51 UNS S31803 Threaded Reducer and Tee For High Pressure Environment
A182 UNS S32205 Branch Fitting Pressure Rating
| Fitting Class | CWP (psi) | CWP (bar) | Typical End Type |
|---|---|---|---|
| 2000 LBS | 2000 | 137 | Threaded (NPT) |
| 3000 LBS | 3000 | 206 | Threaded / Socket Weld |
| 6000 LBS | 6000 | 413 | Threaded / Socket Weld |
| 9000 LBS | 9000 | 620 | Socket Weld |
Application Of ASME SA182 S32205 Threaded Pipe Fittings
Oil and Gas Wellhead Piping
Offshore and Subsea Pipelines
Seawater Desalination Plants
Chemical and Fertilizer Units
Pulp and Paper Bleach Plants
Marine and Shipbuilding Piping
Sour Gas / H₂S Processing
Seawater Cooling Systems
SA182 UNS S31803 Pipe Coupling Size Chart
Precise thread and socket-weld dimensions for every size – ASTM A182 UNS S31803 Forged Fittings supplier in India.
| NPS (Inch) | Outside Dia. (mm) | NPT Thread Length (mm) | Socket Depth – Class 3000 (mm) | Socket Depth – Class 6000 (mm) |
|---|---|---|---|---|
| 1/8″ | 10.3 | 9.9 | 9.5 | – |
| 1/4″ | 13.7 | 11.0 | 11.2 | 12.7 |
| 3/8″ | 17.1 | 11.7 | 11.2 | 12.7 |
| 1/2″ | 21.3 | 14.0 | 12.7 | 14.3 |
| 3/4″ | 26.7 | 14.7 | 14.3 | 15.9 |
| 1″ | 33.4 | 17.3 | 15.9 | 17.5 |
| 1¼″ | 42.2 | 18.0 | 15.9 | 19.1 |
| 1½″ | 48.3 | 18.3 | 17.5 | 19.1 |
| 2″ | 60.3 | 20.0 | 19.1 | 22.4 |
| 2½″ | 73.0 | 24.6 | 22.4 | 25.4 |
| 3″ | 88.9 | 26.4 | 25.4 | 28.6 |
| 4″ | 114.3 | 30.0 | 28.6 | 33.4 |
Types Of ASTM A182 UNS S32205 Forged Fittings

SA182 S31803 Threaded Fittings
NPT

ASME SA182 UNS S32205 Socket Weld Fittings
Class 3000/6000

A182 S31803 Screwed Fittings
BSPT

ASTM A182 F51 UNS S31803 Threaded Elbow
90° / 45°

A182 UNS S32205 Branch Fitting
Outlet

ASTM A182 Gr S31803 Forged Elbow
MSS SP-79

SA182 UNS S32205 Forged Tee
Equal / Reducing

ASME SA182 S31803 Pipe Coupling
Full / Half

ASTM A182 S32205 Forged Reducer
Concentric

SA182 UNS S31803 Forged Union
Ball Seat

ASTM A182 Gr S32205 Threaded Pipe Fittings
MSS SP-97

ASME SA182 S32205 Forged Plug
Hex / Round
Looking For Elbow, Tee, Union Or Plug In One Shipment?We consolidate mixed-type orders on a single test certificate.
ASTM A182 Gr S31803 Forged Reducer Weight Chart
SA182 UNS S32205 Forged Elbow, Tee and Coupling Piece Weight Chart Supplier in India
| NPS (Inch) | 90° Elbow | Equal Tee | Coupling | Union | Round Plug |
|---|---|---|---|---|---|
| 1/2″ | 0.09 | 0.13 | 0.06 | 0.15 | 0.03 |
| 3/4″ | 0.14 | 0.20 | 0.09 | 0.22 | 0.05 |
| 1″ | 0.24 | 0.34 | 0.15 | 0.38 | 0.08 |
| 1¼″ | 0.38 | 0.52 | 0.22 | 0.58 | 0.12 |
| 1½″ | 0.52 | 0.72 | 0.30 | 0.80 | 0.16 |
| 2″ | 0.88 | 1.18 | 0.48 | 1.30 | 0.26 |
| 2½″ | 1.55 | 2.05 | 0.82 | 2.25 | 0.44 |
| 3″ | 2.40 | 3.15 | 1.25 | 3.45 | 0.68 |
| 4″ | 4.60 | 5.90 | 2.30 | 6.35 | 1.25 |
ASTM A182 S31803 Screwed Fittings Price List and HSN Code
What Buyers Ask Us First
HSN Heading
7307
Tube and pipe fittings of iron or steel
Forged Elbow / Tee / Coupling
7307 99 90
Other stainless steel tube fittings
Threaded / Screwed Fittings
7307 19 / 7307 99
Threaded and other fittings
GST Rate
18%
Standard rate on duplex steel fittings
Get Today’s UNS S31803 Forged Fittings PriceShare size, class and quantity for a factory-direct quote – no minimum order penalty on repeat buyers.
SA182 S32205 Socket Weld Fittings Schedule Chart
A182 F51 Forged Fittings Schedule 40S To 160 Wall Thickness Cross-Reference Manufacturer in India
| NPS (Inch) | Sch 40S Wall (mm) | Sch 80S Wall (mm) | Sch 160 Wall (mm) | Recommended Class |
|---|---|---|---|---|
| 1/2″ | 2.77 | 3.73 | 4.78 | 3000 LBS |
| 3/4″ | 2.87 | 3.91 | 5.56 | 3000 LBS |
| 1″ | 3.38 | 4.55 | 6.35 | 3000 / 6000 LBS |
| 1½″ | 3.68 | 5.08 | 7.14 | 6000 LBS |
| 2″ | 3.91 | 5.54 | 8.74 | 6000 LBS |
| 3″ | 5.49 | 7.62 | 11.13 | 6000 / 9000 LBS |
| 4″ | 6.02 | 8.56 | 13.49 | 9000 LBS |
Working Out Your Line’s Design Pressure?Send us the service temperature – we confirm the right fitting class.
ASTM A182 UNS S32205 Forged Elbow Chemical Composition
Per ASTM A182 / A479 – UNS S31803
Chromium
21.00-23.00%
Nickel
4.50-6.50%
Molybdenum
2.50-3.50%
Nitrogen
0.08-0.20%
Manganese
≤ 2.00%
Silicon
≤ 1.00%
Carbon
≤ 0.030%
Phosphorus
≤ 0.030%
Sulphur
≤ 0.020%
Iron
Balance
ASME SA182 UNS S31803 Forged Tee Mechanical Properties
Solution Annealed Condition
Tensile Strength (MPa)
≥ 620
High Strength
Yield Strength (MPa) 0.2%
≥ 450
Design Limit
Elongation (2 in.)
≥ 25%
Ductility
Hardness
≤ 293 HB / 31 HRC
Wear Resistance
Weekly Delivery Of 254 SMO Pipe Fittings In Below Nations
Expert 254 SMO Pipe Fittings Supplier In India
| Export To | Continent | Port | Shipping Time |
|---|---|---|---|
| Europe | Port Of Antwerp-Bruges | 20-54 Days | |
| North America | Port Of Los Angeles | 30-45 Days | |
| Asia | Port Of Singapore | 11-50 Days |
254 SMO Pipe Fittings Monthly Delivery In Below Countries
| Export To | Continent | Port | Shipping Time |
|---|---|---|---|
| Asia | Port Of Shanghai | 19-23 Days | |
| Europe | Port Of Rotterdam | 20-45 Days | |
| Europe | Port Of Hamburg | 33-34 Days |
Need Mechanical Test Reports With Your Order?Every batch ships with a EN 10204 3.1 test report.
A182 S32205 Threaded Elbow Material Equivalent Chart
ASTM / ASME
- A182 / SA182 F51
- A182 / SA182 F60
- A479 / A995
UNS Designation
- S31803 (Standard 2205)
- S32205 (Improved 2205)
EN / DIN
- 1.4462
- X2CrNiMoN22-5-3
- EN 10222-5
JIS
- SUS329J3L
- JIS G3214
BS
- 318S13
- BS 3059
GB (China)
- 00Cr22Ni5Mo3N
- GB/T 21833
Frequently Asked Questions
What is the difference between UNS S31803 and UNS S32205?
S32205 is a tighter-chemistry version of S31803 with guaranteed Mo and N content, giving a minimum PREN of 35 for higher pitting resistance.
Are these fittings suitable for sour (H₂S) service?
Yes, on request we supply NACE MR0175 / ISO 15156 compliant duplex forged fittings with hardness controlled to ≤ 28 HRC.
What is the minimum order quantity?
Ganpat Industrial supplies from small trial lots to full container loads – share your size and quantity for a factory-direct price.
Do you supply mixed-type orders on one certificate?
Yes, elbow, tee, union, coupling and plug can be consolidated on a single Mill Test Certificate and shipment.
Technical Consultants Are Stationed in the Cities Listed Below to Address All Technical Inquiries.
| Dubai (UAE) | Riyadh (Saudi Arabia) |
| California (USA) | Al Khobar (Saudi Arabia) |
| Abu Dhabi (UAE) | Texas (USA) |
| Dammam (Saudi Arabia) | Indiana (USA) |
| Houston (USA) | Al Jubail (Saudi Arabia) |

