Why Buyers Choose Our ASTM A815 UNS S31803 Pipe Fittings

Mill-Direct Sourcing

No middle-man markup on SA815 S31803 heats

Full Traceability

Heat number to MTC in one document set

Fast Export Packing

Dispatch-ready crating for 100+ countries

Approved Vendor

Listed with major EPC & oil & gas majors

Rapid Response

Priced quote for A815 S31803 within hours

ASTM A815 UNS S31803 Pipe Fittings Technical Data

  • 1Also billed as: SA815 WP-S UNS S31803, ASME SA815 UNS S31803, A815 Gr S31803
  • 2Grade family: 22Cr duplex stainless steel, trade name Duplex 2205
  • 3Size range: 1/2″ NB to 48″ NB, SCH 5S to XXS
  • 4Fitting types: Elbow, Tee, Reducer, Cap, Stub End, Collar, Cross, Lap Joint, Bend
  • 5Certification: EN 10204 3.1 / 3.2 MTC, PMI & NACE MR0175 on request
ASTM A815 UNS S31803 Pipe Fittings Specification
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Ganpat Industries offers a collection of ASTM A815 UNS S31803 pipe fittings for tough duplex piping systems, in the oil & gas, chemical and marine industries. Our selection includes the ASTM A815 UNS S31803 elbow, SA815 UNS S31803 tee, A815 S31803 reducer and ASME SA815 S31803 pipe cap. Each of these items is made with tight dimensional limits following ASME B16.9 and MSS SP-43 rules.

Duplex Stainless Steel • Buttweld Fittings

ASTM A815 UNS S31803 Pipe Fittings – Duplex 2205 Elbow, Tee & Reducer Supplier

Stockist and exporter of SA815 UNS S31803 and ASME SA815 S31803 seamless & welded buttweld fittings, ready in SCH 10S to XXS, with 3.1 MTC and 48-hour dispatch on standard sizes.

  • ✓ASTM A815 / ASME SA815
  • ✓PMI + NDT Tested
  • ✓EN 10204 3.1 & 3.2
  • ✓NACE MR0175 Available
  • ✓Global Export Ready
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Custom Size ASME SA815 S31803 Fittings Manufacturer in India in Seamless and Welded Form

ASTM A815 UNS S31803 Pipe Fittings Specification

ASTM A815 UNS S31803 Elbow Governing Standard

  • ASTM A815 / ASME SA815
  • UNS S31803 (Duplex 2205)
  • Dimensions: ASME B16.9 & B16.28

SA815 UNS S31803 Tee Available Sizes

  • Seamless: 1/2″ – 24″
  • Welded: 1/2″ – 48″ / custom
  • Schedule: SCH 5S to XXS

A815 S31803 Reducer Manufacturing Route

  • Seamless / Welded / Fabricated
  • Hot forming & cold sizing
  • MSS SP-43, SP-75, SP-79, SP-95

SA815 WP-S UNS S31803 Elbow Bend / Angle Options

  • 22.5°, 30°, 45°, 60°, 90°, 180°
  • Bend radius: 1D, 3D, 5D, 6D, 8D, 10D

ASTM A815 Gr S31803 Stub End Physical Properties

  • Density: 7.80 g/cm³
  • Melting range: 1350–1400°C
  • Magnetic (ferromagnetic phase present)

ASME SA815 S31803 Pipe Cap Surface Finish

  • Mill / Pickled / Polished
  • Black & bright annealed on request

ASME SA815 UNS S31803 Pipe Bend Testing Offered

  • PMI (positive material ID)
  • Ferrite content / IGC test
  • Radiography & ultrasonic
  • Hydrostatic test

ASTM A815 S31803 Lap Joint Stub Ends Documentation

  • EN 10204 3.1 / 3.2 MTC
  • Certificate of origin
  • Third-party inspection report

A815 UNS S31803 Cross Packing

  • Wooden crates / pallets
  • Bundled with end caps
  • Export-worthy fumigated boxes

ASTM A815 UNS S31803 Elbow Weight Chart

Nominal Sizes Weight In KG (Kilogram)
26 124.74
24 107.95
22 89.36
18 57.15
16 45.36
14 36.29
12 28.12
10 19.5
6 5.44
5 3.4
4 2.04
3 1.19
2 0.37
1.1/2 0.18
1 0.11
1/2 0.04

Application of ASME SA815 UNS S31803 Pipe Bend

Offshore Oil & Gas

Seawater Desalination

Chemical Processing

Marine & Shipbuilding

Pulp & Paper Mills

Pressure Vessels

Heat Exchangers

Power Generation

 

Purchase ASTM A815 Gr S31803 Elbow As Per ANSI B16.9 With 100% Radiography Test Report

ASTM A815 UNS S31803 Elbow Dimensions

Reliable ASTM A815 UNS S31803 Pipe Fittings Supplier in India following ASME dimensional standards

ASTM A815 UNS S31803 Elbow Dimensions

Sizes Outside Daimeter of (D) 45 Deg
(Long Radius)
Center-End Of
(B)		 90 Deg
(Long Radius)
Center-End Of
(A)
28 711 438 1067
26 660 406 991
24 610 381 914
20 508 318 762
18 457 286 686
16 406.4 254 610
12 323.8 190 457
10 273 159 381
8 219.1 127 305
6 168.3 95 229
4 114.3 64 152
3 88.9 51 114
2 60.3 35 76
1 33.4 22 38
3/4 26.7 19 38
1/2 21.3 16 38

ASTM A815 UNS S31803 Delivered Weekly to the Following Countries

Export To Continent Shipping Time Port
Indonesia Asia 9 Days Belawan
Nigeria Africa 30 Days Calabar
Colombia South America 45 Days Barranquilla

Types of ASTM A815 UNS S31803 Pipe Fittings

ASTM A815 UNS S31803 Elbow
ASTM A815 UNS S31803 Elbow

90° / 45° LR & SR

SA815 UNS S31803 Tee
SA815 UNS S31803 Tee

Equal / Reducing

A815 S31803 Reducer
A815 S31803 Reducer

Concentric / Eccentric

ASME SA815 S31803 Pipe Cap
ASME SA815 S31803 Pipe Cap

Butt-Weld End Cap

ASTM A815 Gr S31803 Stub End
ASTM A815 Gr S31803 Stub End

MSS SP-43

SA815 S31803 Collar
SA815 S31803 Collar

Coupling Type

A815 UNS S31803 Cross
A815 UNS S31803 Cross

Equal 4-Way

ASTM A815 S31803 Lap Joint Stub Ends
ASTM A815 S31803 Lap Joint Stub Ends

Type A / B

ASME SA815 S31803 Pipe Cap Price List

HSN / HS Code

7307.23

Stainless steel buttweld fittings

Base Alloy Surcharge

Ni + Mo Linked

Revised with LME monthly

MOQ

No Minimum

Single-piece billing available

Lead Time

2–4 Weeks

Ex-stock in common sizes

•Fitting type & wall schedule
•Seamless vs welded route
•PMI, NACE & 3.2 certification
•Order quantity & delivery port

Need a size-wise price sheet?Share your NB, schedule and fitting list – get a firm quote on ASME SA815 S31803 fittings same day.

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Heat Treatment of A815 S31803 Reducer

Solution Annealing

1020–1100°C

Rapid Water Quench

Post-Weld Heat Treatment

550–750°C

Weld Zone Relief

Stress Relief

650°C

Post-Fabrication

ASTM A815 UNS S31803 Fittings Documentation

Verified ASTM A815 UNS S31803 Pipe Fittings Supplier in India offering 3.1 MTC certificates

Mill Test Certificate

Heat-wise chemistry & mechanical results for A815 S31803

EN 10204 3.1 / 3.2

Raw Material Test Certificate

Traceable back to the parent billet / plate heat number

Heat Traceable

Third Party Inspection Report

Witnessed by SGS, BV, TUV or Lloyd’s on request

TPI

Radiography Test Report

100% RT on weld seams of welded SA815 S31803 fittings

RT / UT

PMI Test Report

Positive material identification confirming UNS S31803

PMI

NACE MR0175 / ISO 15156

Sour-service compliance for oil & gas orders

On Request

Monthly Delivery of ASTM A815 UNS S31803 to Below Countries

Well-known ASTM A815 UNS S31803 Pipe Fittings Manufacturer in India exporting to 40+ countries

Export To Continent Shipping Time Port
Philippines Asia 14 Days Zamboanga
Argentina South America 45 Days La Plata

SA815 UNS S31803 Tee Chemical Composition

Carbon C
0.030 max
Manganese Mn
2.00 max
Silicon Si
1.00 max
Phosphorus P
0.030 max
Sulphur S
0.020 max
Chromium Cr
21.0 – 23.0
Nickel Ni
4.5 – 6.5
Molybdenum Mo
2.5 – 3.5
Nitrogen N
0.08 – 0.20
Iron Fe
Balance

Bar length is illustrative (scaled to max value shown), not to a linear percentage axis.

ASTM A815 Gr S31803 Stub End Mechanical Properties

Tensile Strength

620 MPa

90 ksi min

Yield Strength (0.2%)

450 MPa

65 ksi min

Elongation

25% min

in 2 in / 50mm

Hardness

290 HBW

31 HRC max

ASTM A815 S31803 Lap Joint Stub Ends Equivalent Grades

USA – ASTM / UNS
  • ASTM / ASME A815 & SA815
  • UNS S31803
  • Trade name: Duplex 2205
Germany – DIN / EN
  • Werkstoff Nr. 1.4462
  • EN 10088 / EN 10253-2
  • X2CrNiMoN22-5-3
Japan – JIS
  • JIS G3468 / SUS329J3L
  • KS D3757 (Korea) – similar range

Difference Between Seamless vs Welded A815 S31803 Fittings

Seamless A815 S31803
  • No weld seam – single-piece formed
  • Preferred for high-pressure, sour & critical lines
  • Best up to 24″ NB
  • Slightly higher unit cost per piece
  • Ideal for NACE MR0175 sour-service POs
VS
Welded A815 S31803
  • Plate rolled & longitudinally welded, 100% RT tested
  • Economical for large-bore, high-quantity orders
  • Available up to 48″ NB and custom
  • Faster mill lead time on big diameters
  • Ideal for desalination & large process headers

How to Order ASME SA815 S31803 Fittings – Step by Step

1. Send Enquiry

Share NB, schedule, fitting list & standard

2. Technical Check

Engineer confirms spec, size & MTC needs

3. Firm Quotation

Size-wise priced offer within same day

4. Production & Testing

PMI, RT, hydro & dimensional inspection

5. Pack & Dispatch

Export crating with MTC & shipping docs

Ready to order ASTM A815 UNS S31803 fittings?Attach your piping BOM – sizes, schedule & quantity – and we quote back same day.

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Frequently Asked Questions

What is ASTM A815 UNS S31803?

It is the U.S. specification covering wrought duplex stainless steel pipe fittings – elbows, tees, reducers and caps – in grade UNS S31803, widely known as Duplex 2205.

Is UNS S31803 the same as S32205?

Both sit in the 2205 duplex family; S32205 has a tighter nitrogen band, so mills frequently dual-certify one heat as S31803/S32205 on a single MTC.

What sizes are available in A815 S31803 fittings?

Seamless fittings run 1/2″ to 24″ and welded fittings 1/2″ up to 48″, across SCH 5S to XXS wall thickness.

What pressure class do SA815 UNS S31803 fittings support?

Buttweld fittings in this grade are commonly matched to Class 150 through Class 2500 piping systems, subject to design temperature.

Which industries specify ASME SA815 S31803 fittings?

Offshore oil & gas, seawater desalination, chemical processing and marine piping specify this grade for its chloride pitting resistance.

What documents come with A815 UNS S31803 fittings?

Standard supply includes EN 10204 3.1 mill test certificates, with 3.2 third-party witness and NACE MR0175 compliance on request.

Discover Our Ready Inventory in These Cities

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Riyadh (Saudi Arabia) Houston (USA)
Al Khobar (Saudi Arabia) Indiana (USA)

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Duplex 2205 elbows, tees, reducers & stub ends – certified, tested and packed for global despatch.

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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