Duplex 2205 Pipe Fittings & Flanges – Forged, Buttweld & Olets in Stock. Full Range of Dimensions, Pressure Classes & International Standards.
Bhavani Industries is a trusted supplier and stockist of premium quality duplex stainless steel products, committed to delivering performance-driven solutions for global industries. Among our most in-demand materials is Duplex Stainless Steel 2205, a nitrogen-enhanced duplex alloy that offers superior strength and corrosion resistance compared to standard austenitic grades. It contains roughly 22% chromium, 5–6% nickel, and 3% molybdenum, giving it excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Our Duplex 2205 components are ideal for demanding applications in chemical processing, offshore structures, and marine environments.
We supply a complete range of Duplex 2205 flanges (including weld neck, slip-on, blind, socket weld, lap joint, threaded), buttweld fittings (elbows, tees, reducers, caps, stub ends), and forged fittings (socket weld and threaded types like elbows, tees, unions, couplings). Additionally, our range includes olets such as weldolet, sockolet, and threadolet — all engineered for high-pressure applications. These products are manufactured in compliance with leading global standards like ASTM A182, A815, A479, and dimensional norms such as ANSI B16.5, B16.9, and B16.11, ensuring high compatibility and performance across systems.
Duplex 2205 delivers twice the yield strength of conventional austenitic stainless steels, with a typical yield strength of 450 MPa and tensile strength up to 620 MPa. The material can withstand temperatures up to 300°C, offering durability even in harsh operating conditions. Product sizes range from ½” NB to 48″ NB for buttweld fittings, flanges, and olets. Forged fittings are available in pressure classes 2000#, 3000#, 6000#, and 9000#. All items undergo rigorous non-destructive testing (NDT), PMI, hydro testing, and visual inspections under our ISO 9001:2015 certified quality system to ensure total reliability and precision.
Duplex Stainless Steel 2205 is widely used in oil & gas exploration, offshore drilling platforms, chemical tankers, pulp & paper industries, heat exchangers, desalination plants, and structural applications. Its high strength, outstanding corrosion resistance (especially to chloride environments), and excellent fatigue performance make it an economical and long-lasting alternative to high nickel alloys and austenitic stainless steels. Additional benefits include lower thermal expansion, high weldability, and resistance to erosion and abrasion, making Duplex 2205 a top-tier choice for critical industrial applications.
Manufacturing & Exporting Duplex Steel 2205 Flanges (WNRF/SORF/Blind), Elbows, Tees, Reducers, Coupling, Union, Bushing, Forged Fittings, Olets (Weldolet, Sockolet, Threadolet, Elbolet) as per ASME B16.5, B16.9, B16.11, MSS SP-44 – Pressure Ratings up to 2500#, Series A & B.
Technical Index
Industrial Duplex Stainless Steel 2205 Specifications
| Material Grade | Duplex Stainless Steel 2205 / 1.4462 / UNS S31803, S32205 |
|---|---|
| Available Product Types | Flanges, Buttweld Fittings, Forged Fittings, Olets |
| Flanges Size Range | ½” (15 NB) to 48” (1200 NB) |
| Class | 150, 300, 600, 900, 1500, 2500, PN6, PN10, PN16, PN25, PN40, PN64 |
| Standard Specifications | ASTM A182, A815 / ASME SA182, SA815 |
| Standards | ASME B16.5, B16.47 Series A & B, B16.48, EN 1092-1, DIN, BS4504, BS10, ISO 7005-1, GOST, JIS B2220, MSS SP-44, API 605 |
| Types | Weld Neck Flange (WNRF), Slip-On Flange (SORF), Socket Weld Flange (SWRF), Threaded Flange, Blind Flange (BLRF), Lap Joint Flange, Ring Type Joint Flange (RTJ), Long Weld Neck Flange, Reducing Flange, Expander Flange, Orifice Flange, Spectacle Blind Flange, Spacer Flange, Paddle Blank, Paddle Spacer, Raised Face (RF), Flat Face (FF), Large Male-Female (LMF), Small Male-Female (SMF), Tongue & Groove |
| Buttweld Fittings Size | ½” NB to 24” NB (seamless), ½” NB to 48” NB (welded) |
| Wall Thickness | SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS |
| Standards | ASME B16.9, MSS SP-75, EN 10253, DIN 2605/2615/2616, ISO 3419, JIS B2312 |
| Types | Elbow (90°, 45°, Long Radius, Short Radius), Tee (Equal & Reducing), Reducer (Concentric & Eccentric), Caps, Stub Ends |
| Forged Fittings Size | ½” NB to 4” NB (Socket Weld & Threaded) |
| Class | Class 2000, 3000, 6000, 9000 (psi) |
| Standards | ASME B16.11, MSS SP-83, MSS SP-95, JIS B2316 |
| Types | 90° Elbow, 45° Elbow, Tee, Cross, Full Coupling, Half Coupling, Pipe Cap, Union, Reducer Insert, Boss, Hex Head Bushing, Hex Head Plug, Square Head Plug, Round Head Plug, Bull Plug, Boss, Outlet, Hex Nipple, Swage Nipple. |
| Olets (Outlet Fittings) Size | Branch Sizes ½” to 24” | Run Pipe Sizes up to 36” (custom) |
| Class | 3000#, 6000#, 9000# |
| Standards | MSS SP-97, ASME B16.11, ANSI, DIN, EN, JIS (custom) |
| Types | Weldolet, Sockolet, Threadolet, Elbolet, Latrolet, Nipolet, Sweepolet, Brazolet |
| End Connection Types | Buttweld, Socket Weld, Threaded (NPT/BSP), Flanged (RF, FF, RTJ), Custom Branch Outlets |
| Testing & Certifications | EN 10204 3.1 & 3.2, NACE MR0175, NACE MR0103, IBR, PMI, Ultrasonic Test, Radiography, Magnetic Particle Inspection |
| Surface Finish Options | Pickled, Passivated, Mirror Finish, Satin Finish, Sandblasted, Coated (Black, Yellow Transparent, Zinc) |
| Manufacturing Capabilities | CNC Machining, Cold/Hot Forming, Beveling, Drilling, Induction Heating, Forging, Custom Fabrication |
| Raw Material Sources | India, Japan, South Korea, USA, Germany, Italy |
| Export Destinations | USA, UAE, Saudi Arabia, Qatar, Kuwait, Oman, Egypt, South Africa, Kenya, Nigeria, Singapore, Malaysia, Australia |
Industrial Duplex Stainless Steel 2205 Standards
| ANSI/ASME B16.47 Flanges | ANSI/ASME B16.36 Flanges | ANSI/ASME B16.5 Flanges | Pr. EN1902-1 Flanges |
| DIN Flanges | JIS Flanges | BS 4504 Flanges | BS 10 Flanges |
| MSS SP-44 Flanges | JIS B2220 Flanges | KS B1503 Flanges | UNI Flanges |
| SABS/SANS 1123 Flanges | AS 2129, AS 4087 Flanges | ISO 9624, ISO 7005-1 Flanges | AWWA Flanges Standard |
| GOST Standard Flanges | API Flanges | AS/ANZ 4331.1 Flanges | Series A Flange |
| Series B Flange | SAE J518 Flanges | GB Flange | Norwegian Standard Flanges |
| ASME B16.11 – Forged Steel Fittings, Socket-Welding and Threaded | BS 3799 – Screwed and Socket-Welding for the Petroleum Industry | MSS SP-79 – Socket-Welding Reducer Inserts | MSS SP-83 – Class 3000 Steel Pipe Unions, Socket-Welding and Threaded |
| MSS SP-95 – Swage(d) Nipples and Bull Plugs | MSS SP-97 – Integrally Reinforced Forged Branch Outlet Fittings | DIN 2986 – Threaded Fittings | DIN 2999 – Pipe Threads for Fittings (British Standard Pipe Threads) |
| ISO 49 – Malleable Iron Fittings, Threaded | ISO 7/1 – Pipe Threads Where Pressure-tight Joints Are Made on the Threads | EN 10241 – Steel Threaded Pipe Fittings | JIS B2316 – Japanese standard for forged pipe fittings. |
| ANSI/ASME B16.9 – Factory-Made Wrought Steel Buttwelding Fittings | ANSI/ASME B16.28 – Wrought Steel Short Radius Elbows and Returns | ANSI/ASME B16.25 – Buttwelding Ends(beval standards) | MSS SP-43 – Wrought and fabricated Butt welding Fittings for Light Wall Applications |
| MSS SP-75 – High Test Wrought Butt welding Fittings | DIN 2616 – Butt welding Pipe Fittings: Reducers | DIN 2617 – Butt welding Pipe Fittings: Caps | DIN28011 – Dished Ends(used in pressure vessels) |
| EN10253-1 Butt-welding Pipe Fittings(Non Alloy Steels) | EN10253-2 Butt-welding Pipe Fittings(Stainless/Alloy Steels) |
Duplex Stainless Steel 2205 International Standards
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 / 2205 | 1.4462 | S31803 / S32205 |
Duplex Steel 2205 Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Duplex Stainless Steel 2205 Mechanical Properties
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Duplex Stainless Steel 2205 Types
Duplex Steel 2205 Industries & Applications
Duplex Stainless Steel 2205 Flange Size Chart
| Nominal Size |
Outside Diameter (OD) |
Min. Thickness (T) |
RF Dia. (R) |
No. of Bolt Holes | Diameter of Holes |
Bolt Circle (BC) |
SO Bore ID (SB) |
WN Bore ID (WB) |
Dia. Hub Base (HB) |
Dia. of Hub Top (HT) |
SO LTH (SL) |
WN LTH (WL) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1⁄2 | 3.50 | 0.38 | 1.38 | 4 | 0.62 | 2.38 | 0.88 | 0.62 | 1.19 | 0.84 | 0.56 | 1.81 |
| 3⁄4 | 3.88 | 0.44 | 1.69 | 4 | 0.62 | 2.75 | 1.09 | 0.82 | 1.50 | 1.05 | 0.56 | 2.00 |
| 1 | 4.25 | 0.50 | 2.00 | 4 | 0.62 | 3.12 | 1.36 | 1.05 | 1.94 | 1.32 | 0.62 | 2.12 |
| 11⁄4 | 4.62 | 0.56 | 2.50 | 4 | 0.62 | 3.50 | 1.70 | 1.38 | 2.31 | 1.66 | 0.75 | 2.19 |
| 11⁄2 | 5.00 | 0.62 | 2.88 | 4 | 0.62 | 3.88 | 1.95 | 1.61 | 2.56 | 1.90 | 0.81 | 2.38 |
| 2 | 6.00 | 0.69 | 3.62 | 4 | 0.75 | 4.75 | 2.44 | 2.07 | 3.06 | 2.38 | 0.94 | 2.44 |
| 21⁄2 | 7.00 | 0.81 | 4.12 | 4 | 0.75 | 5.50 | 2.94 | 2.47 | 3.56 | 2.88 | 1.06 | 2.69 |
| 3 | 7.50 | 0.88 | 5.00 | 4 | 0.75 | 6.00 | 3.57 | 3.07 | 4.25 | 3.50 | 1.12 | 2.69 |
| 31⁄2 | 8.50 | 0.88 | 5.50 | 8 | 0.75 | 7.00 | 4.07 | 3.55 | 4.81 | 4.00 | 1.19 | 2.75 |
| 4 | 9.00 | 0.88 | 6.19 | 8 | 0.75 | 7.50 | 4.57 | 4.03 | 5.31 | 4.50 | 1.25 | 2.94 |
| 5 | 10.00 | 0.88 | 7.31 | 8 | 0.88 | 8.50 | 5.66 | 5.05 | 6.44 | 5.56 | 1.38 | 3.44 |
| 6 | 11.00 | 0.94 | 8.50 | 8 | 0.88 | 9.50 | 6.72 | 6.07 | 7.56 | 6.63 | 1.50 | 3.44 |
| 8 | 13.50 | 1.06 | 10.62 | 8 | 0.88 | 11.75 | 8.72 | 7.98 | 9.69 | 8.63 | 1.69 | 3.94 |
| 10 | 16.00 | 1.12 | 12.75 | 12 | 1.00 | 14.25 | 10.88 | 10.02 | 12.00 | 10.75 | 1.88 | 3.94 |
| 12 | 19.00 | 1.19 | 15.00 | 12 | 1.00 | 17.00 | 12.88 | 12.00 | 14.38 | 12.75 | 2.12 | 4.44 |
| 14 | 21.00 | 1.31 | 16.25 | 12 | 1.12 | 18.75 | 14.14 | 13.25 | 15.75 | 14.00 | 2.19 | 4.94 |
| 16 | 23.50 | 1.38 | 18.50 | 16 | 1.12 | 21.25 | 16.16 | 15.25 | 18.00 | 16.00 | 2.44 | 4.94 |
| 18 | 25.00 | 1.50 | 21.00 | 16 | 1.25 | 22.75 | 18.18 | 17.25 | 19.88 | 18.00 | 2.62 | 5.44 |
| 20 | 27.50 | 1.62 | 23.00 | 20 | 1.25 | 25.00 | 20.20 | 19.25 | 22.00 | 20.00 | 2.81 | 5.62 |
| 22 | 29.50 | 1.75 | 25.25 | 20 | 1.38 | 27.25 | 22.22 | 21.25 | 24.25 | 22.00 | 3.07 | 5.82 |
| 24 | 32.00 | 1.81 | 27.25 | 20 | 1.38 | 29.50 | 24.25 | 23.25 | 26.12 | 24.00 | 3.19 | 5.94 |
Duplex 2205 Buttweld Fittings Dimensions
| NOMINAL PIPE SIZE | ALL FITTINGS | ALL FITTINGS | 180 DEG RETURN BENDS | REDUCERS | ELBOWS AND TEES | 180 DEG RETURN BENDS | CAPS |
|---|---|---|---|---|---|---|---|
| NPS | ID at End (1), (3), (4) |
OD at Bevel (1), (2) | Centre-to- Centre O | Overall Length H | Centre -to- End Dimension A, B, C, M | Alignment of Ends U | Overall Length E |
| ½ to 2½ | 0.003 | 0.006 -0.003 |
0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 3 to 3 ½ | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 4 | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 5 to 8 | 0.006 | 0.009 -0.006 |
0.025 | 0.006 | 0.006 | 0.003 | 0.025 |
| 10 to 18 | 0.012 | 0.016 -0.012 |
0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 20 to 24 | 0.019 | 0.025 -0.019 |
0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 26 to 30 | 0.019 | 0.025 -0.019 |
… | 0.019 | 0.012 | … | 0.038 |
| 32 to 48 | 0.019 | 0.025 -0.019 |
… | 0.019 | 0.019 | … |
Duplex Steel 2205 Forged Fittings Dimensions
| Size / Product | 1/4″ | 1/8″ | 3/8″ | 3/4″ | 1/2″ | 1″ | 1-1/2″ | 1-1/4″ | 2″ | 3″ | 2-1/2″ | 4″ | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 45 Elbow | 2000 | 0.08 | 0.09 | 0.1 | 0.27 | 0.2 | 0.41 | 0.82 | 0.68 | 1.41 | 5.44 | 3.46 | 8.96 |
| 3000 | 0.12 | 0.09 | 0.24 | 0.56 | 0.34 | 0.94 | 2.05 | 1.03 | 2.23 | 5.97 | 3.71 | 8.96 | |
| 6000 | 0.27 | 0.11 | 0.39 | 1.07 | 0.63 | 1.27 | 2.54 | 2.24 | 4.37 | 14.16 | 7.01 | 11.36 | |
| Hex. Nipple | 3000 | 0.04 | 0.03 | 0.05 | 0.15 | 0.09 | 0.47 | 0.62 | 0.45 | 1.03 | 2.22 | 1.51 | 4 |
| 90 Elbow | 2000 | 0.08 | 0.1 | 0.13 | 0.35 | 0.25 | 0.53 | 1.06 | 0.82 | 1.7 | 4.81 | 3.14 | 10.21 |
| 3000 | 0.14 | 0.1 | 0.29 | 0.69 | 0.43 | 1.14 | 2.63 | 1.42 | 2.92 | 8.88 | 5.99 | 14.85 | |
| 6000 | 0.33 | 0.17 | 0.45 | 1.31 | 0.8 | 1.61 | 3.79 | 2.93 | 7.31 | 17.73 | 9.88 | 15.76 | |
| Tee | 2000 | 0.12 | 0.13 | 0.17 | 0.43 | 0.31 | 0.69 | 1.39 | 1.07 | 2.16 | 6.12 | 4.11 | 14.74 |
| 3000 | 0.2 | 0.13 | 0.38 | 0.92 | 0.56 | 1.49 | 3.27 | 1.76 | 3.53 | 10.19 | 6.99 | 19.13 | |
| 6000 | 0.45 | 0.2 | 0.63 | 1.65 | 0.98 | 2.17 | 4.71 | 3.74 | 7.88 | 21.7 | 13.11 | 18.53 | |
| Full Coupling | 3000 | 0.04 | 0.05 | 0.06 | 0.19 | 0.13 | 0.45 | 1.07 | 0.81 | 1.4 | 3.38 | 2.29 | 6.28 |
| 6000 | 0.13 | 0.08 | 0.2 | 0.5 | 0.34 | 0.87 | 1.94 | 1.09 | 2.87 | 6.1 | 4.2 | 10.04 | |
| Cross | 2000 | 0.14 | 0.17 | 0.21 | 0.54 | 0.39 | 0.83 | 1.75 | 1.26 | 2.65 | 7.58 | 5.26 | 16.35 |
| 3000 | 0.26 | 0.17 | 0.44 | 1.06 | 0.72 | 1.79 | 3.93 | 2.13 | 4.27 | 12.45 | 8.51 | 21.93 | |
| Half Coupling | 3000 | 0.02 | 0.02 | 0.03 | 0.1 | 0.06 | 0.23 | 0.54 | 0.34 | 0.7 | 1.68 | 1.13 | 3.11 |
| 6000 | 0.06 | 0.07 | 0.09 | 0.24 | 0.16 | 0.45 | 0.96 | 0.55 | 1.7 | 3.05 | 2.1 | 5.02 | |
| Cap | 3000 | 0.04 | 0.02 | 0.05 | 0.18 | 0.11 | 0.37 | 0.72 | 0.62 | 1.09 | 3.5 | 2.22 | 4.84 |
| 6000 | 0.06 | 0.06 | 0.09 | 0.4 | 0.26 | 0.71 | 0.77 | 0.59 | 2.23 | ||||
| Coupling | 3000 | 0.05 | 0.05 | 0.06 | 0.19 | 0.13 | 0.39 | 0.99 | 0.68 | 1.37 | 3.08 | 2.07 | 5.44 |
| 6000 | 0.06 | 0.08 | 0.18 | 0.41 | 0.31 | 0.85 | 1.81 | 1.05 | 3.4 | 6.1 | 4.2 | 10.04 | |
| Street Elbow | 3000 | 0.11 | 0.13 | 0.22 | 0.53 | 0.31 | 1.02 | 2.01 | 1.13 | 2.91 | |||
| Union | 3000 | 0.28 | 0.28 | 0.24 | 0.48 | 0.34 | 0.77 | 1.63 | 1.03 | 2.43 | 5.27 | 3.63 | 12 |
| Hex. Head Plug | 0.03 | 0.01 | 0.05 | 0.14 | 0.07 | 0.22 | 0.59 | 0.44 | 1.03 | 2.6 | 1.8 | 5.2 | |
| Square Head Plug | 0.01 | 0.01 | 0.03 | 0.09 | 0.05 | 0.16 | 0.38 | 0.27 | 0.63 | 1.53 | 0.96 | 3.83 | |
| Round Head Plug | 0.45 | 0.02 | 0.07 | 0.2 | 0.12 | 0.34 | 0.79 | 0.55 | 1.47 | 3.26 | 2.34 | 6.24 | |
Major Industrial Duplex Steel 2205 Fittings & Flanges Export Countries
United Arab Emirates (UAE), Jordan, Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, United States of America (USA), Singapore, Malaysia, Azerbaijan, Armenia, Georgia, Egypt, Algeria, Nigeria, South Africa, Kenya, Morocco, Ethiopia, Ghana, Tanzania, Sudan, Uganda, Angola.