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Ganpat Metal manufactures and supplies premium quality Duplex Stainless Steel Butt Weld Fittings conforming to ASTM A815 / ASME SA815 Grade WPS31803 and WPS32205 (Alloy 2205). Duplex stainless steels exhibit a balanced 50/50 austenitic-ferritic microstructure, delivering twice the yield strength of conventional 300-series stainless steels along with outstanding resistance to chloride stress corrosion cracking, pitting and crevice corrosion.
Our duplex butt weld fittings range encompasses 90° and 45° elbows, tees, reducers, and caps manufactured by hot mandrel forming or cold hydroforming followed by full solution annealing at 1040°C–1100°C with rapid water quenching. This precise thermal cycle avoids embrittling sigma phases and preserves phase balance and PREN values exceeding 34.
With complete size availability from 1/2" NB to 24" NB in seamless and up to 48" NB in welded execution, our duplex fittings comply with ASME B16.9, MSS-SP-43, and NACE MR0175 / ISO 15156 for sour oilfield applications.
GM handles enquiries for Duplex Stainless Steel Butt Weld Fittings where buyers need to match fitting types (elbows, tees, reducers, end caps), nominal pipe sizes (NPS / DN), wall thickness schedules, and material grade to piping isometric drawings or project purchase specifications. The supplied inventory covers seamless and 100% X-ray welded fittings from 1/2" NB up to 48" NB across all schedules from Sch 10S to Sch XXS.
Grade selection should be based on the design pressure, service temperature, fluid media corrosivity, and mechanical strength requirements of the piping system. Buyers should also confirm the applicable manufacturing standard (ASME B16.9 / MSS-SP-43), weld bevel preparation (ASME B16.25), supplementary inspection requirements (radiography, PMI, hydrotest), and test documentation before finalizing an order.
| Parameter | Specification |
|---|---|
| Standard Specifications | ASTM A815 / ASME SA815, ASME B16.9, MSS-SP-43 |
| Available Grades | ASTM A815 WPS31803, WPS32205 (2205 Duplex) |
| Fitting Types | 90°/45° Elbows, Straight/Reducing Tees, Concentric/Eccentric Reducers, End Caps |
| Size Range | 1/2" NB to 48" NB (Seamless up to 24", Welded up to 48") |
| Schedule / Thickness | Sch 10S, Sch 40S, Sch 80S, Sch 160, Sch XXS |
| Phase Ratio | 40% – 60% Ferrite / Austenite phase balance |
| End Preparation | Beveled Ends (ASME B16.25) 37.5° ± 2.5° |
| Corrosion Resistance | Pitting Resistance Equivalent Number (PREN) ≥ 34 |
| Testing & Certification | ASTM G48 Method A Pitting Test, Ferrite Count (ASTM E562), PMI, RT |
| Documentation | EN 10204 Type 3.1 / 3.2 MTC, NACE MR0175 / ISO 15156 |
Standard chemical composition limits conform to international metallurgical standards.
| Grade | C max | Cr | Ni | Mo | N | Mn max | Fe |
|---|---|---|---|---|---|---|---|
| WPS31803 | 0.030 | 21.0 – 23.0 | 4.5 – 6.5 | 2.5 – 3.5 | 0.08 – 0.20 | 2.0 | Balance |
| WPS32205 | 0.030 | 22.0 – 23.0 | 4.5 – 6.5 | 3.0 – 3.5 | 0.14 – 0.20 | 2.0 | Balance |
Minimum mechanical property requirements in designated standard delivery condition:
| Grade | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| WPS31803 | 620 MPa (90 ksi) | 450 MPa (65 ksi) | 25% | 290 HBW / 31 HRC |
| WPS32205 | 655 MPa (95 ksi) | 450 MPa (65 ksi) | 25% | 290 HBW / 31 HRC |
| Standard / Country | Designation |
|---|---|
| ASTM A815 WPS31803 | UNS S31803 • DIN 1.4462 • EN X2CrNiMoN22-5-3 • AFNOR Z2CND22-05 |
| ASTM A815 WPS32205 | UNS S32205 • W.Nr. 1.4462 • Alloy 2205 • Sandvik SAF 2205 |
| Form / Type | Size Range | Length / Dimensions | Condition / Standard |
|---|---|---|---|
| 90° Long Radius (LR) Elbow | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / R = 1.5D |
| 45° Long Radius (LR) Elbow | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / Standard Radius |
| 90° Short Radius (SR) Elbow | 1/2" to 36" NB (DN15 - DN900) | Sch 10S to Sch XXS | ASME B16.9 / R = 1.0D |
| Equal / Straight Tee | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / Center-to-End C = M |
| Reducing Tee | 1/2" x 3/8" to 48" x 40" NB | Sch 5S to Sch XXS | ASME B16.9 / Branch Dimension M |
| Concentric Reducer | 1/2" x 3/8" to 48" x 40" NB | Sch 5S to Sch XXS | ASME B16.9 / In-line Center Flow Axis |
| Eccentric Reducer | 1/2" x 3/8" to 48" x 40" NB | Sch 5S to Sch XXS | ASME B16.9 / Flat Side for Horizontal Lines |
| End Cap | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / Ellipsoidal Head Profile |
| Stub End (Lap Joint) | 1/2" to 24" NB (DN15 - DN600) | Sch 5S to Sch 80 | MSS-SP-43 / ASME B16.9 Short/Long Pattern |
Custom dimensions, special cuts, and tailored surface conditions available on request.
Estimate butt weld fitting weights by fitting type, nominal pipe size (NPS) and schedule.
Ganpat Metal manufactures and supplies certified Duplex Stainless Steel Butt Weld Fittings for industrial buyers across India. All materials are sourced from premium quality mills, fully tested for chemistry, mechanical properties, and dimensional tolerances, and supplied with complete traceable Mill Test Certificates.
Whether you require standard stock dimensions or customized sizes, Ganpat Metal maintains deep inventories in Mumbai and provides rapid dispatch, custom cut-to-length services, and third-party inspection support.
India
UAE
Saudi Arabia
Oman
Australia
Malaysia
Singapore
Bangladesh
Egypt
Brazil
Russia
Kazakhstan
| Requirement | Details to Provide |
|---|---|
| Fitting Type | 90°/45° LR Elbow, Equal Tee, Reducing Tee, Reducer, Cap, Stub End |
| Grade | ASTM A815 WPS31803 / WPS32205 (2205 Duplex) |
| Size (NPS / DN) | 1/2" NB to 48" NB |
| Schedule / Wall | Sch 10S, Sch 40S, Sch 80S, Sch 160, Sch XXS |
| Construction | Seamless or 100% X-Ray Welded (ASME B16.9) |
| End Preparation | Beveled Ends (ASME B16.25) or Plain Square Cut |
| Corrosion Test | ASTM G48 Method A Pitting Corrosion Test at 25°C if required |
| Documentation | EN 10204 Type 3.1 / 3.2 MTC with Ferrite Content & PMI report |
