Manufacturer, Supplier & Exporter of Super Duplex Steel Socket Weld Elbow 45° / 90°
Super Duplex Steel, particularly grades like UNS S32750 and UNS S32760, are renowned for combining high strength and excellent corrosion resistance. These properties come from their dual microstructure — approximately 50% ferrite and 50% austenite — which gives them mechanical strength superior to standard austenitic stainless steels (like 304 or 316). When used in socket weld elbows (45° and 90°), this alloy ensures long service life even in extreme environments like seawater piping, chemical plants, and desalination systems. The material’s pitting resistance equivalent number (PREN) above 40 makes it ideal for chloride-bearing environments...
A Super Duplex Steel Socket Weld Elbow is typically designed according to ASME B16.11 standards, ensuring accurate dimensions, uniform wall thickness, and tight socket fit. These elbows are manufactured in both 45° and 90° angles, used to change the flow direction in pipelines. The socket weld type connection allows a strong, leak-proof joint suitable for high-pressure, small-diameter piping systems. Riddhi Siddhi Impex ensures dimensional precision, smooth bore finishing, and corrosion-resistant surfaces for all elbows, making them suitable for both hydraulic and process systems..
Each Super Duplex Socket Weld Elbow from Riddhi Siddhi Impex undergoes rigorous testing to guarantee quality and durability. Standard tests include hydrostatic testing, non-destructive examination (NDE), ultrasonic testing (UT), dye penetrant testing (DP), and hardness testing. The company provides complete documentation, including Material Test Certificates (MTC) as per EN 10204 3.1/3.2, ensuring traceability from raw material to finished product. This level of quality assurance ensures clients across India receive fittings that comply with global standards such as ASTM A182 F53/F55 and ASME B16.11...
The elbows are supplied with smooth machined surfaces, corrosion-protective coatings, and precise marking. Packaging is done carefully using wooden crates, bubble wrap, and plastic caps on ends to prevent damage during transportation to cities like Mumbai, Bengaluru, Hyderabad, Pune, or Kolkata. Riddhi Siddhi Impex adheres to standard export packaging norms even for domestic deliveries, ensuring customers in industrial hubs like Vadodara, Surat, Rajkot, and Dahej receive components in perfect condition...
Super Duplex Steel Socket Weld Elbows (45° / 90°) are widely used in petrochemical refineries, fertilizer plants, oil exploration rigs, shipbuilding, desalination plants, and power generation. In cities like Chennai, Kochi, and Visakhapatnam, these fittings serve marine and offshore industries; while in Ahmedabad, Vadodara, and Ankleshwar, they are used in chemical and pharmaceutical sectors. Refineries in Mumbai, Dahej, and Jamnagar also rely on such high-performance elbows for their corrosion-prone pipelines. The product’s reliability under pressure and temperature variations makes it indispensable in Indian industrial infrastructure.
Super Duplex Steel Socket Weld Elbow 45° / 90°
Specification
| Grade | Super Duplex Stainless Steel UNS S32750 / S32760 |
|---|---|
| Standard | ASTM A182 / ASME SA182 |
| Size Range | 1/8” NB to 4” NB (Socket Weld Type) |
| Class / Pressure Rating | 2000 / 3000 / 6000 / 9000 LBS |
| Angle Type | 45° and 90° Elbows (Short & Long Radius) |
| Connection Type | Socket Weld (ASME B16.11) |
| End Type | Plain End / Beveled End / Custom |
| Finish | Mill Finish, Pickled, Polished |
| Form | Elbow, Tee, Coupling, Reducer, Cap (Forged Fittings) |
Chemical Composition
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Manganese (Mn) | ≤ 1.20 |
| Carbon (C) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.80 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.020 |
| Nitrogen (N) | 0.24 – 0.32 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 795 MPa |
| Yield Strength (0.2% offset) | ≥ 550 MPa |
| Elongation | ≥ 25% |
| Hardness | ≤ 32 HRC |
| Impact Strength | ≥ 100 J (at Room Temperature) |
Dimension Chart (Typical Sizes)
| Nominal Size (NB) | Socket Bore (mm) | Radius (mm) |
|---|---|---|
| 1/2" | 15 | 38 |
| 3/4" | 20 | 45 |
| 1" | 25 | 55 |
| 1 1/2" | 40 | 83 |
| 2" | 50 | 95 |
| 3" | 80 | 140 |
| 4" | 100 | 165 |
Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM / ASME | A182 F53 / F55 |
| UNS | S32750 / S32760 |
| EN | 1.4410 / 1.4501 |
| DIN | X2CrNiMoN25-7-4 / X2CrNiMoCuWN25-7-4 |
Equivalent Standards
| Standard | Description |
|---|---|
| ASTM A182 / ASME SA182 | Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Fittings, Valves, and Parts |
| ASME B16.11 | Forged Fittings, Socket-Welding and Threaded |
| ASTM A815 | Wrought Ferritic, Austenitic, and Duplex Stainless Steel Pipe Fittings |
| EN 10222-5 | Steel Forgings for Pressure Purposes – Stainless Steels |
Other Types of Super Duplex Fittings
| Type | Description |
|---|---|
| Super Duplex Tee | Used to combine or divide fluid flow in high-pressure pipelines |
| Super Duplex Reducer | Connects pipes of different diameters, ensuring smooth transition |
| Super Duplex Coupling | Provides socket weld or threaded connection between pipes |
| Super Duplex End Cap | Closes the end of a piping system safely under pressure |
| Super Duplex Union | Allows disassembly of piping for maintenance or inspection |
For domestic buyers and engineering procurement construction (EPC) firms across Delhi, Jaipur, Lucknow, and Chandigarh, sourcing from Riddhi Siddhi Impex means assured quality and timely delivery. The company’s wide network allows easy availability of Super Duplex 45° and 90° Socket Weld Elbows in standard and customized sizes. Bulk buyers benefit from competitive pricing, while smaller orders are fulfilled quickly from ready stock. The company’s technical support team assists with material selection, pressure rating calculations, and welding procedures.
Frequently Asked Questions (FAQs)
- Q1: What are the common applications of Super Duplex Steel Socket Weld Elbow 45° / 90°?
- A1: Super Duplex Steel Socket Weld Elbows are widely used in industries such as oil and gas, petrochemical, desalination, marine engineering, pulp and paper, and chemical processing where high strength and excellent corrosion resistance are essential.
- Q2: Can you provide customized sizes and pressure ratings?
- A2: Yes, Riddhi Siddhi Impex offers customized 45° and 90° socket weld elbows in various sizes, schedules, and pressure ratings (2000, 3000, 6000, and 9000 LBS) according to client specifications and project requirements.
- Q3: What are the main benefits of using Super Duplex Steel for elbows?
- A3: Super Duplex Steel provides superior corrosion resistance in chloride-containing environments, higher mechanical strength, improved pitting resistance, and extended service life compared to standard stainless steels.
- Q4: Do you supply Super Duplex Steel Socket Weld Elbows across India?
- A4: Yes, Riddhi Siddhi Impex supplies Super Duplex Steel Socket Weld Elbows 45° / 90° to major Indian cities including Mumbai, Delhi, Chennai, Hyderabad, Bengaluru, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Coimbatore, and other industrial hubs.
Cities we have supplied our products to
Mumbai, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Delhi, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Bengaluru(Bangalore), Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Hyderabad, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Chennai, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Kolkata, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Pune, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Ahmedabad, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Surat, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Vadodara, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Rajkot, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Nagpur, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Indore, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Bhopal, Super Duplex Steel Socket Weld Elbow 45° / 90° Suplier in Jaipur, Super Duplex Steel Socket Weld Elbow 45° / 90° 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Countries we have supplied our products to
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