Manufacturer, Supplier & Exporter of Duplex Steel Socket Weld Coupling
Duplex Steel Socket Weld Coupling is a vital component in piping systems, designed to connect two pipes of the same diameter, ensuring a secure and leak-proof joint. Manufactured from high-quality duplex stainless steel, these couplings offer superior strength and excellent resistance to corrosion, making them ideal for demanding industrial applications...
Riddhi Siddhi Impex, with over two decades of experience, is a leading manufacturer and supplier of Duplex Steel Socket Weld Couplings in India. The company specializes in producing fittings that meet international standards, ensuring reliability and performance in various industries..
These couplings are widely used in industries such as chemical processing, oil and gas, water treatment, and marine applications. Their ability to withstand high pressures and temperatures ensures the integrity of the piping systems in which they are installed..
Riddhi Siddhi Impex supplies Duplex Steel Socket Weld Couplings across major Indian cities, including Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nagpur, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Vadodara, Narmada, Surat, Ankleshwar, Navsari, Valsad, and Rajpipla...
The company's commitment to quality is evident in its adherence to international standards and certifications. Each coupling undergoes rigorous testing to ensure it meets the required specifications, providing customers with products that guarantee safety and durability..
Duplex Steel Threaded Cross
Specification
| Property | Detail |
|---|---|
| Material | Duplex Stainless Steel (S31803, S32205, S32750) |
| Standard | ASTM A182 / ASME B16.11 |
| Size Range | 1/8" to 4" (DN 6 to DN 100) |
| Pressure Class | 2000#, 3000#, 6000# |
| Thread Type | BSP, NPT, BSPT |
| Surface Finish | Polished, Matte, Custom |
| Application | Chemical, Petrochemical, Oil & Gas, Water Treatment, Marine |
Chemical Composition (%)
| Element | S31803 | S32205 | S32750 |
|---|---|---|---|
| Carbon (C) | ≤0.03 | ≤0.03 | ≤0.03 |
| Manganese (Mn) | ≤2.00 | ≤2.00 | ≤1.20 |
| Silicon (Si) | ≤1.00 | ≤1.00 | ≤0.80 |
| Phosphorus (P) | ≤0.03 | ≤0.03 | ≤0.035 |
| Sulfur (S) | ≤0.02 | ≤0.02 | ≤0.02 |
| Chromium (Cr) | 22–23 | 21–23 | 24–26 |
| Nickel (Ni) | 4.5–6.5 | 4.5–6.5 | 6–8 |
| Molybdenum (Mo) | 3–3.5 | 2.5–3.5 | 3–5 |
| Nitrogen (N) | 0.14–0.20 | 0.08–0.20 | 0.24–0.32 |
| Iron (Fe) | Balance | Balance | Balance |
Mechanical Properties
| Property | S31803 | S32205 | S32750 |
|---|---|---|---|
| Tensile Strength | ≥620 MPa | ≥620 MPa | ≥800 MPa |
| Yield Strength | ≥450 MPa | ≥450 MPa | ≥550 MPa |
| Elongation | ≥25% | ≥25% | ≥25% |
| Hardness | ≤32 HRC | ≤32 HRC | ≤30 HRC |
Dimension Chart
| Nominal Size | Thread Type | Pressure Class | Length (mm) | Outside Diameter (mm) |
|---|---|---|---|---|
| 1/8" | BSP/NPT | 2000# | 21 | 21 |
| 1/4" | BSP/NPT | 3000# | 25 | 25 |
| 1/2" | BSP/NPT | 3000# | 30 | 30 |
| 1" | BSP/NPT | 6000# | 35 | 35 |
| 2" | BSP/NPT | 6000# | 45 | 45 |
| 4" | BSP/NPT | 6000# | 60 | 60 |
Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | S31803, S32205, S32750 |
| UNS | S31803, S32205, S32750 |
| WERKSTOFF | 1.4462, 1.4410 |
Equivalent Standards
| Standard | Description |
|---|---|
| ASTM A182 | Forged or Rolled Alloy and Stainless Steel Pipe Fittings |
| ASME B16.11 | Forged Fittings, Socket-Welding and Threaded |
| MSS SP-79 | Wrought Steel Butt-Welding Fittings |
| BS 3799 | Steel Pipe Fittings Specification |
Other Types of Duplex Stainless Steel Fittings
| Type | Description |
|---|---|
| Socket Weld Elbow | 45° / 90° elbow for pipeline directional changes |
| Threaded Elbow | 45° / 90° elbow with threaded ends |
| Socket Weld Tee | Three-way connection with socket weld ends |
| Threaded Tee | Three-way threaded connection for pipelines |
| Socket Weld Cross | Four-way connection with socket weld ends |
| Threaded Cross | Four-way threaded fitting for pipelines |
In addition to standard sizes and specifications, Riddhi Siddhi Impex offers customization options to meet specific project requirements. This flexibility allows clients to obtain couplings that perfectly fit their piping systems, ensuring optimal performance..
Frequently Asked Questions (FAQs)
- Q1: What is a Duplex Steel Threaded Cross?
- A1: It is a four-way pipe fitting made of duplex stainless steel, used to connect four pipes in a secure and leak-proof manner.
- Q2: Where is it commonly used?
- A2: Widely used in chemical, petrochemical, oil & gas, water treatment, and marine industries for its high strength and corrosion resistance.
- Q3: Can sizes and pressure classes be customized?
- A3: Yes, Riddhi Siddhi Impex offers customized sizes, threads, and pressure ratings to meet specific project requirements.
- Q4: What are the benefits of duplex steel over standard stainless steel?
- A4: Duplex steel provides higher tensile strength, better resistance to pitting, crevice corrosion, and stress corrosion cracking.
Cities we have supplied our products to
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Countries we have supplied our products to
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