Manufacturer, Supplier & Exporter of Stainless Steel Socket Weld Half Coupling
Stainless Steel Socket Weld Half Couplings are critical components widely used in piping systems where a secure and leak-proof connection is necessary. These fittings are manufactured to join pipes with valves or other equipment using a socket weld mechanism, providing a strong, reliable, and durable joint suitable for high-pressure and high-temperature applications. Their design ensures ease of installation while maintaining excellent structural integrity..
Riddhi Siddhi Impex is a leading manufacturer and supplier of stainless steel socket weld half couplings in India. With years of experience and expertise, the company specializes in producing high-quality fittings that conform to international standards such as ASTM A182 and ASME B16.11. Riddhi Siddhi Impex ensures that every product undergoes stringent quality control to meet the specific needs of various industrial applications.
The stainless steel grades used in these half couplings include SS 304, SS 316, and SS 316L, each offering excellent corrosion resistance, mechanical strength, and longevity. The chemical composition of these grades includes essential elements such as chromium, nickel, and molybdenum, which enhance the resistance to oxidation and corrosive environments. This makes the couplings ideal for use in industries like oil & gas, chemical processing, power generation, and pharmaceuticals..
In terms of mechanical properties, these socket weld half couplings exhibit high tensile and yield strengths, along with good elongation percentages, which enable them to withstand extreme pressure and mechanical stress. Their hardness levels ensure durability against wear and tear, making them suitable for both critical and routine applications in harsh environments..
Riddhi Siddhi Impex caters to a vast network of clients 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, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, and Rajpipla. This extensive reach ensures timely delivery and customer support throughout the country..
Stainless Steel Socket Weld Half Coupling
Specification
| Grade | SS 304, SS 316, SS 316L |
|---|---|
| Standard | ASTM A182, ASME B16.11 |
| Size Range | 1/8" to 4" (DN 6 to DN 100) |
| Pressure Rating | Class 3000, 6000, 9000 |
| Connection Type | Socket Weld |
| Finish | Polished, Pickled, Passivated |
Chemical Composition (%)
| Element | SS 304 | SS 316 | SS 316L |
|---|---|---|---|
| Carbon (C) | 0.08 max | 0.08 max | 0.03 max |
| Chromium (Cr) | 18-20 | 16-18 | 16-18 |
| Nickel (Ni) | 8-10.5 | 10-14 | 10-14 |
| Manganese (Mn) | 2 max | 2 max | 2 max |
| Silicon (Si) | 1 max | 1 max | 1 max |
| Molybdenum (Mo) | - | 2-3 | 2-3 |
| Phosphorus (P) | 0.045 max | 0.045 max | 0.045 max |
| Sulfur (S) | 0.03 max | 0.03 max | 0.03 max |
Mechanical Properties
| Property | SS 304 | SS 316 | SS 316L |
|---|---|---|---|
| Tensile Strength | 520-750 MPa | 515-690 MPa | 485-620 MPa |
| Yield Strength (0.2% offset) | 205 MPa min | 205 MPa min | 170 MPa min |
| Elongation | 40% min | 40% min | 40% min |
| Hardness | HRB 70 max | HRB 70 max | HRB 70 max |
Dimension Chart (in inches)
| Nominal Size (NPS) | Outside Diameter (OD) | Length |
|---|---|---|
| 1/8" | 0.405" | 1.5" |
| 1/4" | 0.540" | 1.75" |
| 1/2" | 0.840" | 2.25" |
| 3/4" | 1.050" | 2.75" |
| 1" | 1.315" | 3" |
| 2" | 2.375" | 3.5" |
| 3" | 3.500" | 4" |
| 4" | 4.500" | 4.5" |
Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | 304, 316, 316L |
| EN | 1.4301 (304), 1.4401 (316), 1.4404 (316L) |
| JIS | SUS 304, SUS 316, SUS 316L |
| GB | 0Cr18Ni9, 0Cr17Ni12Mo2, 00Cr17Ni14Mo2 |
Equivalent Standards
| Standard | Description |
|---|---|
| ASTM A182 | Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves |
| ASME B16.11 | Forged Steel Fittings Socket Weld and Threaded |
Other Types of Stainless Steel Couplings
| Type | Description |
|---|---|
| Socket Weld Coupling | Full coupling with socket weld end connection |
| Threaded Coupling | Coupling with internal threads for joining threaded pipes |
| Butt Weld Coupling | Coupling designed for butt welding pipe ends |
| Reducing Coupling | Coupling that joins pipes of different diameters |
The company emphasizes strict quality assurance protocols, including dimensional accuracy checks, chemical testing, and pressure testing, to guarantee that every stainless steel socket weld half coupling meets or exceeds industry standards. This commitment to quality ensures long service life and minimal maintenance for end-users..
Frequently Asked Questions (FAQs)
- Q1: What is a stainless steel socket weld half coupling?
- A1: It is a pipe fitting used to connect a pipe to another fitting or valve using a socket weld joint, commonly used in high-pressure systems.
- Q2: Which stainless steel grades are available for socket weld half couplings?
- A2: Common grades include SS 304, SS 316, and SS 316L, chosen based on corrosion resistance and application requirements.
- Q3: Are custom sizes available?
- A3: Yes, Riddhi Siddhi Impex offers custom sizes and pressure ratings as per client requirements.
- Q4: Which industries use stainless steel socket weld half couplings?
- A4: Industries like oil & gas, petrochemical, power plants, pharmaceuticals, and food processing extensively use these fittings.
Cities we have supplied our products to
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