Manufacturer, Supplier & Exporter of Carbon Steel Socket Weld Coupling
Carbon Steel Socket Weld Coupling is a type of forged pipe fitting designed to connect two pipes in high-pressure systems using a socket welding technique. It offers a strong and leak-proof joint by inserting the pipe into the socket and welding around the outer edge. These couplings are widely used in applications involving high pressure, high temperature, or hazardous fluids, such as in oil and gas pipelines, power plants, petrochemical units, and refinery systems. Their compact design, strength, and durability make them a preferred choice for joining small-diameter piping in confined spaces..
Riddhi Siddhi Impex is a prominent manufacturer and domestic supplier of Carbon Steel Socket Weld Coupling in India. The company specializes in producing forged fittings that meet international standards such as ASME B16.11, MSS-SP 83, and ASTM A105. With years of experience and a state-of-the-art production facility, Riddhi Siddhi Impex ensures precision manufacturing, dimensional accuracy, and excellent surface finish in all its fittings. These couplings are available in pressure classes of 2000, 3000, and 6000 LBS to suit diverse industrial needs..
Each Carbon Steel Socket Weld Coupling is manufactured using high-grade raw materials like ASTM A105, A350 LF2, and A694 F52-F65 carbon steel, which are known for their strength and ability to withstand high-stress environments. These fittings are heat-treated and subjected to rigorous quality checks including visual inspection, hydro testing, and third-party inspections when required. The company also offers customization options for sizes, pressure ratings, and surface coatings based on customer specifications.
As a leading Carbon Steel Socket Weld Coupling domestic supplier, Riddhi Siddhi Impex serves a wide range of industrial cities across India. Key metropolitan cities such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, and Surat are major markets where the company regularly supplies its forged fittings. These cities house vital industries including petrochemicals, infrastructure, power, and water treatment, where socket weld fittings are essential for maintaining secure pipeline systems..
Apart from metro regions, Riddhi Siddhi Impex has a strong supply chain that extends to Tier-2 and Tier-3 cities like Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, and Amritsar. These cities are growing rapidly in terms of industrial development and require dependable piping components to support local manufacturing units, public sector projects, and chemical industries. The company’s logistics team ensures timely delivery and technical support to clients across these areas..
Carbon Steel Socket Weld Coupling
Specifications
| Product Name | Carbon Steel Socket Weld Coupling |
|---|---|
| Standard | ASME B16.11 / MSS SP-79 / SP-83 |
| Material Grade | ASTM A105 / A350 LF2 / A694 F52-F70 |
| Pressure Rating | Class 2000 / 3000 / 6000 |
| Connection Type | Socket Weld |
| Type | Full Coupling / Half Coupling |
Chemical Composition (ASTM A105)
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.35 max |
| Manganese (Mn) | 0.60 – 1.05 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
| Silicon (Si) | 0.10 – 0.35 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa (min) |
| Yield Strength | 250 MPa (min) |
| Elongation | 22% (min) |
| Hardness | 197 HB max |
Socket Weld Coupling Dimensions (ASME B16.11)
| Nominal Pipe Size (NPS) | Socket Bore Diameter (B) | Outer Diameter (D) | Length (Full Coupling) | Length (Half Coupling) |
|---|---|---|---|---|
| 1/2" | 15.0 mm | 33 mm | 38 mm | 27 mm |
| 3/4" | 20.2 mm | 38 mm | 44 mm | 32 mm |
| 1" | 25.9 mm | 44 mm | 51 mm | 38 mm |
| 1 1/2" | 40.7 mm | 60 mm | 60 mm | 45 mm |
| 2" | 52.5 mm | 70 mm | 64 mm | 51 mm |
Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | A105 |
| ASME | SA105 |
| EN | C22.8 |
| DIN | 1.0460 |
Equivalent Standards
| Organization | Standard |
|---|---|
| ASTM | ASTM A105 |
| ASME | ASME B16.11 |
| DIN | DIN 1.0460 |
| EN | EN 10222-1 |
Other Types of Socket Weld Fittings
| Fitting Type | Usage |
|---|---|
| Socket Weld Elbow | Used to change direction of pipe flow |
| Socket Weld Tee | Used to create branch in the pipeline |
| Socket Weld Cross | Joins four pipes at right angles |
| Socket Weld Union | Allows easy disconnection of pipes |
| Socket Weld Cap | Used to close the pipe end |
In Southern India, Riddhi Siddhi Impex supplies its products to cities such as Mysuru (Mysore), Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, and Mangalore. These cities play a key role in sectors like marine engineering, textiles, energy, and construction, where carbon steel socket weld couplings are used for durable and leak-free pipe connections. The company’s presence in these cities helps local contractors and plant engineers access quality fittings quickly and efficiently.
Frequently Asked Questions (FAQs)
- Q1: What is the purpose of a Socket Weld Coupling?
- A1: Socket Weld Couplings are used to connect two pipes in high-pressure piping systems using a strong socket welding joint.
- Q2: Which material grade is used for Carbon Steel Socket Weld Coupling?
- A2: Common material grades include ASTM A105, A350 LF2, and A694 F52–F70 depending on pressure and temperature requirements.
- Q3: Are custom sizes and classes available?
- A3: Yes, Riddhi Siddhi Impex offers custom sizes, pressure ratings, and specifications based on project requirements.
- Q4: Do you supply in Indian cities?
- A4: Yes, we supply across India including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Pune, Ahmedabad, Surat, Vadodara, Rajkot, and more.
Cities we have supplied our products to
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Countries we have supplied our products to
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