Top Cupronickel Pipes, Fittings and Copper Alloy Manufacturer & Exporter
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Top Cupronickel Pipes, Fittings and Copper Alloy Manufacturer & Exporter
•90/10 Copper Nickel Socket Weld Coupling•
90/10 Copper Nickel Socket Weld Couplings are precision-engineered fittings manufactured in accordance with NAVSEA DWG 803-6397430, specifically designed for marine and naval piping systems. At Cunimet Alloys Pvt. Ltd., these couplings are produced using high-quality UNS C70600 (90/10 CuNi) material, offering excellent resistance to seawater corrosion, erosion, and biofouling in aggressive environments. These socket weld couplings ensure a strong, leak-proof connection between pipes, making them ideal for critical and long-term service applications.
These fittings are suitable for use with Class 200 or 700 copper nickel tubes in compliance with MIL-T-16420, meeting stringent military and shipbuilding standards. Available in a wide range of sizes, these couplings are widely used in shipbuilding, offshore platforms, desalination plants, and marine piping systems where durability and reliability are essential.
Cunimet Alloys Pvt. Ltd. offers these socket weld couplings in various pressure classes and customized configurations, including reduced ends and special designs as per client requirements. For enquiries and orders, contact [email protected].
| Product | 90/10 Copper Nickel Socket Weld Coupling |
| Specification | NAVSEA DWG 803-6397430 |
| Material | 90/10 Copper Nickel |
| Alloy Equivalent | UNS C70600 / C96200 |
| Available Alloys | 90/10 CuNi & 70/30 CuNi |
| Size Range | 1/4" to 4" and above |
| Connection Type | Socket Weld |
| Intended Use | For use with Class 200 or 700 Copper Nickel Tube IAW MIL-T-16420 |
| Pressure Rating | Up to 400 PSIG (WOG) or as per requirement |
| Applications | Marine, Naval, Offshore, Shipbuilding, Desalination Plants |
| Features | Excellent seawater corrosion resistance, high strength, leak-proof connection, long service life |
| Customization | Available in various pressure classes, reduced ends, and special configurations on request |
| Nominal Pipe Size | Material | Maximum Working Pressure (PSIG) | Maximum Temperature (°F) |
|---|---|---|---|
| 1/4" through 6" | 90/10 CuNi (C70600 / C96200) | 400 | 425 |
| Above 6" | 90/10 CuNi (C70600 / C96200) | 250 | 425 |
| Nominal Pipe Size (Inches) | A | B | C | D |
|---|---|---|---|---|
| 1/4 | 0.97 | 0.945 | 0.545 | 25/94 |
| 3/8 | 1.05 | 1.096 | 0.680 | 5/16 |
| 1/2 | 1.29 | 1.275 | 0.845 | 3/8 |
| 3/4 | 1.43 | 1.503 | 1.055 | 13/32 |
| 1 | 1.68 | 1.780 | 1.320 | 7/16 |
| 1 1/4 | 1.86 | 2.129 | 1.665 | 1/2 |
| 1 1/2 | 1.92 | 2.387 | 1.905 | 5/8 |
| 2 | 2.20 | 2.908 | 2.380 | 23/32 |
| 2 1/2 | 2.88 | 3.408 | 2.880 | 25/32 |
| 3 | 3.18 | 4.041 | 3.505 | 7/8 |
| 3 1/2 | 3.43 | 4.541 | 4.005 | 29/32 |
| 4 | 3.69 | 5.097 | 4.505 | — |
| Custom sizes are available on request. Please contact us at [email protected] | ||||
| Intended For Use | Class 200 or 700 Copper Nickel Tube |
| Applicable Standard | MIL-T-16420 |
| Manufacturing Standard | NAVSEA DWG 803-6397430 |
| Application | Marine, Naval, Offshore and Shipbuilding Piping Systems |
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We are one of the prominent manufacturer and supplier of cupronickel and copper alloy products in India. We have achieved this by consistently upholding our highest ethical standards, integrity, and values in the market from the last two decades.