Top Cupronickel Pipes, Fittings and Copper Alloy Manufacturer & Exporter
•90/10 Copper Nickel Return Bend•
90/10 Copper Nickel Return Bends are premium quality marine-grade fittings manufactured in accordance with NAVSEA DWG 803-6397430. Designed for efficient directional flow reversal in piping systems, these return bends are widely used in marine, naval, offshore, and shipbuilding applications where excellent corrosion resistance and long-term reliability are essential. Manufactured using high-quality UNS C70600 / C96200 (90/10 CuNi) alloy, the fittings offer outstanding resistance to seawater corrosion, erosion, stress corrosion cracking, and biofouling.
These return bends are supplied with 400# socket weld dimensions and can also be manufactured in customized configurations and pressure ratings as per project requirements. The fittings are intended for use with Class 200 or 700 Copper Nickel Tube IAW MIL-T-16420, ensuring dependable performance in demanding marine piping systems. Precision manufacturing provides accurate dimensions, secure socket weld connections, and leak-proof operation under high-pressure conditions.
Available in sizes ranging from ¼” to 2”, 90/10 Copper Nickel Return Bends are commonly used in seawater lines, cooling water systems, desalination plants, offshore platforms, and naval piping networks. Cunimet Alloys Pvt. Ltd. manufactures these fittings under strict quality standards to ensure reliable service life and superior performance in critical applications. For enquiries and orders, contact [email protected].
| Product | 90/10 Copper Nickel Return Bend |
| Specification | NAVSEA DWG 803-6397430 |
| Material | 90/10 Copper Nickel |
| Alloy Equivalent | UNS C70600 / C96200 |
| Available Alloys | CuNi 90/10 & CuNi 70/30 |
| Pressure Rating | 400 PSIG (WOG) |
| Size Range | 1/2" to 2" |
| Connection Type | Socket Weld |
| Applications | Marine, Naval, Offshore, Shipbuilding & Seawater Systems, etc. |
| Nominal Pipe Size (Inches) | Maximum Working Pressure (LB/IN²) | Maximum Temperature (°F) |
|---|---|---|
| 1/4 through 6 | 200 | 425 |
| Above 6 | 150 | 425 |
| 90/10 CuNi (Alloy C706/C962) | ||
| Nominal Pipe Size | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
|---|---|---|---|---|---|---|
| A | 1.690 | 2.130 | 2.630 | 3.130 | 3.560 | 4.190 |
| B | 1.275 | 1.503 | 1.780 | 2.129 | 2.387 | 2.908 |
| C | .845 (+/- .030) | 1.055 (+/- .030) | 1.320 (+/- .030) | 1.665 (+/- .030) | 1.905 (+/- .030) | 2.380 (+/- .046) |
| D | 3/8 | 13/32 | 7/16 | (+/- .030) | 5/8 | 23/35 |
| All dimensions are in inches. Custom sizes available on request. Contact [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, etc. |
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