Copper Nickel 90/10 Flanges are premium copper-nickel alloy flanges containing approximately 90% copper and 10% nickel, offering excellent resistance to seawater corrosion, biofouling, and erosion. As reliable manufacturers, Gopal Forge Industries™ produces precision-engineered Copper Nickel 90/10 Flanges that are widely used in marine engineering, desalination plants, condensers, and offshore applications where long-term durability is essential.
As experienced manufacturers, Gopal Forge Industries™ utilizes advanced forging techniques and stringent quality standards to manufacture flanges that comply with international specifications. Copper Nickel 90/10 alloy delivers excellent corrosion resistance and good mechanical properties, making it a preferred material for seawater and cooling water piping systems.
Being trusted exporters, we supply Copper Nickel 90/10 Flanges to clients across international markets with complete documentation and material traceability. Each flange undergoes comprehensive quality inspections and testing to ensure reliable performance in demanding industrial environments. Our efficient logistics network enables timely delivery for projects of every scale.
As professional suppliers, Gopal Forge Industries™ offers a complete range of Copper Nickel 90/10 Flanges, including weld neck flanges, blind flanges, slip-on flanges, threaded flanges, socket weld flanges, and lap joint flanges. These products are widely used in industrial piping solutions requiring excellent resistance to seawater corrosion and excellent service life.
As leading stockists, we maintain a comprehensive inventory of Copper Nickel 90/10 Flanges in multiple sizes, pressure ratings, and specifications. Our ready stock ensures immediate availability for maintenance shutdowns and urgent project requirements, helping customers minimize procurement delays and maintain operational efficiency.
As dependable suppliers, we provide a complete range of industrial piping products including pipe fittings, buttweld fittings, carbon steel elbow fittings, stainless steel elbow products, reducers, tees, stub ends, and forged fittings. Our integrated product range supports marine, offshore, and industrial piping projects with reliable and long-lasting solutions.
| Product Name | Copper Nickel 90/10 Flanges |
|---|---|
| Material Grade | Copper Nickel 90/10 / UNS C70600 / CuNi 90/10 |
| Equivalent Grade | DIN 2.0872 / CW352H / BS 2871 CN102 |
| Standards | ASME B16.5, ASME B16.47, ANSI B16.5, EN 1092-1, DIN, BS 4504, MSS SP-44 |
| Flange Types | Weld Neck (WN), Slip-On (SO), Blind (BL), Socket Weld (SW), Threaded (TH), Lap Joint (LJ), Ring Type Joint (RTJ), Spectacle Blind Flanges |
| Pressure Class | Class 150, 300, 400, 600, 900, 1500, 2500 |
| Size Range | ½" NB to 48" NB (Custom sizes available upon request) |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Process | Forged, Hot Worked, CNC Machined |
| Surface Finish | Natural Finish, Pickled, Machined, Polished, Sand Blasted |
| Testing | PMI Testing, Mechanical Testing, Chemical Analysis, Hydrostatic Testing, Ultrasonic Testing (UT), Visual Inspection and Dimensional Inspection |
| Certification | EN 10204 3.1 / 3.2, Mill Test Certificate (MTC), NACE Compliance (On Request) |
| Corrosion Resistance | Excellent resistance to seawater corrosion, biofouling, stress corrosion cracking, and erosion |
| Applications | Marine Engineering, Shipbuilding, Offshore Oil & Gas Platforms, Desalination Plants, Heat Exchangers, Condensers, Fire Water Systems, Seawater Piping Systems |
| Manufacturer | Gopal Forge Industries™ |
| Grade | Cu | Ni | Fe | Mn | Pb | Zn | C | S |
|---|---|---|---|---|---|---|---|---|
| Copper Nickel 90/10 (UNS C71500) | Balance (Approx. 69.0 - 71.0) | 29.0 - 33.0 | 0.40 - 1.00 | 1.00 Max | 0.05 Max | 1.00 Max | 0.05 Max | 0.02 Max |
| Grade | Tensile Strength | Yield Strength (0.2% Offset) | Elongation | Hardness | Density | Melting Range | Modulus of Elasticity | Thermal Conductivity | Electrical Resistivity |
|---|---|---|---|---|---|---|---|---|---|
| Copper Nickel 90/10 (UNS C71500) | Min. 360 MPa (52 ksi) | Min. 125 MPa (18 ksi) | Min. 30% | 80 – 100 HRB | 8.95 g/cm³ | 1170 – 1240°C (2138 – 2264°F) | 152 GPa | 29 W/m·K | 0.34 µΩ·m at 20°C |
The market price of Copper Nickel 90/10 Flanges generally varies depending on flange dimensions, pressure class, machining requirements, and fluctuations in copper and nickel raw material prices. Larger diameters and custom-manufactured flanges typically command premium pricing due to increased material consumption and specialized production processes. Gopal Forge Industries™ offers competitive market-based pricing and customized quotations for bulk and project orders.
