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In Delhi, India, Kunj Sheets and Plates is a reputable company that produces and supplies copper nickel 90/10 sheets and plates. With decades of experience, we offer high-strength, corrosion-resistant, and thermally stable Cu-Ni alloy plates for use in the chemical processing, desalination, and marine industries. Particularly noteworthy is the 90/10 composition’s resistance to stress corrosion cracking, biofouling, and seawater corrosion (90% copper, 10% nickel). For applications needing exceptional corrosion and mechanical performance, Kunj provides premium plates that meet international standards and have precise thickness, outstanding weldability, and dimensional accuracy.
90% copper and 10% nickel make up Copper Nickel 90/10 (C70600), with trace amounts of iron and manganese added to increase corrosion resistance. Its yield strength is between 100 and 150 MPa, and its tensile strength is between 300 and 500 MPa. Excellent resistance to brine, seawater, and non-oxidizing acids is provided by the alloy. It is non-magnetic and maintains its strength and ductility at high temperatures. It is a dependable option for structural applications in corrosive environments as well as pressure systems due to its good formability and weldability.
| Specifications | : | ASTM / ASME SB122 |
| Size | : | 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm |
| Thickness | : | 0.1mm to 12 mm Thk |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | : | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness | : | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Copper Nickel 90/10 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Copper Nickel 90/10 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| STANDARD | WERKSTOFF NR. | UNS |
| Copper Nickel 90/10 | 2.0872 | C70600 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Copper Nickel 90/10 sheets and plates offer exceptional corrosion resistance, especially in seawater and marine environments, making them ideal for shipbuilding and offshore applications. Their high strength and excellent formability ensure durability in challenging conditions. These materials are also resistant to biofouling, reducing maintenance needs. The alloys exhibit good thermal conductivity, making them effective in heat exchange systems. Additionally, Copper Nickel 90/10 sheets and plates provide excellent weldability, ensuring easy fabrication for various industrial uses. Their resistance to oxidation and stress corrosion enhances their reliability and longevity.
Because of their exceptional resistance to marine biofouling and saltwater corrosion, copper nickel 90/10 sheets and plates are widely used in marine engineering for seawater piping, hulls, condensers, and heat exchangers. They are utilised for brine systems and cooling in power plants and desalination plants. Chemical processing facilities, firewater systems, and offshore oil platforms also use them. They are becoming more prevalent in hospital and hygiene-related settings because of their antimicrobial qualities. They are necessary for long-lasting, maintenance-free performance in challenging, damp, and corrosive operating conditions because of their adaptability and resistance to corrosion.
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