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In Chennai, India, Kunj Sheets and Plates is a well-known producer and supplier of copper nickel 90/10 coils and slitting coils. We provide high-end Cu-Ni 90/10 coils, which are renowned for their remarkable resistance to corrosion, particularly in saltwater and marine settings. Our coils are made with cutting-edge techniques and come in a range of widths and thicknesses to satisfy different industrial requirements. Serving industries like shipbuilding, offshore engineering, heat exchangers, and more, we place a high priority on quality, dependability, and client satisfaction. Due to the exceptional strength and workability of our Copper Nickel 90/10 coils, Kunj Sheets and Plates are a popular option in both domestic and international markets.
90% copper and 10% nickel make up Copper Nickel 90/10 Coils, with trace amounts of iron and manganese added for increased mechanical strength and corrosion resistance. These coils have outstanding yield strength of roughly 120–150 MPa and tensile strength of 275–370 MPa. With an elongation of about 30% and a Brinell hardness of about 80–100 HB, they show good ductility. Because of its resilience to stress cracking, biofouling, and seawater corrosion, as well as its consistent thermal and electrical conductivity, the alloy works remarkably well in maritime settings.
| Specification | ASTM B122 / ASME SB122 |
|---|---|
| Thickness | Plate 0125″ to 5.00″ / Sheets 008″ to .0125″ |
| Sheet / Plates Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Sheet / Plates Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Sheets Hardness | Half Hard, Quarter Hard, Soft, Hard, Spring Hard |
| Plate / Sheets Size | 15NB to 150NB In |
| Tempers | Annealed, 1/4, 1/2 Hard, 3/4 Hard, Full Hard |
| Coils Thickness | 0.3 mm to 120 mm |
| Coils Length | AS PER CUSTOMER’S REQUIREMENT |
| Form | Sheets, Plates, Coils, Strips, Circle, Ring, Disc, Foils |
| Value Added Service | Cladding, Heat Treatment, Annealed, Pickling, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 90/10 | 88.6 min | 1.0 max | .05 max | 9-11 max | 1.8 max | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Copper Nickel 90-10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| 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.
| Steel Coil | Size (mm) | Weight per Coil (Kg) | Size(mm) | Weight per Coil (Kg) |
|---|---|---|---|---|
| Copper Nickel 90/10 Coil | 4000 x 2000 x 2.0 | 136.0 | 3000 x 1500 x 5.0 | 191.0 |
| Copper Nickel 90/10 Coil | 4000 x 2000 x 3.0 | 204.0 | 4000 x 2000 x 5.0 | 340.0 |
| Copper Nickel 90/10 Coil | 2500 x 1250 x 4.0 | 106.0 | 2500 x 1250 x 6.0 | 159.0 |
| Copper Nickel 90/10 Coil | 3000 x 1500 x 4.0 | 153.0 | 3000 x 1500 x 6.0 | 230.0 |
| Copper Nickel 90/10 Coil | 4000 x 2000 x 4.0 | 272.0 | 4000 x 2000 x 6.0 | 408.0 |
| Copper Nickel 90/10 Coil | 2500 x 1250 x 5.0 | 133.0 |
Copper nickel 90/10 coil offers several advantages, such as exceptional corrosion resistance, especially in seawater and harsh marine environments, making it ideal for marine applications such as heat exchangers and shipbuilding Provides excellent strength, durability and high resistance to compression cracks . The alloy has excellent thermal and electrical conductivity and excellent formability, weldability, making it versatile for various industrial processes Resistance to biofouling helps maintain efficiency in submerged applications, while its low maintenance and service life longer days reduce total costs in complex environments.
Slitting and Coiling for Copper Nickel 90/10 Because of their great resistance to corrosion and biofouling, coils are used extensively in both marine and offshore applications, including shipbuilding, piping systems, condensers, and seawater cooling systems. These coils are favoured for heat exchangers and evaporators in power plants and desalination facilities. They are also used in refrigeration systems, hydraulic lines, and chemical processing. They are also appropriate for fuel gas scrubbers and firewater systems due to their superior weldability and thermal conductivity. These coils are perfect in situations where consistent operational performance requires long-term durability and resistance to harsh environments.
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