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In Kolkata, India, Khush Sheets and Plates is a top producer and supplier of Copper Nickel 70/30 Foil, providing high-end goods designed for robustness, resistance to corrosion, and thermal stability. The 70/30 alloy, which is composed of 70% copper and 30% nickel, is renowned for its exceptional performance in both industrial and marine settings. Our foils come in a variety of custom widths and thicknesses and are expertly rolled to satisfy international standards. Khush Sheets and Plates provides customers in the chemical processing, power generation, and marine industries in India and overseas with a dedication to quality, competitive pricing, and prompt delivery.
For added strength and corrosion resistance, Copper Nickel 70/30 Foil contains trace amounts of iron (0.4–1%) and manganese (0.5–1%) in addition to copper (70%) and nickel (30%). The alloy has a yield strength of 150–250 MPa, a tensile strength of 380–550 MPa, and an elongation of up to 30%. In seawater environments, it exhibits exceptional resistance to erosion, stress corrosion cracking, and biofouling. It is also non-magnetic and retains good heat conductivity, which makes it appropriate for demanding industrial and marine applications that call for dependability and strength.
| Specifications | ASTM B122 |
| Dimensional specification | JIS, AISI, ASTM, GB, DIN, EN, etc |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4mm-100mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 70/30 | 65 min | 1.0 max | 0.05 max | 29-33 max | 0.4-1.0 max | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Because of its remarkable resistance to saltwater corrosion and biofouling, copper nickel 70/30 foil finds widespread use in marine applications, such as ship hull cladding, seawater piping, heat exchangers, and condensers. It is utilised in power plants for evaporators, brine heaters, and cooling systems. Additionally, the alloy is used in the chemical industry for process vessels and equipment used for handling acids. It is perfect for thermal insulation wraps, gaskets, and electrical shielding because of its stability and flexibility. It is trusted in settings that require long-term durability and reliable performance due to its strength, resistance to corrosion, and ease of fabrication.
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Kolkata, India
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