Product Description
C70800 CuNi11
CuNi11 is a copper-nickel alloy (CuNi alloy) with medium-low resistivity for use at temperatures up to 400°C (750°F). The alloy CuNi11 is typically used for applications such as heating cables, fuses, shunts, resistors and various types of controllers.
| Chemical Composition: |
| | Ni % | Cu % |
| Nominal composition | 11 | Bal. |
| Mechanical properties: |
| Wire size | Yield strength | Tensile strength | Elongation |
| Ø | Rp0.2 | Rm | A |
| Mm | MPa | MPa | % |
| 1 | 100 | 130 | 30 |
| Physical Properties: |
| Density g/cm3 | 8.9 |
| Electrical resistivity at 20°C O mm2/m | 0.15 |
| Temperature factor of resistivity: |
| Temperature°C | 20 | 100 | 200 | 300 | |
| Ct | 1 | 1.06 | 1.11 | 1.19 | |
| Coefficient of thermal expansion: |
| Temperature°C | Thermal Expansion x10-6/K |
| 20 - 100 | 16 |
| Thermal conductivity: |
| Temperature°C | 20 |
| W m-1 K-1 | 90 |
| Specific Heat Capacity: |
| Temperature°C | 20 |
| kJ kg-1 K-1 | 0.38 |
| Melting point °C | 1090 |
| Max continuous operating temperature in air °C | 300 |
| Magnetic properties | The material is non-magnetic |
Exceptional Corrosion Resistance for Marine ApplicationsC70800 Copper Nickel Alloy provides outstanding protection against seawater corrosion and biofouling, making it a preferred choice for marine components such as heat exchangers and condensers. This durability helps extend the operational life of equipment, reducing replacement frequency and maintenance costs for users in coastal and offshore environments.
Versatile Forms and Custom DimensionsThe alloy is supplied in multiple formsincluding strip, sheet, plate, and coilwith customizable lengths and widths. Thicknesses from 0.4 to 5 mm allow tailored solutions for diverse engineering requirements. Whether you need a specific shape, finish, or size, C70800 can be processed to suit high-performance industrial needs.
FAQs of C70800 CuNi 11:
Q: How is C70800 Copper Nickel Alloy typically processed for industrial use?
A: C70800 is processed into strips, sheets, plates, and coils, undergoing polishing to achieve a bright surface finish. It can be cut to custom lengths and widths, and rolled or shaped as needed for specific applications. The alloys formability ensures it meets the stringent demands of heat exchangers, condensers, and marine equipment.
Q: What benefits does C70800 offer in heat exchanger and condenser applications?
A: The alloys excellent resistance to corrosion and biofouling in water environments ensures reliable, long-term service in heat exchangers and condensers. Its high strength and stable conductivity make it suitable for demanding thermal and mechanical conditions, reducing maintenance cycles and operational downtime.
Q: Where can C70800 Copper Nickel Alloy be sourced in India?
A: C70800 is widely available from various distributors, manufacturers, exporters, suppliers, and traders throughout India. These organizations offer custom fabrication and supply services, accommodating both standard and specialized requirements for industrial clients.
Q: What is the typical usage temperature range for C70800 alloy?
A: C70800 can be safely used at temperatures up to 400C, making it suitable for a range of industrial processes that require long-lasting materials capable of withstanding elevated heat without degradation.
Q: When should C70800 be selected over other copper alloys?
A: Choose C70800 for applications where excellent corrosion resistance, high strength, and good thermal conductivity are crucial, such as marine components, heat exchangers, and condensers, especially in environments exposed to saltwater or aggressive media.
Q: What surface treatments are available for C70800 products?
A: C70800 alloy is commonly supplied with a polished, bright finish to enhance appearance and resistance to surface corrosion. Additional finishing processes can be incorporated as requested to meet specific project standards.