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| Customization: | Available |
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| Color: | Copper |
| Material: | Copper |
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Ni | Si | Cr | Cu | |||
1.8-2.5 | 0.2-0.8 | 0.5-1.2 | Remainder |
Mechanical Properties | Tensile Strength: ~ 450 – 700 MPa (depending on temper and processing) Yield Strength: ~ 350 – 600 MPa Hardness: ~ 140 – 200 HV (can be higher after cold working and aging) Good Wear and Fatigue Resistance: Allows long-term performance in high-load and cyclic applications Maintains structural integrity under prolonged stress |
Electrical and Thermal Conductivity | Electrical Conductivity: ~ 45 – 60% IACS, higher than most high-strength alloys, though lower than C18150 Thermal Conductivity: High, enabling efficient heat dissipation in welding and power transfer applications Stable conductivity after prolonged service at elevated temperatures |
High-Temperature Performance | C18000 retains its strength and hardness better than many standard copper alloys when subjected to elevated temperatures. This makes it highly suitable for resistance welding electrodes and high-load electrical contacts, where both conductivity and heat resistance are critical. |
Processing and Workability | Can be machined, hot worked, and cold worked before aging treatments Exhibits good machinability compared with higher-strength alloys like beryllium copper Amenable to joining methods such as brazing and welding, though electrode service parts are generally manufactured through machining Can be surface-coated (e.g., nickel or chromium plating) to extend service life in harsh environment |
Stress Relaxation Resistance | C18000 shows excellent stress relaxation properties, meaning that springs, connectors, and contact parts retain their force and electrical contact reliability over time, even under elevated service conditions. |
Resistance Welding | Electrodes for spot welding and seam welding Holders, shanks, and adaptors in welding equipment Provides longer service life than pure copper due to its higher strength and wear resistance Ensures consistent current flow and reduced heat loss at electrode contact points |
Aerospace Industry | High-performance connectors and terminals in aircraft systems Components exposed to thermal cycling and high electrical currents Parts in propulsion systems and turbine components requiring conductivity and oxidation resistance |
Automotive industry | Resistance welding electrodes for automotive body assembly Electrical connectors and terminals in hybrid and electric vehicles (EVs) Components for battery management systems requiring both conductivity and durability |
Marine Industry | Corrosion-resistant components in shipbuilding and offshore equipment Electrical contacts and connectors exposed to saltwater environments Heat exchangers and cooling elements where both conductivity and corrosion resistance are essential |
Electrical and Power Generation | Switchgear components and busbars Electrical connectors requiring long service life under repeated current cycles Terminals and contacts in power plants and renewable energy systems (e.g., wind turbines, solar power inverters) |
Industrial Equipment | Non-magnetic parts in precision instruments Bearings and bushings where mechanical wear resistance is critical Heat-dissipating components in heavy-duty machinery |
Medical Devices | High-reliability connectors and switches in diagnostic and imaging systems Components requiring spark resistance, conductivity, and durability in sensitive environments |





