Copper nickel 90-10

Physical properties

[#fabrication-and-heat-treatment]Fabrication and heat treatment[#fabrication-and-heat-treatment]

Copper Nickel 90/10 is a versatile and durable material that can be processed through both hot and cold working methods. Alloy copper nickel 90/10 is especially suited for the formation of wrought materials that can be shaped into various forms for a wide range of applications. While both working methods are effective, cold working is generally preferred as it enhances the mechanical properties and final surface quality of the material. The hot working temperature range for copper nickel alloy lies between 800°C and 900°C, making it ideal for applications requiring thermal stability during fabrication.

UNS C70600, commonly referred to as Copper Nickel 90/10, is annealed at temperatures between 593°C and 816°C (1100°F to 1500°F). The annealing process plays a critical role in improving the ductility of alloy copper nickel 90/10 and reducing internal stresses, making the material more adaptable for demanding applications. This nickel alloy 90/10 maintains good strength even at moderately elevated temperatures, ensuring durability and stability.

Additionally, copper nickel 90/10 is well-regarded for its excellent weldability. This property allows the alloy to be joined effectively without compromising its inherent strength and corrosion resistance. As such, alloy copper nickel 90/10 is extensively used in marine, industrial, and architectural sectors where reliability and longevity are essential.

The superior properties of nickel alloy 90/10, including its ability to withstand harsh environmental conditions, ensure its continued popularity for condenser tubes, heat exchangers, and marine equipment. Its combination of excellent workability, high-temperature strength, and weldability makes copper nickel 90/10 a preferred material in applications that demand performance and durability.

Copper nickel alloy 90/10 exemplifies a perfect balance of strength, corrosion resistance, and workability. Its widespread applications highlight its role as an indispensable material in industries requiring both reliability and versatility.

‍[#corrosion-resistance]The corrosion resistance of copper nickel alloy[#corrosion-resistance]

Copper nickel 90/10 is a copper-based alloy developed as a cost-effective alternative to the more expensive copper-nickel 70/30. The addition of approximately 1.4% iron to the alloy increases its resistance to general corrosion, erosion, and impingement corrosion, which can occur due to the high-speed turbulent flow of water mixed with air bubbles and silt. The unique combination of copper and nickel in this alloy offers excellent durability in harsh marine environments, particularly in seawater.

Alloy copper nickel 90/10 is known for its outstanding resistance to chloride pitting and crevice corrosion, which are common in environments with high chloride concentrations, such as seawater. Additionally, copper nickel 90/10 has remarkable resistance to stress corrosion cracking caused by ammonia and sulfide ions. This alloy also resists biofouling, a problem caused by the accumulation of marine organisms on metal surfaces, thanks to the release of copper ions, which act as a natural biocide.

Nickel Alloy 90/10 is also resistant to pitting and crevice corrosion in still seawater, making it an ideal material for marine applications, including shipbuilding, desalination plants, and underwater pipelines. This alloy offers steel workers excellent resistance to stress corrosion, erosion, and biofouling in both seawater and brackish water, contributing to longer-lasting and more reliable structures. Furthermore, copper nickel 90/10 possesses excellent fabrication and welding properties, and it maintains its mechanical properties even in cryogenic temperatures, making it a versatile and dependable material in various industries.

‍Applications of 90 10 copper nickel alloy

Copper nickel 90/10 has undergone rigorous tests and proven to have exceptional antimicrobial properties. This remarkable alloy can eliminate 99.9% of harmful organisms within just two hours, including dangerous bacteria and viruses like MRSA, influenza A (H1N1), E. coli, and Clostridium difficile. Due to these impressive antimicrobial effects, copper nickel 90/10 has become increasingly in demand for use in various healthcare and sanitary environments, making it a vital component in hospitals, nursing homes, kitchens, and other high-hygiene areas.

Alloy copper nickel 90/10 is gaining popularity in healthcare units where the prevention of infection is a top priority. Its antimicrobial properties provide an added layer of protection, helping to reduce the spread of harmful pathogens on frequently touched surfaces. In addition to healthcare settings, the use of copper nickel 90/10 in kitchens ensures a safer environment by preventing bacterial contamination and promoting better food safety. This makes it a preferred material for countertops, sink fittings, and food preparation surfaces.

Nickel Alloy 90/10 has proven to be highly effective in environments where sanitation and hygiene are critical. The copper component in the alloy naturally kills microorganisms, providing an ongoing defense against bacterial growth. This antimicrobial benefit, combined with the alloy’s strength and resistance to corrosion, makes copper nickel 90/10 an ideal choice for ensuring cleaner and more sanitary surfaces in a variety of applications. Additionally, its durability and resistance to harsh conditions make it a reliable long-term solution for these settings.

‍For better understanding, here are specifications of copper nickel 90 10 alloy

One of the major applications of copper nickel 90 10 is marine industries where it proves its good electrical and thermal conductivities as well as corrosion resistance with ease of fabrication of various equipment. The copper nickel alloy 90 10 is a material of selection for condensers and heat exchangers where seawater is utilized as a coolant especially in desalination plants.

Copper nickel 90 10 is also widely used in:

• Offshore platform seawater piping
• Tidewater power plants
• Desalination plants
• Oil refineries, and in the chemical process industry.

[#applications]Product applications of copper nickel alloy 90 10 are:[#applications]

• Condenser tubes and plates
• Distiller tubes
• Tube sheets and baffles for condensers
• Heat exchangers
• Evaporator and heat exchanger tubes
• Saltwater piping
• Water boxes
• Ship hulls
• Hot water tanks.

NOTE: Copper nickel 90/10 is a registered trademark of Special Metals Corporation.