CuNi Alloy CuNi30 NC035 Durable Copper Nickel Alloy For Chemical Environments

Product Specification

CuNi Alloy CuNi30 NC035 The Durable Copper-Nickel Alloy for Chemical Environments

CuNi30 NC035 Wire is a copper-nickel alloy consisting of approximately 30% nickel and 70% copper, known for its excellent combination of corrosion resistance, mechanical strength, and thermal stability. This alloy is widely used in demanding environments such as marine applications, chemical processing, and high-temperature operations due to its robustness and reliability.

CuNi30 NC035 Wire is a highly durable copper-nickel alloy known for its exceptional corrosion resistance, mechanical strength, and thermal conductivity. It is particularly suited for harsh environments, including marine, chemical processing, and high-temperature applications. While more expensive than other copper-based alloys, its superior performance in corrosive and high-stress conditions makes it a valuable material for critical applications. Whether used in seawater systems, heat exchangers, or industrial piping, CuNi30 provides reliable, long-lasting performance, making it an ideal choice for demanding industries.

Main physical properties:

Main technical data

Technical data table

• Tolerance of ohm/m: ±5%
• Round wire: range from 0.04mm (0.0016″) to 12mm (0.4724″)
• Ribbon: range from 0.05mm (0.002″) to 6mm (0.2362″), Max ratio width : thickness = 10:1

Key Features of CuNi30 NC035 Wire:

• Composition:

Copper (Cu): Approximately 70%.

Nickel (Ni): Approximately 30%, contributing to enhanced corrosion resistance and mechanical properties.

• Corrosion Resistance:

Exceptional Seawater Resistance: CuNi30 offers superior resistance to seawater corrosion, including protection against biofouling and stress corrosion cracking, making it ideal for marine and offshore applications.

Chemical Resistance: Performs well in environments exposed to acids, alkalis, and other industrial chemicals, particularly in neutral and mildly acidic conditions.

Oxidation Resistance: Maintains its properties in high-temperature oxidative environments.

• Mechanical Properties:

High Strength and Toughness: Offers robust mechanical properties with good tensile strength and durability, ensuring reliable performance under stress.

Good Ductility: Easily formed into complex shapes or components without compromising its structural integrity.

Work Hardening Capability: Can be strengthened through cold working for additional mechanical performance.

• Thermal and Electrical Conductivity:

Thermal Conductivity: Provides efficient heat transfer, making it suitable for heat exchangers and thermal applications.

Moderate Electrical Conductivity: While not as conductive as pure copper, CuNi30 delivers sufficient electrical performance for many applications requiring durability and conductivity.

• Non-Magnetic Properties:

Completely non-magnetic, making it suitable for sensitive applications where magnetic interference must be minimized.

• Weldability and Fabrication:

Excellent Weldability: Easy to weld using standard methods, ensuring a seamless connection for industrial or marine systems.

Machinability: Can be fabricated into wires, tubes, or sheets with precision, allowing for versatile applications in various industries.

• High-Temperature Performance:

Retains strength and stability in high-temperature environments, operating reliably up to approximately 300°C (572°F).

Applications:

• Marine and Offshore: Ideal for seawater piping, heat exchangers, condenser tubes, and shipbuilding due to its resistance to biofouling and corrosion.
• Chemical Processing: Used in chemical plants, heat exchangers, and piping systems that handle corrosive chemicals.
• Desalination Plants: Commonly employed in evaporators, condensers, and distillation equipment for saltwater applications.
• Power Generation: Used in cooling systems and heat exchangers for thermal power plants.
• Automotive Applications: Utilized in components such as braking systems and hydraulic lines where durability and corrosion resistance are critical.
• Electrical and Electronics: Suitable for resistance wires, connectors, and terminals in environments requiring corrosion resistance.

Advantages of CuNi30 NC035 Wire:

• Corrosion Resistance: Outstanding performance in seawater and chemically aggressive environments.
• High Strength and Durability: Robust mechanical properties ensure long-lasting performance under mechanical stress and environmental exposure.
• Thermal Stability: Performs well in applications requiring consistent thermal conductivity and stability under temperature fluctuations.
• Non-Magnetic: Ideal for applications where magnetic interference is a concern.
• Long-Term Reliability: Offers extended service life, reducing maintenance and replacement costs.

Limitations of CuNi30 NC035 Wire:

• Cost: The higher nickel content makes CuNi30 more expensive than lower nickel alloys or pure copper.
• Electrical Conductivity: While adequate, its electrical conductivity is lower than that of pure copper, which may limit its use in applications requiring maximum conductivity.
• Limited Extreme High-Temperature Use: Although it performs well up to 300°C, other specialized alloys may be more suitable for temperatures exceeding this range.