C72150 Cupronickel is a high-performance copper-nickel alloy. Its excellent corrosion resistance, good machinability, and stable electrical and thermal conductivity make it widely used in industry and precision manufacturing. By adjusting the ratios of elements such as nickel and iron, this alloy achieves a balance of strength and ductility, making it suitable for use in a variety of complex environments.
Chemical Composition
C72150 Cupronickel is primarily composed of copper (Cu) and nickel (Ni), with the nickel content being approximately 30%. Small amounts of elements such as iron (Fe) and manganese (Mn) are added to optimize performance. Typical composition ranges are as follows:
- Copper (Cu): Balance
- Nickel (Ni): 29%-33%
- Iron (Fe): 0.5%-1.5%
- Manganese (Mn): ≤1.0%
The addition of trace elements significantly enhances the alloy's resistance to seawater corrosion and high-temperature stability.
Physical and Mechanical Properties
1. Corrosion Resistance: Excellent performance in seawater, acidic, and alkaline environments, making it particularly suitable for marine engineering applications.
2. Strength and Plasticity: Tensile strength reaches 500-700 MPa, and elongation is approximately 30%-45%, combining high strength with good formability.
3. Electrical and Thermal Conductivity: Electrical conductivity is approximately 6%-10% of pure copper, providing stable thermal conductivity, making it suitable for electrical components.
4. Thermal Stability: No significant performance degradation is observed between -200°C and +300°C, making it suitable for wide operating temperature ranges.
Typical Applications
- Marine Engineering: Ship parts, desalination equipment, submarine cable sheathing, etc.
- Electronics and Electrical: Precision resistors, connectors, relay springs, etc.
- Chemical Equipment: Corrosion-Resistant Components such as heat exchangers, valves, and pump bodies.
- Decorative and Daily Necessities: High-end musical instrument components, jewelry processing, etc.
Processing and Maintenance Recommendations
C72150 cupronickel can be processed using conventional processes such as stamping, cutting, and welding, but care should be taken to avoid oxidation at high temperatures. Regular surface cleaning is recommended for routine maintenance to maintain its gloss and performance. Passivation treatment may be added in highly corrosive environments.
With its balanced chemical and physical properties, C72150 cupronickel is an ideal choice for high-end industrial and civilian applications. Whether it's long-term service in harsh environments or the functional requirements of precision devices, it provides a reliable solution.
why choose us
Professional copper pipe supplier
The company has a cluster of leading copper processing production lines in China, including:
German imported precision copper tube production line (annual output of 30,000 tons)
Japanese technology copper foil rolling line (thinnest up to 6μm)
Fully automatic copper bar continuous extrusion line
Intelligent copper sheet and strip finishing mill unit
Digitalized control and management of the whole production process is realized through MES system, and the dimensional accuracy of the products can reach ±0.01mm.
Contact us today for a quotation：sales@gneesteel.com
Packaging and shipping
GNEE offers professional packaging for exported copper pipes. First, we apply anti-rust oil and plastic film to prevent oxidation. Then, we securely strap with steel straps and add corner protectors. Finally, we place the pipes on wooden pallets and reinforce them with iron or wooden boxes, ensuring they are moisture-proof and impact-resistant during ocean transport, while facilitating easy loading and unloading. All packaging meets export standards.
Customer visits
GNEE participated in the exhibition
