C71640, also known as Copper-Nickel 70/30 or CuNi 70/30, is a high-performance copper-nickel alloy that consists of approximately 70% copper and 30% nickel, with small amounts of iron and manganese. This alloy is widely used for its excellent corrosion resistance, particularly in marine and seawater environments. Like other copper-nickel alloys, C71640 is known for its durability, resistance to biofouling, and good mechanical properties, making it suitable for a variety of industrial applications.

Chemical Composition:

Copper (Cu): 66.5 - 70%
Nickel (Ni): 29 - 33%
Iron (Fe): 0.4 - 0.8% (for added strength and improved resistance to seawater corrosion)
Manganese (Mn): 1.0% max
Other Elements: Trace amounts of sulfur, phosphorus, carbon, and silicon

Key Properties:

Corrosion Resistance
High Strength and Durability
Thermal and Electrical Conductivity
Erosion and Abrasion Resistance
Weldability and Formability

Applications:

Marine Applications:
Desalination Plants
Oil and Gas Industry
Power Generation
Chemical Processing
Shipbuilding and Naval Applications
Automotive and Transportation
Environmental Control Systems

Inquiry Cart 0

B111 C71640 Copper Nickel Alloy 70/30 Enhanced Heat Transfer Condenser Tube

Stainless Steel Heat Exchanger Tube

Studded Tube

Duplex Stainless Steel Heat Exchanger Tube

Solid Fin Tube

Serrated Finned Tube

Embedded G Fin Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Extruded Fin Tube

Titanium Alloy Steel Heat Exchanger Tube

Wound Fin Tube

Alloy Steel Heat Exchanger Tube

Low Fin Tube

Square Fin Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Nickel Alloy Steel Boiler Tube

Fin Tube Support

Stainless Steel Boiler Tube

Return Bend

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

B111 C71640 Copper Nickel Alloy 70/30 Enhanced Heat Transfer Condenser Tube