Copper/Nickel Alloy Tube (Cu70/Ni30)

Copper/Nickel Alloy Tube (Cu70/Ni30) is a product offered by Goodfellow in its range of high-performance alloy tubing. With 27 variations, these tubes provide excellent corrosion resistance and strength. The copper-nickel alloys are widely used for marine applications as well as in chemical processing, food handling, and power generation where resistance to corrosion is critical. The combination of good mechanical strength and ductility also makes these copper-nickel alloy tubes suitable for applications requiring formed or bent tubing.

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Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Tube

Outside Diameter	=<2mm	±0.05mm
Outside Diameter	2mm - 5mm	±0.1mm
Outside Diameter	>5mm	±5%
Wall Thickness		±10%

Material Properties for Alloys

Mechanical Properties

Element	Value
Elongation at break( % )	<45
Tensile strength( MPa )	410-420

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	37.4
Temperature coefficient( K⁻¹ )	-

Thermal Properties

Element	Value
Melting point( C )	1171
Specific heat( J K⁻¹ kg⁻¹ )	377@23°C
Thermal conductivity( W m⁻¹ K⁻¹ )	29.4
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	16.2@20-300°C