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C72500 Copper-nickel vs. C70400 Copper-nickel

Both C72500 copper-nickel and C70400 copper-nickel are copper alloys. They have a moderately high 94% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C72500 copper-nickel and the bottom bar is C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 45
45
Tensile Strength: Ultimate (UTS), MPa 420 to 780
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 1130
1120
Melting Onset (Solidus), °C 1060
1060
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 54
64
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
14
Electrical Conductivity: Equal Weight (Specific), % IACS 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 35
32
Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 3.6
3.0
Embodied Energy, MJ/kg 55
47
Embodied Water, L/kg 320
300

Common Calculations

Stiffness to Weight: Axial, points 7.6
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 24
9.3 to 9.8
Strength to Weight: Bending, points 14 to 21
11 to 12
Thermal Diffusivity, mm2/s 16
18
Thermal Shock Resistance, points 14 to 27
10 to 11

Alloy Composition


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Copper (Cu), % 85.2 to 89.7
89.8 to 93.6
Iron (Fe), % 0 to 0.6
1.3 to 1.7
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.2
0.3 to 0.8
Nickel (Ni), % 8.5 to 10.5
4.8 to 6.2
Tin (Sn), % 1.8 to 2.8
0
Zinc (Zn), % 0 to 0.5
0 to 1.0
Residuals, % 0 to 0.2
0 to 0.5