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C72500 Copper-nickel vs. C86700 Bronze

Both C72500 copper-nickel and C86700 bronze are copper alloys. They have 60% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C72500 copper-nickel and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 45
41
Tensile Strength: Ultimate (UTS), MPa 420 to 780
630

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 1130
880
Melting Onset (Solidus), °C 1060
860
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 54
89
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
17
Electrical Conductivity: Equal Weight (Specific), % IACS 11
19

Otherwise Unclassified Properties

Base Metal Price, % relative 35
23
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 3.6
2.9
Embodied Energy, MJ/kg 55
49
Embodied Water, L/kg 320
340

Common Calculations

Stiffness to Weight: Axial, points 7.6
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13 to 24
22
Strength to Weight: Bending, points 14 to 21
21
Thermal Diffusivity, mm2/s 16
28
Thermal Shock Resistance, points 14 to 27
21

Alloy Composition


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Aluminum (Al), % 0
1.0 to 3.0
Copper (Cu), % 85.2 to 89.7
55 to 60
Iron (Fe), % 0 to 0.6
1.0 to 3.0
Lead (Pb), % 0 to 0.050
0.5 to 1.5
Manganese (Mn), % 0 to 0.2
1.0 to 3.5
Nickel (Ni), % 8.5 to 10.5
0 to 1.0
Tin (Sn), % 1.8 to 2.8
0 to 1.5
Zinc (Zn), % 0 to 0.5
30 to 38
Residuals, % 0 to 0.2
0 to 1.0