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C70620 Copper-nickel vs. C61800 Bronze

Both C70620 copper-nickel and C61800 bronze are copper alloys. They have 90% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C70620 copper-nickel and the bottom bar is C61800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.34
Rockwell B Hardness 65 to 87
89
Shear Modulus, GPa 46
44
Tensile Strength: Ultimate (UTS), MPa 300 to 570
740

Thermal Properties

Latent Heat of Fusion, J/g 220
230
Maximum Temperature: Mechanical, °C 220
220
Melting Completion (Liquidus), °C 1120
1050
Melting Onset (Solidus), °C 1060
1040
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 49
64
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 33
28
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 3.4
3.1
Embodied Energy, MJ/kg 51
52
Embodied Water, L/kg 300
390

Common Calculations

Stiffness to Weight: Axial, points 7.7
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 9.3 to 18
25
Strength to Weight: Bending, points 11 to 17
22
Thermal Diffusivity, mm2/s 14
18
Thermal Shock Resistance, points 10 to 20
26

Alloy Composition


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Aluminum (Al), % 0
8.5 to 11
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 86.5 to 90
86.9 to 91
Iron (Fe), % 1.0 to 1.8
0.5 to 1.5
Lead (Pb), % 0 to 0.020
0 to 0.020
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.5
0 to 0.020
Residuals, % 0 to 0.5
0 to 0.5