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C71640 Copper-nickel vs. C22000 Bronze

Both C71640 copper-nickel and C22000 bronze are copper alloys. They have 65% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is C22000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 52
42
Tensile Strength: Ultimate (UTS), MPa 490 to 630
260 to 520
Tensile Strength: Yield (Proof), MPa 190 to 460
69 to 500

Thermal Properties

Latent Heat of Fusion, J/g 240
200
Maximum Temperature: Mechanical, °C 260
180
Melting Completion (Liquidus), °C 1180
1040
Melting Onset (Solidus), °C 1120
1020
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 29
190
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
44
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
45

Otherwise Unclassified Properties

Base Metal Price, % relative 40
29
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 5.0
2.6
Embodied Energy, MJ/kg 73
42
Embodied Water, L/kg 280
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 750
21 to 1110
Stiffness to Weight: Axial, points 8.7
7.2
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 15 to 20
8.1 to 17
Strength to Weight: Bending, points 16 to 18
10 to 17
Thermal Diffusivity, mm2/s 8.2
56
Thermal Shock Resistance, points 16 to 21
8.8 to 18

Alloy Composition


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Copper (Cu), % 61.7 to 67.8
89 to 91
Iron (Fe), % 1.7 to 2.3
0 to 0.050
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 1.5 to 2.5
0
Nickel (Ni), % 29 to 32
0
Zinc (Zn), % 0 to 1.0
8.7 to 11
Residuals, % 0 to 0.5
0 to 0.2