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C71640 Copper-nickel vs. C67400 Bronze

Both C71640 copper-nickel and C67400 bronze are copper alloys. They have 62% of their average alloy composition in common. There are 26 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 C71640 copper-nickel and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 52
41
Tensile Strength: Ultimate (UTS), MPa 490 to 630
480 to 610
Tensile Strength: Yield (Proof), MPa 190 to 460
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 240
190
Maximum Temperature: Mechanical, °C 260
130
Melting Completion (Liquidus), °C 1180
890
Melting Onset (Solidus), °C 1120
870
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 29
100
Thermal Expansion, µm/m-K 15
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
23
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
26

Otherwise Unclassified Properties

Base Metal Price, % relative 40
23
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 5.0
2.8
Embodied Energy, MJ/kg 73
48
Embodied Water, L/kg 280
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 750
300 to 660
Stiffness to Weight: Axial, points 8.7
7.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 15 to 20
17 to 22
Strength to Weight: Bending, points 16 to 18
17 to 20
Thermal Diffusivity, mm2/s 8.2
32
Thermal Shock Resistance, points 16 to 21
16 to 20

Alloy Composition


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Aluminum (Al), % 0
0.5 to 2.0
Copper (Cu), % 61.7 to 67.8
57 to 60
Iron (Fe), % 1.7 to 2.3
0 to 0.35
Lead (Pb), % 0 to 0.050
0 to 0.5
Manganese (Mn), % 1.5 to 2.5
2.0 to 3.5
Nickel (Ni), % 29 to 32
0 to 0.25
Silicon (Si), % 0
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 1.0
31.1 to 40
Residuals, % 0 to 0.5
0 to 0.5