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C82400 Copper vs. C71640 Copper-nickel

Both C82400 copper and C71640 copper-nickel are copper alloys. They have 65% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C82400 copper and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
52
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
490 to 630
Tensile Strength: Yield (Proof), MPa 260 to 970
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 230
240
Maximum Temperature: Mechanical, °C 270
260
Melting Completion (Liquidus), °C 1000
1180
Melting Onset (Solidus), °C 900
1120
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 130
29
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 26
7.1

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 8.9
5.0
Embodied Energy, MJ/kg 140
73
Embodied Water, L/kg 310
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
130 to 750
Stiffness to Weight: Axial, points 7.6
8.7
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16 to 33
15 to 20
Strength to Weight: Bending, points 16 to 26
16 to 18
Thermal Diffusivity, mm2/s 39
8.2
Thermal Shock Resistance, points 17 to 36
16 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 1.6 to 1.9
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 0.2 to 0.65
0
Copper (Cu), % 96 to 98.2
61.7 to 67.8
Iron (Fe), % 0 to 0.2
1.7 to 2.3
Lead (Pb), % 0 to 0.020
0 to 0.050
Manganese (Mn), % 0
1.5 to 2.5
Nickel (Ni), % 0 to 0.2
29 to 32
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0
Zinc (Zn), % 0 to 0.1
0 to 1.0
Residuals, % 0
0 to 0.5