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C81500 Copper vs. C71640 Copper-nickel

Both C81500 copper and C71640 copper-nickel 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 (3, in this case) are not shown.

For each property being compared, the top bar is C81500 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 0.34
0.33
Shear Modulus, GPa 44
52
Tensile Strength: Ultimate (UTS), MPa 350
490 to 630
Tensile Strength: Yield (Proof), MPa 280
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Maximum Temperature: Mechanical, °C 200
260
Melting Completion (Liquidus), °C 1090
1180
Melting Onset (Solidus), °C 1080
1120
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 320
29
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 83
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
40
Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 2.6
5.0
Embodied Energy, MJ/kg 41
73
Embodied Water, L/kg 310
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 330
130 to 750
Stiffness to Weight: Axial, points 7.3
8.7
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 11
15 to 20
Strength to Weight: Bending, points 12
16 to 18
Thermal Diffusivity, mm2/s 91
8.2
Thermal Shock Resistance, points 12
16 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
61.7 to 67.8
Iron (Fe), % 0 to 0.1
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
29 to 32
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0 to 1.0
Residuals, % 0 to 0.5
0 to 0.5