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C82000 Copper vs. C74400 Nickel Silver

Both C82000 copper and C74400 nickel silver are copper alloys. They have 64% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C82000 copper and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 8.0 to 20
43
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 45
39
Tensile Strength: Ultimate (UTS), MPa 350 to 690
350
Tensile Strength: Yield (Proof), MPa 140 to 520
120

Thermal Properties

Latent Heat of Fusion, J/g 220
180
Maximum Temperature: Mechanical, °C 220
140
Melting Completion (Liquidus), °C 1090
930
Melting Onset (Solidus), °C 970
910
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 260
120
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
26
Electrical Conductivity: Equal Weight (Specific), % IACS 46
29

Otherwise Unclassified Properties

Base Metal Price, % relative 60
25
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 5.0
2.9
Embodied Energy, MJ/kg 77
48
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51 to 55
120
Resilience: Unit (Modulus of Resilience), kJ/m3 80 to 1120
63
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11 to 22
12
Strength to Weight: Bending, points 12 to 20
14
Thermal Diffusivity, mm2/s 76
37
Thermal Shock Resistance, points 12 to 24
12

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Beryllium (Be), % 0.45 to 0.8
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 2.2 to 2.7
0
Copper (Cu), % 95.2 to 97.4
62 to 66
Iron (Fe), % 0 to 0.1
0 to 0.050
Lead (Pb), % 0 to 0.020
0 to 0.050
Nickel (Ni), % 0 to 0.2
2.0 to 4.0
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
29.6 to 36
Residuals, % 0
0 to 0.3