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C82400 Copper vs. C78200 Nickel Silver

Both C82400 copper and C78200 nickel silver are copper alloys. They have 66% of their average alloy composition in common. There are 27 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 C82400 copper and the bottom bar is C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.0 to 20
3.0 to 40
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 45
43
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
370 to 630
Tensile Strength: Yield (Proof), MPa 260 to 970
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 270
160
Melting Completion (Liquidus), °C 1000
1000
Melting Onset (Solidus), °C 900
970
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 130
48
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
11
Electrical Conductivity: Equal Weight (Specific), % IACS 26
12

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.4
Embodied Carbon, kg CO2/kg material 8.9
3.3
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 83
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
130 to 1440
Stiffness to Weight: Axial, points 7.6
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16 to 33
12 to 21
Strength to Weight: Bending, points 16 to 26
14 to 19
Thermal Diffusivity, mm2/s 39
15
Thermal Shock Resistance, points 17 to 36
12 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
63 to 67
Iron (Fe), % 0 to 0.2
0 to 0.35
Lead (Pb), % 0 to 0.020
1.5 to 2.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.2
7.0 to 9.0
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0
Zinc (Zn), % 0 to 0.1
20.2 to 28.5
Residuals, % 0
0 to 0.5