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C12900 Copper vs. C78200 Nickel Silver

Both C12900 copper and C78200 nickel silver are copper alloys. They have 65% of their average alloy composition in common. There are 29 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 C12900 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, % 2.8 to 50
3.0 to 40
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
43
Shear Strength, MPa 150 to 210
280 to 400
Tensile Strength: Ultimate (UTS), MPa 220 to 420
370 to 630
Tensile Strength: Yield (Proof), MPa 75 to 380
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1080
1000
Melting Onset (Solidus), °C 1030
970
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 380
48
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
11
Electrical Conductivity: Equal Weight (Specific), % IACS 98
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
28
Density, g/cm3 9.0
8.4
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 41
52
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 88
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 640
130 to 1440
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.8 to 13
12 to 21
Strength to Weight: Bending, points 9.1 to 14
14 to 19
Thermal Diffusivity, mm2/s 110
15
Thermal Shock Resistance, points 7.8 to 15
12 to 21

Alloy Composition

Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Copper (Cu), % 99.88 to 100
63 to 67
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0 to 0.0040
1.5 to 2.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.050
7.0 to 9.0
Silver (Ag), % 0 to 0.054
0
Tellurium (Te), % 0 to 0.025
0
Zinc (Zn), % 0
20.2 to 28.5
Residuals, % 0
0 to 0.5

Comparable Variants