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CR012A Copper vs. C77300 Nickel Silver

Both CR012A copper and C77300 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 48% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is CR012A copper and the bottom bar is C77300 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 220
540

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
940
Melting Onset (Solidus), °C 1040
920
Specific Heat Capacity, J/kg-K 390
390
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 100
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 33
26
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 42
56
Embodied Water, L/kg 360
310

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.7
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
19
Strength to Weight: Bending, points 9.0
19
Thermal Shock Resistance, points 7.8
17

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.85 to 99.94
46 to 50
Lead (Pb), % 0
0 to 0.050
Nickel (Ni), % 0
9.0 to 11
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.25
Silicon (Si), % 0
0.040 to 0.25
Silver (Ag), % 0.060 to 0.080
0
Zinc (Zn), % 0
37.9 to 45
Residuals, % 0
0 to 0.5