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CR020A Copper vs. C77100 Nickel Silver

Both CR020A copper and C77100 nickel silver are copper alloys. They have 54% of their average alloy composition in common. There are 26 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 CR020A copper and the bottom bar is C77100 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
45
Tensile Strength: Ultimate (UTS), MPa 220
600
Tensile Strength: Yield (Proof), MPa 130
540

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1090
990
Melting Onset (Solidus), °C 1040
950
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 380
40
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
27
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 41
56
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 76
1280
Stiffness to Weight: Axial, points 7.2
7.8
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
21
Strength to Weight: Bending, points 9.0
20
Thermal Diffusivity, mm2/s 110
13
Thermal Shock Resistance, points 7.8
19

Alloy Composition


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Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.95 to 99.999
52 to 56
Lead (Pb), % 0 to 0.0050
0 to 0.030
Manganese (Mn), % 0
0 to 0.9
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0.0010 to 0.0060
0
Silver (Ag), % 0 to 0.015
0
Zinc (Zn), % 0
30.6 to 39
Residuals, % 0
0 to 0.5