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C78200 Nickel Silver vs. CR020A Copper

Both C78200 nickel silver and CR020A copper are copper alloys. They have 65% of their average alloy composition in common. There are 28 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 C78200 nickel silver and the bottom bar is CR020A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 3.0 to 40
15
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 370 to 630
220
Tensile Strength: Yield (Proof), MPa 170 to 570
130

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 1000
1090
Melting Onset (Solidus), °C 970
1040
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 48
380
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
100
Electrical Conductivity: Equal Weight (Specific), % IACS 12
100

Otherwise Unclassified Properties

Base Metal Price, % relative 28
31
Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 52
41
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 120
29
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1440
76
Stiffness to Weight: Axial, points 7.4
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12 to 21
6.8
Strength to Weight: Bending, points 14 to 19
9.0
Thermal Diffusivity, mm2/s 15
110
Thermal Shock Resistance, points 12 to 21
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 63 to 67
99.95 to 99.999
Iron (Fe), % 0 to 0.35
0
Lead (Pb), % 1.5 to 2.5
0 to 0.0050
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 7.0 to 9.0
0
Phosphorus (P), % 0
0.0010 to 0.0060
Silver (Ag), % 0
0 to 0.015
Zinc (Zn), % 20.2 to 28.5
0
Residuals, % 0 to 0.5
0