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CR007A Copper vs. C78200 Nickel Silver

Both CR007A copper and C78200 nickel silver 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 CR007A 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, % 15
3.0 to 40
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 230
370 to 630
Tensile Strength: Yield (Proof), MPa 140
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1090
1000
Melting Onset (Solidus), °C 1040
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 100
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
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 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 83
130 to 1440
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.1
12 to 21
Strength to Weight: Bending, points 9.3
14 to 19
Thermal Diffusivity, mm2/s 110
15
Thermal Shock Resistance, points 8.1
12 to 21

Alloy Composition


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Antimony (Sb), % 0 to 0.00040
0
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Copper (Cu), % 99.994 to 100
63 to 67
Iron (Fe), % 0 to 0.0010
0 to 0.35
Lead (Pb), % 0 to 0.00050
1.5 to 2.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
7.0 to 9.0
Selenium (Se), % 0 to 0.00020
0
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0
Tellurium (Te), % 0 to 0.00020
0
Zinc (Zn), % 0
20.2 to 28.5
Residuals, % 0
0 to 0.5