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C81500 Copper vs. C97400 Nickel Silver

Both C81500 copper and C97400 nickel silver are copper alloys. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is C81500 copper and the bottom bar is C97400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
70
Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 17
20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
44
Tensile Strength: Ultimate (UTS), MPa 350
260
Tensile Strength: Yield (Proof), MPa 280
120

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1090
1100
Melting Onset (Solidus), °C 1080
1070
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 320
27
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 83
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
33
Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 2.6
4.1
Embodied Energy, MJ/kg 41
64
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
43
Resilience: Unit (Modulus of Resilience), kJ/m3 330
59
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
8.5
Strength to Weight: Bending, points 12
11
Thermal Diffusivity, mm2/s 91
8.3
Thermal Shock Resistance, points 12
8.8

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
58 to 61
Iron (Fe), % 0 to 0.1
0 to 1.5
Lead (Pb), % 0 to 0.020
4.5 to 5.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
15.5 to 17
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
2.5 to 3.5
Zinc (Zn), % 0 to 0.1
10 to 19.5
Residuals, % 0
0 to 1.0