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C75700 Nickel Silver vs. C78200 Nickel Silver

Both C75700 nickel silver and C78200 nickel silver are copper alloys. They have a very high 96% of their average alloy composition in common. There are 29 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 C75700 nickel silver 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, % 3.2 to 22
3.0 to 40
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 45
43
Shear Strength, MPa 350 to 370
280 to 400
Tensile Strength: Ultimate (UTS), MPa 590 to 610
370 to 630
Tensile Strength: Yield (Proof), MPa 470 to 580
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 1040
1000
Melting Onset (Solidus), °C 990
970
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 40
48
Thermal Expansion, µm/m-K 16
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 30
28
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 3.6
3.3
Embodied Energy, MJ/kg 56
52
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
130 to 1440
Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 20
12 to 21
Strength to Weight: Bending, points 19
14 to 19
Thermal Diffusivity, mm2/s 12
15
Thermal Shock Resistance, points 22 to 23
12 to 21

Alloy Composition

Copper (Cu), % 63.5 to 66.5
63 to 67
Iron (Fe), % 0 to 0.25
0 to 0.35
Lead (Pb), % 0 to 0.050
1.5 to 2.5
Manganese (Mn), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 11 to 13
7.0 to 9.0
Zinc (Zn), % 19.2 to 25.5
20.2 to 28.5
Residuals, % 0 to 0.5
0 to 0.5

Comparable Variants