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C75700 Nickel Silver vs. C38500 Bronze

Both C75700 nickel silver and C38500 bronze are copper alloys. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is C75700 nickel silver and the bottom bar is C38500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 3.2 to 22
17
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 45
37
Shear Strength, MPa 350 to 370
230
Tensile Strength: Ultimate (UTS), MPa 590 to 610
370
Tensile Strength: Yield (Proof), MPa 470 to 580
130

Thermal Properties

Latent Heat of Fusion, J/g 200
160
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 1040
890
Melting Onset (Solidus), °C 990
880
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 40
120
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
31

Otherwise Unclassified Properties

Base Metal Price, % relative 30
22
Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 3.6
2.6
Embodied Energy, MJ/kg 56
45
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
48
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
78
Stiffness to Weight: Axial, points 7.8
7.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 20
13
Strength to Weight: Bending, points 19
14
Thermal Diffusivity, mm2/s 12
40
Thermal Shock Resistance, points 22 to 23
12

Alloy Composition

Copper (Cu), % 63.5 to 66.5
55 to 59
Iron (Fe), % 0 to 0.25
0 to 0.35
Lead (Pb), % 0 to 0.050
2.5 to 3.5
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 11 to 13
0
Zinc (Zn), % 19.2 to 25.5
36.7 to 42.5
Residuals, % 0 to 0.5
0 to 0.5