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C74400 Nickel Silver vs. C31400 Bronze

Both C74400 nickel silver and C31400 bronze are copper alloys. They have 73% of their average alloy composition in common.

For each property being compared, the top bar is C74400 nickel silver and the bottom bar is C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 43
6.8 to 29
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
42
Shear Strength, MPa 240
180 to 240
Tensile Strength: Ultimate (UTS), MPa 350
270 to 420
Tensile Strength: Yield (Proof), MPa 120
78 to 310

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 140
180
Melting Completion (Liquidus), °C 930
1040
Melting Onset (Solidus), °C 910
1010
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
180
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
42
Electrical Conductivity: Equal Weight (Specific), % IACS 29
43

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 48
42
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
26 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 63
28 to 420
Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12
8.7 to 13
Strength to Weight: Bending, points 14
11 to 14
Thermal Diffusivity, mm2/s 37
54
Thermal Shock Resistance, points 12
9.6 to 15

Alloy Composition


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Copper (Cu), % 62 to 66
87.5 to 90.5
Iron (Fe), % 0 to 0.050
0 to 0.1
Lead (Pb), % 0 to 0.050
1.3 to 2.5
Nickel (Ni), % 2.0 to 4.0
0 to 0.7
Zinc (Zn), % 29.6 to 36
5.8 to 11.2
Residuals, % 0 to 0.3
0 to 0.4