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C75700 Nickel Silver vs. C64800 Bronze

Both C75700 nickel silver and C64800 bronze are copper alloys. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is C75700 nickel silver and the bottom bar is C64800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 3.2 to 22
8.0
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 45
44
Shear Strength, MPa 350 to 370
380
Tensile Strength: Ultimate (UTS), MPa 590 to 610
640
Tensile Strength: Yield (Proof), MPa 470 to 580
630

Thermal Properties

Latent Heat of Fusion, J/g 200
220
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 1040
1090
Melting Onset (Solidus), °C 990
1030
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 40
260
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
65
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
66

Otherwise Unclassified Properties

Base Metal Price, % relative 30
33
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 56
43
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
51
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
1680
Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 19 to 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 12
75
Thermal Shock Resistance, points 22 to 23
23

Alloy Composition


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Chromium (Cr), % 0
0 to 0.090
Cobalt (Co), % 0
1.0 to 3.0
Copper (Cu), % 63.5 to 66.5
92.4 to 98.8
Iron (Fe), % 0 to 0.25
0 to 1.0
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 11 to 13
0 to 0.5
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0
0.2 to 1.0
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 19.2 to 25.5
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.5