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C75700 Nickel Silver vs. C87700 Bronze

Both C75700 nickel silver and C87700 bronze are copper alloys. They have 74% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C75700 nickel silver and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 3.2 to 22
3.6
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
42
Tensile Strength: Ultimate (UTS), MPa 590 to 610
300
Tensile Strength: Yield (Proof), MPa 470 to 580
120

Thermal Properties

Latent Heat of Fusion, J/g 200
250
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 1040
980
Melting Onset (Solidus), °C 990
900
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 40
120
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
45
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
48

Otherwise Unclassified Properties

Base Metal Price, % relative 30
29
Density, g/cm3 8.4
8.5
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 56
45
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
64
Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 20
9.8
Strength to Weight: Bending, points 19
12
Thermal Diffusivity, mm2/s 12
34
Thermal Shock Resistance, points 22 to 23
11

Alloy Composition

Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 63.5 to 66.5
87.5 to 90.5
Iron (Fe), % 0 to 0.25
0 to 0.5
Lead (Pb), % 0 to 0.050
0 to 0.090
Manganese (Mn), % 0 to 0.5
0 to 0.8
Nickel (Ni), % 11 to 13
0 to 0.25
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0
2.5 to 3.5
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 19.2 to 25.5
7.0 to 9.0
Residuals, % 0 to 0.5
0 to 0.8