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C87700 Bronze vs. C77600 Nickel Silver

Both C87700 bronze and C77600 nickel silver are copper alloys. They have 52% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C87700 bronze and the bottom bar is C77600 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 3.6
30
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 300
630
Tensile Strength: Yield (Proof), MPa 120
320

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 180
140
Melting Completion (Liquidus), °C 980
830
Melting Onset (Solidus), °C 900
790
Specific Heat Capacity, J/kg-K 400
390
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
27
Electrical Conductivity: Equal Weight (Specific), % IACS 48
31

Otherwise Unclassified Properties

Base Metal Price, % relative 29
27
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 2.7
3.7
Embodied Energy, MJ/kg 45
60
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6
160
Resilience: Unit (Modulus of Resilience), kJ/m3 64
470
Stiffness to Weight: Axial, points 7.4
7.9
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 9.8
22
Strength to Weight: Bending, points 12
21
Thermal Shock Resistance, points 11
20

Alloy Composition

Antimony (Sb), % 0 to 0.1
0
Copper (Cu), % 87.5 to 90.5
42 to 45
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0 to 0.090
0 to 0.25
Manganese (Mn), % 0 to 0.8
0 to 0.25
Nickel (Ni), % 0 to 0.25
12 to 14
Phosphorus (P), % 0 to 0.15
0
Silicon (Si), % 2.5 to 3.5
0
Tin (Sn), % 0 to 2.0
0 to 0.15
Zinc (Zn), % 7.0 to 9.0
39.7 to 46
Residuals, % 0
0 to 0.5