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C87600 Bronze vs. C77400 Nickel Silver

Both C87600 bronze and C77400 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 51% 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 C87600 bronze and the bottom bar is C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
25
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 470
570
Tensile Strength: Yield (Proof), MPa 230
250

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 970
810
Melting Onset (Solidus), °C 860
770
Specific Heat Capacity, J/kg-K 410
390
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 6.4
31

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 43
57
Embodied Water, L/kg 300
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
290
Stiffness to Weight: Axial, points 7.4
7.7
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16
20
Strength to Weight: Bending, points 16
19
Thermal Shock Resistance, points 17
18

Alloy Composition

Copper (Cu), % 88 to 92.5
43 to 47
Lead (Pb), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 0
9.0 to 11
Silicon (Si), % 3.5 to 5.5
0
Zinc (Zn), % 4.0 to 7.0
41.3 to 48
Residuals, % 0
0 to 0.5