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C87700 Bronze vs. Commercially Pure Silver

C87700 bronze belongs to the copper alloys classification, while commercially pure silver belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 3.6
1.1 to 29
Poisson's Ratio 0.33
0.37
Shear Modulus, GPa 42
26
Tensile Strength: Ultimate (UTS), MPa 300
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Melting Completion (Liquidus), °C 980
960
Melting Onset (Solidus), °C 900
960
Specific Heat Capacity, J/kg-K 400
240
Thermal Conductivity, W/m-K 120
420
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
100
Electrical Conductivity: Equal Weight (Specific), % IACS 48
87

Otherwise Unclassified Properties

Density, g/cm3 8.5
10

Common Calculations

Stiffness to Weight: Axial, points 7.4
3.8
Stiffness to Weight: Bending, points 19
13
Strength to Weight: Axial, points 9.8
4.9 to 8.9
Strength to Weight: Bending, points 12
6.9 to 10
Thermal Diffusivity, mm2/s 34
170
Thermal Shock Resistance, points 11
9.5 to 17

Alloy Composition

Antimony (Sb), % 0 to 0.1
0
Copper (Cu), % 87.5 to 90.5
0
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.8
0
Nickel (Ni), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.15
0
Silicon (Si), % 2.5 to 3.5
0
Silver (Ag), % 0
99.9 to 100
Tin (Sn), % 0 to 2.0
0
Zinc (Zn), % 7.0 to 9.0
0
Residuals, % 0
0 to 0.1