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C87600 Bronze vs. Z21721 Zinc

C87600 bronze belongs to the copper alloys classification, while Z21721 zinc belongs to the zinc alloys.

For each property being compared, the top bar is C87600 bronze and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
87
Elongation at Break, % 18
40
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 42
35
Tensile Strength: Ultimate (UTS), MPa 470
150
Tensile Strength: Yield (Proof), MPa 230
120

Thermal Properties

Latent Heat of Fusion, J/g 280
110
Maximum Temperature: Mechanical, °C 190
90
Melting Completion (Liquidus), °C 970
410
Melting Onset (Solidus), °C 860
390
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 28
110
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 6.4
37

Otherwise Unclassified Properties

Base Metal Price, % relative 29
11
Density, g/cm3 8.5
6.6
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 43
53
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
57
Resilience: Unit (Modulus of Resilience), kJ/m3 240
88
Stiffness to Weight: Axial, points 7.4
7.3
Stiffness to Weight: Bending, points 19
22
Strength to Weight: Axial, points 16
6.4
Strength to Weight: Bending, points 16
9.6
Thermal Diffusivity, mm2/s 8.1
44
Thermal Shock Resistance, points 17
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Copper (Cu), % 88 to 92.5
0 to 0.0050
Iron (Fe), % 0
0 to 0.010
Lead (Pb), % 0 to 0.5
0 to 1.0
Silicon (Si), % 3.5 to 5.5
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 4.0 to 7.0
98.9 to 100
Residuals, % 0 to 0.5
0