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C94300 Bronze vs. Z21721 Zinc

C94300 bronze belongs to the copper alloys classification, while Z21721 zinc belongs to the zinc alloys.

For each property being compared, the top bar is C94300 bronze and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
87
Elongation at Break, % 9.7
40
Poisson's Ratio 0.36
0.25
Shear Modulus, GPa 32
35
Tensile Strength: Ultimate (UTS), MPa 180
150
Tensile Strength: Yield (Proof), MPa 120
120

Thermal Properties

Latent Heat of Fusion, J/g 150
110
Maximum Temperature: Mechanical, °C 110
90
Melting Completion (Liquidus), °C 820
410
Melting Onset (Solidus), °C 760
390
Specific Heat Capacity, J/kg-K 320
390
Thermal Conductivity, W/m-K 63
110
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
37

Otherwise Unclassified Properties

Base Metal Price, % relative 28
11
Density, g/cm3 9.3
6.6
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 47
53
Embodied Water, L/kg 370
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
57
Resilience: Unit (Modulus of Resilience), kJ/m3 77
88
Stiffness to Weight: Axial, points 5.2
7.3
Stiffness to Weight: Bending, points 16
22
Strength to Weight: Axial, points 5.2
6.4
Strength to Weight: Bending, points 7.4
9.6
Thermal Diffusivity, mm2/s 21
44
Thermal Shock Resistance, points 7.1
4.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0020
Antimony (Sb), % 0 to 0.8
0
Cadmium (Cd), % 0
0 to 0.070
Copper (Cu), % 67 to 72
0 to 0.0050
Iron (Fe), % 0 to 0.15
0 to 0.010
Lead (Pb), % 23 to 27
0 to 1.0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.5 to 6.0
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.8
98.9 to 100
Residuals, % 0 to 1.0
0