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Z21721 Zinc vs. C95800 Bronze

Z21721 zinc belongs to the zinc alloys classification, while C95800 bronze belongs to the copper alloys.

For each property being compared, the top bar is Z21721 zinc and the bottom bar is C95800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
120
Elongation at Break, % 40
22
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 35
44
Tensile Strength: Ultimate (UTS), MPa 150
660
Tensile Strength: Yield (Proof), MPa 120
270

Thermal Properties

Latent Heat of Fusion, J/g 110
230
Maximum Temperature: Mechanical, °C 90
230
Melting Completion (Liquidus), °C 410
1060
Melting Onset (Solidus), °C 390
1040
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 110
36
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
7.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
29
Density, g/cm3 6.6
8.3
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 53
55
Embodied Water, L/kg 340
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
110
Resilience: Unit (Modulus of Resilience), kJ/m3 88
310
Stiffness to Weight: Axial, points 7.3
7.9
Stiffness to Weight: Bending, points 22
20
Strength to Weight: Axial, points 6.4
22
Strength to Weight: Bending, points 9.6
20
Thermal Diffusivity, mm2/s 44
9.9
Thermal Shock Resistance, points 4.8
23

Alloy Composition

Aluminum (Al), % 0 to 0.0020
8.5 to 9.5
Cadmium (Cd), % 0 to 0.070
0
Copper (Cu), % 0 to 0.0050
79 to 83.2
Iron (Fe), % 0 to 0.010
3.5 to 4.5
Lead (Pb), % 0 to 1.0
0 to 0.030
Manganese (Mn), % 0
0.8 to 1.5
Nickel (Ni), % 0
4.0 to 5.0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 98.9 to 100
0
Residuals, % 0
0 to 0.5