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Z21721 Zinc vs. C86200 Bronze

Z21721 zinc belongs to the zinc alloys classification, while C86200 bronze belongs to the copper alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much.

For each property being compared, the top bar is Z21721 zinc and the bottom bar is C86200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
110
Elongation at Break, % 40
21
Poisson's Ratio 0.25
0.32
Shear Modulus, GPa 35
42
Tensile Strength: Ultimate (UTS), MPa 150
710
Tensile Strength: Yield (Proof), MPa 120
350

Thermal Properties

Latent Heat of Fusion, J/g 110
190
Maximum Temperature: Mechanical, °C 90
160
Melting Completion (Liquidus), °C 410
940
Melting Onset (Solidus), °C 390
900
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 110
35
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 6.6
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 53
49
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
120
Resilience: Unit (Modulus of Resilience), kJ/m3 88
540
Stiffness to Weight: Axial, points 7.3
7.8
Stiffness to Weight: Bending, points 22
20
Strength to Weight: Axial, points 6.4
25
Strength to Weight: Bending, points 9.6
22
Thermal Diffusivity, mm2/s 44
11
Thermal Shock Resistance, points 4.8
23

Alloy Composition

Aluminum (Al), % 0 to 0.0020
3.0 to 4.9
Cadmium (Cd), % 0 to 0.070
0
Copper (Cu), % 0 to 0.0050
60 to 66
Iron (Fe), % 0 to 0.010
2.0 to 4.0
Lead (Pb), % 0 to 1.0
0 to 0.2
Manganese (Mn), % 0
2.5 to 5.0
Nickel (Ni), % 0
0 to 1.0
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 98.9 to 100
22 to 28
Residuals, % 0
0 to 1.0