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Z21721 Zinc vs. Commercially Pure Zinc

Both Z21721 zinc and commercially pure zinc are zinc alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical.

For each property being compared, the top bar is Z21721 zinc and the bottom bar is commercially pure zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
87
Elongation at Break, % 40
38
Poisson's Ratio 0.25
0.25
Shear Modulus, GPa 35
35
Tensile Strength: Ultimate (UTS), MPa 150
97
Tensile Strength: Yield (Proof), MPa 120
79

Thermal Properties

Latent Heat of Fusion, J/g 110
110
Maximum Temperature: Mechanical, °C 90
90
Melting Completion (Liquidus), °C 410
410
Melting Onset (Solidus), °C 390
400
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 26
26

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
34
Resilience: Unit (Modulus of Resilience), kJ/m3 88
36
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 6.4
4.1
Strength to Weight: Bending, points 9.6
7.1
Thermal Diffusivity, mm2/s 44
44
Thermal Shock Resistance, points 4.8
3.0

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0 to 0.010
Cadmium (Cd), % 0 to 0.070
0 to 0.010
Copper (Cu), % 0 to 0.0050
0 to 0.080
Iron (Fe), % 0 to 0.010
0 to 0.020
Lead (Pb), % 0 to 1.0
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.020
0 to 0.020
Zinc (Zn), % 98.9 to 100
99.827 to 100