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Zamak 2 vs. Z41321 Zinc

Both Zamak 2 and Z41321 zinc are zinc alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 94% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is Zamak 2 and the bottom bar is Z41321 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
87
Elongation at Break, % 6.0
60
Poisson's Ratio 0.26
0.25
Shear Modulus, GPa 33
35
Tensile Strength: Ultimate (UTS), MPa 360
190
Tensile Strength: Yield (Proof), MPa 270
150

Thermal Properties

Latent Heat of Fusion, J/g 130
110
Maximum Temperature: Mechanical, °C 95
90
Melting Completion (Liquidus), °C 390
410
Melting Onset (Solidus), °C 380
400
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 28
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 35
37

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 6.5
6.6
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 57
54
Embodied Water, L/kg 380
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
100
Resilience: Unit (Modulus of Resilience), kJ/m3 420
130
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 15
7.9
Strength to Weight: Bending, points 17
11
Thermal Diffusivity, mm2/s 41
44
Thermal Shock Resistance, points 11
5.9

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.010
Cadmium (Cd), % 0 to 0.0050
0 to 0.0050
Copper (Cu), % 2.5 to 3.3
0.5 to 1.0
Iron (Fe), % 0 to 0.1
0 to 0.010
Lead (Pb), % 0 to 0.0050
0 to 0.010
Magnesium (Mg), % 0.020 to 0.060
0
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0
Tin (Sn), % 0 to 0.0030
0 to 0.0030
Titanium (Ti), % 0
0.080 to 0.18
Zinc (Zn), % 92.2 to 94
98.8 to 99.42