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WE43A Magnesium vs. Z41321 Zinc

WE43A magnesium belongs to the magnesium alloys classification, while Z41321 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is WE43A magnesium and the bottom bar is Z41321 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
87
Elongation at Break, % 5.2 to 5.4
60
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 17
35
Tensile Strength: Ultimate (UTS), MPa 250 to 270
190
Tensile Strength: Yield (Proof), MPa 160 to 170
150

Thermal Properties

Latent Heat of Fusion, J/g 330
110
Maximum Temperature: Mechanical, °C 180
90
Melting Completion (Liquidus), °C 640
410
Melting Onset (Solidus), °C 570
400
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 51
110
Thermal Expansion, µm/m-K 27
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
27
Electrical Conductivity: Equal Weight (Specific), % IACS 55
37

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 1.9
6.6
Embodied Carbon, kg CO2/kg material 28
2.8
Embodied Energy, MJ/kg 250
54
Embodied Water, L/kg 910
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
100
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 310
130
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 61
23
Strength to Weight: Axial, points 36 to 39
7.9
Strength to Weight: Bending, points 46 to 48
11
Thermal Diffusivity, mm2/s 28
44
Thermal Shock Resistance, points 15 to 16
5.9

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.030
0.5 to 1.0
Iron (Fe), % 0 to 0.010
0 to 0.010
Lead (Pb), % 0
0 to 0.010
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.5 to 93.5
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0.080 to 0.18
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
98.8 to 99.42
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0