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QE22A Magnesium vs. Commercially Pure Zinc

QE22A magnesium belongs to the magnesium alloys classification, while commercially pure zinc belongs to the zinc alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 QE22A magnesium and the bottom bar is commercially pure zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
87
Elongation at Break, % 2.4
38
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 17
35
Tensile Strength: Ultimate (UTS), MPa 250
97
Tensile Strength: Yield (Proof), MPa 190
79

Thermal Properties

Latent Heat of Fusion, J/g 340
110
Maximum Temperature: Mechanical, °C 250
90
Melting Completion (Liquidus), °C 640
410
Melting Onset (Solidus), °C 570
400
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 27
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 120
37

Otherwise Unclassified Properties

Density, g/cm3 2.0
6.6
Embodied Carbon, kg CO2/kg material 27
2.8
Embodied Energy, MJ/kg 220
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
34
Resilience: Unit (Modulus of Resilience), kJ/m3 400
36
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 60
23
Strength to Weight: Axial, points 36
4.1
Strength to Weight: Bending, points 46
7.1
Thermal Diffusivity, mm2/s 59
44
Thermal Shock Resistance, points 15
3.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 0 to 0.1
0 to 0.080
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 93.1 to 95.8
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 2.0 to 3.0
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0 to 0.020
Unspecified Rare Earths, % 1.8 to 2.5
0
Zinc (Zn), % 0
99.827 to 100
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0