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EN-MC21230 Magnesium vs. Commercially Pure Zinc

EN-MC21230 magnesium belongs to the magnesium alloys classification, while commercially pure 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 EN-MC21230 magnesium and the bottom bar is commercially pure zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
87
Elongation at Break, % 10
38
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 18
35
Tensile Strength: Ultimate (UTS), MPa 220
97
Tensile Strength: Yield (Proof), MPa 140
79

Thermal Properties

Latent Heat of Fusion, J/g 350
110
Maximum Temperature: Mechanical, °C 120
90
Melting Completion (Liquidus), °C 600
410
Melting Onset (Solidus), °C 520
400
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 72
110
Thermal Expansion, µm/m-K 27
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
27
Electrical Conductivity: Equal Weight (Specific), % IACS 63
37

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
6.6
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
53
Embodied Water, L/kg 990
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
34
Resilience: Unit (Modulus of Resilience), kJ/m3 200
36
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 71
23
Strength to Weight: Axial, points 36
4.1
Strength to Weight: Bending, points 48
7.1
Thermal Diffusivity, mm2/s 43
44
Thermal Shock Resistance, points 13
3.0

Alloy Composition


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Aluminum (Al), % 5.5 to 8.5
0 to 0.010
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 0 to 0.010
0 to 0.080
Iron (Fe), % 0 to 0.0050
0 to 0.020
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.3
99.827 to 100
Residuals, % 0 to 0.010
0