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EN-MC21220 Magnesium vs. Z41121 Zinc

EN-MC21220 magnesium belongs to the magnesium alloys classification, while Z41121 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-MC21220 magnesium and the bottom bar is Z41121 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
87
Elongation at Break, % 11
50
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 17
35
Tensile Strength: Ultimate (UTS), MPa 210
140
Tensile Strength: Yield (Proof), MPa 120
120

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 540
400
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 65
110
Thermal Expansion, µm/m-K 27
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
27
Electrical Conductivity: Equal Weight (Specific), % IACS 87
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
54
Embodied Water, L/kg 990
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
68
Resilience: Unit (Modulus of Resilience), kJ/m3 160
79
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 71
23
Strength to Weight: Axial, points 34
6.1
Strength to Weight: Bending, points 46
9.3
Thermal Diffusivity, mm2/s 39
44
Thermal Shock Resistance, points 12
4.6

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.010
0.080 to 0.49
Iron (Fe), % 0 to 0.0050
0 to 0.010
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 93.5 to 95.5
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
0.050 to 0.18
Zinc (Zn), % 0 to 0.3
99.292 to 99.87
Residuals, % 0 to 0.010
0