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EN-MC21310 Magnesium vs. Zamak 2

EN-MC21310 magnesium belongs to the magnesium alloys classification, while Zamak 2 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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-MC21310 magnesium and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
100
Elastic (Young's, Tensile) Modulus, GPa 45
87
Elongation at Break, % 9.0
6.0
Fatigue Strength, MPa 86
59
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 17
33
Shear Strength, MPa 120
320
Tensile Strength: Ultimate (UTS), MPa 200
360
Tensile Strength: Yield (Proof), MPa 120
270

Thermal Properties

Latent Heat of Fusion, J/g 360
130
Maximum Temperature: Mechanical, °C 100
95
Melting Completion (Liquidus), °C 600
390
Melting Onset (Solidus), °C 560
380
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 26
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
25
Electrical Conductivity: Equal Weight (Specific), % IACS 120
35

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 1.6
6.5
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 970
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
20
Resilience: Unit (Modulus of Resilience), kJ/m3 160
420
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 73
23
Strength to Weight: Axial, points 34
15
Strength to Weight: Bending, points 47
17
Thermal Diffusivity, mm2/s 55
41
Thermal Shock Resistance, points 12
11

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.010
2.5 to 3.3
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 95.2 to 97.4
0.020 to 0.060
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 0.020
Silicon (Si), % 0.7 to 1.2
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0 to 0.2
92.2 to 94
Residuals, % 0 to 0.010
0