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EN-MC21210 Magnesium vs. Zamak 3

EN-MC21210 magnesium belongs to the magnesium alloys classification, while Zamak 3 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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-MC21210 magnesium and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
83
Elastic (Young's, Tensile) Modulus, GPa 44
86
Elongation at Break, % 14
11
Fatigue Strength, MPa 70
48
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 17
33
Shear Strength, MPa 110
210
Tensile Strength: Ultimate (UTS), MPa 190
280
Tensile Strength: Yield (Proof), MPa 90
210

Thermal Properties

Latent Heat of Fusion, J/g 350
120
Maximum Temperature: Mechanical, °C 100
95
Melting Completion (Liquidus), °C 600
390
Melting Onset (Solidus), °C 570
380
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 27
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
27
Electrical Conductivity: Equal Weight (Specific), % IACS 130
38

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.6
6.4
Embodied Carbon, kg CO2/kg material 24
3.0
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 980
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
28
Resilience: Unit (Modulus of Resilience), kJ/m3 92
260
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 72
23
Strength to Weight: Axial, points 32
12
Strength to Weight: Bending, points 44
15
Thermal Diffusivity, mm2/s 76
43
Thermal Shock Resistance, points 11
8.6

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 96.3 to 98.3
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 to 0.1
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0 to 0.2
95.3 to 96.5
Residuals, % 0 to 0.010
0