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EN-MC65120 Magnesium vs. Zamak 2

EN-MC65120 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-MC65120 magnesium and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
100
Elastic (Young's, Tensile) Modulus, GPa 45
87
Elongation at Break, % 3.1
6.0
Fatigue Strength, MPa 80
59
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 17
33
Shear Strength, MPa 92
320
Tensile Strength: Ultimate (UTS), MPa 160
360
Tensile Strength: Yield (Proof), MPa 110
270

Thermal Properties

Latent Heat of Fusion, J/g 330
130
Maximum Temperature: Mechanical, °C 180
95
Melting Completion (Liquidus), °C 590
390
Melting Onset (Solidus), °C 520
380
Specific Heat Capacity, J/kg-K 970
410
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 26
28

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 1.9
6.5
Embodied Carbon, kg CO2/kg material 25
3.0
Embodied Energy, MJ/kg 190
57
Embodied Water, L/kg 930
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
20
Resilience: Unit (Modulus of Resilience), kJ/m3 140
420
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 62
23
Strength to Weight: Axial, points 23
15
Strength to Weight: Bending, points 34
17
Thermal Diffusivity, mm2/s 56
41
Thermal Shock Resistance, points 9.8
11

Alloy Composition


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Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.030
2.5 to 3.3
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 91.8 to 95.1
0.020 to 0.060
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 0.020
Silicon (Si), % 0 to 0.010
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
92.2 to 94
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0