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EN-MC65120 Magnesium vs. ZA-12

EN-MC65120 magnesium belongs to the magnesium alloys classification, while ZA-12 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-MC65120 magnesium and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 45
83
Elongation at Break, % 3.1
1.6 to 5.3
Fatigue Strength, MPa 80
73 to 120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 17
33
Shear Strength, MPa 92
240 to 300
Tensile Strength: Ultimate (UTS), MPa 160
260 to 400
Tensile Strength: Yield (Proof), MPa 110
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 330
120
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 590
430
Melting Onset (Solidus), °C 520
380
Specific Heat Capacity, J/kg-K 970
450
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
28
Electrical Conductivity: Equal Weight (Specific), % IACS 120
42

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 1.9
6.0
Embodied Carbon, kg CO2/kg material 25
3.4
Embodied Energy, MJ/kg 190
64
Embodied Water, L/kg 930
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 140
260 to 620
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 23
12 to 19
Strength to Weight: Bending, points 34
15 to 20
Thermal Diffusivity, mm2/s 56
43
Thermal Shock Resistance, points 9.8
9.4 to 14

Alloy Composition


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Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 0 to 0.030
0.5 to 1.2
Iron (Fe), % 0 to 0.010
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 91.8 to 95.1
0.015 to 0.030
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 0.060
Tin (Sn), % 0
0 to 0.0030
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
87.1 to 89
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0