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ISO-WD43150 Magnesium vs. ZA-27

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while ZA-27 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, 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 ISO-WD43150 magnesium and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
78
Elongation at Break, % 2.8
2.0 to 4.5
Fatigue Strength, MPa 100
110 to 170
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 18
31
Shear Strength, MPa 140
230 to 330
Tensile Strength: Ultimate (UTS), MPa 250
400 to 430
Tensile Strength: Yield (Proof), MPa 150
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 350
130
Maximum Temperature: Mechanical, °C 95
120
Melting Completion (Liquidus), °C 610
480
Melting Onset (Solidus), °C 590
380
Specific Heat Capacity, J/kg-K 990
530
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 27
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
30
Electrical Conductivity: Equal Weight (Specific), % IACS 170
53

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
5.0
Embodied Carbon, kg CO2/kg material 24
4.2
Embodied Energy, MJ/kg 160
80
Embodied Water, L/kg 970
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 250
420 to 890
Stiffness to Weight: Axial, points 15
8.6
Stiffness to Weight: Bending, points 71
28
Strength to Weight: Axial, points 41
22 to 24
Strength to Weight: Bending, points 52
24 to 25
Thermal Diffusivity, mm2/s 81
47
Thermal Shock Resistance, points 14
14 to 15

Alloy Composition


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Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 0 to 0.050
2.0 to 2.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 97.5 to 98.8
0.010 to 0.020
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.080
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
69.3 to 73
Residuals, % 0 to 0.3
0