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EN-MC65220 Magnesium vs. ZA-27

EN-MC65220 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 EN-MC65220 magnesium and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
100 to 120
Elastic (Young's, Tensile) Modulus, GPa 44
78
Elongation at Break, % 2.2
2.0 to 4.5
Fatigue Strength, MPa 110
110 to 170
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
31
Shear Strength, MPa 150
230 to 330
Tensile Strength: Ultimate (UTS), MPa 270
400 to 430
Tensile Strength: Yield (Proof), MPa 200
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 340
130
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 610
480
Melting Onset (Solidus), °C 550
380
Specific Heat Capacity, J/kg-K 980
530
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
30
Electrical Conductivity: Equal Weight (Specific), % IACS 120
53

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 1.9
5.0
Embodied Carbon, kg CO2/kg material 27
4.2
Embodied Energy, MJ/kg 210
80

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 450
420 to 890
Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 62
28
Strength to Weight: Axial, points 40
22 to 24
Strength to Weight: Bending, points 49
24 to 25
Thermal Diffusivity, mm2/s 61
47
Thermal Shock Resistance, points 17
14 to 15

Alloy Composition


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Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 0.050 to 0.1
2.0 to 2.5
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 93.8 to 96.8
0.010 to 0.020
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 0.080
Silver (Ag), % 1.3 to 1.7
0
Tin (Sn), % 0
0 to 0.0030
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
69.3 to 73
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0