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ZK40A Magnesium vs. 2095 Aluminum

ZK40A magnesium belongs to the magnesium alloys classification, while 2095 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ZK40A magnesium and the bottom bar is 2095 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 4.2
8.5
Fatigue Strength, MPa 190
200
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 160
410
Tensile Strength: Ultimate (UTS), MPa 280
700
Tensile Strength: Yield (Proof), MPa 260
610

Thermal Properties

Latent Heat of Fusion, J/g 340
390
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 600
660
Melting Onset (Solidus), °C 540
540
Specific Heat Capacity, J/kg-K 970
910
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
35
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 1.8
3.0
Embodied Carbon, kg CO2/kg material 24
8.6
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 950
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
57
Resilience: Unit (Modulus of Resilience), kJ/m3 740
2640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 65
46
Strength to Weight: Axial, points 43
65
Strength to Weight: Bending, points 53
59
Thermal Diffusivity, mm2/s 62
49
Thermal Shock Resistance, points 17
31

Alloy Composition


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Aluminum (Al), % 0
91.3 to 94.9
Copper (Cu), % 0
3.9 to 4.6
Iron (Fe), % 0
0 to 0.15
Lithium (Li), % 0
0.7 to 1.5
Magnesium (Mg), % 94.2 to 96.1
0.25 to 0.8
Manganese (Mn), % 0
0 to 0.25
Silicon (Si), % 0
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 3.5 to 4.5
0 to 0.25
Zirconium (Zr), % 0.45 to 1.0
0.040 to 0.18
Residuals, % 0 to 0.3
0 to 0.15