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2030 Aluminum vs. ZK51A Magnesium

2030 aluminum belongs to the aluminum alloys classification, while ZK51A magnesium belongs to the magnesium 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 2030 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 5.6 to 8.0
4.7
Fatigue Strength, MPa 91 to 110
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 220 to 250
160
Tensile Strength: Ultimate (UTS), MPa 370 to 420
240
Tensile Strength: Yield (Proof), MPa 240 to 270
150

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 510
550
Specific Heat Capacity, J/kg-K 870
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
28
Electrical Conductivity: Equal Weight (Specific), % IACS 99
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 3.1
1.8
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
10
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
64
Strength to Weight: Axial, points 33 to 38
36
Strength to Weight: Bending, points 37 to 40
47
Thermal Diffusivity, mm2/s 50
61
Thermal Shock Resistance, points 16 to 19
15

Alloy Composition

Aluminum (Al), % 88.9 to 95.2
0
Bismuth (Bi), % 0 to 0.2
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.3 to 4.5
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.5 to 1.3
93.1 to 95.9
Manganese (Mn), % 0.2 to 1.0
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.8
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3