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AS41A Magnesium vs. 5059 Aluminum

AS41A magnesium belongs to the magnesium alloys classification, while 5059 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 AS41A magnesium and the bottom bar is 5059 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 11
11 to 25
Fatigue Strength, MPa 100
170 to 240
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 130
220 to 250
Tensile Strength: Ultimate (UTS), MPa 230
350 to 410
Tensile Strength: Yield (Proof), MPa 140
170 to 300

Thermal Properties

Latent Heat of Fusion, J/g 370
390
Maximum Temperature: Mechanical, °C 110
210
Melting Completion (Liquidus), °C 620
650
Melting Onset (Solidus), °C 570
510
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 68
110
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
29
Electrical Conductivity: Equal Weight (Specific), % IACS 92
95

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 23
9.1
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 980
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 220
220 to 650
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 38
36 to 42
Strength to Weight: Bending, points 50
41 to 45
Thermal Diffusivity, mm2/s 41
44
Thermal Shock Resistance, points 14
16 to 18

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
89.9 to 94
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0 to 0.060
0 to 0.25
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 92.8 to 95.8
5.0 to 6.0
Manganese (Mn), % 0.2 to 0.5
0.6 to 1.2
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0.5 to 1.5
0 to 0.45
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.12
0.4 to 0.9
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0
0 to 0.15