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AS41A Magnesium vs. 4015 Aluminum

AS41A magnesium belongs to the magnesium alloys classification, while 4015 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 4015 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 11
1.1 to 23
Fatigue Strength, MPa 100
46 to 71
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 130
82 to 120
Tensile Strength: Ultimate (UTS), MPa 230
130 to 220
Tensile Strength: Yield (Proof), MPa 140
50 to 200

Thermal Properties

Latent Heat of Fusion, J/g 370
420
Maximum Temperature: Mechanical, °C 110
160
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
600
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 68
160
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
41
Electrical Conductivity: Equal Weight (Specific), % IACS 92
130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 23
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
2.4 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 220
18 to 290
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 38
13 to 22
Strength to Weight: Bending, points 50
21 to 30
Thermal Diffusivity, mm2/s 41
66
Thermal Shock Resistance, points 14
5.7 to 9.7

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
94.9 to 97.9
Copper (Cu), % 0 to 0.060
0 to 0.2
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 92.8 to 95.8
0.1 to 0.5
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
1.4 to 2.2
Zinc (Zn), % 0 to 0.12
0 to 0.2
Residuals, % 0
0 to 0.15