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240.0 Aluminum vs. AS41B Magnesium

240.0 aluminum belongs to the aluminum alloys classification, while AS41B magnesium belongs to the magnesium alloys. There are 29 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 240.0 aluminum and the bottom bar is AS41B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
45
Elongation at Break, % 1.0
6.0
Fatigue Strength, MPa 140
97
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 240
210
Tensile Strength: Yield (Proof), MPa 200
140

Thermal Properties

Latent Heat of Fusion, J/g 380
370
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 600
620
Melting Onset (Solidus), °C 520
570
Specific Heat Capacity, J/kg-K 860
1000
Thermal Conductivity, W/m-K 96
68
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
17
Electrical Conductivity: Equal Weight (Specific), % IACS 65
92

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 3.2
1.7
Embodied Carbon, kg CO2/kg material 8.7
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1100
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
11
Resilience: Unit (Modulus of Resilience), kJ/m3 280
220
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 43
72
Strength to Weight: Axial, points 20
35
Strength to Weight: Bending, points 26
47
Thermal Diffusivity, mm2/s 35
41
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 81.7 to 86.9
3.5 to 5.0
Copper (Cu), % 7.0 to 9.0
0 to 0.020
Iron (Fe), % 0 to 0.5
0 to 0.0035
Magnesium (Mg), % 5.5 to 6.5
92.7 to 95.7
Manganese (Mn), % 0.3 to 0.7
0.35 to 0.7
Nickel (Ni), % 0.3 to 0.7
0 to 0.0020
Silicon (Si), % 0 to 0.5
0.5 to 1.5
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0 to 0.12
Residuals, % 0 to 0.15
0