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8011A Aluminum vs. AS41B Magnesium

8011A 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 (2, in this case) are not shown.

For each property being compared, the top bar is 8011A aluminum and the bottom bar is AS41B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 1.7 to 28
6.0
Fatigue Strength, MPa 33 to 76
97
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 100 to 180
210
Tensile Strength: Yield (Proof), MPa 34 to 170
140

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 630
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 210
68
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
17
Electrical Conductivity: Equal Weight (Specific), % IACS 180
92

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.2
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 22
11
Resilience: Unit (Modulus of Resilience), kJ/m3 8.2 to 200
220
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 11 to 18
35
Strength to Weight: Bending, points 18 to 26
47
Thermal Diffusivity, mm2/s 86
41
Thermal Shock Resistance, points 4.6 to 8.1
13

Alloy Composition

Aluminum (Al), % 97.5 to 99.1
3.5 to 5.0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.020
Iron (Fe), % 0.5 to 1.0
0 to 0.0035
Magnesium (Mg), % 0 to 0.1
92.7 to 95.7
Manganese (Mn), % 0 to 0.1
0.35 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0.4 to 0.8
0.5 to 1.5
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0 to 0.12
Residuals, % 0 to 0.15
0