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6463 Aluminum vs. AS41B Magnesium

6463 aluminum belongs to the aluminum alloys classification, while AS41B 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 6463 aluminum and the bottom bar is AS41B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 9.0 to 17
6.0
Fatigue Strength, MPa 45 to 76
97
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 86 to 150
120
Tensile Strength: Ultimate (UTS), MPa 140 to 230
210
Tensile Strength: Yield (Proof), MPa 82 to 200
140

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 660
620
Melting Onset (Solidus), °C 620
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 190 to 210
68
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
17
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
92

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
11
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
220
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 14 to 24
35
Strength to Weight: Bending, points 22 to 31
47
Thermal Diffusivity, mm2/s 79 to 86
41
Thermal Shock Resistance, points 6.3 to 10
13

Alloy Composition


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Aluminum (Al), % 97.9 to 99.4
3.5 to 5.0
Copper (Cu), % 0 to 0.2
0 to 0.020
Iron (Fe), % 0 to 0.15
0 to 0.0035
Magnesium (Mg), % 0.45 to 0.9
92.7 to 95.7
Manganese (Mn), % 0 to 0.050
0.35 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0.2 to 0.6
0.5 to 1.5
Zinc (Zn), % 0 to 0.050
0 to 0.12
Residuals, % 0 to 0.15
0