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AS41B Magnesium vs. 1070A Aluminum

AS41B magnesium belongs to the magnesium alloys classification, while 1070A 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 AS41B magnesium and the bottom bar is 1070A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
68
Elongation at Break, % 6.0
2.3 to 33
Fatigue Strength, MPa 97
17 to 51
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 120
44 to 81
Tensile Strength: Ultimate (UTS), MPa 210
68 to 140
Tensile Strength: Yield (Proof), MPa 140
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
640
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 68
230
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
60
Electrical Conductivity: Equal Weight (Specific), % IACS 92
200

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 23
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
3.0 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2.1 to 100
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 35
7.0 to 14
Strength to Weight: Bending, points 47
14 to 22
Thermal Diffusivity, mm2/s 41
94
Thermal Shock Resistance, points 13
3.1 to 6.3

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
99.7 to 100
Copper (Cu), % 0 to 0.020
0 to 0.030
Iron (Fe), % 0 to 0.0035
0 to 0.25
Magnesium (Mg), % 92.7 to 95.7
0 to 0.030
Manganese (Mn), % 0.35 to 0.7
0 to 0.030
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.5 to 1.5
0 to 0.2
Titanium (Ti), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.12
0 to 0.070