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AS41B Magnesium vs. 1435 Aluminum

AS41B magnesium belongs to the magnesium alloys classification, while 1435 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is AS41B magnesium and the bottom bar is 1435 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 6.0
4.1 to 32
Fatigue Strength, MPa 97
27 to 49
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 120
54 to 87
Tensile Strength: Ultimate (UTS), MPa 210
81 to 150
Tensile Strength: Yield (Proof), MPa 140
23 to 130

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 620
650
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
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
5.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 220
3.8 to 110
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 35
8.3 to 15
Strength to Weight: Bending, points 47
15 to 23
Thermal Diffusivity, mm2/s 41
93
Thermal Shock Resistance, points 13
3.6 to 6.7

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
99.35 to 99.7
Copper (Cu), % 0 to 0.020
0 to 0.020
Iron (Fe), % 0 to 0.0035
0.3 to 0.5
Magnesium (Mg), % 92.7 to 95.7
0 to 0.050
Manganese (Mn), % 0.35 to 0.7
0 to 0.050
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.5 to 1.5
0 to 0.15
Titanium (Ti), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.12
0 to 0.1