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AM50A Magnesium vs. A242.0 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while A242.0 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AM50A magnesium and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
75
Elastic (Young's, Tensile) Modulus, GPa 45
73
Elongation at Break, % 11
1.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 210
220

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 620
680
Melting Onset (Solidus), °C 570
550
Specific Heat Capacity, J/kg-K 1000
870
Thermal Conductivity, W/m-K 65
140
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
37
Electrical Conductivity: Equal Weight (Specific), % IACS 88
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 1.7
3.1
Embodied Carbon, kg CO2/kg material 23
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1130

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
45
Strength to Weight: Axial, points 35
20
Strength to Weight: Bending, points 47
26
Thermal Diffusivity, mm2/s 39
52
Thermal Shock Resistance, points 13
9.3

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
89.3 to 93.1
Chromium (Cr), % 0
0.15 to 0.25
Copper (Cu), % 0 to 0.010
3.7 to 4.5
Iron (Fe), % 0 to 0.0040
0 to 0.8
Magnesium (Mg), % 93.7 to 95.3
1.2 to 1.7
Manganese (Mn), % 0.26 to 0.6
0 to 0.1
Nickel (Ni), % 0 to 0.0020
1.8 to 2.3
Silicon (Si), % 0 to 0.1
0 to 0.6
Titanium (Ti), % 0
0.070 to 0.2
Zinc (Zn), % 0 to 0.22
0 to 0.1
Residuals, % 0
0 to 0.15