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A242.0 Aluminum vs. EN-MC21230 Magnesium

A242.0 aluminum belongs to the aluminum alloys classification, while EN-MC21230 magnesium belongs to the magnesium 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 A242.0 aluminum and the bottom bar is EN-MC21230 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
63
Elastic (Young's, Tensile) Modulus, GPa 73
45
Elongation at Break, % 1.6
10
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 220
220

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 680
600
Melting Onset (Solidus), °C 550
520
Specific Heat Capacity, J/kg-K 870
1000
Thermal Conductivity, W/m-K 140
72
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
12
Electrical Conductivity: Equal Weight (Specific), % IACS 110
63

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
71
Strength to Weight: Axial, points 20
36
Strength to Weight: Bending, points 26
48
Thermal Diffusivity, mm2/s 52
43
Thermal Shock Resistance, points 9.3
13

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
5.5 to 8.5
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
0 to 0.010
Iron (Fe), % 0 to 0.8
0 to 0.0050
Magnesium (Mg), % 1.2 to 1.7
90.5 to 94.4
Manganese (Mn), % 0 to 0.1
0.1 to 0.6
Nickel (Ni), % 1.8 to 2.3
0 to 0.0020
Silicon (Si), % 0 to 0.6
0 to 0.1
Titanium (Ti), % 0.070 to 0.2
0
Zinc (Zn), % 0 to 0.1
0 to 0.3
Residuals, % 0
0 to 0.010