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EN AC-43100 Aluminum vs. EQ21A Magnesium

EN AC-43100 aluminum belongs to the aluminum alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 29 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 EN AC-43100 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 94
80
Elastic (Young's, Tensile) Modulus, GPa 71
44
Elongation at Break, % 1.1 to 2.5
2.4
Fatigue Strength, MPa 68 to 76
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 180 to 270
250
Tensile Strength: Yield (Proof), MPa 97 to 230
190

Thermal Properties

Latent Heat of Fusion, J/g 540
340
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 590
560
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
25
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
80
Density, g/cm3 2.6
1.9
Embodied Carbon, kg CO2/kg material 7.8
27
Embodied Energy, MJ/kg 150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9 to 5.7
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 66 to 360
410
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
63
Strength to Weight: Axial, points 20 to 29
37
Strength to Weight: Bending, points 28 to 36
47
Thermal Diffusivity, mm2/s 60
62
Thermal Shock Resistance, points 8.6 to 12
15

Alloy Composition

Aluminum (Al), % 86.9 to 90.8
0
Copper (Cu), % 0 to 0.1
0.050 to 0.1
Iron (Fe), % 0 to 0.55
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.2 to 0.45
93.9 to 96.8
Manganese (Mn), % 0 to 0.45
0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 9.0 to 11
0
Silver (Ag), % 0
1.3 to 1.7
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3