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EN AC-48100 Aluminum vs. EQ21A Magnesium

EN AC-48100 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-48100 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 140
80
Elastic (Young's, Tensile) Modulus, GPa 76
44
Elongation at Break, % 1.1
2.4
Fatigue Strength, MPa 120 to 130
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 29
17
Tensile Strength: Ultimate (UTS), MPa 240 to 330
250
Tensile Strength: Yield (Proof), MPa 190 to 300
190

Thermal Properties

Latent Heat of Fusion, J/g 640
340
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 580
640
Melting Onset (Solidus), °C 470
560
Specific Heat Capacity, J/kg-K 880
980
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
25
Electrical Conductivity: Equal Weight (Specific), % IACS 87
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
80
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 7.3
27
Embodied Energy, MJ/kg 130
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3 to 3.6
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 580
410
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
63
Strength to Weight: Axial, points 24 to 33
37
Strength to Weight: Bending, points 31 to 38
47
Thermal Diffusivity, mm2/s 55
62
Thermal Shock Resistance, points 11 to 16
15

Alloy Composition

Aluminum (Al), % 72.1 to 79.8
0
Copper (Cu), % 4.0 to 5.0
0.050 to 0.1
Iron (Fe), % 0 to 1.3
0
Magnesium (Mg), % 0.25 to 0.65
93.9 to 96.8
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Silicon (Si), % 16 to 18
0
Silver (Ag), % 0
1.3 to 1.7
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 1.5
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3