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EN AC-21000 Aluminum vs. EQ21A Magnesium

EN AC-21000 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-21000 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
80
Elastic (Young's, Tensile) Modulus, GPa 71
44
Elongation at Break, % 6.7
2.4
Fatigue Strength, MPa 100
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 340
250
Tensile Strength: Yield (Proof), MPa 240
190

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 670
640
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 880
980
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
25
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
80
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.0
27
Embodied Energy, MJ/kg 150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 390
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
63
Strength to Weight: Axial, points 32
37
Strength to Weight: Bending, points 36
47
Thermal Diffusivity, mm2/s 49
62
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 93.4 to 95.5
0
Copper (Cu), % 4.2 to 5.0
0.050 to 0.1
Iron (Fe), % 0 to 0.35
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.15 to 0.35
93.9 to 96.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
1.3 to 1.7
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
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