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EQ21A Magnesium vs. EN AC-43100 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition


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