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EQ21A Magnesium vs. EN AC-46500 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while EN AC-46500 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-46500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
91
Elastic (Young's, Tensile) Modulus, GPa 44
74
Elongation at Break, % 2.4
1.0
Fatigue Strength, MPa 110
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
28
Tensile Strength: Ultimate (UTS), MPa 250
270
Tensile Strength: Yield (Proof), MPa 190
160

Thermal Properties

Latent Heat of Fusion, J/g 340
520
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 560
520
Specific Heat Capacity, J/kg-K 980
880
Thermal Conductivity, W/m-K 110
100
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
26
Electrical Conductivity: Equal Weight (Specific), % IACS 120
81

Otherwise Unclassified Properties

Base Metal Price, % relative 80
10
Density, g/cm3 1.9
2.9
Embodied Carbon, kg CO2/kg material 27
7.6
Embodied Energy, MJ/kg 210
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 410
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
49
Strength to Weight: Axial, points 37
26
Strength to Weight: Bending, points 47
32
Thermal Diffusivity, mm2/s 62
41
Thermal Shock Resistance, points 15
12

Alloy Composition


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Aluminum (Al), % 0
77.9 to 90
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0.050 to 0.1
2.0 to 4.0
Iron (Fe), % 0
0 to 1.3
Lead (Pb), % 0
0 to 0.35
Magnesium (Mg), % 93.9 to 96.8
0.050 to 0.55
Manganese (Mn), % 0
0 to 0.55
Nickel (Ni), % 0 to 0.010
0 to 0.55
Silicon (Si), % 0
8.0 to 11
Silver (Ag), % 1.3 to 1.7
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 3.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.25