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EQ21A Magnesium vs. 359.0 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 359.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EQ21A magnesium and the bottom bar is 359.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
90 to 100
Elastic (Young's, Tensile) Modulus, GPa 44
71
Elongation at Break, % 2.4
3.8 to 4.9
Fatigue Strength, MPa 110
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 150
220 to 230
Tensile Strength: Ultimate (UTS), MPa 250
340 to 350
Tensile Strength: Yield (Proof), MPa 190
250 to 280

Thermal Properties

Latent Heat of Fusion, J/g 340
530
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 560
570
Specific Heat Capacity, J/kg-K 980
910
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
35
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 80
9.5
Density, g/cm3 1.9
2.6
Embodied Carbon, kg CO2/kg material 27
8.0
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
12 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 410
450 to 540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 63
54
Strength to Weight: Axial, points 37
37 to 38
Strength to Weight: Bending, points 47
42 to 43
Thermal Diffusivity, mm2/s 62
59
Thermal Shock Resistance, points 15
16 to 17

Alloy Composition


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Aluminum (Al), % 0
88.9 to 91
Copper (Cu), % 0.050 to 0.1
0 to 0.2
Iron (Fe), % 0
0 to 0.2
Magnesium (Mg), % 93.9 to 96.8
0.5 to 0.7
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
8.5 to 9.5
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.2
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