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EQ21A Magnesium vs. 296.0 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 296.0 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 296.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
75 to 90
Elastic (Young's, Tensile) Modulus, GPa 44
72
Elongation at Break, % 2.4
3.2 to 7.1
Fatigue Strength, MPa 110
47 to 70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 250
260 to 270
Tensile Strength: Yield (Proof), MPa 190
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 340
420
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 560
540
Specific Heat Capacity, J/kg-K 980
870
Thermal Conductivity, W/m-K 110
130 to 150
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
33 to 37
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 1.9
3.0
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
7.6 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 410
110 to 220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
46
Strength to Weight: Axial, points 37
24 to 25
Strength to Weight: Bending, points 47
30 to 31
Thermal Diffusivity, mm2/s 62
51 to 56
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0
89 to 94
Copper (Cu), % 0.050 to 0.1
4.0 to 5.0
Iron (Fe), % 0
0 to 1.2
Magnesium (Mg), % 93.9 to 96.8
0 to 0.050
Manganese (Mn), % 0
0 to 0.35
Nickel (Ni), % 0 to 0.010
0 to 0.35
Silicon (Si), % 0
2.0 to 3.0
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.25
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 0.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.35