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EQ21A Magnesium vs. 1070A Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 1070A 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 1070A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
18 to 40
Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.4
2.3 to 33
Fatigue Strength, MPa 110
17 to 51
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
44 to 81
Tensile Strength: Ultimate (UTS), MPa 250
68 to 140
Tensile Strength: Yield (Proof), MPa 190
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 560
640
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
230
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
60
Electrical Conductivity: Equal Weight (Specific), % IACS 120
200

Otherwise Unclassified Properties

Base Metal Price, % relative 80
9.0
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 27
8.2
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
3.0 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 410
2.1 to 100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
50
Strength to Weight: Axial, points 37
7.0 to 14
Strength to Weight: Bending, points 47
14 to 22
Thermal Diffusivity, mm2/s 62
94
Thermal Shock Resistance, points 15
3.1 to 6.3

Alloy Composition


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Aluminum (Al), % 0
99.7 to 100
Copper (Cu), % 0.050 to 0.1
0 to 0.030
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 93.9 to 96.8
0 to 0.030
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0