MakeItFrom.com
Menu (ESC)

EQ21A Magnesium vs. 2017 Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 2017 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 2017 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
71
Elongation at Break, % 2.4
12 to 18
Fatigue Strength, MPa 110
90 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 150
130 to 260
Tensile Strength: Ultimate (UTS), MPa 250
190 to 430
Tensile Strength: Yield (Proof), MPa 190
76 to 260

Thermal Properties

Latent Heat of Fusion, J/g 340
390
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 560
510
Specific Heat Capacity, J/kg-K 980
880
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
38
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 80
10
Density, g/cm3 1.9
3.0
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
24 to 66
Resilience: Unit (Modulus of Resilience), kJ/m3 410
41 to 470
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
46
Strength to Weight: Axial, points 37
17 to 40
Strength to Weight: Bending, points 47
24 to 42
Thermal Diffusivity, mm2/s 62
56
Thermal Shock Resistance, points 15
7.9 to 18

Alloy Composition

Aluminum (Al), % 0
91.6 to 95.5
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.050 to 0.1
3.5 to 4.5
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 93.9 to 96.8
0.4 to 0.8
Manganese (Mn), % 0
0.4 to 1.0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.2 to 0.8
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.15
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15