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2195 Aluminum vs. EN-MC21120 Magnesium

2195 aluminum belongs to the aluminum alloys classification, while EN-MC21120 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 2195 aluminum and the bottom bar is EN-MC21120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 9.3
2.2 to 6.7
Fatigue Strength, MPa 190
84 to 96
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 350
110 to 160
Tensile Strength: Ultimate (UTS), MPa 590
200 to 270
Tensile Strength: Yield (Proof), MPa 560
130 to 170

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 550
490
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 130
76
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
59

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.6
22
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1470
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
5.0 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 2290
180 to 320
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
69
Strength to Weight: Axial, points 55
31 to 43
Strength to Weight: Bending, points 53
43 to 53
Thermal Diffusivity, mm2/s 49
44
Thermal Shock Resistance, points 26
11 to 16

Alloy Composition

Aluminum (Al), % 91.9 to 94.9
8.3 to 9.7
Copper (Cu), % 3.7 to 4.3
0 to 0.030
Iron (Fe), % 0 to 0.15
0 to 0.0050
Lithium (Li), % 0.8 to 1.2
0
Magnesium (Mg), % 0.25 to 0.8
88.6 to 91.3
Manganese (Mn), % 0 to 0.25
0.1 to 0.5
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.12
0 to 0.2
Silver (Ag), % 0.25 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0.35 to 1.0
Zirconium (Zr), % 0.080 to 0.16
0
Residuals, % 0
0 to 0.010