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2011 Aluminum vs. M1A Magnesium

2011 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 2011 aluminum and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 8.5 to 18
5.5
Fatigue Strength, MPa 74 to 120
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 190 to 250
120
Tensile Strength: Ultimate (UTS), MPa 310 to 420
230
Tensile Strength: Yield (Proof), MPa 140 to 310
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 190
95
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 540
580
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 140 to 170
150
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 45
35
Electrical Conductivity: Equal Weight (Specific), % IACS 100 to 130
190

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 7.9
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 52
11
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
71
Strength to Weight: Axial, points 27 to 37
38
Strength to Weight: Bending, points 32 to 40
49
Thermal Diffusivity, mm2/s 51 to 64
88
Thermal Shock Resistance, points 14 to 19
13

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
0
Bismuth (Bi), % 0.2 to 0.6
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 5.0 to 6.0
0 to 0.050
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 0
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.1
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.3