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EN AC-42200 Aluminum vs. M1A Magnesium

EN AC-42200 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 29 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 EN AC-42200 aluminum and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 3.0 to 6.7
5.5
Fatigue Strength, MPa 86 to 90
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 320
230
Tensile Strength: Yield (Proof), MPa 240 to 260
130

Thermal Properties

Latent Heat of Fusion, J/g 500
350
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 610
610
Melting Onset (Solidus), °C 600
580
Specific Heat Capacity, J/kg-K 910
990
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
35
Electrical Conductivity: Equal Weight (Specific), % IACS 140
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
1.7
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 20
11
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 490
180
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 53
71
Strength to Weight: Axial, points 34 to 35
38
Strength to Weight: Bending, points 40 to 41
49
Thermal Diffusivity, mm2/s 66
88
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 91 to 93.1
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.050
Iron (Fe), % 0 to 0.19
0
Magnesium (Mg), % 0.45 to 0.7
97.2 to 98.8
Manganese (Mn), % 0 to 0.1
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 6.5 to 7.5
0 to 0.1
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0
0 to 0.3