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EN AC-21200 Aluminum vs. M1A Magnesium

EN AC-21200 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-21200 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, % 3.9 to 6.2
5.5
Fatigue Strength, MPa 110 to 130
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 410 to 440
230
Tensile Strength: Yield (Proof), MPa 270 to 360
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 660
610
Melting Onset (Solidus), °C 550
580
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
35
Electrical Conductivity: Equal Weight (Specific), % IACS 100
190

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 22
11
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 930
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
71
Strength to Weight: Axial, points 38 to 40
38
Strength to Weight: Bending, points 41 to 43
49
Thermal Diffusivity, mm2/s 49
88
Thermal Shock Resistance, points 18 to 19
13

Alloy Composition

Aluminum (Al), % 93.3 to 95.7
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 4.0 to 5.0
0 to 0.050
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0.15 to 0.5
97.2 to 98.8
Manganese (Mn), % 0.2 to 0.5
1.2 to 2.0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.3