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3203 Aluminum vs. M1A Magnesium

3203 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 3203 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, % 4.5 to 29
5.5
Fatigue Strength, MPa 46 to 92
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 72 to 120
120
Tensile Strength: Ultimate (UTS), MPa 110 to 200
230
Tensile Strength: Yield (Proof), MPa 39 to 190
130

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 180
95
Melting Completion (Liquidus), °C 650
610
Melting Onset (Solidus), °C 620
580
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 170
150
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
35
Electrical Conductivity: Equal Weight (Specific), % IACS 140
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.1
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
11
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
71
Strength to Weight: Axial, points 11 to 20
38
Strength to Weight: Bending, points 19 to 28
49
Thermal Diffusivity, mm2/s 70
88
Thermal Shock Resistance, points 4.9 to 8.8
13

Alloy Composition

Aluminum (Al), % 96.9 to 99
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.050
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 1.0 to 1.5
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.6
0 to 0.1
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.3