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5182 Aluminum vs. M1A Magnesium

5182 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 5182 aluminum and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 1.1 to 12
5.5
Fatigue Strength, MPa 100 to 130
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
18
Shear Strength, MPa 170 to 240
120
Tensile Strength: Ultimate (UTS), MPa 280 to 420
230
Tensile Strength: Yield (Proof), MPa 130 to 360
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 180
95
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 590
580
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
35
Electrical Conductivity: Equal Weight (Specific), % IACS 94
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.9
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
11
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
71
Strength to Weight: Axial, points 29 to 44
38
Strength to Weight: Bending, points 36 to 47
49
Thermal Diffusivity, mm2/s 53
88
Thermal Shock Resistance, points 12 to 19
13

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0
Calcium (Ca), % 0
0 to 0.3
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.15
0 to 0.050
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 4.0 to 5.0
97.2 to 98.8
Manganese (Mn), % 0.2 to 0.5
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.3