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AM50A Magnesium vs. 6082 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while 6082 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is AM50A magnesium and the bottom bar is 6082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
40 to 95
Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 11
6.3 to 18
Fatigue Strength, MPa 70
55 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 120
84 to 220
Tensile Strength: Ultimate (UTS), MPa 210
140 to 340
Tensile Strength: Yield (Proof), MPa 120
85 to 320

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 620
650
Melting Onset (Solidus), °C 570
580
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 65
160
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
42
Electrical Conductivity: Equal Weight (Specific), % IACS 88
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 23
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
19 to 43
Resilience: Unit (Modulus of Resilience), kJ/m3 150
52 to 710
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
50
Strength to Weight: Axial, points 35
14 to 35
Strength to Weight: Bending, points 47
21 to 40
Thermal Diffusivity, mm2/s 39
67
Thermal Shock Resistance, points 13
6.0 to 15

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
95.2 to 98.3
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0 to 0.010
0 to 0.1
Iron (Fe), % 0 to 0.0040
0 to 0.5
Magnesium (Mg), % 93.7 to 95.3
0.6 to 1.2
Manganese (Mn), % 0.26 to 0.6
0.4 to 1.0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0.7 to 1.3
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.22
0 to 0.2
Residuals, % 0
0 to 0.15