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6008 Aluminum vs. M1A Magnesium

6008 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 6008 aluminum and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 9.1 to 17
5.5
Fatigue Strength, MPa 55 to 88
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 120 to 170
120
Tensile Strength: Ultimate (UTS), MPa 200 to 290
230
Tensile Strength: Yield (Proof), MPa 100 to 220
130

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 180
95
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 620
580
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 190
150
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
35
Electrical Conductivity: Equal Weight (Specific), % IACS 160
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.5
24
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1180
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 28
11
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 360
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
71
Strength to Weight: Axial, points 21 to 29
38
Strength to Weight: Bending, points 28 to 35
49
Thermal Diffusivity, mm2/s 77
88
Thermal Shock Resistance, points 9.0 to 13
13

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
0
Calcium (Ca), % 0
0 to 0.3
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0 to 0.050
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 0.4 to 0.7
97.2 to 98.8
Manganese (Mn), % 0 to 0.3
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.5 to 0.9
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Vanadium (V), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.3