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6105 Aluminum vs. M1A Magnesium

6105 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 6105 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, % 9.0 to 16
5.5
Fatigue Strength, MPa 95 to 130
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 190 to 280
230
Tensile Strength: Yield (Proof), MPa 120 to 270
130

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 160
95
Melting Completion (Liquidus), °C 650
610
Melting Onset (Solidus), °C 600
580
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 180 to 190
150
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46 to 50
35
Electrical Conductivity: Equal Weight (Specific), % IACS 150 to 170
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
11
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
71
Strength to Weight: Axial, points 20 to 29
38
Strength to Weight: Bending, points 28 to 35
49
Thermal Diffusivity, mm2/s 72 to 79
88
Thermal Shock Resistance, points 8.6 to 12
13

Alloy Composition

Aluminum (Al), % 97.2 to 99
0
Calcium (Ca), % 0
0 to 0.3
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 0.45 to 0.8
97.2 to 98.8
Manganese (Mn), % 0 to 0.1
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.6 to 1.0
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.3