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4104 Aluminum vs. M1A Magnesium

4104 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 4104 aluminum and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 2.4
5.5
Fatigue Strength, MPa 42
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 63
120
Tensile Strength: Ultimate (UTS), MPa 110
230
Tensile Strength: Yield (Proof), MPa 60
130

Thermal Properties

Latent Heat of Fusion, J/g 540
350
Maximum Temperature: Mechanical, °C 160
95
Melting Completion (Liquidus), °C 600
610
Melting Onset (Solidus), °C 560
580
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
35
Electrical Conductivity: Equal Weight (Specific), % IACS 120
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
1.7
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1080
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
11
Resilience: Unit (Modulus of Resilience), kJ/m3 25
180
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 54
71
Strength to Weight: Axial, points 12
38
Strength to Weight: Bending, points 20
49
Thermal Diffusivity, mm2/s 58
88
Thermal Shock Resistance, points 5.1
13

Alloy Composition

Aluminum (Al), % 85.8 to 90
0
Bismuth (Bi), % 0.020 to 0.2
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 1.0 to 2.0
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), % 9.0 to 10.5
0 to 0.1
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.3