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204.0 Aluminum vs. M1A Magnesium

204.0 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 204.0 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, % 5.7 to 7.8
5.5
Fatigue Strength, MPa 63 to 77
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 230 to 340
230
Tensile Strength: Yield (Proof), MPa 180 to 220
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 650
610
Melting Onset (Solidus), °C 580
580
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 120
150
Thermal Expansion, µm/m-K 19
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29 to 34
35
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 100
190

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
11
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 350
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
71
Strength to Weight: Axial, points 21 to 31
38
Strength to Weight: Bending, points 28 to 36
49
Thermal Diffusivity, mm2/s 46
88
Thermal Shock Resistance, points 12 to 18
13

Alloy Composition

Aluminum (Al), % 93.4 to 95.5
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 4.2 to 5.0
0 to 0.050
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 0.15 to 0.35
97.2 to 98.8
Manganese (Mn), % 0 to 0.1
1.2 to 2.0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 0 to 0.2
0 to 0.1
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.3