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EN-MC21210 Magnesium vs. 1070A Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while 1070A aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is EN-MC21210 magnesium and the bottom bar is 1070A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
18 to 40
Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 14
2.3 to 33
Fatigue Strength, MPa 70
17 to 51
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 110
44 to 81
Tensile Strength: Ultimate (UTS), MPa 190
68 to 140
Tensile Strength: Yield (Proof), MPa 90
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 100
170
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 570
640
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 120
230
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
60
Electrical Conductivity: Equal Weight (Specific), % IACS 130
200

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 24
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
3.0 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 92
2.1 to 100
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 32
7.0 to 14
Strength to Weight: Bending, points 44
14 to 22
Thermal Diffusivity, mm2/s 76
94
Thermal Shock Resistance, points 11
3.1 to 6.3

Alloy Composition

Aluminum (Al), % 1.6 to 2.6
99.7 to 100
Copper (Cu), % 0 to 0.010
0 to 0.030
Iron (Fe), % 0 to 0.0050
0 to 0.25
Magnesium (Mg), % 96.3 to 98.3
0 to 0.030
Manganese (Mn), % 0.1 to 0.7
0 to 0.030
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0 to 0.2
Titanium (Ti), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0 to 0.070
Residuals, % 0 to 0.010
0