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3004 Aluminum vs. EN-MC21210 Magnesium

3004 aluminum belongs to the aluminum alloys classification, while EN-MC21210 magnesium belongs to the magnesium alloys. There are 31 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 3004 aluminum and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 83
48
Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 1.1 to 19
14
Fatigue Strength, MPa 55 to 120
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 100 to 180
110
Tensile Strength: Ultimate (UTS), MPa 170 to 310
190
Tensile Strength: Yield (Proof), MPa 68 to 270
90

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 630
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 160
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
24
Electrical Conductivity: Equal Weight (Specific), % IACS 140
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.6
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
22
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 18 to 31
32
Strength to Weight: Bending, points 25 to 37
44
Thermal Diffusivity, mm2/s 65
76
Thermal Shock Resistance, points 7.6 to 13
11

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
1.6 to 2.6
Copper (Cu), % 0 to 0.25
0 to 0.010
Iron (Fe), % 0 to 0.7
0 to 0.0050
Magnesium (Mg), % 0.8 to 1.3
96.3 to 98.3
Manganese (Mn), % 1.0 to 1.5
0.1 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.3
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.2
Residuals, % 0
0 to 0.010