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C355.0 Aluminum vs. QE22A Magnesium

C355.0 aluminum belongs to the aluminum alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C355.0 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86 to 90
80
Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 2.7 to 3.8
2.4
Fatigue Strength, MPa 76 to 84
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Tensile Strength: Ultimate (UTS), MPa 290 to 310
250
Tensile Strength: Yield (Proof), MPa 200 to 230
190

Thermal Properties

Latent Heat of Fusion, J/g 470
340
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
570
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.3
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
25
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Density, g/cm3 2.7
2.0
Embodied Carbon, kg CO2/kg material 8.0
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.5 to 9.8
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 380
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
60
Strength to Weight: Axial, points 30 to 32
36
Strength to Weight: Bending, points 36 to 37
46
Thermal Diffusivity, mm2/s 60
59
Thermal Shock Resistance, points 13 to 14
15

Alloy Composition

Aluminum (Al), % 91.7 to 94.1
0
Copper (Cu), % 1.0 to 1.5
0 to 0.1
Iron (Fe), % 0 to 0.2
0
Magnesium (Mg), % 0.4 to 0.6
93.1 to 95.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 4.5 to 5.5
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.2
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3