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4145 Aluminum vs. ZC63A Magnesium

4145 aluminum belongs to the aluminum alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 30 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 4145 aluminum and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
48
Elongation at Break, % 2.2
3.3
Fatigue Strength, MPa 48
94
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
19
Shear Strength, MPa 69
130
Tensile Strength: Ultimate (UTS), MPa 120
220
Tensile Strength: Yield (Proof), MPa 68
130

Thermal Properties

Latent Heat of Fusion, J/g 540
330
Maximum Temperature: Mechanical, °C 160
98
Melting Completion (Liquidus), °C 590
550
Melting Onset (Solidus), °C 520
470
Specific Heat Capacity, J/kg-K 880
950
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
32
Electrical Conductivity: Equal Weight (Specific), % IACS 84
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.8
2.1
Embodied Carbon, kg CO2/kg material 7.6
22
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 31
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
58
Strength to Weight: Axial, points 12
29
Strength to Weight: Bending, points 19
38
Thermal Diffusivity, mm2/s 42
58
Thermal Shock Resistance, points 5.5
12

Alloy Composition

Aluminum (Al), % 83 to 87.4
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
2.4 to 3.0
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 0 to 0.15
89.2 to 91.9
Manganese (Mn), % 0 to 0.15
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 9.3 to 10.7
0 to 0.2
Zinc (Zn), % 0 to 0.2
5.5 to 6.5
Residuals, % 0
0 to 0.3