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ZK51A Magnesium vs. A444.0 Aluminum

ZK51A magnesium belongs to the magnesium alloys classification, while A444.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ZK51A magnesium and the bottom bar is A444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 4.7
18
Fatigue Strength, MPa 62
37
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Tensile Strength: Ultimate (UTS), MPa 240
160
Tensile Strength: Yield (Proof), MPa 150
66

Thermal Properties

Latent Heat of Fusion, J/g 340
500
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 550
590
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 110
160
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
41
Electrical Conductivity: Equal Weight (Specific), % IACS 140
140

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 1.8
2.6
Embodied Carbon, kg CO2/kg material 24
7.9
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 940
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
24
Resilience: Unit (Modulus of Resilience), kJ/m3 260
31
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 64
53
Strength to Weight: Axial, points 36
17
Strength to Weight: Bending, points 47
25
Thermal Diffusivity, mm2/s 61
68
Thermal Shock Resistance, points 15
7.3

Alloy Composition

Aluminum (Al), % 0
91.6 to 93.5
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0
0 to 0.2
Magnesium (Mg), % 93.1 to 95.9
0 to 0.050
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 3.6 to 5.5
0 to 0.1
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.15