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ZK40A Magnesium vs. EN AC-51200 Aluminum

ZK40A magnesium belongs to the magnesium alloys classification, while EN AC-51200 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 ZK40A magnesium and the bottom bar is EN AC-51200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
67
Elongation at Break, % 4.2
1.1
Fatigue Strength, MPa 190
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
25
Tensile Strength: Ultimate (UTS), MPa 280
220
Tensile Strength: Yield (Proof), MPa 260
150

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 540
570
Specific Heat Capacity, J/kg-K 970
910
Thermal Conductivity, W/m-K 110
92
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
22
Electrical Conductivity: Equal Weight (Specific), % IACS 130
74

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 1.8
2.6
Embodied Carbon, kg CO2/kg material 24
9.6
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 950
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 740
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 65
51
Strength to Weight: Axial, points 43
24
Strength to Weight: Bending, points 53
31
Thermal Diffusivity, mm2/s 62
39
Thermal Shock Resistance, points 17
10

Alloy Composition


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Aluminum (Al), % 0
84.5 to 92
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 94.2 to 96.1
8.0 to 10.5
Manganese (Mn), % 0
0 to 0.55
Nickel (Ni), % 0
0 to 0.1
Silicon (Si), % 0
0 to 2.5
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 3.5 to 4.5
0 to 0.25
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15