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ZK51A Magnesium vs. 6023 Aluminum

ZK51A magnesium belongs to the magnesium alloys classification, while 6023 aluminum belongs to the aluminum alloys. There are 30 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 ZK51A magnesium and the bottom bar is 6023 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 4.7
11
Fatigue Strength, MPa 62
120 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 160
210 to 220
Tensile Strength: Ultimate (UTS), MPa 240
360
Tensile Strength: Yield (Proof), MPa 150
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
580
Specific Heat Capacity, J/kg-K 970
890
Thermal Conductivity, W/m-K 110
170
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
45
Electrical Conductivity: Equal Weight (Specific), % IACS 140
140

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 1.8
2.8
Embodied Carbon, kg CO2/kg material 24
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 940
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
38 to 39
Resilience: Unit (Modulus of Resilience), kJ/m3 260
670 to 690
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 64
49
Strength to Weight: Axial, points 36
35 to 36
Strength to Weight: Bending, points 47
40
Thermal Diffusivity, mm2/s 61
67
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0
94 to 97.7
Bismuth (Bi), % 0
0.3 to 0.8
Copper (Cu), % 0 to 0.1
0.2 to 0.5
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 93.1 to 95.9
0.4 to 0.9
Manganese (Mn), % 0
0.2 to 0.6
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0.6 to 1.4
Tin (Sn), % 0
0.6 to 1.2
Zinc (Zn), % 3.6 to 5.5
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.15