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2618 Aluminum vs. ZK60A Magnesium

2618 aluminum belongs to the aluminum alloys classification, while ZK60A magnesium belongs to the magnesium 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 2618 aluminum and the bottom bar is ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 5.8
4.5 to 9.9
Fatigue Strength, MPa 110
150 to 180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 260
170 to 190
Tensile Strength: Ultimate (UTS), MPa 420
320 to 330
Tensile Strength: Yield (Proof), MPa 350
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 880
960
Thermal Conductivity, W/m-K 160
120
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 2.9
1.9
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 850
570 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
63
Strength to Weight: Axial, points 40
47 to 49
Strength to Weight: Bending, points 42
55 to 56
Thermal Diffusivity, mm2/s 62
66
Thermal Shock Resistance, points 19
19 to 20

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0
Copper (Cu), % 1.9 to 2.7
0
Iron (Fe), % 0.9 to 1.3
0
Magnesium (Mg), % 1.3 to 1.8
92.5 to 94.8
Nickel (Ni), % 0.9 to 1.2
0
Silicon (Si), % 0.1 to 0.25
0
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3