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6025 Aluminum vs. ZK60A Magnesium

6025 aluminum belongs to the aluminum alloys classification, while ZK60A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 6025 aluminum and the bottom bar is ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 2.8 to 10
4.5 to 9.9
Fatigue Strength, MPa 67 to 110
150 to 180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 110 to 140
170 to 190
Tensile Strength: Ultimate (UTS), MPa 190 to 240
320 to 330
Tensile Strength: Yield (Proof), MPa 68 to 210
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 900
960
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.5
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 15
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 310
570 to 690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 19 to 24
47 to 49
Strength to Weight: Bending, points 26 to 31
55 to 56
Thermal Diffusivity, mm2/s 54
66
Thermal Shock Resistance, points 8.2 to 10
19 to 20

Alloy Composition

Aluminum (Al), % 91.7 to 96.3
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0.2 to 0.7
0
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 2.1 to 3.0
92.5 to 94.8
Manganese (Mn), % 0.6 to 1.4
0
Silicon (Si), % 0.8 to 1.5
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3