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7075 Aluminum vs. ZK60A Magnesium

7075 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 7075 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, % 1.8 to 12
4.5 to 9.9
Fatigue Strength, MPa 110 to 190
150 to 180
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 150 to 340
170 to 190
Tensile Strength: Ultimate (UTS), MPa 240 to 590
320 to 330
Tensile Strength: Yield (Proof), MPa 120 to 510
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 480
550
Specific Heat Capacity, J/kg-K 870
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 98
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
570 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
63
Strength to Weight: Axial, points 22 to 54
47 to 49
Strength to Weight: Bending, points 28 to 52
55 to 56
Thermal Diffusivity, mm2/s 50
66
Thermal Shock Resistance, points 10 to 25
19 to 20

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 2.1 to 2.9
92.5 to 94.8
Manganese (Mn), % 0 to 0.3
0
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
4.8 to 6.2
Zirconium (Zr), % 0 to 0.25
0.45 to 1.0
Residuals, % 0
0 to 0.3

Comparable Variants