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2007 Aluminum vs. ZK60A Magnesium

2007 aluminum belongs to the aluminum alloys classification, while ZK60A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 2007 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, % 5.6 to 8.0
4.5 to 9.9
Fatigue Strength, MPa 91 to 110
150 to 180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 220 to 250
170 to 190
Tensile Strength: Ultimate (UTS), MPa 370 to 420
320 to 330
Tensile Strength: Yield (Proof), MPa 240 to 270
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 510
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 47
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 140
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.1
1.9
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1130
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
570 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
63
Strength to Weight: Axial, points 33 to 38
47 to 49
Strength to Weight: Bending, points 37 to 40
55 to 56
Thermal Diffusivity, mm2/s 48
66
Thermal Shock Resistance, points 16 to 19
19 to 20

Alloy Composition

Aluminum (Al), % 87.5 to 95
0
Bismuth (Bi), % 0 to 0.2
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.3 to 4.6
0
Iron (Fe), % 0 to 0.8
0
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.4 to 1.8
92.5 to 94.8
Manganese (Mn), % 0.5 to 1.0
0
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0 to 0.8
0
Tin (Sn), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3