ZK60A Magnesium vs. 7475 Aluminum
ZK60A magnesium belongs to the magnesium alloys classification, while 7475 aluminum belongs to the aluminum alloys.
For each property being compared, the top bar is ZK60A magnesium and the bottom bar is 7475 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 70 |
| Elongation at Break, % | 4.5 to 9.9 | |
| 10 to 12 |
| Fatigue Strength, MPa | 150 to 180 | |
| 190 to 210 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 18 | |
| 26 |
| Shear Strength, MPa | 170 to 190 | |
| 320 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 330 | |
| 530 to 590 |
| Tensile Strength: Yield (Proof), MPa | 230 to 250 | |
| 440 to 520 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 180 |
| Melting Completion (Liquidus), °C | 600 | |
| 640 |
| Melting Onset (Solidus), °C | 550 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 960 | |
| 870 |
| Thermal Conductivity, W/m-K | 120 | |
| 140 to 160 |
| Thermal Expansion, µm/m-K | 26 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 29 to 30 | |
| 33 to 42 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 | |
| 98 to 120 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 10 |
| Density, g/cm3 | 1.9 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 23 | |
| 8.2 |
| Embodied Energy, MJ/kg | 160 | |
| 150 |
| Embodied Water, L/kg | 940 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 14 to 29 | |
| 53 to 68 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 690 | |
| 1390 to 1920 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 63 | |
| 46 |
| Strength to Weight: Axial, points | 47 to 49 | |
| 49 to 55 |
| Strength to Weight: Bending, points | 55 to 56 | |
| 48 to 52 |
| Thermal Diffusivity, mm2/s | 66 | |
| 53 to 63 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 23 to 26 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 88.6 to 91.6 |
| Chromium (Cr), % | 0 | |
| 0.18 to 0.25 |
| Copper (Cu), % | 0 | |
| 1.2 to 1.9 |
| Iron (Fe), % | 0 | |
| 0 to 0.12 |
| Magnesium (Mg), % | 92.5 to 94.8 | |
| 1.9 to 2.6 |
| Manganese (Mn), % | 0 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Titanium (Ti), % | 0 | |
| 0 to 0.060 |
| Zinc (Zn), % | 4.8 to 6.2 | |
| 5.1 to 6.2 |
| Zirconium (Zr), % | 0.45 to 1.0 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.15 |