7020 Aluminum vs. 4015 Aluminum
Both 7020 aluminum and 4015 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.
For each property being compared, the top bar is 7020 aluminum and the bottom bar is 4015 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 45 to 100 | |
35 to 70 |
Elastic (Young's, Tensile) Modulus, GPa | 70 | |
70 |
Elongation at Break, % | 8.4 to 14 | |
1.1 to 23 |
Fatigue Strength, MPa | 110 to 130 | |
46 to 71 |
Poisson's Ratio | 0.33 | |
0.33 |
Shear Modulus, GPa | 26 | |
26 |
Shear Strength, MPa | 110 to 230 | |
82 to 120 |
Tensile Strength: Ultimate (UTS), MPa | 190 to 390 | |
130 to 220 |
Tensile Strength: Yield (Proof), MPa | 120 to 310 | |
50 to 200 |
Thermal Properties
Latent Heat of Fusion, J/g | 380 | |
420 |
Maximum Temperature: Mechanical, °C | 210 | |
160 |
Melting Completion (Liquidus), °C | 650 | |
640 |
Melting Onset (Solidus), °C | 610 | |
600 |
Specific Heat Capacity, J/kg-K | 880 | |
900 |
Thermal Conductivity, W/m-K | 150 | |
160 |
Thermal Expansion, µm/m-K | 23 | |
23 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 39 | |
41 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
130 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.5 | |
9.5 |
Density, g/cm3 | 2.9 | |
2.7 |
Embodied Carbon, kg CO2/kg material | 8.3 | |
8.1 |
Embodied Energy, MJ/kg | 150 | |
150 |
Embodied Water, L/kg | 1150 | |
1160 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 23 to 46 | |
2.4 to 24 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 690 | |
18 to 290 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 47 | |
50 |
Strength to Weight: Axial, points | 18 to 37 | |
13 to 22 |
Strength to Weight: Bending, points | 25 to 41 | |
21 to 30 |
Thermal Diffusivity, mm2/s | 59 | |
66 |
Thermal Shock Resistance, points | 8.3 to 17 | |
5.7 to 9.7 |
Alloy Composition
Aluminum (Al), % | 91.2 to 94.8 | |
94.9 to 97.9 |
Chromium (Cr), % | 0.1 to 0.35 | |
0 |
Copper (Cu), % | 0 to 0.2 | |
0 to 0.2 |
Iron (Fe), % | 0 to 0.4 | |
0 to 0.7 |
Magnesium (Mg), % | 1.0 to 1.4 | |
0.1 to 0.5 |
Manganese (Mn), % | 0.050 to 0.5 | |
0.6 to 1.2 |
Silicon (Si), % | 0 to 0.35 | |
1.4 to 2.2 |
Titanium (Ti), % | 0 to 0.25 | |
0 |
Zinc (Zn), % | 4.0 to 5.0 | |
0 to 0.2 |
Zirconium (Zr), % | 0.080 to 0.25 | |
0 |
Residuals, % | 0 | |
0 to 0.15 |