7049 Aluminum vs. 2218 Aluminum
Both 7049 aluminum and 2218 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common.
For each property being compared, the top bar is 7049 aluminum and the bottom bar is 2218 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 140 | |
95 to 110 |
Elastic (Young's, Tensile) Modulus, GPa | 70 | |
73 |
Elongation at Break, % | 6.2 to 7.0 | |
6.8 to 10 |
Fatigue Strength, MPa | 160 to 170 | |
110 |
Poisson's Ratio | 0.32 | |
0.33 |
Shear Modulus, GPa | 27 | |
27 |
Shear Strength, MPa | 300 to 310 | |
210 to 250 |
Tensile Strength: Ultimate (UTS), MPa | 510 to 530 | |
330 to 430 |
Tensile Strength: Yield (Proof), MPa | 420 to 450 | |
260 to 310 |
Thermal Properties
Latent Heat of Fusion, J/g | 370 | |
390 |
Maximum Temperature: Mechanical, °C | 180 | |
220 |
Melting Completion (Liquidus), °C | 640 | |
640 |
Melting Onset (Solidus), °C | 480 | |
510 |
Specific Heat Capacity, J/kg-K | 860 | |
870 |
Thermal Conductivity, W/m-K | 130 | |
140 |
Thermal Expansion, µm/m-K | 23 | |
22 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 36 | |
37 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
110 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 10 | |
11 |
Density, g/cm3 | 3.1 | |
3.1 |
Embodied Carbon, kg CO2/kg material | 8.1 | |
8.2 |
Embodied Energy, MJ/kg | 140 | |
150 |
Embodied Water, L/kg | 1110 | |
1130 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 34 | |
27 to 31 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 1270 to 1440 | |
450 to 650 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 45 | |
45 |
Strength to Weight: Axial, points | 46 to 47 | |
30 to 39 |
Strength to Weight: Bending, points | 46 to 47 | |
34 to 41 |
Thermal Diffusivity, mm2/s | 51 | |
52 |
Thermal Shock Resistance, points | 22 to 23 | |
15 to 19 |
Alloy Composition
Aluminum (Al), % | 85.7 to 89.5 | |
88.8 to 93.6 |
Chromium (Cr), % | 0.1 to 0.22 | |
0 to 0.1 |
Copper (Cu), % | 1.2 to 1.9 | |
3.5 to 4.5 |
Iron (Fe), % | 0 to 0.35 | |
0 to 1.0 |
Magnesium (Mg), % | 2.0 to 2.9 | |
1.2 to 1.8 |
Manganese (Mn), % | 0 to 0.2 | |
0 to 0.2 |
Nickel (Ni), % | 0 | |
1.7 to 2.3 |
Silicon (Si), % | 0 to 0.25 | |
0 to 0.9 |
Titanium (Ti), % | 0 to 0.1 | |
0 |
Zinc (Zn), % | 7.2 to 8.2 | |
0 to 0.25 |
Residuals, % | 0 | |
0 to 0.15 |