6101B Aluminum vs. 7178 Aluminum
Both 6101B aluminum and 7178 aluminum are aluminum alloys. They have 88% of their average alloy composition in common.
For each property being compared, the top bar is 6101B aluminum and the bottom bar is 7178 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 68 | |
71 |
Elongation at Break, % | 9.1 to 13 | |
4.5 to 12 |
Fatigue Strength, MPa | 62 to 70 | |
120 to 210 |
Poisson's Ratio | 0.33 | |
0.32 |
Shear Modulus, GPa | 26 | |
27 |
Shear Strength, MPa | 120 to 150 | |
140 to 380 |
Tensile Strength: Ultimate (UTS), MPa | 190 to 250 | |
240 to 640 |
Tensile Strength: Yield (Proof), MPa | 140 to 180 | |
120 to 560 |
Thermal Properties
Latent Heat of Fusion, J/g | 400 | |
370 |
Maximum Temperature: Mechanical, °C | 160 | |
180 |
Melting Completion (Liquidus), °C | 640 | |
630 |
Melting Onset (Solidus), °C | 630 | |
480 |
Specific Heat Capacity, J/kg-K | 900 | |
860 |
Thermal Conductivity, W/m-K | 210 | |
130 |
Thermal Expansion, µm/m-K | 23 | |
23 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 57 | |
31 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 190 | |
91 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.5 | |
10 |
Density, g/cm3 | 2.7 | |
3.1 |
Embodied Carbon, kg CO2/kg material | 8.3 | |
8.2 |
Embodied Energy, MJ/kg | 150 | |
150 |
Embodied Water, L/kg | 1190 | |
1110 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 20 to 23 | |
24 to 52 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 240 | |
110 to 2220 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 50 | |
45 |
Strength to Weight: Axial, points | 20 to 25 | |
21 to 58 |
Strength to Weight: Bending, points | 27 to 32 | |
28 to 54 |
Thermal Diffusivity, mm2/s | 87 | |
47 |
Thermal Shock Resistance, points | 8.5 to 11 | |
10 to 28 |
Alloy Composition
Aluminum (Al), % | 98.2 to 99.3 | |
85.4 to 89.5 |
Chromium (Cr), % | 0 | |
0.18 to 0.28 |
Copper (Cu), % | 0 to 0.050 | |
1.6 to 2.4 |
Iron (Fe), % | 0.1 to 0.3 | |
0 to 0.5 |
Magnesium (Mg), % | 0.35 to 0.6 | |
2.4 to 3.1 |
Manganese (Mn), % | 0 to 0.050 | |
0 to 0.3 |
Silicon (Si), % | 0.3 to 0.6 | |
0 to 0.4 |
Titanium (Ti), % | 0 | |
0 to 0.2 |
Zinc (Zn), % | 0 to 0.1 | |
6.3 to 7.3 |
Residuals, % | 0 | |
0 to 0.15 |