7108A Aluminum vs. AWS E80C-B8
7108A aluminum belongs to the aluminum alloys classification, while AWS E80C-B8 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is 7108A aluminum and the bottom bar is AWS E80C-B8.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 190 |
| Elongation at Break, % | 11 to 13 | |
| 19 |
| Poisson's Ratio | 0.33 | |
| 0.28 |
| Shear Modulus, GPa | 26 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 620 |
| Tensile Strength: Yield (Proof), MPa | 290 to 300 | |
| 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 270 |
| Melting Completion (Liquidus), °C | 630 | |
| 1450 |
| Melting Onset (Solidus), °C | 520 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 470 |
| Thermal Conductivity, W/m-K | 150 | |
| 25 |
| Thermal Expansion, µm/m-K | 24 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 36 | |
| 9.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 6.5 |
| Density, g/cm3 | 2.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 2.1 |
| Embodied Energy, MJ/kg | 150 | |
| 28 |
| Embodied Water, L/kg | 1150 | |
| 89 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 38 to 44 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 610 to 640 | |
| 740 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 47 | |
| 25 |
| Strength to Weight: Axial, points | 33 to 34 | |
| 22 |
| Strength to Weight: Bending, points | 38 | |
| 21 |
| Thermal Diffusivity, mm2/s | 59 | |
| 6.9 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 17 |
Alloy Composition
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| Aluminum (Al), % | 91.6 to 94.4 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0 to 0.040 | |
| 8.0 to 10.5 |
| Copper (Cu), % | 0 to 0.050 | |
| 0 to 0.35 |
| Gallium (Ga), % | 0 to 0.030 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 85.5 to 90.6 |
| Magnesium (Mg), % | 0.7 to 1.5 | |
| 0 |
| Manganese (Mn), % | 0 to 0.050 | |
| 0.4 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.8 to 1.2 |
| Nickel (Ni), % | 0 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.2 | |
| 0.25 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.025 |
| Titanium (Ti), % | 0 to 0.030 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0 to 0.030 |
| Zinc (Zn), % | 4.8 to 5.8 | |
| 0 |
| Zirconium (Zr), % | 0.15 to 0.25 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.5 |