SAE-AISI 1108 Steel vs. 6008 Aluminum
SAE-AISI 1108 steel belongs to the iron alloys classification, while 6008 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 SAE-AISI 1108 steel and the bottom bar is 6008 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 69 |
| Elongation at Break, % | 23 to 34 | |
| 9.1 to 17 |
| Fatigue Strength, MPa | 170 to 260 | |
| 55 to 88 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 73 | |
| 26 |
| Shear Strength, MPa | 250 to 280 | |
| 120 to 170 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 440 | |
| 200 to 290 |
| Tensile Strength: Yield (Proof), MPa | 220 to 360 | |
| 100 to 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 180 |
| Melting Completion (Liquidus), °C | 1460 | |
| 640 |
| Melting Onset (Solidus), °C | 1420 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 900 |
| Thermal Conductivity, W/m-K | 52 | |
| 190 |
| Thermal Expansion, µm/m-K | 12 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 49 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 160 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 9.5 |
| Density, g/cm3 | 7.9 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 8.5 |
| Embodied Energy, MJ/kg | 18 | |
| 160 |
| Embodied Water, L/kg | 46 | |
| 1180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 95 to 110 | |
| 24 to 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 340 | |
| 76 to 360 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 50 |
| Strength to Weight: Axial, points | 13 to 16 | |
| 21 to 29 |
| Strength to Weight: Bending, points | 15 to 16 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 14 | |
| 77 |
| Thermal Shock Resistance, points | 12 to 14 | |
| 9.0 to 13 |
Alloy Composition
Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 460
| Aluminum (Al), % | 0 | |
| 96.5 to 99.1 |
| Carbon (C), % | 0.080 to 0.13 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0 to 0.3 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 98.9 to 99.24 | |
| 0 to 0.35 |
| Magnesium (Mg), % | 0 | |
| 0.4 to 0.7 |
| Manganese (Mn), % | 0.6 to 0.8 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.5 to 0.9 |
| Sulfur (S), % | 0.080 to 0.13 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.1 |
| Vanadium (V), % | 0 | |
| 0.050 to 0.2 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 | |
| 0 to 0.15 |