Chromium 33 vs. EN AC-48000 Aluminum
Chromium 33 belongs to the otherwise unclassified metals classification, while EN AC-48000 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, 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 chromium 33 and the bottom bar is EN AC-48000 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 73 |
| Elongation at Break, % | 45 | |
| 1.0 |
| Poisson's Ratio | 0.27 | |
| 0.33 |
| Shear Modulus, GPa | 81 | |
| 28 |
| Tensile Strength: Ultimate (UTS), MPa | 850 | |
| 220 to 310 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 210 to 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 570 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 890 |
| Thermal Expansion, µm/m-K | 14 | |
| 21 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 10 |
| Density, g/cm3 | 7.9 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 6.0 | |
| 7.9 |
| Embodied Energy, MJ/kg | 84 | |
| 140 |
| Embodied Water, L/kg | 250 | |
| 1030 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 320 | |
| 2.2 to 3.0 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 450 | |
| 300 to 510 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 25 | |
| 53 |
| Strength to Weight: Axial, points | 30 | |
| 23 to 33 |
| Strength to Weight: Bending, points | 25 | |
| 31 to 39 |
| Thermal Shock Resistance, points | 21 | |
| 10 to 15 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 80.4 to 87.2 |
| Carbon (C), % | 0 to 0.015 | |
| 0 |
| Chromium (Cr), % | 31 to 35 | |
| 0 |
| Copper (Cu), % | 0.3 to 1.2 | |
| 0.8 to 1.5 |
| Iron (Fe), % | 25.7 to 37.9 | |
| 0 to 0.7 |
| Magnesium (Mg), % | 0 | |
| 0.8 to 1.5 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 0.35 |
| Molybdenum (Mo), % | 0.5 to 2.0 | |
| 0 |
| Nickel (Ni), % | 30 to 33 | |
| 0.7 to 1.3 |
| Nitrogen (N), % | 0.35 to 0.6 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0 to 0.5 | |
| 10.5 to 13.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 | |
| 0 to 0.35 |
| Residuals, % | 0 | |
| 0 to 0.15 |