771.0 Aluminum vs. Grade 200 Maraging Steel
771.0 aluminum belongs to the aluminum alloys classification, while grade 200 maraging steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, 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 771.0 aluminum and the bottom bar is grade 200 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 190 |
| Elongation at Break, % | 1.7 to 6.5 | |
| 9.1 to 18 |
| Poisson's Ratio | 0.32 | |
| 0.3 |
| Shear Modulus, GPa | 26 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 250 to 370 | |
| 970 to 1500 |
| Tensile Strength: Yield (Proof), MPa | 210 to 350 | |
| 690 to 1490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 260 |
| Melting Completion (Liquidus), °C | 630 | |
| 1460 |
| Melting Onset (Solidus), °C | 620 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 460 |
| Thermal Expansion, µm/m-K | 24 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 31 |
| Density, g/cm3 | 3.0 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 4.5 |
| Embodied Energy, MJ/kg | 150 | |
| 59 |
| Embodied Water, L/kg | 1130 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.4 to 20 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 to 900 | |
| 1240 to 5740 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 23 |
| Strength to Weight: Axial, points | 23 to 35 | |
| 33 to 51 |
| Strength to Weight: Bending, points | 29 to 39 | |
| 27 to 35 |
| Thermal Shock Resistance, points | 11 to 16 | |
| 29 to 45 |
Alloy Composition
| Aluminum (Al), % | 90.5 to 92.5 | |
| 0.050 to 0.15 |
| Boron (B), % | 0 | |
| 0 to 0.0030 |
| Calcium (Ca), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0.060 to 0.2 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 8.0 to 9.0 |
| Copper (Cu), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.15 | |
| 67.8 to 71.8 |
| Magnesium (Mg), % | 0.8 to 1.0 | |
| 0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 3.0 to 3.5 |
| Nickel (Ni), % | 0 | |
| 17 to 19 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0.1 to 0.2 | |
| 0.15 to 0.25 |
| Zinc (Zn), % | 6.5 to 7.5 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |
| Residuals, % | 0 to 0.15 | |
| 0 |