Grade 200 Maraging Steel vs. 7050 Aluminum
Grade 200 maraging steel belongs to the iron alloys classification, while 7050 aluminum belongs to the aluminum alloys. There are 24 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 grade 200 maraging steel and the bottom bar is 7050 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 70 |
| Elongation at Break, % | 9.1 to 18 | |
| 2.2 to 12 |
| Poisson's Ratio | 0.3 | |
| 0.32 |
| Shear Modulus, GPa | 74 | |
| 26 |
| Shear Strength, MPa | 600 to 890 | |
| 280 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1500 | |
| 490 to 570 |
| Tensile Strength: Yield (Proof), MPa | 690 to 1490 | |
| 390 to 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 370 |
| Melting Completion (Liquidus), °C | 1460 | |
| 630 |
| Melting Onset (Solidus), °C | 1420 | |
| 490 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 860 |
| Thermal Expansion, µm/m-K | 12 | |
| 24 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 10 |
| Density, g/cm3 | 8.2 | |
| 3.1 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 8.2 |
| Embodied Energy, MJ/kg | 59 | |
| 150 |
| Embodied Water, L/kg | 140 | |
| 1120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 10 to 55 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1240 to 5740 | |
| 1110 to 1760 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 45 |
| Strength to Weight: Axial, points | 33 to 51 | |
| 45 to 51 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 45 to 50 |
| Thermal Shock Resistance, points | 29 to 45 | |
| 21 to 25 |
Alloy Composition
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| Aluminum (Al), % | 0.050 to 0.15 | |
| 87.3 to 92.1 |
| Boron (B), % | 0 to 0.0030 | |
| 0 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0 to 0.040 |
| Cobalt (Co), % | 8.0 to 9.0 | |
| 0 |
| Copper (Cu), % | 0 | |
| 2.0 to 2.6 |
| Iron (Fe), % | 67.8 to 71.8 | |
| 0 to 0.15 |
| Magnesium (Mg), % | 0 | |
| 1.9 to 2.6 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 3.0 to 3.5 | |
| 0 |
| Nickel (Ni), % | 17 to 19 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.12 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0.15 to 0.25 | |
| 0 to 0.060 |
| Zinc (Zn), % | 0 | |
| 5.7 to 6.7 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0.080 to 0.15 |
| Residuals, % | 0 | |
| 0 to 0.15 |