Grade 9 Titanium vs. Grade 200 Maraging Steel
Grade 9 titanium belongs to the titanium alloys classification, while grade 200 maraging steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is grade 9 titanium and the bottom bar is grade 200 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 11 to 17 | |
| 9.1 to 18 |
| Poisson's Ratio | 0.32 | |
| 0.3 |
| Shear Modulus, GPa | 40 | |
| 74 |
| Shear Strength, MPa | 430 to 580 | |
| 600 to 890 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 960 | |
| 970 to 1500 |
| Tensile Strength: Yield (Proof), MPa | 540 to 830 | |
| 690 to 1490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 260 |
| Melting Completion (Liquidus), °C | 1640 | |
| 1460 |
| Melting Onset (Solidus), °C | 1590 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 460 |
| Thermal Expansion, µm/m-K | 9.1 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 31 |
| Density, g/cm3 | 4.5 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 36 | |
| 4.5 |
| Embodied Energy, MJ/kg | 580 | |
| 59 |
| Embodied Water, L/kg | 150 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 110 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1380 to 3220 | |
| 1240 to 5740 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 23 |
| Strength to Weight: Axial, points | 43 to 60 | |
| 33 to 51 |
| Strength to Weight: Bending, points | 39 to 48 | |
| 27 to 35 |
| Thermal Shock Resistance, points | 52 to 71 | |
| 29 to 45 |
Alloy Composition
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| Aluminum (Al), % | 2.5 to 3.5 | |
| 0.050 to 0.15 |
| Boron (B), % | 0 | |
| 0 to 0.0030 |
| Calcium (Ca), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.030 |
| Cobalt (Co), % | 0 | |
| 8.0 to 9.0 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 67.8 to 71.8 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 3.0 to 3.5 |
| Nickel (Ni), % | 0 | |
| 17 to 19 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.15 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 92.6 to 95.5 | |
| 0.15 to 0.25 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |
| Residuals, % | 0 to 0.4 | |
| 0 |