Grade 5 Titanium vs. Grade 350 Maraging Steel
Grade 5 titanium belongs to the titanium alloys classification, while grade 350 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 5 titanium and the bottom bar is grade 350 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 8.6 to 11 | |
| 4.1 to 18 |
| Poisson's Ratio | 0.32 | |
| 0.3 |
| Rockwell C Hardness | 33 | |
| 34 to 60 |
| Shear Modulus, GPa | 40 | |
| 75 |
| Shear Strength, MPa | 600 to 710 | |
| 710 to 1400 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 1140 to 2420 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 830 to 2300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 270 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1470 |
| Melting Onset (Solidus), °C | 1650 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 450 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 39 |
| Density, g/cm3 | 4.4 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 5.6 |
| Embodied Energy, MJ/kg | 610 | |
| 74 |
| Embodied Water, L/kg | 200 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 98 to 190 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 23 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 38 to 82 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 29 to 49 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 35 to 74 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 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 | |
| 11.5 to 12.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 61.2 to 64.6 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 4.6 to 5.2 |
| Nickel (Ni), % | 0 | |
| 18 to 19 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 87.4 to 91 | |
| 1.3 to 1.6 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |
| Residuals, % | 0 to 0.4 | |
| 0 |