Titanium 4-4-2 vs. Grade 363 Molybdenum
Titanium 4-4-2 belongs to the titanium alloys classification, while grade 363 molybdenum belongs to the otherwise unclassified metals. There are 20 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 titanium 4-4-2 and the bottom bar is grade 363 molybdenum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 310 |
| Elongation at Break, % | 10 | |
| 6.2 to 11 |
| Poisson's Ratio | 0.32 | |
| 0.31 |
| Shear Modulus, GPa | 42 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 580 to 720 |
| Tensile Strength: Yield (Proof), MPa | 1030 to 1080 | |
| 350 to 620 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 370 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 250 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 7.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.7 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 30 | |
| 28 |
| Embodied Energy, MJ/kg | 480 | |
| 330 |
| Embodied Water, L/kg | 180 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 43 to 57 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4700 to 5160 | |
| 200 to 630 |
| Stiffness to Weight: Axial, points | 13 | |
| 17 |
| Stiffness to Weight: Bending, points | 34 | |
| 22 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 16 to 20 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 15 to 17 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 19 to 24 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 5.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.010 to 0.030 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.010 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 99.3 to 99.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0020 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 to 0.0020 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 to 0.0030 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 0 to 0.010 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0.4 to 0.55 |
| Zirconium (Zr), % | 0 | |
| 0.060 to 0.12 |
| Residuals, % | 0 to 0.4 | |
| 0 |