Titanium 4-4-2 vs. Nickel 718
Titanium 4-4-2 belongs to the titanium alloys classification, while nickel 718 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is titanium 4-4-2 and the bottom bar is nickel 718.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 10 | |
| 12 to 50 |
| Fatigue Strength, MPa | 590 to 620 | |
| 460 to 760 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Reduction in Area, % | 20 | |
| 34 to 64 |
| Shear Modulus, GPa | 42 | |
| 75 |
| Shear Strength, MPa | 690 to 750 | |
| 660 to 950 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 930 to 1530 |
| Tensile Strength: Yield (Proof), MPa | 1030 to 1080 | |
| 510 to 1330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 980 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1340 |
| Melting Onset (Solidus), °C | 1560 | |
| 1260 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 450 |
| Thermal Conductivity, W/m-K | 6.7 | |
| 11 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 75 |
| Density, g/cm3 | 4.7 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 30 | |
| 13 |
| Embodied Energy, MJ/kg | 480 | |
| 190 |
| Embodied Water, L/kg | 180 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 140 to 390 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4700 to 5160 | |
| 660 to 4560 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 23 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 31 to 51 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 25 to 35 |
| Thermal Diffusivity, mm2/s | 2.6 | |
| 3.0 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 27 to 44 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 5.0 | |
| 0.2 to 0.8 |
| Boron (B), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 17 to 21 |
| Cobalt (Co), % | 0 | |
| 0 to 1.0 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 11.1 to 24.6 |
| Manganese (Mn), % | 0 | |
| 0 to 0.35 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 2.8 to 3.3 |
| Nickel (Ni), % | 0 | |
| 50 to 55 |
| Niobium (Nb), % | 0 | |
| 4.8 to 5.5 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0.65 to 1.2 |
| Residuals, % | 0 to 0.4 | |
| 0 |