Grade 18 Titanium vs. Monel 400
Grade 18 titanium belongs to the titanium alloys classification, while Monel 400 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is grade 18 titanium and the bottom bar is Monel 400.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 160 |
| Elongation at Break, % | 11 to 17 | |
| 20 to 40 |
| Fatigue Strength, MPa | 330 to 480 | |
| 230 to 290 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 40 | |
| 62 |
| Shear Strength, MPa | 420 to 590 | |
| 370 to 490 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 980 | |
| 540 to 780 |
| Tensile Strength: Yield (Proof), MPa | 540 to 810 | |
| 210 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 1000 |
| Melting Completion (Liquidus), °C | 1640 | |
| 1350 |
| Melting Onset (Solidus), °C | 1590 | |
| 1300 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 430 |
| Thermal Conductivity, W/m-K | 8.3 | |
| 23 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.3 | |
| 3.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 3.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 41 | |
| 7.9 |
| Embodied Energy, MJ/kg | 670 | |
| 110 |
| Embodied Water, L/kg | 270 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 110 | |
| 140 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1380 to 3110 | |
| 140 to 1080 |
| Stiffness to Weight: Axial, points | 13 | |
| 10 |
| Stiffness to Weight: Bending, points | 35 | |
| 21 |
| Strength to Weight: Axial, points | 43 to 61 | |
| 17 to 25 |
| Strength to Weight: Bending, points | 39 to 49 | |
| 17 to 21 |
| Thermal Diffusivity, mm2/s | 3.4 | |
| 6.1 |
| Thermal Shock Resistance, points | 47 to 67 | |
| 17 to 25 |
Alloy Composition
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| Aluminum (Al), % | 2.5 to 3.5 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.3 |
| Copper (Cu), % | 0 | |
| 28 to 34 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 2.5 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 63 to 72 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.15 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.024 |
| Titanium (Ti), % | 92.5 to 95.5 | |
| 0 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |