Monel 400 vs. Grade 18 Titanium
Monel 400 belongs to the nickel alloys classification, while grade 18 titanium belongs to the titanium 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 Monel 400 and the bottom bar is grade 18 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 160 | |
| 110 |
| Elongation at Break, % | 20 to 40 | |
| 11 to 17 |
| Fatigue Strength, MPa | 230 to 290 | |
| 330 to 480 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 62 | |
| 40 |
| Shear Strength, MPa | 370 to 490 | |
| 420 to 590 |
| Tensile Strength: Ultimate (UTS), MPa | 540 to 780 | |
| 690 to 980 |
| Tensile Strength: Yield (Proof), MPa | 210 to 590 | |
| 540 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 330 |
| Melting Completion (Liquidus), °C | 1350 | |
| 1640 |
| Melting Onset (Solidus), °C | 1300 | |
| 1590 |
| Specific Heat Capacity, J/kg-K | 430 | |
| 550 |
| Thermal Conductivity, W/m-K | 23 | |
| 8.3 |
| Thermal Expansion, µm/m-K | 14 | |
| 9.9 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.3 | |
| 1.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.4 | |
| 2.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.9 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 7.9 | |
| 41 |
| Embodied Energy, MJ/kg | 110 | |
| 670 |
| Embodied Water, L/kg | 250 | |
| 270 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 180 | |
| 87 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 1080 | |
| 1380 to 3110 |
| Stiffness to Weight: Axial, points | 10 | |
| 13 |
| Stiffness to Weight: Bending, points | 21 | |
| 35 |
| Strength to Weight: Axial, points | 17 to 25 | |
| 43 to 61 |
| Strength to Weight: Bending, points | 17 to 21 | |
| 39 to 49 |
| Thermal Diffusivity, mm2/s | 6.1 | |
| 3.4 |
| Thermal Shock Resistance, points | 17 to 25 | |
| 47 to 67 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 2.5 to 3.5 |
| Carbon (C), % | 0 to 0.3 | |
| 0 to 0.080 |
| Copper (Cu), % | 28 to 34 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 2.5 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 63 to 72 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.15 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.024 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 92.5 to 95.5 |
| Vanadium (V), % | 0 | |
| 2.0 to 3.0 |
| Residuals, % | 0 | |
| 0 to 0.4 |