Grade 20 Titanium vs. Nickel 690
Grade 20 titanium belongs to the titanium alloys classification, while nickel 690 belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is grade 20 titanium and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 5.7 to 17 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 550 to 630 | |
| 180 to 300 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 47 | |
| 79 |
| Shear Strength, MPa | 560 to 740 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1270 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 850 to 1190 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 1010 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1380 |
| Melting Onset (Solidus), °C | 1600 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 470 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 5.0 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 52 | |
| 8.2 |
| Embodied Energy, MJ/kg | 860 | |
| 120 |
| Embodied Water, L/kg | 350 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 150 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2940 to 5760 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 33 | |
| 24 |
| Strength to Weight: Axial, points | 50 to 70 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 41 to 52 | |
| 20 to 27 |
| Thermal Shock Resistance, points | 55 to 77 | |
| 16 to 25 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.050 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 27 to 31 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 7.0 to 11 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 58 to 66 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Titanium (Ti), % | 71 to 77 | |
| 0 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |