Grade 5 Titanium vs. Grade 20 Titanium
Both grade 5 titanium and grade 20 titanium are titanium alloys. They have 82% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is grade 20 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 8.6 to 11 | |
| 5.7 to 17 |
| Fatigue Strength, MPa | 530 to 630 | |
| 550 to 630 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Reduction in Area, % | 21 to 25 | |
| 23 |
| Shear Modulus, GPa | 40 | |
| 47 |
| Shear Strength, MPa | 600 to 710 | |
| 560 to 740 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 900 to 1270 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 850 to 1190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 370 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1660 |
| Melting Onset (Solidus), °C | 1650 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 520 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 9.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.4 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 52 |
| Embodied Energy, MJ/kg | 610 | |
| 860 |
| Embodied Water, L/kg | 200 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 71 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 2940 to 5760 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 33 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 50 to 70 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 41 to 52 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 55 to 77 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 3.0 to 4.0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 5.5 to 6.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 to 0.020 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 0.3 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 4.5 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 to 0.12 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Titanium (Ti), % | 87.4 to 91 | |
| 71 to 77 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 7.5 to 8.5 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.4 |