Grade 20 Titanium vs. S66286 Stainless Steel
Grade 20 titanium belongs to the titanium alloys classification, while S66286 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is grade 20 titanium and the bottom bar is S66286 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 5.7 to 17 | |
| 17 to 40 |
| Fatigue Strength, MPa | 550 to 630 | |
| 240 to 410 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 47 | |
| 75 |
| Shear Strength, MPa | 560 to 740 | |
| 420 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1270 | |
| 620 to 1020 |
| Tensile Strength: Yield (Proof), MPa | 850 to 1190 | |
| 280 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 920 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1430 |
| Melting Onset (Solidus), °C | 1600 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 470 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 5.0 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 52 | |
| 6.0 |
| Embodied Energy, MJ/kg | 860 | |
| 87 |
| Embodied Water, L/kg | 350 | |
| 170 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 150 | |
| 150 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2940 to 5760 | |
| 190 to 1150 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 33 | |
| 24 |
| Strength to Weight: Axial, points | 50 to 70 | |
| 22 to 36 |
| Strength to Weight: Bending, points | 41 to 52 | |
| 20 to 28 |
| Thermal Shock Resistance, points | 55 to 77 | |
| 13 to 22 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 to 0.35 |
| Boron (B), % | 0 | |
| 0.0010 to 0.010 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.080 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 13.5 to 16 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 49.1 to 59.5 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 1.0 to 1.5 |
| Nickel (Ni), % | 0 | |
| 24 to 27 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 71 to 77 | |
| 1.9 to 2.4 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0.1 to 0.5 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |