Grade 20 Titanium vs. AISI 201LN Stainless Steel
Grade 20 titanium belongs to the titanium alloys classification, while AISI 201LN stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is grade 20 titanium and the bottom bar is AISI 201LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 5.7 to 17 | |
| 25 to 51 |
| Fatigue Strength, MPa | 550 to 630 | |
| 340 to 540 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 47 | |
| 77 |
| Shear Strength, MPa | 560 to 740 | |
| 530 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1270 | |
| 740 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 850 to 1190 | |
| 350 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 880 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1410 |
| Melting Onset (Solidus), °C | 1600 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 5.0 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 52 | |
| 2.6 |
| Embodied Energy, MJ/kg | 860 | |
| 38 |
| Embodied Water, L/kg | 350 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 150 | |
| 230 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2940 to 5760 | |
| 310 to 1520 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 33 | |
| 25 |
| Strength to Weight: Axial, points | 50 to 70 | |
| 27 to 38 |
| Strength to Weight: Bending, points | 41 to 52 | |
| 24 to 30 |
| Thermal Shock Resistance, points | 55 to 77 | |
| 16 to 23 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.030 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 16 to 17.5 |
| Copper (Cu), % | 0 | |
| 0 to 1.0 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 67.9 to 73.5 |
| Manganese (Mn), % | 0 | |
| 6.4 to 7.5 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 4.0 to 5.0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0.1 to 0.25 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 | |
| 0 to 0.75 |
| 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 |