Grade 20 Titanium vs. EN 1.4640 Stainless Steel
Grade 20 titanium belongs to the titanium alloys classification, while EN 1.4640 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 EN 1.4640 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 5.7 to 17 | |
| 51 |
| Fatigue Strength, MPa | 550 to 630 | |
| 230 to 250 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 47 | |
| 77 |
| Shear Strength, MPa | 560 to 740 | |
| 440 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1270 | |
| 620 to 650 |
| Tensile Strength: Yield (Proof), MPa | 850 to 1190 | |
| 240 to 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 930 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1420 |
| Melting Onset (Solidus), °C | 1600 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 5.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 52 | |
| 2.8 |
| Embodied Energy, MJ/kg | 860 | |
| 40 |
| Embodied Water, L/kg | 350 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 150 | |
| 250 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2940 to 5760 | |
| 150 to 170 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 33 | |
| 25 |
| Strength to Weight: Axial, points | 50 to 70 | |
| 22 to 23 |
| Strength to Weight: Bending, points | 41 to 52 | |
| 21 |
| Thermal Shock Resistance, points | 55 to 77 | |
| 14 to 15 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 0.030 to 0.080 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 18 to 19 |
| Copper (Cu), % | 0 | |
| 1.3 to 2.0 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 67.4 to 73.6 |
| Manganese (Mn), % | 0 | |
| 1.5 to 4.0 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 5.5 to 6.9 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0.030 to 0.11 |
| 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 0.5 |
| 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 |