EN 1.4729 Stainless Steel vs. Grade 20 Titanium
EN 1.4729 stainless steel belongs to the iron alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 16 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is EN 1.4729 stainless steel and the bottom bar is grade 20 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Elongation at Break, % | 15 | |
| 5.7 to 17 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 75 | |
| 47 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 370 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1660 |
| Melting Onset (Solidus), °C | 1380 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 520 |
| Thermal Expansion, µm/m-K | 10 | |
| 9.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.6 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 2.1 | |
| 52 |
| Embodied Energy, MJ/kg | 29 | |
| 860 |
| Embodied Water, L/kg | 100 | |
| 350 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 33 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 3.0 to 4.0 |
| Carbon (C), % | 0.3 to 0.5 | |
| 0 to 0.050 |
| Chromium (Cr), % | 12 to 14 | |
| 5.5 to 6.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.020 |
| Iron (Fe), % | 80.4 to 86.7 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 3.5 to 4.5 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.12 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 1.0 to 2.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 71 to 77 |
| Vanadium (V), % | 0 | |
| 7.5 to 8.5 |
| Zirconium (Zr), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |