EN 1.6553 Steel vs. Grade 31 Titanium
EN 1.6553 steel belongs to the iron alloys classification, while grade 31 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.6553 steel and the bottom bar is grade 31 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 19 to 21 | |
| 20 |
| Fatigue Strength, MPa | 330 to 460 | |
| 300 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 710 to 800 | |
| 510 |
| Tensile Strength: Yield (Proof), MPa | 470 to 670 | |
| 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 320 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1660 |
| Melting Onset (Solidus), °C | 1420 | |
| 1610 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 540 |
| Thermal Conductivity, W/m-K | 39 | |
| 21 |
| Thermal Expansion, µm/m-K | 13 | |
| 8.7 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 3.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 6.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 36 |
| Embodied Energy, MJ/kg | 21 | |
| 600 |
| Embodied Water, L/kg | 51 | |
| 230 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 150 | |
| 99 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 600 to 1190 | |
| 940 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 25 to 28 | |
| 32 |
| Strength to Weight: Bending, points | 23 to 24 | |
| 32 |
| Thermal Diffusivity, mm2/s | 10 | |
| 8.5 |
| Thermal Shock Resistance, points | 21 to 23 | |
| 39 |
Alloy Composition
| Carbon (C), % | 0.23 to 0.28 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0.4 to 0.8 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 0.2 to 0.8 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 95.6 to 98.2 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0.15 to 0.3 | |
| 0 |
| Nickel (Ni), % | 0.4 to 0.8 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.35 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0 to 0.8 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 97.9 to 99.76 |
| Vanadium (V), % | 0 to 0.030 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |