EN 1.7710 Steel vs. Grade 9 Titanium
EN 1.7710 steel belongs to the iron alloys classification, while grade 9 titanium belongs to the titanium alloys. There are 29 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 1.7710 steel and the bottom bar is grade 9 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 6.8 to 11 | |
| 11 to 17 |
| Fatigue Strength, MPa | 500 to 620 | |
| 330 to 480 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 930 to 1070 | |
| 700 to 960 |
| Tensile Strength: Yield (Proof), MPa | 800 to 1060 | |
| 540 to 830 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 330 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1640 |
| Melting Onset (Solidus), °C | 1430 | |
| 1590 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 550 |
| Thermal Conductivity, W/m-K | 41 | |
| 8.1 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.1 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 1.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.5 | |
| 37 |
| Density, g/cm3 | 7.8 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 36 |
| Embodied Energy, MJ/kg | 30 | |
| 580 |
| Embodied Water, L/kg | 57 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 to 100 | |
| 89 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1680 to 2970 | |
| 1380 to 3220 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 33 to 38 | |
| 43 to 60 |
| Strength to Weight: Bending, points | 27 to 30 | |
| 39 to 48 |
| Thermal Diffusivity, mm2/s | 11 | |
| 3.3 |
| Thermal Shock Resistance, points | 27 to 31 | |
| 52 to 71 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 2.5 to 3.5 |
| Carbon (C), % | 0.12 to 0.18 | |
| 0 to 0.080 |
| Chromium (Cr), % | 1.3 to 1.8 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 95.1 to 97 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0.8 to 1.0 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.15 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 92.6 to 95.5 |
| Vanadium (V), % | 0.15 to 0.25 | |
| 2.0 to 3.0 |
| Residuals, % | 0 | |
| 0 to 0.4 |