Grade 5 Titanium vs. EN 1.7711 Steel
Grade 5 titanium belongs to the titanium alloys classification, while EN 1.7711 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is EN 1.7711 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 8.6 to 11 | |
| 16 to 22 |
| Fatigue Strength, MPa | 530 to 630 | |
| 290 to 520 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Shear Strength, MPa | 600 to 710 | |
| 440 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 690 to 930 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 400 to 800 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 430 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1460 |
| Melting Onset (Solidus), °C | 1650 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 470 |
| Thermal Conductivity, W/m-K | 6.8 | |
| 33 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 3.0 |
| Density, g/cm3 | 4.4 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 2.3 |
| Embodied Energy, MJ/kg | 610 | |
| 32 |
| Embodied Water, L/kg | 200 | |
| 54 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 130 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 430 to 1690 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 24 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 24 to 33 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 2.7 | |
| 8.9 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 24 to 32 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 to 0.015 |
| Carbon (C), % | 0 to 0.080 | |
| 0.36 to 0.44 |
| Chromium (Cr), % | 0 | |
| 0.9 to 1.2 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 96 to 97.5 |
| Manganese (Mn), % | 0 | |
| 0.45 to 0.85 |
| Molybdenum (Mo), % | 0 | |
| 0.5 to 0.65 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 87.4 to 91 | |
| 0 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0.25 to 0.35 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |