EN 1.6579 Steel vs. Grade 23 Titanium
EN 1.6579 steel belongs to the iron alloys classification, while grade 23 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.6579 steel and the bottom bar is grade 23 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 11 to 14 | |
| 6.7 to 11 |
| Fatigue Strength, MPa | 380 to 570 | |
| 470 to 500 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 850 to 980 | |
| 930 to 940 |
| Tensile Strength: Yield (Proof), MPa | 600 to 910 | |
| 850 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 340 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1610 |
| Melting Onset (Solidus), °C | 1410 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 560 |
| Thermal Conductivity, W/m-K | 39 | |
| 7.1 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.4 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 | |
| 1.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.7 | |
| 36 |
| Density, g/cm3 | 7.8 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 38 |
| Embodied Energy, MJ/kg | 22 | |
| 610 |
| Embodied Water, L/kg | 56 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 61 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 950 to 2210 | |
| 3430 to 3560 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 30 to 35 | |
| 58 to 59 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 48 |
| Thermal Diffusivity, mm2/s | 11 | |
| 2.9 |
| Thermal Shock Resistance, points | 25 to 29 | |
| 67 to 68 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 5.5 to 6.5 |
| Carbon (C), % | 0.32 to 0.38 | |
| 0 to 0.080 |
| Chromium (Cr), % | 1.4 to 1.7 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.013 |
| Iron (Fe), % | 94.2 to 96.1 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0.15 to 0.35 | |
| 0 |
| Nickel (Ni), % | 1.4 to 1.7 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.13 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 88.1 to 91 |
| Vanadium (V), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |