EN 1.7701 Steel vs. Grade 30 Titanium
EN 1.7701 steel belongs to the iron alloys classification, while grade 30 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is EN 1.7701 steel and the bottom bar is grade 30 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 2010 | |
| 390 |
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 | 44 | |
| 21 |
| Thermal Expansion, µm/m-K | 13 | |
| 8.7 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 3.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.5 | |
| 6.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 36 |
| Embodied Energy, MJ/kg | 26 | |
| 600 |
| Embodied Water, L/kg | 52 | |
| 230 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 24 to 71 | |
| 24 |
| Strength to Weight: Bending, points | 22 to 45 | |
| 26 |
| Thermal Diffusivity, mm2/s | 12 | |
| 8.6 |
| Thermal Shock Resistance, points | 20 to 59 | |
| 30 |
Alloy Composition
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| Carbon (C), % | 0.48 to 0.56 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 0.2 to 0.8 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 96.2 to 97.7 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0.7 to 1.1 | |
| 0 |
| Molybdenum (Mo), % | 0.15 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.25 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 98 to 99.76 |
| Vanadium (V), % | 0.1 to 0.2 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |