EN 1.3555 Steel vs. Grade 7 Titanium
EN 1.3555 steel belongs to the iron alloys classification, while grade 7 titanium belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is grade 7 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 | |
| 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 75 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 770 | |
| 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 540 | |
| 320 |
| Melting Completion (Liquidus), °C | 1500 | |
| 1660 |
| Melting Onset (Solidus), °C | 1450 | |
| 1610 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 540 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.2 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 9.3 | |
| 3.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 11 | |
| 7.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 47 |
| Embodied Energy, MJ/kg | 81 | |
| 800 |
| Embodied Water, L/kg | 90 | |
| 470 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 27 | |
| 26 |
| Strength to Weight: Bending, points | 23 | |
| 28 |
| Thermal Shock Resistance, points | 22 | |
| 31 |
Alloy Composition
| Carbon (C), % | 0.1 to 0.15 | |
| 0 to 0.080 |
| Chromium (Cr), % | 3.9 to 4.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.1 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 85.4 to 87.7 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0.15 to 0.35 | |
| 0 |
| Molybdenum (Mo), % | 4.0 to 4.5 | |
| 0 |
| Nickel (Ni), % | 3.2 to 3.6 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.25 |
| Palladium (Pd), % | 0 | |
| 0.12 to 0.25 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0.1 to 0.25 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 98.7 to 99.88 |
| Tungsten (W), % | 0 to 0.15 | |
| 0 |
| Vanadium (V), % | 1.0 to 1.3 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |