EN 1.6571 Steel vs. Grade 18 Titanium
EN 1.6571 steel belongs to the iron alloys classification, while grade 18 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 1.6571 steel and the bottom bar is grade 18 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 | |
40 |
Tensile Strength: Ultimate (UTS), MPa | 520 to 1460 | |
690 to 980 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
410 |
Maximum Temperature: Mechanical, °C | 420 | |
330 |
Melting Completion (Liquidus), °C | 1460 | |
1640 |
Melting Onset (Solidus), °C | 1420 | |
1590 |
Specific Heat Capacity, J/kg-K | 470 | |
550 |
Thermal Conductivity, W/m-K | 40 | |
8.3 |
Thermal Expansion, µm/m-K | 13 | |
9.9 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
1.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
2.7 |
Otherwise Unclassified Properties
Density, g/cm3 | 7.9 | |
4.5 |
Embodied Carbon, kg CO2/kg material | 1.7 | |
41 |
Embodied Energy, MJ/kg | 22 | |
670 |
Embodied Water, L/kg | 53 | |
270 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
35 |
Strength to Weight: Axial, points | 19 to 51 | |
43 to 61 |
Strength to Weight: Bending, points | 18 to 36 | |
39 to 49 |
Thermal Diffusivity, mm2/s | 11 | |
3.4 |
Thermal Shock Resistance, points | 15 to 43 | |
47 to 67 |
Alloy Composition
Aluminum (Al), % | 0 | |
2.5 to 3.5 |
Carbon (C), % | 0.16 to 0.23 | |
0 to 0.080 |
Chromium (Cr), % | 0.6 to 0.9 | |
0 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Hydrogen (H), % | 0 | |
0 to 0.015 |
Iron (Fe), % | 95.3 to 97.1 | |
0 to 0.25 |
Manganese (Mn), % | 0.5 to 0.9 | |
0 |
Molybdenum (Mo), % | 0.25 to 0.35 | |
0 |
Nickel (Ni), % | 1.4 to 1.7 | |
0 |
Nitrogen (N), % | 0 | |
0 to 0.030 |
Oxygen (O), % | 0 | |
0 to 0.15 |
Palladium (Pd), % | 0 | |
0.040 to 0.080 |
Phosphorus (P), % | 0 to 0.025 | |
0 |
Silicon (Si), % | 0 to 0.3 | |
0 |
Sulfur (S), % | 0.020 to 0.040 | |
0 |
Titanium (Ti), % | 0 | |
92.5 to 95.5 |
Vanadium (V), % | 0 | |
2.0 to 3.0 |
Residuals, % | 0 | |
0 to 0.4 |