EN 1.7706 Steel vs. Grade 29 Titanium
EN 1.7706 steel belongs to the iron alloys classification, while grade 29 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.7706 steel and the bottom bar is grade 29 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
110 |
Elongation at Break, % | 17 | |
6.8 to 11 |
Fatigue Strength, MPa | 330 | |
460 to 510 |
Poisson's Ratio | 0.29 | |
0.32 |
Shear Modulus, GPa | 73 | |
40 |
Tensile Strength: Ultimate (UTS), MPa | 690 | |
930 to 940 |
Tensile Strength: Yield (Proof), MPa | 500 | |
850 to 870 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
410 |
Maximum Temperature: Mechanical, °C | 440 | |
340 |
Melting Completion (Liquidus), °C | 1470 | |
1610 |
Melting Onset (Solidus), °C | 1430 | |
1560 |
Specific Heat Capacity, J/kg-K | 470 | |
560 |
Thermal Conductivity, W/m-K | 40 | |
7.3 |
Thermal Expansion, µm/m-K | 13 | |
9.3 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
1.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
2.0 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 3.7 | |
36 |
Density, g/cm3 | 7.9 | |
4.5 |
Embodied Carbon, kg CO2/kg material | 2.3 | |
39 |
Embodied Energy, MJ/kg | 32 | |
640 |
Embodied Water, L/kg | 57 | |
410 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
62 to 100 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 670 | |
3420 to 3540 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
35 |
Strength to Weight: Axial, points | 24 | |
58 to 59 |
Strength to Weight: Bending, points | 22 | |
47 to 48 |
Thermal Diffusivity, mm2/s | 11 | |
2.9 |
Thermal Shock Resistance, points | 20 | |
68 to 69 |
Alloy Composition
Aluminum (Al), % | 0 | |
5.5 to 6.5 |
Carbon (C), % | 0.15 to 0.2 | |
0 to 0.080 |
Chromium (Cr), % | 1.2 to 1.5 | |
0 |
Copper (Cu), % | 0 to 0.3 | |
0 |
Hydrogen (H), % | 0 | |
0 to 0.015 |
Iron (Fe), % | 94.7 to 97.1 | |
0 to 0.25 |
Manganese (Mn), % | 0.5 to 0.9 | |
0 |
Molybdenum (Mo), % | 0.9 to 1.1 | |
0 |
Nickel (Ni), % | 0 to 0.4 | |
0 |
Nitrogen (N), % | 0 | |
0 to 0.030 |
Oxygen (O), % | 0 | |
0 to 0.13 |
Phosphorus (P), % | 0 to 0.020 | |
0 |
Ruthenium (Ru), % | 0 | |
0.080 to 0.14 |
Silicon (Si), % | 0 to 0.6 | |
0 |
Sulfur (S), % | 0 to 0.015 | |
0 |
Titanium (Ti), % | 0 | |
88 to 90.9 |
Vanadium (V), % | 0.2 to 0.3 | |
3.5 to 4.5 |
Residuals, % | 0 | |
0 to 0.4 |