Grade 36 Titanium vs. SAE-AISI 1140 Steel
Grade 36 titanium belongs to the titanium alloys classification, while SAE-AISI 1140 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is grade 36 titanium and the bottom bar is SAE-AISI 1140 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 11 | |
| 14 to 18 |
| Fatigue Strength, MPa | 300 | |
| 230 to 370 |
| Poisson's Ratio | 0.36 | |
| 0.29 |
| Shear Modulus, GPa | 39 | |
| 72 |
| Shear Strength, MPa | 320 | |
| 370 to 420 |
| Tensile Strength: Ultimate (UTS), MPa | 530 | |
| 600 to 700 |
| Tensile Strength: Yield (Proof), MPa | 520 | |
| 340 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 400 |
| Melting Completion (Liquidus), °C | 2020 | |
| 1460 |
| Melting Onset (Solidus), °C | 1950 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 470 |
| Thermal Expansion, µm/m-K | 8.1 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 58 | |
| 1.4 |
| Embodied Energy, MJ/kg | 920 | |
| 18 |
| Embodied Water, L/kg | 130 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 59 | |
| 89 to 93 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1260 | |
| 310 to 870 |
| Stiffness to Weight: Axial, points | 9.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 23 | |
| 21 to 25 |
| Strength to Weight: Bending, points | 23 | |
| 20 to 22 |
| Thermal Shock Resistance, points | 45 | |
| 18 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.37 to 0.44 |
| Hydrogen (H), % | 0 to 0.0035 | |
| 0 |
| Iron (Fe), % | 0 to 0.030 | |
| 98.4 to 98.9 |
| Manganese (Mn), % | 0 | |
| 0.7 to 1.0 |
| Niobium (Nb), % | 42 to 47 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.16 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Sulfur (S), % | 0 | |
| 0.080 to 0.13 |
| Titanium (Ti), % | 52.3 to 58 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |