Grade 37 Titanium vs. ASTM A299 Steel
Grade 37 titanium belongs to the titanium alloys classification, while ASTM A299 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is grade 37 titanium and the bottom bar is ASTM A299 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 22 | |
| 21 to 22 |
| Fatigue Strength, MPa | 170 | |
| 230 to 250 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Shear Strength, MPa | 240 | |
| 370 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 590 to 620 |
| Tensile Strength: Yield (Proof), MPa | 250 | |
| 330 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 400 |
| Melting Completion (Liquidus), °C | 1650 | |
| 1460 |
| Melting Onset (Solidus), °C | 1600 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 470 |
| Thermal Conductivity, W/m-K | 21 | |
| 51 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.8 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 1.9 |
| Density, g/cm3 | 4.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 31 | |
| 1.4 |
| Embodied Energy, MJ/kg | 500 | |
| 19 |
| Embodied Water, L/kg | 120 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 76 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 | |
| 290 to 350 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 24 |
| Strength to Weight: Axial, points | 24 | |
| 21 to 22 |
| Strength to Weight: Bending, points | 26 | |
| 20 to 21 |
| Thermal Diffusivity, mm2/s | 8.4 | |
| 14 |
| Thermal Shock Resistance, points | 29 | |
| 17 to 18 |