Grade 19 Titanium vs. ACI-ASTM CB7Cu-2 Steel
Grade 19 titanium belongs to the titanium alloys classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. There are 26 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 19 titanium and the bottom bar is ACI-ASTM CB7Cu-2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 5.6 to 17 | |
| 5.7 to 11 |
| Fatigue Strength, MPa | 550 to 620 | |
| 420 to 590 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 47 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 890 to 1300 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 870 to 1170 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 280 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1430 |
| Melting Onset (Solidus), °C | 1600 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 480 |
| Thermal Conductivity, W/m-K | 6.2 | |
| 17 |
| Thermal Expansion, µm/m-K | 9.1 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 45 | |
| 13 |
| Density, g/cm3 | 5.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 47 | |
| 2.6 |
| Embodied Energy, MJ/kg | 760 | |
| 38 |
| Embodied Water, L/kg | 230 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 70 to 150 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3040 to 5530 | |
| 1510 to 3600 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 33 | |
| 25 |
| Strength to Weight: Axial, points | 49 to 72 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 41 to 53 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 2.4 | |
| 4.6 |
| Thermal Shock Resistance, points | 57 to 83 | |
| 32 to 45 |
Alloy Composition
| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.070 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 14 to 15.5 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 73.6 to 79 |
| Manganese (Mn), % | 0 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 4.5 to 5.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 71.1 to 77 | |
| 0 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |