ACI-ASTM CB7Cu-2 Steel vs. Grade 23 Titanium
ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while grade 23 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CB7Cu-2 steel and the bottom bar is grade 23 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 5.7 to 11 | |
| 6.7 to 11 |
| Fatigue Strength, MPa | 420 to 590 | |
| 470 to 500 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 75 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 930 to 940 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 850 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 410 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1610 |
| Melting Onset (Solidus), °C | 1380 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 560 |
| Thermal Conductivity, W/m-K | 17 | |
| 7.1 |
| Thermal Expansion, µm/m-K | 11 | |
| 9.4 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.1 | |
| 1.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.4 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 36 |
| Density, g/cm3 | 7.8 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 38 |
| Embodied Energy, MJ/kg | 38 | |
| 610 |
| Embodied Water, L/kg | 130 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 61 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1510 to 3600 | |
| 3430 to 3560 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 35 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 58 to 59 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 48 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 2.9 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 67 to 68 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 5.5 to 6.5 |
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.080 |
| Chromium (Cr), % | 14 to 15.5 | |
| 0 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.013 |
| Iron (Fe), % | 73.6 to 79 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 0 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.13 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 88.1 to 91 |
| Vanadium (V), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |