Grade 23 Titanium vs. EN AC-43500 Aluminum
Grade 23 titanium belongs to the titanium alloys classification, while EN AC-43500 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is grade 23 titanium and the bottom bar is EN AC-43500 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 72 |
| Elongation at Break, % | 6.7 to 11 | |
| 4.5 to 13 |
| Fatigue Strength, MPa | 470 to 500 | |
| 62 to 100 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 40 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 930 to 940 | |
| 220 to 300 |
| Tensile Strength: Yield (Proof), MPa | 850 to 870 | |
| 140 to 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 550 |
| Maximum Temperature: Mechanical, °C | 340 | |
| 170 |
| Melting Completion (Liquidus), °C | 1610 | |
| 600 |
| Melting Onset (Solidus), °C | 1560 | |
| 590 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 900 |
| Thermal Conductivity, W/m-K | 7.1 | |
| 140 |
| Thermal Expansion, µm/m-K | 9.4 | |
| 22 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 38 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 130 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 9.5 |
| Density, g/cm3 | 4.4 | |
| 2.6 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 7.8 |
| Embodied Energy, MJ/kg | 610 | |
| 150 |
| Embodied Water, L/kg | 200 | |
| 1070 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 61 to 100 | |
| 12 to 26 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3430 to 3560 | |
| 130 to 200 |
| Stiffness to Weight: Axial, points | 13 | |
| 16 |
| Stiffness to Weight: Bending, points | 35 | |
| 54 |
| Strength to Weight: Axial, points | 58 to 59 | |
| 24 to 33 |
| Strength to Weight: Bending, points | 48 | |
| 32 to 39 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 60 |
| Thermal Shock Resistance, points | 67 to 68 | |
| 10 to 14 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.5 | |
| 86.4 to 90.5 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.050 |
| Hydrogen (H), % | 0 to 0.013 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.25 |
| Magnesium (Mg), % | 0 | |
| 0.1 to 0.6 |
| Manganese (Mn), % | 0 | |
| 0.4 to 0.8 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.13 | |
| 0 |
| Silicon (Si), % | 0 | |
| 9.0 to 11.5 |
| Titanium (Ti), % | 88.1 to 91 | |
| 0 to 0.2 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.070 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.15 |