ASTM B817 Type II vs. 2024 Aluminum
ASTM B817 type II belongs to the titanium alloys classification, while 2024 aluminum belongs to the aluminum 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 ASTM B817 type II and the bottom bar is 2024 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 71 |
| Elongation at Break, % | 3.0 to 13 | |
| 4.0 to 16 |
| Fatigue Strength, MPa | 390 to 530 | |
| 90 to 180 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 40 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 200 to 540 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 100 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 350 | |
| 200 |
| Melting Completion (Liquidus), °C | 1580 | |
| 640 |
| Melting Onset (Solidus), °C | 1530 | |
| 500 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 880 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 23 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 11 |
| Density, g/cm3 | 4.6 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 8.3 |
| Embodied Energy, MJ/kg | 650 | |
| 150 |
| Embodied Water, L/kg | 220 | |
| 1140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 20 to 68 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 70 to 1680 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 46 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 18 to 50 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 25 to 49 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 8.6 to 24 |
Alloy Composition
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| Aluminum (Al), % | 5.0 to 6.0 | |
| 90.7 to 94.7 |
| Carbon (C), % | 0 to 0.1 | |
| 0 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0 to 0.1 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 3.8 to 4.9 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 0 to 0.5 |
| Magnesium (Mg), % | 0 | |
| 1.2 to 1.8 |
| Manganese (Mn), % | 0 | |
| 0.3 to 0.9 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.5 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 82.1 to 87.8 | |
| 0 to 0.15 |
| Vanadium (V), % | 5.0 to 6.0 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.25 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.15 |